Vulnerability Monitor

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CVE-2025-25292

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 contain a patch for the issue.

Published

2025-03-12T21:15:42.177

Last Modified

2025-11-03T20:17:58.943

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 9.8 (CRITICAL)

Weaknesses

Type: Secondary
CWE-347
CWE-436

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	omniauth	omniauth_saml	< 1.10.6	Yes
Application	omniauth	omniauth_saml	< 2.1.3	Yes
Application	omniauth	omniauth_saml	< 2.2.3	Yes
Application	onelogin	ruby-saml	< 1.12.4	Yes
Application	onelogin	ruby-saml	< 1.18.0	Yes
Application	netapp	storagegrid	-	Yes

References

https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released Patch ([email protected])
https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials Exploit, Third Party Advisory ([email protected])
https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9 Patch ([email protected])
https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97 Patch ([email protected])
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 Release Notes ([email protected])
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 Release Notes ([email protected])
https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-754f-8gm6-c4r2 Vendor Advisory ([email protected])
https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv Vendor Advisory ([email protected])
https://portswigger.net/research/saml-roulette-the-hacker-always-wins Exploit, Third Party Advisory ([email protected])
https://securitylab.github.com/advisories/GHSL-2024-329_GHSL-2024-330_ruby-saml Third Party Advisory ([email protected])
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-20250314-0009/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)