CVE-2018-11406

high

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.

References

https://lists.fedoraproject.org/archives/list/[email protected]/message/G4XNBMFW33H47O5TZGA7JYCVLDBCXAJV/

https://lists.fedoraproject.org/archives/list/[email protected]/message/UBQK7JDXIELADIPGZIOUCZKMAJM5LSBW/

https://lists.fedoraproject.org/archives/list/[email protected]/message/WU5N2TZFNGXDGMXMPP7LZCWTFLENF6WH/

https://symfony.com/blog/cve-2018-11406-csrf-token-fixation

https://www.debian.org/security/2018/dsa-4262

Details

Source: MITRE

Published: 2018-06-13

Updated: 2019-03-29

Type: CWE-352

Risk Information

CVSS v2

Base Score: 6.8

Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3

Base Score: 8.8

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

Impact Score: 5.9

Exploitability Score: 2.8

Severity: HIGH