CVE-2017-11427 : Vulnerability Insights and Analysis
Learn about CVE-2017-11427, a vulnerability in OneLogin PythonSAML allowing attackers to manipulate SAML data, potentially bypassing authentication. Find mitigation steps here.
A potential vulnerability in OneLogin PythonSAML versions 2.3.0 and earlier allows attackers to manipulate SAML data, potentially bypassing authentication to SAML service providers.
Understanding CVE-2017-11427
This CVE involves a security issue in OneLogin PythonSAML that could lead to an authentication bypass.
What is CVE-2017-11427?
The vulnerability arises from improper use of XML DOM traversal and canonicalization APIs, enabling attackers to manipulate SAML data without invalidating the cryptographic signature.
The Impact of CVE-2017-11427
- CVSS Base Score: 7.7 (High Severity)
- Confidentiality Impact: High
- Attack Vector: Network
- Privileges Required: Low
- Scope: Changed
- User Interaction: None
Technical Details of CVE-2017-11427
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability allows attackers to manipulate SAML data without invalidating the cryptographic signature, potentially bypassing authentication.
Affected Systems and Versions
- Affected Product: PythonSAML
- Vendor: OneLogin
- Affected Versions: < 2.3.0 (unspecified version type)
Exploitation Mechanism
Attackers exploit the improper use of XML DOM traversal and canonicalization APIs to manipulate SAML data.
Mitigation and Prevention
Protect your systems from this vulnerability with the following steps:
Immediate Steps to Take
- Upgrade PythonSAML to version 2.3.0 or later.
- Monitor for any unauthorized access or unusual activities.
Long-Term Security Practices
- Regularly update and patch all software components.
- Implement strong authentication mechanisms and access controls.
Patching and Updates
- Apply security patches provided by OneLogin promptly to address this vulnerability.