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Advisories

mayswind ezBookkeeping before 2.0.0 TOTP Replay Attack

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severity
high
date
Affecting

  • ezBookkeeping >= 0, < 2.0.0

CWE
  • CWE-294 Authentication Bypass by Capture-replay
CVSS
7.6
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
Waleed Hassan (GhostOverflow)
Description
mayswind ezBookkeeping before 2.0.0 fails to invalidate TOTP passcodes after use, allowing attackers to replay captured codes within the acceptance window. Attackers with stolen credentials can authenticate and reuse a captured passcode against multiple authorization attempts for approximately 90 seconds without detection.

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