CVEs-PoC/2020/CVE-2020-12676.md

### [CVE-2020-12676](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-12676)
![](https://img.shields.io/static/v1?label=Product&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=n%2Fa&color=blue)
![](https://img.shields.io/static/v1?label=Vulnerability&message=n%2Fa&color=brighgreen)

### Description

FusionAuth fusionauth-samlv2 0.2.3 allows remote attackers to forge messages and bypass authentication via a SAML assertion that lacks a Signature element, aka a "Signature exclusion attack".

### POC

#### Reference
- http://packetstormsecurity.com/files/159454/FusionAuth-SAMLv2-0.2.3-Message-Forging.html
- http://seclists.org/fulldisclosure/2020/Oct/1

#### Github
- https://github.com/CompassSecurity/SAMLRaider
- https://github.com/FusionAuth/fusionauth-samlv2