Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-3gv2-29qc-v67m
Advisory ID github_osv/GHSA-3gv2-29qc-v67m
Aliases CVE-2022-24895
Summary Symfony vulnerable to Session Fixation of CSRF tokens Description ----------- When authenticating users Symfony by default regenerates the session ID upon login, but preserves the rest of session attributes. Because this does not clear CSRF tokens upon login, this might enables [same-site attackers](https://canitakeyoursubdomain.name/) to bypass the CSRF protection mechanism by performing an attack similar to a session-fixation. Resolution ---------- Symfony removes all CSRF tokens from the session on successful login. The patch for this issue is available [here](https://github.com/symfony/symfony/commit/5909d74ecee359ea4982fcf4331aaf2e489a1fd4) for branch 4.4. Credits ------- We would like to thank Marco Squarcina for reporting the issue and Nicolas Grekas for fixing it.
Status Published
Exploitability 0.5
Weighted Severity 5.7
Risk 2.9
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
CWE-384 Session Fixation
CWE-613 Insufficient Session Expiration
System Score Found at
cvssv3.1 6.3 https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-3gv2-29qc-v67m/GHSA-3gv2-29qc-v67m.json
generic_textual MODERATE
Reference id Reference type URL
https://github.com/symfony/security-bundle/commit/076fd2088ada33d760758d98ff07ddedbf567946
https://github.com/symfony/symfony
https://github.com/symfony/symfony/commit/5909d74ecee359ea4982fcf4331aaf2e489a1fd4
https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html
CVE-2022-24895 https://nvd.nist.gov/vuln/detail/CVE-2022-24895
CVE-2022-24895 https://symfony.com/cve-2022-24895
CVE-2022-24895.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/security-bundle/CVE-2022-24895.yaml
CVE-2022-24895.YAML https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2022-24895.yaml
GHSA-3gv2-29qc-v67m https://github.com/symfony/symfony/security/advisories/GHSA-3gv2-29qc-v67m
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/02/GHSA-3gv2-29qc-v67m/GHSA-3gv2-29qc-v67m.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2025-03-10T20:58:32Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2022/24xxx/CVE-2022-24895.json

Source Advisory: vulnrichment/CVE-2022-24895

View SSVC decision tree 
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]