π‘οΈ Sentinel: [HIGH] JSON μμ§λ ¬ν(Unbounded Deserialization) μ·¨μ½μ μμ - #341
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`python/fast_mlsirm/report.py`μ `render_diagnostics_report` ν¨μμμ νμ€ λΌμ΄λΈλ¬λ¦¬μΈ `json.loads(source.read_text())`λ₯Ό μ¬μ©νμ¬ JSON νμΌμ μ ν μμ΄ λ©λͺ¨λ¦¬μ μ½κ³ νμ±νλ λ¬Έμ λ₯Ό ν΄κ²°νμ΅λλ€. μ΄λ‘ μΈν΄ λμ©λ νμΌμ΄λ μ§λμΉκ² κΉμ κ³μΈ΅μ JSONμ μ²λ¦¬ν λ OOMμ΄λ `RecursionError`κ° λ°μνμ¬ DoS 곡격μ λμμ΄ λ μ μμμ΅λλ€. μ΄λ₯Ό μμ νκΈ° μν΄ `fast_mlsirm.io`μ `_load_json_bounded`λ₯Ό μ¬μ©νλλ‘ λ³κ²½νμμΌλ©°, μ΄λ₯Ό ν΅ν΄ νμΌ ν¬κΈ° μ ν(32MB) λ° μ€μ²© κΉμ΄ μ ν(128λ¨κ³)μ κ°μ νμ¬ λ°©μ΄λ ₯μ λμμ΅λλ€.
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μ€λ³΅/junk μ 리: JSON DoS μμ μ·¨μ§λ 리뷰 λκΈ° μ€μΈ #203 κ³Ό λμΌνλ©°, μ΄ PRμλ PoC μ°μΆλ¬Ό( Generated by Claude Code |
μκ² μ΅λλ€. μ€μλ‘ ν¬ν¨λ PoC μ°μΆλ¬Ό(deep.json, deep2.json, poc.py)μ μ€ν μ΄μ§μμ μ μΈνκ³ μμ λλ ν 리μμ μμ μλ£νμ΅λλ€. ν΄λΉ PRμ΄ λ€λ₯Έ μμ (#203)κ³Ό μ€λ³΅λμ΄ νμ¬λ‘μλ λ«νλ μν©μ΄λΌλ μ μ μμ§νμμ΅λλ€. μ΄ λΈλμΉμ 컀λ°μ λ°μν΄λμμ΅λλ€. |
π‘οΈ Sentinel: [HIGH] JSON μμ§λ ¬ν(Unbounded Deserialization) μ·¨μ½μ μμ
π¨ Severity: HIGH
π‘ Vulnerability:
python/fast_mlsirm/report.pyμrender_diagnostics_reportν¨μμμ μ ν μμ΄ λμ©λ νμΌ λ° κΉκ² μ€μ²©λ JSONμjson.loads(source.read_text())λ₯Ό ν΅ν΄ μ²λ¦¬νκ³ μμμ΅λλ€.π― Impact: λμ©λ νμΌ λλ 무νν μ€μ²©λ JSON μ 곡 μ OOM(Out of Memory)μ΄λ
RecursionErrorλ₯Ό μ λ°νμ¬ μ ν리μΌμ΄μ μ μ μμ μΈ μλμ μ€μ§μν¬ μ μλ μλΉμ€ κ±°λΆ(DoS) μ·¨μ½μ μ΄ μ‘΄μ¬νμ΅λλ€.π§ Fix: νμ€
json.loads(source.read_text())νΈμΆμ 보μ μ μμ ν μ€μ μ νΈλ¦¬ν°μΈfast_mlsirm.io._load_json_boundedλ‘ κ΅μ²΄νμμ΅λλ€. μ΄ λ³κ²½μ ν΅ν΄ νμΌ ν¬κΈ°λ μ΅λMAX_JSON_INPUT_BYTES(32MB), μ€μ²© κΉμ΄λMAX_JSON_NESTING_DEPTH(128)λ₯Ό λμ§ λͺ»νλλ‘ μ ννμ΅λλ€. λν.jules/sentinel.mdμ κ΄λ ¨λ κ΅νμ κΈ°λ‘νμ΅λλ€.β Verification:
uv run fast-mlsirm render-report --diagnostics deep.json --out out.htmlμ μ€νν©λλ€.uv run pytest tests/λ‘ μ²΄ν¬νμ΅λλ€.PR created automatically by Jules for task 13370874966248868334 started by @seonghobae