Описание
Symfony/Http-Kernel is the HTTP kernel component for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Headers that are not part of the "trusted_headers" allowed list are ignored and protect users from "Cache poisoning" attacks. In Symfony 5.2, maintainers added support for the X-Forwarded-Prefix headers, but this header was accessible in SubRequest, even if it was not part of the "trusted_headers" allowed list. An attacker could leverage this opportunity to forge requests containing a X-Forwarded-Prefix header, leading to a web cache poisoning issue. Versions 5.3.12 and later have a patch to ensure that the X-Forwarded-Prefix header is not forwarded to subrequests when it is not trusted.
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | not-affected | code not present |
| devel | not-affected | 5.3.12 |
| esm-apps/bionic | not-affected | code not present |
| esm-apps/focal | not-affected | code not present |
| esm-apps/jammy | not-affected | 5.3.12 |
| esm-apps/noble | not-affected | 5.3.12 |
| esm-apps/xenial | not-affected | code not present |
| focal | not-affected | code not present |
| hirsute | ignored | end of life |
| impish | ignored | end of life |
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Ссылки на источники
EPSS
4.3 Medium
CVSS2
6.5 Medium
CVSS3
Связанные уязвимости
Symfony/Http-Kernel is the HTTP kernel component for Symfony, a PHP framework for web and console applications and a set of reusable PHP components. Headers that are not part of the "trusted_headers" allowed list are ignored and protect users from "Cache poisoning" attacks. In Symfony 5.2, maintainers added support for the `X-Forwarded-Prefix` headers, but this header was accessible in SubRequest, even if it was not part of the "trusted_headers" allowed list. An attacker could leverage this opportunity to forge requests containing a `X-Forwarded-Prefix` header, leading to a web cache poisoning issue. Versions 5.3.12 and later have a patch to ensure that the `X-Forwarded-Prefix` header is not forwarded to subrequests when it is not trusted.
Symfony/Http-Kernel is the HTTP kernel component for Symfony, a PHP fr ...
EPSS
4.3 Medium
CVSS2
6.5 Medium
CVSS3