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πŸ›‘οΈ Sentinel: [MEDIUM] Fix Log Injection (CRLF) in shared exception handler#89

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manupawickramasinghe merged 1 commit into
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sentinel-fix-log-injection-exception-handler-12518757630547795579
Jun 10, 2026
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πŸ›‘οΈ Sentinel: [MEDIUM] Fix Log Injection (CRLF) in shared exception handler#89
manupawickramasinghe merged 1 commit into
mainfrom
sentinel-fix-log-injection-exception-handler-12518757630547795579

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@ManupaKDU

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🚨 Severity: MEDIUM
πŸ’‘ Vulnerability: Log Injection (CRLF) via a shared exception handler.
🎯 Impact: An attacker could potentially inject arbitrary log entries or obscure attack traces if an un-sanitized exception (e.g., from a future code change inside the try block) is caught by the broad except handler and logged directly.
πŸ”§ Fix: Wrapped the exception string in repr() (repr(str(e))) before logging. This ensures all control characters (like \n and \r) are securely escaped, providing defense-in-depth against log spoofing.
βœ… Verification: Run python3 -m unittest test_testping1.py to ensure all 30 tests pass.

Note: No functionality was altered. The change strictly hardens the logging mechanism.


PR created automatically by Jules for task 12518757630547795579 started by @ManupaKDU

Replaces f-string exception logging `f"{e}"` with `f"{repr(str(e))}"` to
prevent Log Injection (CRLF) vulnerabilities. While the `ipaddress`
module natively escapes its exceptions, this broad exception handler
could catch un-sanitized exceptions from future `raise` statements,
allowing attackers to spoof log entries using embedded newlines.

Co-authored-by: ManupaKDU <95234271+ManupaKDU@users.noreply.github.com>
@google-labs-jules

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@manupawickramasinghe manupawickramasinghe merged commit d9d0c97 into main Jun 10, 2026
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2 participants