cve/2019/CVE-2019-3878.md

### [CVE-2019-3878](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-3878)
![](https://img.shields.io/static/v1?label=Product&message=mod_auth_mellon&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-305&color=brighgreen)

### Description

A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.

### POC

#### Reference
No PoCs from references.

#### Github
- https://github.com/ARPSyndicate/cvemon