Authentication mechanism absence or evasion In symfony

Description

Symfony has an Authentication Bypass via RememberMe

Description

When consuming a persisted remember-me cookie, Symfony does not check if the username persisted in the database matches the username attached with the cookie, leading to authentication bypass.

Resolution

The PersistentRememberMeHandler class now ensures the submitted username is the cookie owner.

The patch for this issue is available here for branch 5.4.

Credits

We would like to thank Moritz Rauch - Pentryx AG for reporting the issue and Jérémy Derussé for providing the fix.

Mitigation

Update Impact

Minimal update. May introduce new vulnerabilities or breaking changes.

Ecosystem
Package
Affected version
Patched versions