CodeIgniter4 Potential Session Handlers Vulnerability
### Impact When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler is set to `DatabaseHandler`, `MemcachedHandler`, or `RedisHandler`, then if an attacker gets one session cookie (e.g., one for user pages), they may be able to access pages that require another session cookie (e.g., for admin pages). ### Patches Upgrade to version 4.2.11 or later. ### Workarounds - Use only one session cookie. ### References - https://codeigniter4.github.io/userguide/libraries/sessions.html#session-drivers ### For more information If you have any questions or comments about this advisory: * Open an issue in [codeigniter4/CodeIgniter4](https://github.com/codeigniter4/CodeIgniter4/issues) * Email us at [SECURITY.md](https://github.com/codeigniter4/CodeIgniter4/blob/develop/SECURITY.md)
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2022-46170US | critical9.8 | — | ||
CodeIgniter is a PHP full-stack web framework. When an application uses (1) multiple session cookies (e.g., one for user pages and one for admin pages) and (2) a session handler i… | ||||
references
External citations — patches, advisories, analysis.
- https://codeigniter4.github.io/userguide/libraries/sessions.html#session-driversWEB
- https://github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-46170.yamlWEB
- https://github.com/codeigniter4/CodeIgniter4PACKAGE
- https://github.com/codeigniter4/CodeIgniter4/commit/f9fb6574fbeb5a4aa63f7ea87296523e10db9328WEB
- https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-6cq5-8cj7-g558WEB
- https://nvd.nist.gov/vuln/detail/CVE-2022-46170ADVISORY
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