HIGH7.7

GHSA-x2fr-v8wf-8wwv

Ruby-SAML Improper Authentication vulnerability

Quick fix

GHSA-x2fr-v8wf-8wwv — ruby-saml: upgrade to the fixed version with the command below.

bundle update ruby-saml

Details

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.

Are you affected?

Enter the version of the package you're using.

Affected packages

RubyGems/ruby-saml

Introduced in: 0Fixed in: 1.7.0

Fixbundle update ruby-saml

References

https://nvd.nist.gov/vuln/detail/CVE-2017-11428[ADVISORY]
https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations[WEB]
https://www.kb.cert.org/vuls/id/475445[WEB]