cve/2017/CVE-2017-11427.md

### [CVE-2017-11427](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-11427)
![](https://img.shields.io/static/v1?label=Product&message=PythonSAML&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-287%3A%20Improper%20Authentication&color=brighgreen)

### Description

OneLogin PythonSAML 2.3.0 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://www.kb.cert.org/vuls/id/475445

#### Github
- https://github.com/ARPSyndicate/cvemon
- https://github.com/AngelaMarkosy/SAMLp2.7
- https://github.com/CHYbeta/CVE-2017-11427-DEMO
- https://github.com/JonathanRowe/python-saml-master
- https://github.com/SAML-Toolkits/python-saml
- https://github.com/SAML-Toolkits/python3-saml
- https://github.com/TimothyChheang/vulnerableSAMLapp
- https://github.com/angmarkosy/SAMLp2.7
- https://github.com/ansible/python3-saml
- https://github.com/gloliva/python3-saml-fork
- https://github.com/h-takimoto/samlsp-python
- https://github.com/kostetsocket/python3-saml
- https://github.com/onelogin/python-saml
- https://github.com/onelogin/python3-saml
- https://github.com/pexip/os-python3-saml
- https://github.com/poupyi/python-saml
- https://github.com/python-benchmark/VulnerableSAMLApp
- https://github.com/yogisec/VulnerableSAMLApp