CVE-2020-3994

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vCenter Server (6.7 before 6.7u3, 6.6 before 6.5u3k) contains a session hijack vulnerability in the vCenter Server Appliance Management Interface update function due to a lack of certificate validation. A malicious actor with network positioning between vCenter Server and an update repository may be able to perform a session hijack when the vCenter Server Appliance Management Interface is used to download vCenter updates."}, {"lang": "es", "value": "VMware vCenter Server (versiones 6.7 anteriores a 6.7u3, versiones 6.6 anteriores a 6.5u3k), contiene una vulnerabilidad de secuestro de sesi\u00f3n en la funci\u00f3n de actualizaci\u00f3n de la vCenter Server Appliance Management Interface debido a la falta de comprobaci\u00f3n del certificado. Un actor malicioso con posicionamiento de red entre vCenter Server y un repositorio de actualizaciones puede ser capaz de realizar un secuestro de sesi\u00f3n cuando la vCenter Server Appliance Management Interface es usado para descargar actualizaciones de vCenter"}], "id": "CVE-2020-3994", "lastModified": "2026-06-17T03:19:23.880", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "MEDIUM", "cvssData": {"accessComplexity": "MEDIUM", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "NONE", "baseScore": 5.8, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:N", "version": "2.0"}, "exploitabilityScore": 8.6, "impactScore": 4.9, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2020-10-20T17:15:12.967", "references": [{"source": "security@vmware.com", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.vmware.com/security/advisories/VMSA-2020-0023.html"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Vendor Advisory"], "url": "https://www.vmware.com/security/advisories/VMSA-2020-0023.html"}], "sourceIdentifier": "security@vmware.com", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-295"}], "source": "nvd@nist.gov", "type": "Primary"}]}

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