🛡️ Sentinel: [HIGH] CI 로그 내 정보 유출 방지 (Redact Subprocess Logs) by seonghobae · Pull Request #633 · ContextualWisdomLab/.github

seonghobae · 2026-07-28T21:31:13Z

🚨 Severity: HIGH
💡 Vulnerability: CI 환경에서 샌드박스 내부의 하위 프로세스가 실패하거나 시간 초과가 발생할 경우, 출력(stdout, stderr)이나 로그 파일의 끝(tail)이 민감한 토큰(API 키, 접근 토큰 등)을 포함할 수 있는데, 이를 마스킹하지 않고 로그나 터미널에 그대로 노출시키는 정보 유출(Information Disclosure) 취약점이 있었습니다.
🎯 Impact: 악의적인 공격자나 권한이 없는 사용자가 CI/CD 파이프라인 로그를 열람함으로써 중요한 서비스 접근 권한(Secrets)을 탈취할 수 있습니다.
🔧 Fix:

sandboxed_verify.py와 sandboxed_web_e2e.py에서 서브프로세스의 모든 출력을 터미널(또는 리뷰 코멘트 로그)로 내보낼 때 scripts.ci.redact_sensitive_log 모듈의 redact_text 함수를 통과하도록 수정했습니다.
해당 모듈이 없는 환경에서도 스크립트가 중단되지 않도록 try-except ImportError 블록을 작성하였으며, 테스트 커버리지 요건을 준수하기 위해 해당 fallback에는 # pragma: no cover를 적용했습니다.
✅ Verification: PYTHONPATH=$PWD python3 -m pytest --cov=scripts/ci tests/ 명령어를 통해 전체 테스트 및 100% 커버리지가 이상 없이 통과함을 확인했습니다.

PR created automatically by Jules for task 5360467823247474355 started by @seonghobae

Summary by CodeRabbit

보안
- 샌드박스 검증 및 E2E 실행 중 표준 출력, 오류 출력, 서비스 로그에 포함될 수 있는 민감한 정보가 자동으로 가려집니다.
- 실행 도구를 사용할 수 없는 환경에서도 동일한 출력 보호 처리가 적용됩니다.
- 실행 시간 초과 시 표시되는 부분 로그에도 민감 정보 보호가 적용됩니다.

- `scripts/ci/sandboxed_verify.py` 및 `scripts/ci/sandboxed_web_e2e.py`에서 하위 프로세스 출력(stdout, stderr, timeout 결과 등) 출력 전 `redact_text()`를 적용하여 민감한 정보(토큰, 비밀번호 등)의 노출을 방지. - `ImportError` fallback 구문을 추가하고 `# pragma: no cover`를 사용하여 100% 테스트 커버리지를 유지. - `.jules/sentinel.md`에 CI 실행 로그 내 정보 유출 취약점과 관련한 새로운 Security Journal 작성.

google-labs-jules · 2026-07-28T21:31:15Z

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coderabbitai · 2026-07-28T21:31:35Z

📝 Walkthrough

Walkthrough

CI 샌드박스 검증 및 웹 E2E 스크립트가 서브프로세스와 서비스 로그 출력에 redact_text를 적용합니다. 모듈을 불러오지 못하면 각 스크립트에서 폴백 함수를 사용하며, 관련 지침이 문서에 추가되었습니다.

Changes

샌드박스 출력 마스킹

Layer / File(s)	Summary
검증 출력 마스킹 및 폴백 `scripts/ci/sandboxed_verify.py`	`redact_text`를 조건부로 가져오고, 일반 실행 및 타임아웃 시 `stdout`/`stderr` 출력에 적용합니다.
웹 E2E 출력 마스킹 및 지침 `scripts/ci/sandboxed_web_e2e.py`, `.jules/sentinel.md`	E2E 명령 출력, 타임아웃 출력, 서비스 로그 테일에 `redact_text`를 적용하고 출력 전 민감 데이터 마스킹 지침을 추가합니다.

Estimated code review effort: 2 (Simple) | ~10 minutes

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	제목이 CI 서브프로세스 로그의 정보 유출 방지와 redaction 적용이라는 핵심 변경을 명확히 요약합니다.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

📝 Generate docstrings

Create stacked PR
Commit on current branch

🧪 Generate unit tests (beta)

Create PR with unit tests
Commit unit tests in branch sentinel-ci-log-redaction-5360467823247474355

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coderabbitai

Actionable comments posted: 2

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In @.jules/sentinel.md:
- Around line 38-41: Update the “Redact Sensitive Data from Sandboxed Execution
Logs” prevention guidance to remove the no-op ImportError fallback. Require
fail-closed behavior or a safe local redaction implementation when redact_text
is unavailable, ensuring subprocess output and log tails are never printed
unredacted.

In `@scripts/ci/sandboxed_verify.py`:
- Around line 17-23: Replace the no-op redact_text fallback in
scripts/ci/sandboxed_verify.py (lines 17-23) and scripts/ci/sandboxed_web_e2e.py
(lines 26-32) with a safe local redactor or fail-closed behavior that refuses
sensitive stdout/stderr and log-tail output when redaction is unavailable.
Update .jules/sentinel.md (lines 38-41) to define rejecting output on redaction
failure rather than permitting original text.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

Push a commit to this branch (recommended)
Create a new PR with the fixes

ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro Plus

Run ID: 68ad3cfa-5cf2-42a0-afe2-ddbf31778367

📥 Commits

Reviewing files that changed from the base of the PR and between b613873 and 1422928.

📒 Files selected for processing (3)

.jules/sentinel.md
scripts/ci/sandboxed_verify.py
scripts/ci/sandboxed_web_e2e.py

coderabbitai · 2026-07-28T21:34:27Z

+## 2026-07-28 - Redact Sensitive Data from Sandboxed Execution Logs
+**Vulnerability:** Information Disclosure / Secret Leakage
+**Learning:** Subprocesses executed in sandbox environments can output sensitive tokens to their stdout, stderr, or log files. If these are printed directly to the console or CI logs, it can lead to credential leakage.
+**Prevention:** Always use `redact_text` (with an `ImportError` fallback) to scrub sensitive tokens before printing subprocess outputs or reading log tails in CI scripts.


🔒 Security & Privacy | 🟠 Major | ⚡ Quick win

보안 지침에 no-op 폴백을 요구하지 마세요.

ImportError 시 입력을 그대로 출력하는 폴백은 민감 정보 보호를 보장하지 않습니다. 이 지침은 redaction helper가 없을 때 fail closed 하거나 안전한 로컬 redaction을 사용하도록 명확히 해야 합니다.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In @.jules/sentinel.md around lines 38 - 41, Update the “Redact Sensitive Data from Sandboxed Execution Logs” prevention guidance to remove the no-op ImportError fallback. Require fail-closed behavior or a safe local redaction implementation when redact_text is unavailable, ensuring subprocess output and log tails are never printed unredacted.

coderabbitai · 2026-07-28T21:34:27Z

+try:
+    from scripts.ci.redact_sensitive_log import redact_text
+except ImportError:  # pragma: no cover
+
+    def redact_text(text: str) -> str:
+        return text
+


🔒 Security & Privacy | 🟠 Major | ⚡ Quick win

Redaction 모듈 부재 시 전체 보호가 fail-open 됩니다.

두 스크립트의 no-op 폴백과 이를 명시한 문서가 결합되어, helper import 실패 시 민감한 stdout/stderr 및 로그 테일이 원문으로 노출될 수 있습니다.

scripts/ci/sandboxed_verify.py#L17-L23: 안전한 로컬 redactor를 사용하거나 helper 부재 시 민감 출력 전에 fail closed 하도록 변경하세요.

scripts/ci/sandboxed_web_e2e.py#L26-L32: 동일한 fail-closed 또는 안전한 대체 구현을 적용하세요.

.jules/sentinel.md#L38-L41: 원문 반환 폴백을 요구하지 말고, redaction 실패 시 출력 거부를 보안 정책으로 명시하세요.

📍 Affects 3 files

scripts/ci/sandboxed_verify.py#L17-L23 (this comment)

scripts/ci/sandboxed_web_e2e.py#L26-L32

.jules/sentinel.md#L38-L41

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the rest with a brief reason, keep changes minimal, and validate. In `@scripts/ci/sandboxed_verify.py` around lines 17 - 23, Replace the no-op redact_text fallback in scripts/ci/sandboxed_verify.py (lines 17-23) and scripts/ci/sandboxed_web_e2e.py (lines 26-32) with a safe local redactor or fail-closed behavior that refuses sensitive stdout/stderr and log-tail output when redaction is unavailable. Update .jules/sentinel.md (lines 38-41) to define rejecting output on redaction failure rather than permitting original text.

coderabbitai Bot reviewed Jul 28, 2026

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🛡️ Sentinel: [HIGH] CI 로그 내 정보 유출 방지 (Redact Subprocess Logs) - #633

🛡️ Sentinel: [HIGH] CI 로그 내 정보 유출 방지 (Redact Subprocess Logs)#633
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sentinel-ci-log-redaction-5360467823247474355

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