CVEs-PoC/2017/CVE-2017-11428.md

### [CVE-2017-11428](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11428)
![](https://img.shields.io/static/v1?label=Product&message=Ruby-SAML&color=blue)
![](https://img.shields.io/static/v1?label=Version&message=unspecified%20&color=brightgreen)
![](https://img.shields.io/static/v1?label=Vulnerability&message=CWE-287%3A%20Improper%20Authentication&color=brightgreen)

### Description

OneLogin Ruby-SAML 1.6.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

### POC

#### Reference
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations
- https://www.kb.cert.org/vuls/id/475445

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/cpkenn09y/Ruby-Saml-Modified-1.9.0
- https://github.com/pvijayfullstack/saml2.0_ruby
- https://github.com/pvijayfullstack/saml2_ruby
- https://github.com/stytchauth/samlshield