scripts/data_ext6.py

#!/usr/bin/env python3
"""SecureCodePairs v1.2.0 extension records (part 6): Java deep pack (SCP-000231+).

Brings Java to a deeper pack, built with json-safe helpers.
"""
import json
from typing import List, Dict

L: List[Dict] = []


def rec(**kw):
    L.append(kw)


# 1. SQL injection via concatenated PreparedStatement
rec(id="SCP-000231", language="Java", framework="Spring Boot",
    title="SQL injection via concatenated PreparedStatement",
    description="A Spring repository builds a PreparedStatement query by string concatenation.",
    owasp="A03:2021 - Injection", owasp_api="", owasp_llm="",
    cwe="CWE-89", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="High", difficulty="Intermediate",
    vulnerable_code='String sql = "SELECT * FROM u WHERE name=\'" + name + "\'";\nPreparedStatement ps = c.prepareStatement(sql);  // Vulnerable',
    secure_code='String sql = "SELECT * FROM u WHERE name = ?";\nPreparedStatement ps = c.prepareStatement(sql);\nps.setString(1, name);  // Secure',
    patch='--- a/Repo.java\n+++ b/Repo.java\n@@ -1,3 +1,4 @@\n-String sql = "SELECT * FROM u WHERE name=\'" + name + "\'";\n-PreparedStatement ps = c.prepareStatement(sql);\n+String sql = "SELECT * FROM u WHERE name = ?";\n+PreparedStatement ps = c.prepareStatement(sql);\n+ps.setString(1, name);',
    root_cause="Query string built by concatenation then prepared.",
    attack="name=' OR '1'='1 bypasses auth.",
    impact="Data disclosure.", fix="Use bound parameters only.",
    guideline="Always bind parameters; never concat into SQL.",
    tags=["sqli", "spring", "java", "injection"],
    metadata={"domain": "E-commerce", "input_source": "query_param", "auth_required": False})

# 2. ObjectInputStream deserialization
rec(id="SCP-000232", language="Java", framework="Spring Boot",
    title="Insecure Java deserialization (ObjectInputStream)",
    description="A Spring endpoint reads a serialized Java object from the request.",
    owasp="A08:2021 - Software and Data Integrity Failures", owasp_api="", owasp_llm="",
    cwe="CWE-502", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="Critical", difficulty="Advanced",
    vulnerable_code='ObjectInputStream ois = new ObjectInputStream(req.getInputStream());\nObject o = ois.readObject();  // Vulnerable: gadget chains -> RCE',
    secure_code='MyDto o = objectMapper.readValue(req.getInputStream(), MyDto.class);  // Secure: JSON DTO',
    patch='--- a/Ctrl.java\n+++ b/Ctrl.java\n@@ -1,3 +1,3 @@\n-ObjectInputStream ois = new ObjectInputStream(req.getInputStream());\n-Object o = ois.readObject();\n+MyDto o = objectMapper.readValue(req.getInputStream(), MyDto.class);',
    root_cause="Native Java deserialization of untrusted bytes.",
    attack="Send a gadget-chain payload for RCE.",
    impact="Remote code execution.", fix="Avoid native deserialization; use JSON DTOs.",
    guideline="Never deserialize untrusted Java objects.",
    tags=["deserialization", "spring", "java", "rce"],
    metadata={"domain": "Microservices", "input_source": "request_body", "auth_required": False})

# 3. XMLDecoder RCE
rec(id="SCP-000233", language="Java", framework="Spring Boot",
    title="XMLDecoder remote code execution",
    description="A Spring endpoint uses XMLDecoder to parse client XML.",
    owasp="A08:2021 - Software and Data Integrity Failures", owasp_api="", owasp_llm="",
    cwe="CWE-502", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="Critical", difficulty="Advanced",
    vulnerable_code='XMLDecoder d = new XMLDecoder(inputStream);\nObject o = d.readObject();  // Vulnerable: executes <void method=...>',
    secure_code='JAXBContext ctx = JAXBContext.newInstance(Dto.class);\nDto o = (Dto) ctx.createUnmarshaller().unmarshal(safeSource);  // Secure',
    patch='--- a/Ctrl.java\n+++ b/Ctrl.java\n@@ -1,3 +1,3 @@\n-XMLDecoder d = new XMLDecoder(inputStream);\n-Object o = d.readObject();\n+JAXBContext ctx = JAXBContext.newInstance(Dto.class);\n+Dto o = (Dto) ctx.createUnmarshaller().unmarshal(safeSource);',
    root_cause="XMLDecoder evaluates method elements as code.",
    attack="Craft <void method=\"exec\"> payload for RCE.",
    impact="Remote code execution.", fix="Replace XMLDecoder with JAXB/JSON DTOs.",
    guideline="Never use XMLDecoder on untrusted XML.",
    tags=["deserialization", "spring", "java", "rce"],
    metadata={"domain": "Backend", "input_source": "request_body", "auth_required": False})

# 4. Path traversal in FileSystem
rec(id="SCP-000234", language="Java", framework="Spring Boot",
    title="Path traversal in file servlet",
    description="A Spring controller reads a file using a raw request path.",
    owasp="A01:2021 - Broken Access Control", owasp_api="", owasp_llm="",
    cwe="CWE-22", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="High", difficulty="Intermediate",
    vulnerable_code='@GetMapping("/file")\npublic Resource file(@RequestParam String p) {\n  return new FileSystemResource("/data/" + p);  // Vulnerable: traversal\n}',
    secure_code='@GetMapping("/file")\npublic Resource file(@RequestParam String p) {\n  Path base = Paths.get("/data").toRealPath();\n  Path full = base.resolve(p).normalize();\n  if (!full.startsWith(base)) throw new ResponseStatusException(FORBIDDEN);  // Secure\n  return new FileSystemResource(full);\n}',
    patch='--- a/FileCtrl.java\n+++ b/FileCtrl.java\n@@ -1,4 +1,7 @@\n-  return new FileSystemResource("/data/" + p);\n+  Path base = Paths.get("/data").toRealPath();\n+  Path full = base.resolve(p).normalize();\n+  if (!full.startsWith(base)) throw new ResponseStatusException(FORBIDDEN);\n+  return new FileSystemResource(full);',
    root_cause="Unsanitized path joined to base dir.",
    attack="p=../../etc/passwd reads arbitrary file.",
    impact="File disclosure.", fix="Resolve and confine to base dir.",
    guideline="Confine file paths to a base directory.",
    tags=["path-traversal", "spring", "java", "file-read"],
    metadata={"domain": "Backend", "input_source": "query_param", "auth_required": False})

# 5. Missing @PreAuthorize on admin
rec(id="SCP-000235", language="Java", framework="Spring Boot",
    title="Missing method-level authorization (IDOR/admin)",
    description="A Spring admin endpoint lacks @PreAuthorize, allowing any user.",
    owasp="A01:2021 - Broken Access Control", owasp_api="API1:2023 - Broken Object Level Authorization", owasp_llm="",
    cwe="CWE-862", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="Critical", difficulty="Intermediate",
    vulnerable_code='@DeleteMapping("/admin/user/{id}")\npublic void delete(@PathVariable Long id) {  // Vulnerable: no role check\n  repo.delete(id);\n}',
    secure_code='@PreAuthorize("hasRole(\'ADMIN\')")  // Secure\n@DeleteMapping("/admin/user/{id}")\npublic void delete(@PathVariable Long id) {\n  repo.delete(id);\n}',
    patch='--- a/AdminCtrl.java\n+++ b/AdminCtrl.java\n@@ -1,4 +1,5 @@\n+@PreAuthorize("hasRole(\'ADMIN\')")\n @DeleteMapping("/admin/user/{id}")\n public void delete(@PathVariable Long id) {\n   repo.delete(id);\n }',
    root_cause="No method-level authorization on admin route.",
    attack="Any authenticated user deletes any account.",
    impact="Privilege escalation.", fix="Add @PreAuthorize role checks.",
    guideline="Enforce role checks on sensitive methods.",
    tags=["authorization", "spring", "java", "broken-access-control"],
    metadata={"domain": "Authentication systems", "input_source": "path_param", "auth_required": True})

# 6. Hardcoded API key
rec(id="SCP-000236", language="Java", framework="Spring Boot",
    title="Hardcoded API key in source",
    description="A Spring service hardcodes a third-party API key.",
    owasp="A02:2021 - Cryptographic Failures", owasp_api="", owasp_llm="",
    cwe="CWE-798", mitre_attack="T1552.001 - Unsecured Credentials: Credentials In Files",
    severity="High", difficulty="Beginner",
    vulnerable_code='private static final String KEY = "sk_live_1a2b3c4d";  // Vulnerable',
    secure_code='@Value("${PAYMENT_API_KEY}")  // Secure: from env/secret\nprivate String key;',
    patch='--- a/Payment.java\n+++ b/Payment.java\n@@ -1,2 +1,2 @@\n-private static final String KEY = "sk_live_1a2b3c4d";\n+@Value("${PAYMENT_API_KEY}")\n+private String key;',
    root_cause="Secret in source.",
    attack="Repo access reveals the key.",
    impact="Payment fraud.", fix="Use env/secret manager.",
    guideline="Externalize secrets.",
    tags=["secrets", "spring", "java", "config"],
    metadata={"domain": "Banking", "input_source": "source_code", "auth_required": False})

# 7. XSS in Thymeleaf unescaped
rec(id="SCP-000237", language="Java", framework="Spring Boot",
    title="XSS via Thymeleaf th:utext",
    description="A Thymeleaf template renders user input with th:utext (unescaped).",
    owasp="A03:2021 - Injection", owasp_api="", owasp_llm="",
    cwe="CWE-79", mitre_attack="T1059.007 - Command and Scripting Interpreter: JavaScript",
    severity="Medium", difficulty="Beginner",
    vulnerable_code='<div th:utext="${comment}"></div>  <!-- Vulnerable: unescaped -->',
    secure_code='<div th:text="${comment}"></div>  <!-- Secure: escaped -->',
    patch='--- a/post.html\n+++ b/post.html\n@@ -1,2 +1,2 @@\n-<div th:utext="${comment}"></div>\n+<div th:text="${comment}"></div>',
    root_cause="Unescaped output in template.",
    attack="comment=<script>steal()</script> runs.",
    impact="XSS.", fix="Use th:text (escaped).",
    guideline="Escape all user output in templates.",
    tags=["xss", "spring", "java", "template"],
    metadata={"domain": "E-commerce", "input_source": "db", "auth_required": False})

# 8. No rate limit on login
rec(id="SCP-000238", language="Java", framework="Spring Boot",
    title="No rate limit on authentication",
    description="A Spring login endpoint has no rate limiting, enabling brute force.",
    owasp="A07:2021 - Identification and Authentication Failures", owasp_api="API4:2023 - Unrestricted Resource Consumption", owasp_llm="",
    cwe="CWE-307", mitre_attack="T1110 - Brute Force",
    severity="Medium", difficulty="Beginner",
    vulnerable_code='@PostMapping("/login")\npublic String login(String u, String p) {  // Vulnerable: no throttle\n  auth(u, p); return "ok";\n}',
    secure_code='@PostMapping("/login")\n@RateLimiter(key = "#u", limit = 5, duration = 60)  // Secure\npublic String login(String u, String p) {\n  auth(u, p); return "ok";\n}',
    patch='--- a/AuthCtrl.java\n+++ b/AuthCtrl.java\n@@ -1,4 +1,5 @@\n-  auth(u, p); return "ok";\n+@RateLimiter(key = "#u", limit = 5, duration = 60)\n+public String login(String u, String p) {\n+  auth(u, p); return "ok";',
    root_cause="No throttling on auth.",
    attack="Credential stuffing / brute force.",
    impact="Account takeover.", fix="Rate limit login attempts.",
    guideline="Throttle authentication endpoints.",
    tags=["rate-limiting", "spring", "java", "auth"],
    metadata={"domain": "Authentication systems", "input_source": "request_body", "auth_required": False})

# 9. Unsafe reflection
rec(id="SCP-000239", language="Java", framework="Spring Boot",
    title="Arbitrary class instantiation via reflection",
    description="A Spring handler instantiates a class whose name comes from the request.",
    owasp="A03:2021 - Injection", owasp_api="", owasp_llm="",
    cwe="CWE-470", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="High", difficulty="Advanced",
    vulnerable_code='String cls = req.getParameter("cls");\nObject o = Class.forName(cls).getDeclaredConstructor().newInstance();  // Vulnerable',
    secure_code='private static final Set<String> ALLOWED = Set.of("com.app.A", "com.app.B");\nString cls = req.getParameter("cls");\nif (!ALLOWED.contains(cls)) throw new IllegalArgumentException("bad cls");  // Secure\nObject o = Class.forName(cls).getDeclaredConstructor().newInstance();',
    patch='--- a/Ctrl.java\n+++ b/Ctrl.java\n@@ -1,3 +1,5 @@\n-String cls = req.getParameter("cls");\n-Object o = Class.forName(cls).getDeclaredConstructor().newInstance();\n+private static final Set<String> ALLOWED = Set.of("com.app.A", "com.app.B");\n+if (!ALLOWED.contains(cls)) throw new IllegalArgumentException("bad cls");\n+Object o = Class.forName(cls).getDeclaredConstructor().newInstance();',
    root_cause="Unrestricted reflection on user input.",
    attack="cls=java.lang.Runtime loads attacker-chosen class.",
    impact="Arbitrary code / RCE.", fix="Allowlist reflectable classes.",
    guideline="Allowlist classes for reflection.",
    tags=["injection", "spring", "java", "reflection"],
    metadata={"domain": "Backend", "input_source": "query_param", "auth_required": False})

# 10. CORS wildcard with credentials
rec(id="SCP-000240", language="Java", framework="Spring Boot",
    title="CORS allow-all with credentials",
    description="A Spring CORS config permits any origin together with credentials.",
    owasp="A05:2021 - Security Misconfiguration", owasp_api="", owasp_llm="",
    cwe="CWE-942", mitre_attack="T1190 - Exploit Public-Facing Application",
    severity="Medium", difficulty="Beginner",
    vulnerable_code='config.setAllowedOriginPatterns(Arrays.asList("*"));  // Vulnerable\nconfig.setAllowCredentials(true);',
    secure_code='config.setAllowedOrigins(Arrays.asList("https://app.example.com"));  // Secure\nconfig.setAllowCredentials(true);',
    patch='--- a/Cors.java\n+++ b/Cors.java\n@@ -1,3 +1,3 @@\n-config.setAllowedOriginPatterns(Arrays.asList("*"));\n+config.setAllowedOrigins(Arrays.asList("https://app.example.com"));',
    root_cause="Wildcard origin with credentials.",
    attack="Malicious site reads responses with victim cookies.",
    impact="Cross-origin data theft.", fix="Pin origins; never * with credentials.",
    guideline="Restrict CORS origins.",
    tags=["cors", "spring", "java", "config"],
    metadata={"domain": "E-commerce", "input_source": "header", "auth_required": True})

RECORDS_EXT6 = L