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Advisories

Contao before 5.3.54, 5.7.17, and 6.0.6 Session Invalidation Failure on 2FA Change

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Severity
low
Date
Affecting

  • Contao >= 4.6.0, < 5.3.54

  • Contao >= 5.4.0-RC1, < 5.7.17

  • Contao >= 6.0.0-RC1, < 6.0.6

CWE
  • CWE-613 Insufficient Session Expiration
CVSS
2.1
CVSS V4 Vector
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Farhan Khan, Martin Auswöger
Description
Contao 4.6.0 before 5.3.54, 5.4.0-RC1 before 5.7.17, and 6.0.0-RC1 before 6.0.6 fails to invalidate existing user sessions when two-factor authentication is enabled or disabled. Because Contao\User::isEqualTo() and serialized session data omit two-factor state, attackers already holding a session keep it after the owner changes 2FA settings.

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