GHSA-m2wj-r6g3-fxfx
Symfony possible session fixation vulnerability
Quick fix
GHSA-m2wj-r6g3-fxfx — symfony/security-http: upgrade to the fixed version with the command below.
composer require symfony/security-http:^5.4.31Details
### Description
SessionStrategyListener does not always migrate the session after a successful login. It only migrate the session when the logged-in user identifier changes. In some use cases, the user identifier doesn't change between the verification phase and the successful login, while the token itself changes from one type (partially-authenticated) to another (fully-authenticated). When this happens, the session id should be regenerated to prevent possible session fixations.
### Resolution
Symfony now checks the type of the token in addition to the user identifier before deciding whether the session id should be regenerated.
The patch for this issue is available [here](https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74) for branch 5.4.
### Credits
We would like to thank Robert Meijers for reporting the issue and providing the fix.
Are you affected?
Enter the version of the package you're using.
Affected packages
5.4.21Fixed in: 5.4.31composer require symfony/security-http:^5.4.316.2.7Fixed in: 6.3.8composer require symfony/security-http:^6.3.85.4.21Fixed in: 5.4.31composer require symfony/symfony:^5.4.316.2.7Fixed in: 6.3.8composer require symfony/symfony:^6.3.8References
- https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2023-46733[ADVISORY]
- https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9[WEB]
- https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74[WEB]
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46733.yaml[WEB]
- https://github.com/symfony/symfony[PACKAGE]
- https://symfony.com/cve-2023-46733[WEB]