CVE-2020-15094

Summary

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.

Affected Software

VendorProductVersion RangeStatus
symfonysymfony>= 4.4.0, < 4.4.13affected
symfonysymfony>= 5.0.0, < 5.1.5affected

Weaknesses

  • CWE-212: {"CWE-212":"Improper Removal of Sensitive Information Before Storage or Transfer"}

ADP Enrichment

CVE Program Container

Additional References

References