GHSA-ghw3-5qvm-3mqc
CodeIgniter4 allows spoofing of IP address when using proxy
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | codeigniter4/framework | < 4.2.11 | 4.2.11 |
Details
As written in the advisory (Markdown source, shown as plain text).
### Impact
This vulnerability may allow attackers to spoof their IP address when your server is behind a reverse proxy.
### Patches
Upgrade to v4.2.11 or later, and configure `Config\App::$proxyIPs`.
### Workarounds
Do not use `$request->getIPAddress()`.
### References
- https://codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\HTTP\Request::getIPAddress
### 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)
References
External links from the advisory. They lead to third-party sites.
- https://github.com/codeigniter4/CodeIgniter4/security/advisories/GHSA-ghw3-5qvm-3mqc
- https://nvd.nist.gov/vuln/detail/CVE-2022-23556
- https://github.com/codeigniter4/CodeIgniter4/commit/5ca8c99b2db09a2a08a013836628028ddc984659
- https://codeigniter4.github.io/userguide/incoming/request.html#CodeIgniter\HTTP\Request::getIPAddress
- https://github.com/FriendsOfPHP/security-advisories/blob/master/codeigniter4/framework/CVE-2022-23556.yaml
- https://github.com/codeigniter4/CodeIgniter4