fkie_cve-2020-26290
Vulnerability from fkie_nvd
Published
2020-12-28 20:15
Modified
2024-11-21 05:19
Summary
Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references).
References
security-advisories@github.comhttps://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8Patch, Third Party Advisory
security-advisories@github.comhttps://github.com/dexidp/dex/releases/tag/v2.27.0Third Party Advisory
security-advisories@github.comhttps://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5Third Party Advisory
security-advisories@github.comhttps://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.mdNot Applicable, Third Party Advisory
security-advisories@github.comhttps://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.mdNot Applicable, Third Party Advisory
security-advisories@github.comhttps://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.mdNot Applicable, Third Party Advisory
security-advisories@github.comhttps://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7Not Applicable, Third Party Advisory
security-advisories@github.comhttps://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/Not Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dexidp/dex/releases/tag/v2.27.0Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.mdNot Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.mdNot Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.mdNot Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7Not Applicable, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/Not Applicable, Third Party Advisory
Impacted products
Vendor Product Version
linuxfoundation dex *



{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:linuxfoundation:dex:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6DED3272-1D65-4A06-97D5-73FC7EE37516",
              "versionEndExcluding": "2.27.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Dex is a federated OpenID Connect provider written in Go. In Dex before version 2.27.0 there is a critical set of vulnerabilities which impacts users leveraging the SAML connector. The vulnerabilities enables potential signature bypass due to issues with XML encoding in the underlying Go library. The vulnerabilities have been addressed in version 2.27.0 by using the xml-roundtrip-validator from Mattermost (see related references)."
    },
    {
      "lang": "es",
      "value": "Dex es un proveedor federado de OpenID Connect escrito en Go.\u0026#xa0;En Dex versi\u00f3n anterior a 2.27.0, presenta un conjunto cr\u00edtico de vulnerabilidades que impacta a usuarios que aprovechan el conector SAML.\u0026#xa0;Las vulnerabilidades permiten una posible omisi\u00f3n de firmas debido a problemas con la codificaci\u00f3n XML en la biblioteca Go subyacente.\u0026#xa0;Las vulnerabilidades han sido abordadas en la versi\u00f3n 2.27.0, mediante el uso de xml-roundtrip-validator de Mattermost (consulte las referencias relacionadas)"
    }
  ],
  "id": "CVE-2020-26290",
  "lastModified": "2024-11-21T05:19:46.513",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "MEDIUM",
          "accessVector": "NETWORK",
          "authentication": "NONE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.8,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.6,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 9.3,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.8,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.6,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 6.0,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2020-12-28T20:15:12.493",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/releases/tag/v2.27.0"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/commit/324b1c886b407594196113a3dbddebe38eecd4e8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/releases/tag/v2.27.0"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://github.com/dexidp/dex/security/advisories/GHSA-m9hp-7r99-94h5"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-attributes.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-directives.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/mattermost/xml-roundtrip-validator/blob/master/advisories/unstable-elements.md"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://github.com/russellhaering/goxmldsig/security/advisories/GHSA-q547-gmf8-8jr7"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Not Applicable",
        "Third Party Advisory"
      ],
      "url": "https://mattermost.com/blog/coordinated-disclosure-go-xml-vulnerabilities/"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-347"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Primary"
    }
  ]
}


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