GHSA-94hm-8q65-rmxm
OmniAuth-SAML authentication bypass via incorrect XML canonicalization and DOM traversal
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| RubyGems | omniauth-saml | < 1.10.0 | 1.10.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
OmniAuth OmniAuth-SAML 1.9.0 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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2017-11430
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations
- https://github.com/omniauth/omniauth-saml
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/omniauth-saml/CVE-2017-11430.yml
- https://www.kb.cert.org/vuls/id/475445