Description
Puma is a Ruby/Rack web server built for parallelism. In affected versions clients could clobber values set by intermediate proxies (such as X-Forwarded-For) by providing a underscore version of the same header (X-Forwarded_For). Any users relying on proxy set variables is affected. v6.4.3/v5.6.9 now discards any headers using underscores if the non-underscore version also exists. Effectively, allowing the proxy defined headers to always win. Users are advised to upgrade. Nginx has a underscores_in_headers configuration variable to discard these headers at the proxy level as a mitigation. Any users that are implicitly trusting the proxy defined headers for security should immediately cease doing so until upgraded to the fixed versions.
INFO
Published Date :
2024-09-19T22:42:33.974Z
Last Modified :
2025-11-03T22:15:51.621Z
Source :
GitHub_M
AFFECTED PRODUCTS
The following products are affected by CVE-2024-45614 vulnerability.
| Vendors | Products |
|---|---|
| Puma |
|
REFERENCES
Here, you will find a curated list of external links that provide in-depth information to CVE-2024-45614.
