CVE-2023-46733
What it is
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. Starting in versions 5.4.21 and 6.2.7 and prior to versions 5.4.31 and 6.3.8, `SessionStrategyListener` does not migrate the session after every successful login. It does so only in case the logged in user changes by means of checking the user identifier. 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, which is not the case at the moment. As of versions 5.4.31 and 6.3.8, Symfony now checks the type of the token in addition to the user identifier before deciding whether the session id should be regenerated.
At a glance
- Exploitability
- Can be exploited over the network with a low-privilege account. High risk of data tampering.
- Exploit odds
- 0.7% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.7% in the next 30 days (EPSS).
- Severity: 6.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.7% · EPSS, next 30 days
- Weakness
- CWE-384
- Record status
- Modified
Affected
- Sensiolabs Symfony < 5.4.31
- Sensiolabs Symfony < 6.3.8
Attack profile CVSS 3.1 · 6.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2023-46733.md and follow it. Check whether this project is affected by CVE-2023-46733. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
- https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
- https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
- https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
- https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
- https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
References
- https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
- https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
- https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx
- https://github.com/symfony/symfony/commit/7467bd7e3f888b333102bc664b5e02ef1e7f88b9
- https://github.com/symfony/symfony/commit/dc356499d5ceb86f7cf2b4c7f032eca97061ed74
- https://github.com/symfony/symfony/security/advisories/GHSA-m2wj-r6g3-fxfx