fkie_cve-2025-25291
Vulnerability from fkie_nvd
Published
2025-03-12 21:15
Modified
2025-03-20 14:15
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
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.comhttps://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released
security-advisories@github.comhttps://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-4vc4-m8qh-g8jm
security-advisories@github.comhttps://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv
security-advisories@github.comhttps://portswigger.net/research/saml-roulette-the-hacker-always-wins
af854a3a-2127-422b-91ae-364da2661108https://news.ycombinator.com/item?id=43374519
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250314-0010/
Impacted products
Vendor Product Version


To clipboard 

{
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "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.",
      },
      {
         lang: "es",
         value: "ruby-saml proporciona inicio de sesión único (SSO) con lenguaje de marcado para aserciones de seguridad (SAML) para Ruby. Se detectó una vulnerabilidad de omisión de autenticación en ruby-saml anterior a las versiones 1.12.4 y 1.18.0 debido a una diferencia en el analizador. ReXML y Nokogiri analizan XML de forma diferente; los analizadores pueden generar estructuras de documento completamente distintas a partir de la misma entrada XML. Esto permite a un atacante ejecutar un ataque de envoltura de firma. Este problema puede provocar la omisión de autenticación. Las versiones 1.12.4 y 1.18.0 solucionan el problema.",
      },
   ],
   id: "CVE-2025-25291",
   lastModified: "2025-03-20T14:15:24.050",
   metrics: {
      cvssMetricV40: [
         {
            cvssData: {
               Automatable: "NOT_DEFINED",
               Recovery: "NOT_DEFINED",
               Safety: "NOT_DEFINED",
               attackComplexity: "LOW",
               attackRequirements: "NONE",
               attackVector: "NETWORK",
               availabilityRequirement: "NOT_DEFINED",
               baseScore: 9.3,
               baseSeverity: "CRITICAL",
               confidentialityRequirement: "NOT_DEFINED",
               exploitMaturity: "NOT_DEFINED",
               integrityRequirement: "NOT_DEFINED",
               modifiedAttackComplexity: "NOT_DEFINED",
               modifiedAttackRequirements: "NOT_DEFINED",
               modifiedAttackVector: "NOT_DEFINED",
               modifiedPrivilegesRequired: "NOT_DEFINED",
               modifiedSubAvailabilityImpact: "NOT_DEFINED",
               modifiedSubConfidentialityImpact: "NOT_DEFINED",
               modifiedSubIntegrityImpact: "NOT_DEFINED",
               modifiedUserInteraction: "NOT_DEFINED",
               modifiedVulnAvailabilityImpact: "NOT_DEFINED",
               modifiedVulnConfidentialityImpact: "NOT_DEFINED",
               modifiedVulnIntegrityImpact: "NOT_DEFINED",
               privilegesRequired: "NONE",
               providerUrgency: "NOT_DEFINED",
               subAvailabilityImpact: "NONE",
               subConfidentialityImpact: "NONE",
               subIntegrityImpact: "NONE",
               userInteraction: "NONE",
               valueDensity: "NOT_DEFINED",
               vectorString: "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
               version: "4.0",
               vulnAvailabilityImpact: "NONE",
               vulnConfidentialityImpact: "HIGH",
               vulnIntegrityImpact: "HIGH",
               vulnerabilityResponseEffort: "NOT_DEFINED",
            },
            source: "security-advisories@github.com",
            type: "Secondary",
         },
      ],
   },
   published: "2025-03-12T21:15:42.000",
   references: [
      {
         source: "security-advisories@github.com",
         url: "https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/SAML-Toolkits/ruby-saml/commit/e76c5b36bac40aedbf1ba7ffaaf495be63328cd9",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/SAML-Toolkits/ruby-saml/commit/e9c1cdbd0f9afa467b585de279db0cbd0fb8ae97",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-4vc4-m8qh-g8jm",
      },
      {
         source: "security-advisories@github.com",
         url: "https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv",
      },
      {
         source: "security-advisories@github.com",
         url: "https://portswigger.net/research/saml-roulette-the-hacker-always-wins",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://news.ycombinator.com/item?id=43374519",
      },
      {
         source: "af854a3a-2127-422b-91ae-364da2661108",
         url: "https://security.netapp.com/advisory/ntap-20250314-0010/",
      },
   ],
   sourceIdentifier: "security-advisories@github.com",
   vulnStatus: "Awaiting Analysis",
   weaknesses: [
      {
         description: [
            {
               lang: "en",
               value: "CWE-347",
            },
            {
               lang: "en",
               value: "CWE-436",
            },
         ],
         source: "security-advisories@github.com",
         type: "Secondary",
      },
   ],
}


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