GHSA-7527-8855-9cf8

Incorrect header handling in mod-wsgi

Source: GitHub Advisory Database (reviewed) High CVE-2022-2255

Packages

Ecosystem	Package	Affected	Fixed in
PyPI	mod-wsgi	< 4.9.3	4.9.3

Details

As written in the advisory (Markdown source, shown as plain text).

A vulnerability was found in mod_wsgi. The X-Client-IP header is not removed from a request from an untrusted proxy, allowing an attacker to pass the X-Client-IP header to the target WSGI application because the condition to remove it is missing.

References

External links from the advisory. They lead to third-party sites.

https://nvd.nist.gov/vuln/detail/CVE-2022-2255 advisory
https://github.com/GrahamDumpleton/mod_wsgi/commit/af3c0c2736bc0b0b01fa0f0aad3c904b7fa9c751 web
https://github.com/GrahamDumpleton/mod_wsgi package
https://github.com/GrahamDumpleton/mod_wsgi/blob/4.9.2/src/server/mod_wsgi.c#L13940-L13941 web
https://github.com/GrahamDumpleton/mod_wsgi/blob/4.9.2/src/server/mod_wsgi.c#L14046-L14082 web
https://github.com/pypa/advisory-database/tree/main/vulns/mod-wsgi/PYSEC-2022-254.yaml web
https://lists.debian.org/debian-lts-announce/2022/09/msg00021.html web
https://modwsgi.readthedocs.io/en/latest/release-notes/version-4.9.3.html web