Описание
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.
| Релиз | Статус | Примечание |
|---|---|---|
| devel | released | 6.4.2-5ubuntu4 |
| esm-apps/focal | released | 3.12.4-1ubuntu2+esm2 |
| esm-apps/jammy | released | 5.5.2-2ubuntu2+esm2 |
| focal | ignored | end of standard support, was needed |
| jammy | needed | |
| noble | released | 6.4.2-4ubuntu4.3 |
| oracular | released | 6.4.2-5ubuntu4 |
| plucky | released | 6.4.2-5ubuntu4 |
| upstream | released | 6.4.3 |
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Ссылки на источники
5.4 Medium
CVSS3
Связанные уязвимости
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.
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.
Puma is a Ruby/Rack web server built for parallelism. In affected vers ...
Puma's header normalization allows for client to clobber proxy set headers
Уязвимость HTTP-сервера для Ruby/Rack приложений Puma, позволяющая нарушителю выполнить произвольный код
5.4 Medium
CVSS3