CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
42.1%
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.
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 for branch 5.4.
We would like to thank Robert Meijers for reporting the issue and providing the fix.
github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2023-46733.yaml
github.com/symfony/symfony
github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
nvd.nist.gov/vuln/detail/CVE-2023-46733
symfony.com/cve-2023-46733
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
AI Score
Confidence
Low
EPSS
Percentile
42.1%