CVE-2025-25291 (GCVE-0-2025-25291)
Vulnerability from cvelistv5
Published
2025-03-12 20:16
Modified
2025-11-03 19:44
Severity ?
9.3 (Critical) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
  • CWE-436 - Interpretation Conflict
Summary
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently; the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 fix the issue.
References
security-advisories@github.com https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released Patch
security-advisories@github.com https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials Exploit, Third Party Advisory
security-advisories@github.com https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9 Patch
security-advisories@github.com https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97 Patch
security-advisories@github.com https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 Release Notes
security-advisories@github.com https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 Release Notes
security-advisories@github.com https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-4vc4-m8qh-g8jm Vendor Advisory
security-advisories@github.com https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv Vendor Advisory
security-advisories@github.com https://portswigger.net/research/saml-roulette-the-hacker-always-wins Exploit, Third Party Advisory
security-advisories@github.com https://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html
af854a3a-2127-422b-91ae-364da2661108 https://news.ycombinator.com/item?id=43374519 Issue Tracking
af854a3a-2127-422b-91ae-364da2661108 https://security.netapp.com/advisory/ntap-20250314-0010/ Third Party Advisory
Impacted products
Vendor Product Version
SAML-Toolkits ruby-saml Version: < 1.12.4
Version: >= 1.13.0, < 1.18.0
 Create a notification for this product.
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      "cveMetadata": "{\"cveId\": \"CVE-2025-25291\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-12T19:07:07.030Z\", \"dateReserved\": \"2025-02-06T17:13:33.122Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2025-03-12T20:16:12.181Z\", \"assignerShortName\": \"GitHub_M\"}",
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}


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