fkie_cve-2020-10518
Vulnerability from fkie_nvd
Published
2020-08-27 22:15
Modified
2024-11-21 04:55
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration of the underlying parsers used by GitHub Pages were not sufficiently restricted and made it possible to execute commands 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 2.22 and was fixed in 2.21.6, 2.20.15, and 2.19.21. The underlying issues contributing to this vulnerability were identified both internally and through the GitHub Security Bug Bounty program.
References
product-cna@github.comhttps://enterprise.github.com/releases/2.19.21/notesRelease Notes, Vendor Advisory
product-cna@github.comhttps://enterprise.github.com/releases/2.20.15/notesRelease Notes, Vendor Advisory
product-cna@github.comhttps://enterprise.github.com/releases/2.21.6/notesRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://enterprise.github.com/releases/2.19.21/notesRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://enterprise.github.com/releases/2.20.15/notesRelease Notes, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://enterprise.github.com/releases/2.21.6/notesRelease Notes, Vendor Advisory
Impacted products
Vendor Product Version
github github *
github github *
github github *


To clipboard 

{
   configurations: [
      {
         nodes: [
            {
               cpeMatch: [
                  {
                     criteria: "cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*",
                     matchCriteriaId: "B069227C-199F-48D2-8A3A-04FAC5BAF966",
                     versionEndExcluding: "2.19.21",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*",
                     matchCriteriaId: "99A2F224-E3D3-4E27-B7ED-57E544A45A8C",
                     versionEndExcluding: "2.20.15",
                     versionStartIncluding: "2.20.0",
                     vulnerable: true,
                  },
                  {
                     criteria: "cpe:2.3:a:github:github:*:*:*:*:enterprise:*:*:*",
                     matchCriteriaId: "330B13CF-E0E2-40C1-9A9F-F90A0D6E5A3C",
                     versionEndExcluding: "2.21.6",
                     versionStartIncluding: "2.21.0",
                     vulnerable: true,
                  },
               ],
               negate: false,
               operator: "OR",
            },
         ],
      },
   ],
   cveTags: [],
   descriptions: [
      {
         lang: "en",
         value: "A remote code execution vulnerability was identified in GitHub Enterprise Server that could be exploited when building a GitHub Pages site. User-controlled configuration of the underlying parsers used by GitHub Pages were not sufficiently restricted and made it possible to execute commands 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 2.22 and was fixed in 2.21.6, 2.20.15, and 2.19.21. The underlying issues contributing to this vulnerability were identified both internally and through the GitHub Security Bug Bounty program.",
      },
      {
         lang: "es",
         value: "Se identificó una vulnerabilidad de ejecución de código remota en GitHub Enterprise Server que podría ser explotada al crear un sitio GitHub Pages. La configuración controlada por el usuario de los analizadores subyacentes usados por las páginas de GitHub no estaba lo suficientemente restringida y permitía ejecutar comandos en la instancia de GitHub Enterprise Server. Para explotar esta vulnerabilidad, un atacante necesitaría permiso para crear y construir un sitio GitHub Pages en la instancia de GitHub Enterprise Server. Esta vulnerabilidad afectó a todas las versiones de GitHub Enterprise Server anteriores a la 2.22 y se corrigió en las versiones 2.21.6, 2.20.15 y 2.19.21. Los problemas subyacentes que contribuyen a esta vulnerabilidad se identificaron tanto internamente como por medio del programa GitHub Security Bug Bounty",
      },
   ],
   id: "CVE-2020-10518",
   lastModified: "2024-11-21T04:55:31.370",
   metrics: {
      cvssMetricV2: [
         {
            acInsufInfo: false,
            baseSeverity: "MEDIUM",
            cvssData: {
               accessComplexity: "LOW",
               accessVector: "NETWORK",
               authentication: "SINGLE",
               availabilityImpact: "PARTIAL",
               baseScore: 6.5,
               confidentialityImpact: "PARTIAL",
               integrityImpact: "PARTIAL",
               vectorString: "AV:N/AC:L/Au:S/C:P/I:P/A:P",
               version: "2.0",
            },
            exploitabilityScore: 8,
            impactScore: 6.4,
            obtainAllPrivilege: false,
            obtainOtherPrivilege: false,
            obtainUserPrivilege: false,
            source: "nvd@nist.gov",
            type: "Primary",
            userInteractionRequired: false,
         },
      ],
      cvssMetricV31: [
         {
            cvssData: {
               attackComplexity: "LOW",
               attackVector: "NETWORK",
               availabilityImpact: "HIGH",
               baseScore: 8.8,
               baseSeverity: "HIGH",
               confidentialityImpact: "HIGH",
               integrityImpact: "HIGH",
               privilegesRequired: "LOW",
               scope: "UNCHANGED",
               userInteraction: "NONE",
               vectorString: "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
               version: "3.1",
            },
            exploitabilityScore: 2.8,
            impactScore: 5.9,
            source: "nvd@nist.gov",
            type: "Primary",
         },
      ],
   },
   published: "2020-08-27T22:15:09.833",
   references: [
      {
         source: "product-cna@github.com",
         tags: [
            "Release Notes",
            "Vendor Advisory",
         ],
         url: "https://enterprise.github.com/releases/2.19.21/notes",
      },
      {
         source: "product-cna@github.com",
         tags: [
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         url: "https://enterprise.github.com/releases/2.20.15/notes",
      },
      {
         source: "product-cna@github.com",
         tags: [
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      },
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         source: "af854a3a-2127-422b-91ae-364da2661108",
         tags: [
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            "Vendor Advisory",
         ],
         url: "https://enterprise.github.com/releases/2.21.6/notes",
      },
   ],
   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: "NVD-CWE-noinfo",
            },
         ],
         source: "nvd@nist.gov",
         type: "Primary",
      },
   ],
}


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