CVE-2020-15094, GHSA-754h-5r27-7x3r
packagist/symfony/security
Improper Cross-boundary Removal of Sensitive Data
In Symfony, 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.
All versions starting from 4.4.0 before 4.4.13, all versions starting from 5.1.0 before 5.1.5
Upgrade to version 4.4.13 or above.
2020-09-14
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