{ "id": "CVE-2021-31209", "sourceIdentifier": "secure@microsoft.com", "published": "2021-05-11T19:15:10.467", "lastModified": "2022-04-29T16:17:44.533", "vulnStatus": "Analyzed", "descriptions": [ { "lang": "en", "value": "Microsoft Exchange Server Spoofing Vulnerability" }, { "lang": "es", "value": "Una vulnerabilidad de Suplantaci\u00f3n de Identidad de Microsoft Exchange Server" } ], "metrics": { "cvssMetricV31": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH" }, "exploitabilityScore": 2.8, "impactScore": 5.2 } ], "cvssMetricV2": [ { "source": "nvd@nist.gov", "type": "Primary", "cvssData": { "version": "2.0", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "accessVector": "NETWORK", "accessComplexity": "MEDIUM", "authentication": "NONE", "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "availabilityImpact": "NONE", "baseScore": 5.8 }, "baseSeverity": "MEDIUM", "exploitabilityScore": 8.6, "impactScore": 4.9, "acInsufInfo": false, "obtainAllPrivilege": false, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": true } ] }, "weaknesses": [ { "source": "nvd@nist.gov", "type": "Primary", "description": [ { "lang": "en", "value": "NVD-CWE-noinfo" } ] } ], "configurations": [ { "nodes": [ { "operator": "OR", "negate": false, "cpeMatch": [ { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*", "matchCriteriaId": "DA166F2A-D83B-4D50-AD0B-668D813E0585" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*", "matchCriteriaId": "28FCA0E8-7D27-4746-9731-91B834CA3E64" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*", "matchCriteriaId": "19C1EE0C-B8DD-4B91-BE4B-1C42D72FB718" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*", "matchCriteriaId": "44ECF39A-1DE1-4870-A494-06A53494338D" }, { "vulnerable": true, "criteria": "cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*", "matchCriteriaId": "71CDF29B-116B-4DE2-AFD0-B62477FF0AEB" } ] } ] } ], "references": [ { "url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31209", "source": "secure@microsoft.com", "tags": [ "Patch", "Vendor Advisory" ] }, { "url": "https://www.zerodayinitiative.com/advisories/ZDI-21-615/", "source": "secure@microsoft.com", "tags": [ "Third Party Advisory", "VDB Entry" ] } ] }