FKIE_CVE-2021-22867

Vulnerability from fkie_nvd - Published: 2021-07-14 21:15 - Updated: 2024-11-21 05:50
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Summary
A path traversal vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to read files on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.1.3 and was fixed in 3.1.3, 3.0.11, and 2.22.17. This vulnerability was reported via the GitHub Bug Bounty program.
References
product-cna@github.comhttps://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.17
product-cna@github.comhttps://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.11
product-cna@github.comhttps://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.3
af854a3a-2127-422b-91ae-364da2661108https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.17
af854a3a-2127-422b-91ae-364da2661108https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.11
af854a3a-2127-422b-91ae-364da2661108https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.3
Impacted products
Vendor Product Version
github enterprise_server *
github enterprise_server *
github enterprise_server *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "DABF955B-08EB-4F27-B075-87F2CCF9CCCE",
              "versionEndExcluding": "2.22.17",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E2FD9D73-4FBD-4598-88AC-722036E9ACCE",
              "versionEndExcluding": "3.0.11",
              "versionStartIncluding": "3.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A4E5EEC6-5506-435A-9EEE-65231F738DC2",
              "versionEndExcluding": "3.1.3",
              "versionStartIncluding": "3.1.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A path traversal vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration options used by GitHub Pages were not sufficiently restricted and made it possible to read files on the GitHub Enterprise Server instance. To exploit this vulnerability, an attacker would need permission to create and build a GitHub Pages site on the GitHub Enterprise Server instance. This vulnerability affected all versions of GitHub Enterprise Server prior to 3.1.3 and was fixed in 3.1.3, 3.0.11, and 2.22.17. This vulnerability was reported via the GitHub Bug Bounty program."
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad de salto de ruta en GitHub Enterprise Server que podr\u00eda ser explotado cuando se construye un sitio de GitHub Pages. Las opciones de configuraci\u00f3n controladas por el usuario utilizadas por GitHub Pages no estaban suficientemente restringidas y hac\u00edan posible leer archivos en la instancia de GitHub Enterprise Server. Para explotar esta vulnerabilidad, un atacante necesitar\u00eda permiso para crear y construir un sitio de GitHub Pages en la instancia de GitHub Enterprise Server. Esta vulnerabilidad afectaba a todas las versiones de GitHub Enterprise Server anteriores a 3.1.3 y fue corregida en las versiones 3.1.3, 3.0.11 y 2.22.17. Esta vulnerabilidad fue reportada por medio del programa GitHub Bug Bounty"
    }
  ],
  "id": "CVE-2021-22867",
  "lastModified": "2024-11-21T05:50:47.860",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "NONE",
          "baseScore": 4.0,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 2.9,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-07-14T21:15:08.017",
  "references": [
    {
      "source": "product-cna@github.com",
      "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.17"
    },
    {
      "source": "product-cna@github.com",
      "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.11"
    },
    {
      "source": "product-cna@github.com",
      "url": "https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.3"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.17"
    },
    {
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      "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.11"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://docs.github.com/en/enterprise-server%403.1/admin/release-notes#3.1.3"
    }
  ],
  "sourceIdentifier": "product-cna@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-77"
        }
      ],
      "source": "product-cna@github.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-22"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.