Advisory Weakness Curation

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.

Cross-Site Request Forgery (CSRF) in symfony/security-bundle.

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.

Duplicate This advisory duplicates another.