HighGHSA-ghw3-5qvm-3mqcBIT-codeigniter-2022-23556CVE-2022-23556

CodeIgniter4 allows spoofing of IP address when using proxy

Published 22 Dec 2022 · Updated 6 Dec 2023

Affected package

Affected
<4.2.11
Fixed in
4.2.11
Update to the fixed version for your release line, for example:composer require codeigniter4/framework:^4.2.11

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:

Is GHSA-ghw3-5qvm-3mqc in any of your client repos?

Checking one package by hand is fine. Checking it across forty client projects is not. NPMscan reads the lockfiles in every GitHub repo you pick, finds each project with an affected codeigniter4/framework, and gives you the command that fixes it.

References

Advisory data from OSV.dev (opens OSV.dev in a new tab), refreshed daily.