CVE-2021-22866

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All permissions being granted would properly be shown during the first authorization, but in certain circumstances, if the user revisits the authorization flow after the GitHub App has configured additional user-level permissions, those additional permissions may not be shown, leading to more permissions being granted than the user potentially intended. This vulnerability affected GitHub Enterprise Server 3.0.x prior to 3.0.7 and 2.22.x prior to 2.22.13. It was fixed in versions 3.0.7 and 2.22.13. This vulnerability was reported via the GitHub Bug Bounty program."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-451", "description": "CWE-451: User Interface (UI) Misrepresentation of Critical Information", "lang": "en", "type": "CWE"}]}], "providerMetadata": {"dateUpdated": "2021-05-14T21:10:12.000Z", "orgId": "82327ea3-741d-41e4-88f8-2cf9e791e760", "shortName": "GitHub_P"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.7"}, {"tags": ["x_refsource_MISC"], "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.13"}], "source": {"discovery": "EXTERNAL"}, "title": "UI misrepresentation of granted permissions in GitHub Enterprise Server leading to unauthorized access to user resources", "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "product-cna@github.com", "ID": "CVE-2021-22866", "STATE": "PUBLIC", "TITLE": "UI misrepresentation of granted permissions in GitHub Enterprise Server leading to unauthorized access to user resources"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "GitHub Enterprise Server", "version": {"version_data": [{"version_affected": "<", "version_name": "3.0", "version_value": "3.0.7"}, {"version_affected": "<", "version_name": "2.22", "version_value": "2.22.13"}]}}]}, "vendor_name": "GitHub"}]}}, "credit": [{"lang": "eng", "value": "Vaibhav Singh (vaib25vicky)"}], "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "A UI misrepresentation vulnerability was identified in GitHub Enterprise Server that allowed more permissions to be granted during a GitHub App's user-authorization web flow than was displayed to the user during approval. To exploit this vulnerability, an attacker would need to create a GitHub App on the instance and have a user authorize the application through the web authentication flow. All permissions being granted would properly be shown during the first authorization, but in certain circumstances, if the user revisits the authorization flow after the GitHub App has configured additional user-level permissions, those additional permissions may not be shown, leading to more permissions being granted than the user potentially intended. This vulnerability affected GitHub Enterprise Server 3.0.x prior to 3.0.7 and 2.22.x prior to 2.22.13. It was fixed in versions 3.0.7 and 2.22.13. This vulnerability was reported via the GitHub Bug Bounty program."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "CWE-451: User Interface (UI) Misrepresentation of Critical Information"}]}]}, "references": {"reference_data": [{"name": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.7", "refsource": "MISC", "url": "https://docs.github.com/en/enterprise-server@3.0/admin/release-notes#3.0.7"}, {"name": "https://docs.github.com/en/enterprise-server@2.22/admin/release-notes#2.22.13", "refsource": "MISC", "url": "https://docs.github.com/en/enterprise-server@2.22/admin/release-notes#2.22.13"}]}, "source": {"discovery": "EXTERNAL"}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T18:51:07.627Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.7"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.13"}]}]}, "cveMetadata": {"assignerOrgId": "82327ea3-741d-41e4-88f8-2cf9e791e760", "assignerShortName": "GitHub_P", "cveId": "CVE-2021-22866", "datePublished": "2021-05-14T21:10:12.000Z", "dateReserved": "2021-01-06T00:00:00.000Z", "dateUpdated": "2024-08-03T18:51:07.627Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"affected": [{"affectedData": [{"product": "GitHub Enterprise Server", "vendor": "GitHub", "versions": [{"lessThan": "3.0.7", "status": "affected", "version": "3.0", "versionType": "custom"}, {"lessThan": "2.22.13", "status": "affected", "version": "2.22", "versionType": "custom"}]}], "source": "product-cna@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "3D74B8B1-2368-4287-A3FA-1F1795D96CA6", "versionEndExcluding": "2.22.13", "versionStartIncluding": "2.20.0", "vulnerable": true}, {"criteria": "cpe:2.3:a:github:enterprise_server:*:*:*:*:*:*:*:*", "matchCriteriaId": "5380547D-A963-4E9D-8D0D-A2FCD42C89F2", "versionEndExcluding": "3.0.7", "versionStartIncluding": "3.0.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "A UI misrepresentation vulnerability was identified in GitHub Enterprise Server that allowed more permissions to be granted during a GitHub App's user-authorization web flow than was displayed to the user during approval. To exploit this vulnerability, an attacker would need to create a GitHub App on the instance and have a user authorize the application through the web authentication flow. All permissions being granted would properly be shown during the first authorization, but in certain circumstances, if the user revisits the authorization flow after the GitHub App has configured additional user-level permissions, those additional permissions may not be shown, leading to more permissions being granted than the user potentially intended. This vulnerability affected GitHub Enterprise Server 3.0.x prior to 3.0.7 and 2.22.x prior to 2.22.13. It was fixed in versions 3.0.7 and 2.22.13. This vulnerability was reported via the GitHub Bug Bounty program."}, {"lang": "es", "value": "Se identific\u00f3 una vulnerabilidad de tergiversaci\u00f3n de la Interfaz de Usuario en el servidor de GitHub Enterprise que permit\u00eda que m\u00e1s permisos sean otorgados durante el flujo web de autorizaci\u00f3n de usuario de una aplicaci\u00f3n de GitHub de los que se mostraban al usuario durante la aprobaci\u00f3n.&#xa0;Para explotar esta vulnerabilidad, un atacante necesitar\u00eda crear una aplicaci\u00f3n GitHub en una instancia y tener a un usuario autorizado la aplicaci\u00f3n por medio del flujo de autenticaci\u00f3n web.&#xa0;Todos los permisos otorgados se mostrar\u00edan apropiadamente durante la primera autorizaci\u00f3n, pero en determinadas circunstancias, si el usuario vuelve a visitar el flujo de autorizaci\u00f3n despu\u00e9s de que la aplicaci\u00f3n GitHub haya configurado permisos adicionales a nivel de usuario, es posible que esos permisos adicionales no sean mostrados, conllevando a que sean mostrados m\u00e1s permisos. concedido de lo que el usuario potencialmente pretend\u00eda.&#xa0;Esta vulnerabilidad afect\u00f3 a GitHub Enterprise Server versiones 3.0.x anteriores a 3.0.7 y versiones 2.22.xanteriores a 2.22.13.&#xa0;Fue corregido en versiones 3.0.7 y 2.22.13.&#xa0;Esta vulnerabilidad fue reportada por medio del programa GitHub Bug Bounty"}], "id": "CVE-2021-22866", "lastModified": "2026-06-17T03:37:54.540", "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": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "REQUIRED", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-05-14T21:15:07.407", "references": [{"source": "product-cna@github.com", "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.13"}, {"source": "product-cna@github.com", "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.7"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://docs.github.com/en/enterprise-server%402.22/admin/release-notes#2.22.13"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "url": "https://docs.github.com/en/enterprise-server%403.0/admin/release-notes#3.0.7"}], "sourceIdentifier": "product-cna@github.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-451"}], "source": "product-cna@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "CWE-1021"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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