CVEs-PoC/2020/CVE-2020-15094.md

### [CVE-2020-15094](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15094)
![](https://img.shields.io/static/v1?label=Product&message=symfony&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=%7B%22CWE-212%22%3A%22Improper%20Removal%20of%20Sensitive%20Information%20Before%20Storage%20or%20Transfer%22%7D&color=brighgreen)

### Description

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.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/404notf0und/CVE-Flow
- https://github.com/Live-Hack-CVE/CVE-2020-15094