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Advisories

phpMyFAQ before 4.1.7 2FA Brute-Force via Session-Scoped Throttle

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severity
high
date
Affecting

  • phpMyFAQ >= 0, < 4.1.7

CWE
  • CWE-307 Improper Restriction of Excessive Authentication Attempts
CVSS
9.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
Credit
arpitjain099
Description
phpMyFAQ before 4.1.7 contains a brute-force vulnerability in the two-factor authentication step where the failure counter is session-scoped and reset on each successful password re-authentication. Attackers with a valid password can bypass the five-attempt limit by obtaining a fresh session cookie and repeatedly re-authenticating to reset the counter, enabling unbounded TOTP code guessing.

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