CVE-2020-15094 – RCE in Symfony

https://notcve.org/view.php?id=CVE-2020-15094

In Symfony before versions 4.4.13 and 5.1.5, the CachingHttpClient class from the HttpClient Symfony component relies on the HttpCache class to handle requests. HttpCache uses internal headers like X-Body-Eval and X-Body-File to control the restoration of cached responses. The class was initially written with surrogate caching and ESI support in mind (all HTTP calls come from a trusted backend in that scenario). But when used by CachingHttpClient and if an attacker can control the response for a request being made by the CachingHttpClient, remote code execution is possible. This has been fixed in versions 4.4.13 and 5.1.5. • https://github.com/symfony/symfony/commit/d9910e0b33a2e0f993abff41c6fbc86951b66d78 https://github.com/symfony/symfony/security/advisories/GHSA-754h-5r27-7x3r https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/HNGUWOEETOFVH4PN3I3YO4QZHQ4AUKF3 https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VAQJXAKWPMWB7OL6QPG2ZSEQZYYPU5RC https://packagist.org/packages/symfony/http-kernel https://packagist.org/packages/symfony/symfony • CWE-212: Improper Removal of Sensitive Information Before Storage or Transfer •