🛡️ Sentinel: [MEDIUM] Fix DoS via bytes bypass in timeout validation#71
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- Updated timeout validation in `testping1.py` to check for `isinstance(timeout, (str, bytes))` instead of just `str` to prevent massive bytes objects from bypassing length checks and causing CPU exhaustion during `int()` conversion. - Updated `test_testping1.py` assertion strings and added explicit test case for byte payload DoS. Co-authored-by: ManupaKDU <95234271+ManupaKDU@users.noreply.github.com>
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🚨 Severity: MEDIUM
💡 Vulnerability: DoS (CPU exhaustion) via
int()parsing of un-capped massivebytespayloads. Whilestrlimits were checked, abytespayload could bypass this and cause O(N^2) parsing lag.🎯 Impact: Potential thread exhaustion or Denial of Service by an attacker feeding arbitrarily large bytes payloads into the timeout conversion step.
🔧 Fix: Added
bytesto the length-checkisinstanceconstraint, changing it to(str, bytes). Updated logging and added testing forbytespayload validation.✅ Verification: Ran test suite to verify tests pass and regressions avoided.
PR created automatically by Jules for task 1726633105317089464 started by @ManupaKDU