CVE-2021-42306

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42306", "name": "N/A", "tags": ["Patch", "Vendor Advisory"], "refsource": "N/A"}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "<p>An information disclosure vulnerability manifests when a user or an application uploads unprotected private key data as part of an authentication certificate <a href=\"https://docs.microsoft.com/en-us/graph/api/resources/keycredential?view=graph-rest-1.0\">keyCredential</a>? on an Azure AD <a href=\"https://docs.microsoft.com/en-us/azure/active-directory/develop/app-objects-and-service-principals\">Application or Service Principal</a> (which is not recommended). This vulnerability allows a user or service in the tenant with application read access to read the private key data that was added to the application.</p>\n<p>Azure AD?addressed this vulnerability by preventing disclosure of any private key?values added?to the application.</p>\n<p>Microsoft has identified services that could manifest this vulnerability, and steps that customers should take to be protected. Refer to the FAQ section for more information.</p>\n<p>For more details on this issue, please refer to the <a href=\"https://aka.ms/CVE-2021-42306-AAD\">MSRC Blog Entry</a>.</p>\n"}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-522"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2021-42306", "ASSIGNER": "secure@microsoft.com"}}, "impact": {"baseMetricV2": {"cvssV2": {"version": "2.0", "baseScore": 4.0, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:S/C:P/I:N/A:N", "authentication": "SINGLE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "NONE", "confidentialityImpact": "PARTIAL"}, "severity": "MEDIUM", "acInsufInfo": false, "impactScore": 2.9, "obtainAllPrivilege": false, "exploitabilityScore": 8.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}, "baseMetricV3": {"cvssV3": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.2, "exploitabilityScore": 2.8}}, "publishedDate": "2021-11-24T01:15Z", "configurations": {"nodes": [{"children": [], "operator": "OR", "cpe_match": [{"cpe23Uri": "cpe:2.3:a:microsoft:azure_migrate:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2021-11-02"}, {"cpe23Uri": "cpe:2.3:a:microsoft:azure_active_site_recovery:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2021-11-01"}, {"cpe23Uri": "cpe:2.3:a:microsoft:azure_automation:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2021-10-15"}, {"cpe23Uri": "cpe:2.3:a:microsoft:azure_active_directory:*:*:*:*:*:*:*:*", "cpe_name": [], "vulnerable": true, "versionEndExcluding": "2021-10-30"}]}], "CVE_data_version": "4.0"}, "lastModifiedDate": "2023-12-28T16:15Z"}