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Marius CiepluchandClaude Opus 4.8 cf9f945992 feat(detection): language-scoped rules + multi-language benchmark corpora
Rebuild the quick-scan detection engine and ground-truth benchmarks to hit
>=90% recall / <10% false positives for C/C++, Python, JavaScript, and Java.

Engine (findings.py, preprocess.py):
- Scope each PatternRule by language (fixes cross-language false positives such
  as the Python eval/exec rule firing on JS .exec()).
- Add JavaScript/TypeScript rules (command exec, eval/Function, reflected XSS,
  SQLi, path traversal, SSRF, weak hash, deserialization); execFile/spawn-argv
  excluded as safe alternatives.
- Add Java rules (Runtime exec, SQL string concatenation, weak hash, readObject)
  and a Groovy server-side template rule (yieldUnescaped of a bound variable).
- Broaden C/C++ and Python coverage; precision guards for format strings and
  parameterised vs concatenated SQL; #-comment skipping; CWE in rationale.
- Register .java/.groovy/.tpl source extensions.

Benchmarks:
- Add realistic corpora modeled on Damn Vulnerable C/C++, PyGoat/DVPWA, and
  NodeGoat, plus the real kiview/damn-vulnerable-spring-boot-app vendored
  verbatim (MIT, attribution in LICENSE/NOTICE.md). Each manifest carries
  complete, independently-labeled ground truth including genuinely
  hard-to-detect vulns (integer overflow, second-order SQLi, prototype
  pollution) so recall is measured honestly, plus safe-API files for precision.
- Fix pre-existing smoke-manifest ground-truth errors (Python/JS line offsets,
  missing C/C++ strcpy entry, Java SQLi line).

benchmark.py:
- Fix sink matching to normalise the expected sink consistently so sinks with
  underscores (e.g. render_template_string) can match.

Tests:
- Add tests/test_detection_benchmarks.py enforcing the >=90% recall / <10% FP
  goal per language and overall.

Measured: C/C++ 93.3%, Python 93.3%, JavaScript 92.3%, Java 100%;
overall 93.6% recall, 0.0% false-positive rate.

Co-Authored-By: Claude Opus 4.8 <[email protected]>
2026-06-21 11:49:31 +02:00

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name = "c-cpp-smoke"
language = "c_cpp"
frameworks = ["native"]
setup = []
modes = ["quick", "standard"]
known_noise = []
baselines = []
[source]
type = "local"
path = "../fixtures/c-cpp-smoke"
[[expected]]
cwe = "CWE-120"
class = "unsafe memory copy"
path = "src/vuln.cpp"
line = 4
rule_id = "c-unsafe-memory-copy"
sink = "memcpy"
evidence = "memcpy copies attacker-controlled input into a fixed buffer"
[[expected]]
cwe = "CWE-120"
class = "buffer overflow"
path = "src/vuln.cpp"
line = 8
rule_id = "c-unsafe-copy"
sink = "strcpy"
evidence = "strcpy copies attacker-controlled input into a fixed buffer"
[[expected]]
cwe = "CWE-78"
class = "command injection"
path = "src/vuln.cpp"
line = 9
rule_id = "c-shell-exec"
sink = "system"
evidence = "system executes attacker-controlled shell command"