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πŸ›‘οΈ Sentinel: [CRITICAL] Fix Data Integrity Loss via Negative Grep#120

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πŸ›‘οΈ Sentinel: [CRITICAL] Fix Data Integrity Loss via Negative Grep#120
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sentinel-fix-negative-grep-data-loss-15331737750300903575

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@seonghobae

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🚨 Severity: CRITICAL
πŸ’‘ Vulnerability: R의 κΈ°λ³Έ grep() ν•¨μˆ˜λŠ” 검색 κ²°κ³Όκ°€ 없을 λ•Œ integer(0)을 λ°˜ν™˜ν•©λ‹ˆλ‹€. 이λ₯Ό 벑터 μΈλ±μ‹±μ—μ„œ 음수 기호(-)와 ν•¨κ»˜ μ‚¬μš©ν•˜μ—¬ μš”μ†Œλ₯Ό μ œμ™Έν•˜λ €κ³  ν•  λ•Œ(예: x[-c(grep(...))]), 전체 벑터가 μ‚­μ œλ˜μ–΄ character(0)이 λ°˜ν™˜λ˜λŠ” 데이터 무결성 훼손 취약점이 μ‘΄μž¬ν–ˆμŠ΅λ‹ˆλ‹€. 이둜 인해 IPDParmNames λ²‘ν„°μ˜ 데이터가 μœ μ‹€λ˜μ–΄ ν•˜μœ„ 둜직이 μ˜€μž‘λ™ν•  μœ„ν—˜μ΄ μžˆμŠ΅λ‹ˆλ‹€.
🎯 Impact: νŠΉμ • 쑰건 ν•˜μ—μ„œ λ§€κ°œλ³€μˆ˜ 필터링을 μˆ˜ν–‰ν•  λ•Œ 데이터가 μ™„μ „νžˆ μœ μ‹€λ˜μ–΄ μΆ”ν›„ λͺ¨ν˜• μΆ”μ •μ΄λ‚˜ νŒŒλΌλ―Έν„° 맀핑에 치λͺ…적인 영ν–₯을 λ―ΈμΉ  수 μžˆμŠ΅λ‹ˆλ‹€ (무결성 손싀/κΈ°λŠ₯ κ³ μž₯).
πŸ”§ Fix: μ—¬λŸ¬ 개의 grep() 결합을 단일 grepl()을 μ΄μš©ν•œ 논리 λΆ€μ •(!grepl(...))으둜 κ΅μ²΄ν•˜μ—¬, λ§€μΉ­λ˜λŠ” νŒ¨ν„΄μ΄ 없을 λ•Œμ—λ„ 벑터가 μ˜¨μ „νžˆ λ³΄μ‘΄λ˜λ„λ‘ λ¦¬νŒ©ν† λ§ν–ˆμŠ΅λ‹ˆλ‹€.
βœ… Verification: λ³€κ²½ 사항 적용 ν›„ R νŒ¨ν‚€μ§€ 둜컬 λΉŒλ“œ(install.packages) 및 testthat ν…ŒμŠ€νŠΈ μŠ€μœ„νŠΈ(Rscript -e "testthat::test_dir('tests/testthat')")λ₯Ό μ‹€ν–‰ν•˜μ—¬ λͺ¨λ“  ν•­λͺ©(총 20개 ν…ŒμŠ€νŠΈ)이 μ„±κ³΅μ μœΌλ‘œ 톡과함을 κ²€μ¦ν–ˆμŠ΅λ‹ˆλ‹€. μΆ”κ°€λ‘œ κ΄€λ ¨λœ λ³΄μ•ˆ 이슈 사항을 .jules/sentinel.md 저널에 μƒμ„Ένžˆ κΈ°λ‘ν–ˆμŠ΅λ‹ˆλ‹€.


PR created automatically by Jules for task 15331737750300903575 started by @seonghobae

… 데이터 무결성 손싀 취약점을 방금 μˆ˜μ •ν•˜μ—¬ μ•ˆλ‚΄ν•΄ λ“œλ¦½λ‹ˆλ‹€.

κΈ°μ‘΄ μ½”λ“œμ—μ„œλŠ” λ§€μΉ˜λ˜λŠ” ν•­λͺ©μ΄ 없을 경우 빈 인덱슀(`integer(0)`)λ₯Ό λ°˜ν™˜ν•˜λŠ” νŒ¨ν„΄ 검색 ν•¨μˆ˜λ₯Ό `c()`둜 λ¬Άμ–΄ 벑터 μΈλ±μ‹±μ—μ„œ μ œμ™Έ(`-c(...)`)ν•˜λ €κ³  ν•  λ•Œ, μ˜λ„μΉ˜ μ•Šκ²Œ 전체 벑터가 μ‚­μ œλ˜μ–΄ `character(0)`이 λ°˜ν™˜λ˜λŠ” 치λͺ…적인 결함이 μžˆμ—ˆμŠ΅λ‹ˆλ‹€. 이둜 인해 νŒŒλΌλ―Έν„° 리슀트(`IPDParmNames`)κ°€ λΉ„μ›Œμ§€λ©΄μ„œ 후속 λ‘œμ§μ— 였λ₯˜λ₯Ό μœ λ°œν•  수 μžˆμ—ˆμŠ΅λ‹ˆλ‹€.

이 취약점을 ν•΄κ²°ν•˜κΈ° μœ„ν•΄ 인덱슀 λŒ€μ‹  논리값(True/False)을 λ°˜ν™˜ν•˜λŠ” νŒ¨ν„΄ λ§€μΉ­ ν•¨μˆ˜λ₯Ό μ‚¬μš©ν•˜λŠ” λ°©μ‹μœΌλ‘œ μ½”λ“œλ₯Ό λ¦¬νŒ©ν† λ§ν–ˆμŠ΅λ‹ˆλ‹€. μ—¬λŸ¬ μ •κ·œν‘œν˜„μ‹μ„ ν•˜λ‚˜λ‘œ κ²°ν•©ν•˜μ—¬ λΆ€μ • λ§€μΉ­(예: `"^(MEAN|COV|ak|d0$)"` νŒ¨ν„΄μ΄ μ•„λ‹Œ 것을 필터링)을 μˆ˜ν–‰ν•˜λ„λ‘ λ³€κ²½ν–ˆμœΌλ©°, 이λ₯Ό 톡해 맀치 κ²°κ³Όκ°€ 없을 λ•Œλ„ 벑터가 μ •μƒμ μœΌλ‘œ λ³΄μ‘΄λ˜λ„λ‘ μ•ˆμ „ν•˜κ²Œ κ°œμ„ ν–ˆμŠ΅λ‹ˆλ‹€.

이와 ν•¨κ»˜ ν•΄λ‹Ή 취약점에 λŒ€ν•œ 뢄석과 ν–₯ν›„ 예방 지침을 `.jules/sentinel.md` 저널에 꼼꼼히 기둝해 λ‘μ—ˆμŠ΅λ‹ˆλ‹€. μˆ˜μ •λœ 사항과 κ΄€λ ¨ν•˜μ—¬ κΆκΈˆν•œ 점이 μžˆμœΌμ‹œλ‹€λ©΄ μ–Έμ œλ“  말씀해 μ£Όμ„Έμš”!
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@seonghobae

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Closing as superseded by lower-number PR #111, which carries the same negative-grep data-integrity fix for IPDParmNames. Keeping this later duplicate open would create duplicate review/check churn without adding a new code path or test surface.

@seonghobae seonghobae closed this Jul 9, 2026
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Closing as superseded by lower-number PR #111, which carries the same negative-grep data-integrity fix for IPDParmNames. Keeping this later duplicate open would create duplicate review/check churn without adding a new code path or test surface.

Understood. Acknowledging that this work is now obsolete and superseded by PR #111, and stopping work on this task.

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