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Advisories

Padloc 4.0.0 before 4.3.1 Email MFA Code Brute Force via retrieveMFAToken

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Severity
medium
Date
Affecting

  • padloc >= 4.0.0, < 4.3.1

CWE
  • CWE-307 Improper Restriction of Excessive Authentication Attempts
CVSS
6.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Zachariah Mithani (AploSec)
Description
Padloc 4.0.0 before 4.3.1 contains an authentication bypass vulnerability in the legacy retrieveMFAToken handler that never counts wrong email verification codes toward the attempt limit. Unauthenticated attackers knowing a victim's email can brute force the 6-digit code to obtain verification tokens usable in signup, login and account recovery flows.

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