CVE-2017-11430 : What You Need to Know
Learn about CVE-2017-11430, a vulnerability in OmniAuth OmnitAuth-SAML versions 1.9.0 and older, allowing attackers to manipulate SAML data without disrupting the cryptographic signature, potentially leading to authentication bypass.
This CVE involves a potential vulnerability in OmniAuth OmnitAuth-SAML 1.9.0 and older versions, allowing attackers to manipulate SAML data without disrupting the cryptographic signature, potentially leading to authentication bypass.
Understanding CVE-2017-11430
What is CVE-2017-11430?
CVE-2017-11430 highlights a vulnerability in OmniAuth OmnitAuth-SAML versions 1.9.0 and below, where XML DOM traversal and canonicalization APIs may be misused, enabling attackers to tamper with SAML data without invalidating the cryptographic signature.
The Impact of CVE-2017-11430
The vulnerability could permit attackers to bypass authentication to SAML service providers by manipulating SAML data without affecting the cryptographic signature.
Technical Details of CVE-2017-11430
Vulnerability Description
- Improper use of XML DOM traversal and canonicalization APIs in OmniAuth OmnitAuth-SAML versions 1.9.0 and earlier
Affected Systems and Versions
- Product: OmniAuth-SAML
- Vendor: OmniAuth
- Versions Affected: < 1.9.0
Exploitation Mechanism
- Attack Complexity: Low
- Attack Vector: Network
- Confidentiality Impact: High
- Integrity Impact: None
- Privileges Required: Low
- Scope: Changed
- User Interaction: None
Mitigation and Prevention
Immediate Steps to Take
- Upgrade OmniAuth OmnitAuth-SAML to version 1.9.0 or higher
- Monitor for any unauthorized access or unusual SAML data manipulation
Long-Term Security Practices
- Regularly review and update XML DOM traversal and canonicalization practices
- Implement strong authentication mechanisms and monitoring tools
Patching and Updates
- Apply security patches provided by OmniAuth for OmniAuth-SAML to address the vulnerability