FKIE_CVE-2025-25293

Vulnerability from fkie_nvd - Published: 2025-03-12 21:15 - Updated: 2025-11-03 20:17
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). 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-releasedPatch
security-advisories@github.comhttps://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentialsExploit, Third Party Advisory
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349aPatch
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1Patch
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4Release Notes
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0Release Notes
security-advisories@github.comhttps://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrqVendor Advisory
security-advisories@github.comhttps://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xvVendor Advisory
security-advisories@github.comhttps://securitylab.github.com/advisories/GHSL-2024-355_ruby-samlExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20250314-0008/Third Party Advisory
Impacted products
Vendor Product Version
omniauth omniauth_saml *
omniauth omniauth_saml *
omniauth omniauth_saml *
onelogin ruby-saml *
onelogin ruby-saml *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*",
              "matchCriteriaId": "AB57A4CB-E546-42D7-AB8D-D86E979C80C1",
              "versionEndExcluding": "1.10.6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*",
              "matchCriteriaId": "58E37D56-71A9-417D-B0DD-EBDC2EA3855F",
              "versionEndExcluding": "2.1.3",
              "versionStartIncluding": "2.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*",
              "matchCriteriaId": "9549FF35-D7A0-446A-87C8-552C8D89CD92",
              "versionEndExcluding": "2.2.3",
              "versionStartIncluding": "2.2.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "EB0F9A57-0F32-4ECC-97B4-1F87DD7D7FD6",
              "versionEndExcluding": "1.12.4",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "455E8699-D6C2-4BFF-B4FD-2329E0F1E910",
              "versionEndExcluding": "1.18.0",
              "versionStartIncluding": "1.13.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they\u0027re compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue."
    },
    {
      "lang": "es",
      "value": "ruby-saml proporciona inicio de sesi\u00f3n \u00fanico (SSO) con lenguaje de marcado para aserciones de seguridad (SAML) para Ruby. En versiones anteriores a la 1.12.4 y la 1.18.0, ruby-saml era susceptible a ataques de denegaci\u00f3n de servicio (DoS) remotos con respuestas SAML comprimidas. ruby-saml utiliza zlib para descomprimir las respuestas SAML en caso de que est\u00e9n comprimidas. Es posible omitir la comprobaci\u00f3n del tama\u00f1o del mensaje con una aserci\u00f3n comprimida, ya que el tama\u00f1o del mensaje se comprueba antes del inflado, no despu\u00e9s. Este problema puede provocar ataques de denegaci\u00f3n de servicio (DoS) remotos. Las versiones 1.12.4 y 1.18.0 solucionan el problema."
    }
  ],
  "id": "CVE-2025-25293",
  "lastModified": "2025-11-03T20:17:59.253",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "PROOF_OF_CONCEPT",
          "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:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/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": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security-advisories@github.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-03-12T21:15:42.363",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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    },
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    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      ],
      "url": "https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Release Notes"
      ],
      "url": "https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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      ],
      "url": "https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
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        "Third Party Advisory"
      ],
      "url": "https://securitylab.github.com/advisories/GHSL-2024-355_ruby-saml"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://lists.debian.org/debian-lts-announce/2025/04/msg00011.html"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://security.netapp.com/advisory/ntap-20250314-0008/"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}


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