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πŸ›‘οΈ Sentinel: [CRITICAL] Fix PDF compilation RCE vulnerabilities#370

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sentinel/fix-pdf-rce-4171164387063333793
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πŸ›‘οΈ Sentinel: [CRITICAL] Fix PDF compilation RCE vulnerabilities#370
anchapin wants to merge 2 commits into
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sentinel/fix-pdf-rce-4171164387063333793

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🚨 Severity: CRITICAL
πŸ’‘ Vulnerability: Remote Code Execution (RCE) via LaTeX compilation and Denial of Service (DoS) via compilation hangs.
🎯 Impact: A malicious LaTeX file passed to PDF compilation functions could invoke arbitrary shell commands using pdflatex or pandoc if -no-shell-escape is omitted. Additionally, a malformed file could cause compilation to hang forever without a timeout, leading to application starvation.
πŸ”§ Fix: Enforced the -no-shell-escape flag for pdflatex directly and pandoc via --pdf-engine-opt within PDFConverter and CoverLetterGenerator. Added timeout=30 and proper process cleanup to subprocess.Popen.communicate() to prevent hangs.
βœ… Verification: Test coverage added in tests/test_pdf_security.py to ensure correct arguments are passed and timeout exceptions properly terminate the target process. Full suite executed and passing.


PR created automatically by Jules for task 4171164387063333793 started by @anchapin

Adds `-no-shell-escape` flags to pdflatex and pandoc executions in
PDFConverter and CoverLetterGenerator to prevent arbitrary remote code
execution during LaTeX compilation. Also introduces a 30-second timeout
to prevent denial-of-service via infinite compilation loops, matching the
security implementations seen in other modules like TemplateGenerator.
Comprehensive tests added to enforce these properties.

Co-authored-by: anchapin <[email protected]>
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Sorry @anchapin, you have reached your weekly rate limit of 500000 diff characters.

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Fix import sorting in `cli/generators/cover_letter_generator.py` and `tests/test_pdf_security.py` that failed CI checks.

Co-authored-by: anchapin <[email protected]>
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