CVE-2018-11406 Information

Description

An issue was discovered in the Security component in Symfony 2.7.x before 2.7.48 2.8.x before 2.8.41 3.3.x before 3.3.17 3.4.x before 3.4.11 and 4.0.x before 4.0.11. By default a user’s session is invalidated when the user is logged out. This behavior can be disabled through the invalidate_session option. In this case CSRF tokens were not erased during logout which allowed for CSRF token fixation.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Reference

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/ https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/ https://symfony.com/blog/cve-2018-11406-csrf-token-fixation https://www.debian.org/security/2018/dsa-4262

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8