CVE-2021-22864

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This vulnerability affected all versions of GitHub Enterprise Server prior to 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-77", "description": "CWE-77: Command Injection - Generic", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-03-23T21:40:12.000Z", "orgId": "82327ea3-741d-41e4-88f8-2cf9e791e760", "shortName": "GitHub_P"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.17"}, {"tags": ["x_refsource_MISC"], "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.9"}, {"tags": ["x_refsource_MISC"], "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.3"}], "source": {"discovery": "EXTERNAL"}, "title": "Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "product-cna@github.com", "ID": "CVE-2021-22864", "STATE": "PUBLIC", "TITLE": "Unsafe configuration options in GitHub Pages leading to remote code execution on GitHub Enterprise Server"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "GitHub Enterprise Server", "version": {"version_data": [{"version_affected": "<", "version_name": "2.21", "version_value": "2.21.17"}, {"version_affected": "<", "version_name": "2.22", "version_value": "2.22.9"}, {"version_affected": "<", "version_name": "3.0", "version_value": "3.0.3"}]}}]}, "vendor_name": "GitHub"}]}}, "credit": [{"lang": "eng", "value": "yvvdwf"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "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 options used by GitHub Pages were not sufficiently restricted and made it possible to override environment variables leading to code execution 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 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-77: Command Injection - Generic"}]}]}, "references": {"reference_data": [{"name": "https://docs.github.com/en/enterprise-server@2.21/admin/release-notes#2.21.17", "refsource": "MISC", "url": "https://docs.github.com/en/enterprise-server@2.21/admin/release-notes#2.21.17"}, {"name": "https://docs.github.com/en/enterprise-server@2.22/admin/release-notes#2.22.9", "refsource": "MISC", "url": "https://docs.github.com/en/enterprise-server@2.22/admin/release-notes#2.22.9"}, {"name": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.3", "refsource": "MISC", "url": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.3"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:51:07.560Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.17"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.9"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.3"}]}]}, "cveMetadata": {"assignerOrgId": "82327ea3-741d-41e4-88f8-2cf9e791e760", "assignerShortName": "GitHub_P", "cveId": "CVE-2021-22864", "datePublished": "2021-03-23T21:40:12.000Z", "dateReserved": "2021-01-06T00:00:00.000Z", "dateUpdated": "2024-08-03T18:51:07.560Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "GitHub Enterprise Server", "vendor": "GitHub", "versions": [{"lessThan": "2.21.17", "status": "affected", "version": "2.21", "versionType": "custom"}, {"lessThan": "2.22.9", "status": "affected", "version": "2.22", "versionType": "custom"}, {"lessThan": "3.0.3", "status": "affected", "version": "3.0", "versionType": "custom"}]}], "source": "product-cna@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "1D306E32-D4C5-48C9-8408-2BD41D9F532D", "versionEndExcluding": "2.21.17", "versionStartIncluding": "2.21.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "EDB27F5B-D998-4C70-9087-EA3F4574B84D", "versionEndExcluding": "2.22.9", "versionStartIncluding": "2.22.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "F5B66596-7997-45C3-A56C-F1CEA2D1BAE8", "versionEndExcluding": "3.0.3", "versionStartIncluding": "3.0.0", "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 options used by GitHub Pages were not sufficiently restricted and made it possible to override environment variables leading to code execution 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 3.0.3 and was fixed in 3.0.3, 2.22.9, and 2.21.17. This vulnerability was reported via the GitHub Bug Bounty program."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad de ejecuci\u00f3n de c\u00f3digo remota en el servidor de GitHub Enterprise que podr\u00eda explotarse al crear un sitio de p\u00e1ginas de GitHub.&#xa0;Las opciones de configuraci\u00f3n controladas por el usuario que usaban las p\u00e1ginas de GitHub no estaban lo suficientemente restringidas y permit\u00edan anular las variables de entorno lo que conllevar\u00eda a una ejecuci\u00f3n de c\u00f3digo en la instancia del servidor de GitHub Enterprise.&#xa0;Para explotar esta vulnerabilidad, un atacante necesitar\u00eda permiso para crear y construir un sitio de p\u00e1ginas de GitHub en la instancia del servidor de GitHub Enterprise.&#xa0;Esta vulnerabilidad afect\u00f3 a todas las versiones de GitHub Enterprise Server anteriores a 3.0.3 y se corrigi\u00f3 en versiones 3.0.3, 2.22.9 y 2.21.17.&#xa0;Esta vulnerabilidad se report\u00f3 por medio del programa GitHub Bug Bounty"}], "id": "CVE-2021-22864", "lastModified": "2026-06-17T03:37:54.293", "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": 8.0, "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": "2021-03-23T22:15:12.423", "references": [{"source": "product-cna@github.com", "url": "https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.17"}, {"source": "product-cna@github.com", "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.9"}, {"source": "product-cna@github.com", "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://docs.github.com/en/enterprise-server%402.21/admin/release-notes#2.21.17"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.9"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.3"}], "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": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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