GHSA-ghw3-5qvm-3mqc

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GHSA-ghw3-5qvm-3mqc

Summary: CodeIgniter4 allows spoofing of IP address when using proxy

Details: ### 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: 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