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.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2020-09-02T17:35:15

Updated: 2024-08-04T13:08:22.072Z

Reserved: 2020-06-25T00:00:00

Link: CVE-2020-15094

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Modified

Published: 2020-09-02T18:15:11.187

Modified: 2023-11-07T03:17:24.570

Link: CVE-2020-15094

cve-icon Redhat

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