CVE-2020-3433

{"id": "CVE-2020-3433", "cveTags": [], "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.2, "accessVector": "LOCAL", "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C", "authentication": "NONE", "integrityImpact": "COMPLETE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "COMPLETE"}, "acInsufInfo": false, "impactScore": 10.0, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 3.9, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "psirt@cisco.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}]}, "published": "2020-08-17T18:15:12.947", "references": [{"url": "http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "psirt@cisco.com"}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW", "tags": ["Vendor Advisory"], "source": "psirt@cisco.com"}, {"url": "http://packetstormsecurity.com/files/159420/Cisco-AnyConnect-Privilege-Escalation.html", "tags": ["Exploit", "Third Party Advisory", "VDB Entry"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-anyconnect-dll-F26WwJW", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}, {"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-3433", "tags": ["US Government Resource"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "psirt@cisco.com", "description": [{"lang": "en", "value": "CWE-427"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-427"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the interprocess communication (IPC) channel of Cisco AnyConnect Secure Mobility Client for Windows could allow an authenticated, local attacker to perform a DLL hijacking attack. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system. The vulnerability is due to insufficient validation of resources that are loaded by the application at run time. An attacker could exploit this vulnerability by sending a crafted IPC message to the AnyConnect process. A successful exploit could allow the attacker to execute arbitrary code on the affected machine with SYSTEM privileges. To exploit this vulnerability, the attacker would need to have valid credentials on the Windows system."}, {"lang": "es", "value": "Una vulnerabilidad en el canal de comunicaci\u00f3n entre procesos (IPC) de Cisco AnyConnect Secure Mobility Client para Windows podr\u00eda permitir a un atacante local autenticado llevar a cabo un ataque de secuestro de DLL. Para explotar esta vulnerabilidad, el atacante deber\u00eda tener credenciales v\u00e1lidas en el sistema Windows. La vulnerabilidad es debido a una comprobaci\u00f3n insuficiente de los recursos que son cargados por la aplicaci\u00f3n en el tiempo de ejecuci\u00f3n. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de un mensaje IPC dise\u00f1ado al proceso AnyConnect. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante ejecutar c\u00f3digo arbitrario en la m\u00e1quina afectada con privilegios SYSTEM. Para explotar esta vulnerabilidad, el atacante podr\u00eda necesitar credenciales v\u00e1lidas en el sistema Windows."}], "lastModified": "2025-10-28T13:58:07.407", "cisaActionDue": "2022-11-14", "cisaExploitAdd": "2022-10-24", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:cisco:anyconnect_secure_mobility_client:*:*:*:*:*:windows:*:*", "vulnerable": true, "matchCriteriaId": "4B36BF8D-9AFC-49EF-B794-D4D1513D7F28", "versionEndExcluding": "4.9.00086"}], "operator": "OR"}]}], "sourceIdentifier": "psirt@cisco.com", "cisaRequiredAction": "Apply updates per vendor instructions.", "cisaVulnerabilityName": "Cisco AnyConnect Secure Mobility Client for Windows DLL Hijacking Vulnerability"}