🔒 Fix Timing Attack Vulnerability in Google Sheets Webhook Authentication - #87
🔒 Fix Timing Attack Vulnerability in Google Sheets Webhook Authentication#87Sparkier wants to merge 1 commit into
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Use Node.js `crypto.timingSafeEqual` in `src/routes/api/webhooks/google-sheets/+server.ts` to perform timing-safe string comparison when verifying the `Authorization` header. This prevents timing attacks that could allow an attacker to guess the webhook secret character by character. Lengths are checked before the safe comparison to prevent TypeErrors when the provided header size differs from the expected secret. Co-authored-by: Sparkier <5690524+Sparkier@users.noreply.github.com>
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🎯 What: Fixed a timing attack vulnerability in the Google Sheets webhook endpoint (
src/routes/api/webhooks/google-sheets/+server.ts) where theAuthorizationheader was being checked using standard string equality.📊 Coverage: Verified by existing test suite. No new regressions introduced; tests pass 100%.
✨ Result: The webhook secret comparison now uses Node's
crypto.timingSafeEqualafter buffer length verification, thereby preventing timing attacks.PR created automatically by Jules for task 10949658533813507321 started by @Sparkier