{"containers": {"cna": {"title": "Azure Active Directory Authentication Library Elevation of Privilege Vulnerability", "datePublic": "2019-08-14T07:00:00.000Z", "affected": [{"vendor": "Microsoft", "product": "ADAL.NET", "cpes": ["cpe:2.3:a:microsoft:active_directory_authentication_library:*:*:*:*:*:.net:*:*"], "platforms": ["Unknown"], "versions": [{"version": "5.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}, {"vendor": "Microsoft", "product": "Nuget 5.2.0", "cpes": ["cpe:2.3:a:microsoft:nuget:5.2.0:*:*:*:*:*:*:*"], "platforms": ["Unknown"], "versions": [{"version": "5.0.0", "lessThan": "publication", "versionType": "custom", "status": "affected"}]}], "descriptions": [{"value": "An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens. This vulnerability allows an authenticated attacker to perform actions in context of another user.\nThe authenticated attacker can exploit this vulneraiblity by accessing a service configured for On-Behalf-Of flow that assigns incorrect tokens.\nThis security update addresses the vulnerability by removing fallback cache look-up for On-Behalf-Of scenarios.", "lang": "en-US"}], "problemTypes": [{"descriptions": [{"description": "Elevation of Privilege", "lang": "en-US", "type": "Impact"}]}], "providerMetadata": {"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "shortName": "microsoft", "dateUpdated": "2024-05-29T16:51:14.142Z"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258"}]}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T18:13:29.539Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258"}]}]}, "cveMetadata": {"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8", "assignerShortName": "microsoft", "cveId": "CVE-2019-1258", "datePublished": "2019-08-14T20:55:06.000Z", "dateReserved": "2018-11-26T00:00:00.000Z", "dateUpdated": "2024-08-04T18:13:29.539Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:microsoft:active_directory_authentication_library:*:*:*:*:*:.net:*:*", "matchCriteriaId": "3094FAAA-AB14-4ECB-B2A2-CDB7AF403696", "versionEndExcluding": "5.2.0", "versionStartIncluding": "5.0.5", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.0:preview:*:*:*:.net:*:*", "matchCriteriaId": "A8C70165-98DA-46CC-956D-62700E50FC6E", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.1:preview:*:*:*:.net:*:*", "matchCriteriaId": "078F3AF8-10D2-4740-8A54-312099DD5D47", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.2:preview:*:*:*:.net:*:*", "matchCriteriaId": "5CFE2C8C-8308-420A-A63A-969234A2D4B8", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:active_directory_authentication_library:5.0.3:preview:*:*:*:.net:*:*", "matchCriteriaId": "8F65F882-D93D-49EC-B000-1FB93ECDB502", "vulnerable": true}, {"criteria": "cpe:2.3:a:microsoft:nuget:5.2.0:*:*:*:*:*:*:*", "matchCriteriaId": "DD6DF95D-42D1-4CEF-BAA6-D4458133083A", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "An elevation of privilege vulnerability exists in Azure Active Directory Authentication Library On-Behalf-Of flow, in the way the library caches tokens. This vulnerability allows an authenticated attacker to perform actions in context of another user.\nThe authenticated attacker can exploit this vulneraiblity by accessing a service configured for On-Behalf-Of flow that assigns incorrect tokens.\nThis security update addresses the vulnerability by removing fallback cache look-up for On-Behalf-Of scenarios."}, {"lang": "es", "value": "Existe una vulnerabilidad de elevaci\u00f3n de privilegios en Azure Active Directory Authentication Library del lado de la transmisi\u00f3n, en la manera en que la biblioteca almacena en cach\u00e9 los tokens, tambi\u00e9n se conoce como \"Azure Active Directory Authentication Library Elevation of Privilege Vulnerability\"."}], "id": "CVE-2019-1258", "lastModified": "2026-02-20T21:18:58.150", "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}], "cvssMetricV30": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.0"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2019-08-14T21:15:19.173", "references": [{"source": "secure@microsoft.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1258"}], "sourceIdentifier": "secure@microsoft.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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