CVE-2020-3220

{"id": "CVE-2020-3220", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.1, "accessVector": "NETWORK", "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "MEDIUM", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 8.6, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV30": [{"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.0", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.2}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 6.8, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 2.2}]}, "published": "2020-06-03T18:15:19.997", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-vpn-dos-edOmW28Z", "tags": ["Patch", "Vendor Advisory"], "source": "ykramarz@cisco.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-345"}]}, {"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-345"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the hardware crypto driver of Cisco IOS XE Software for Cisco 4300 Series Integrated Services Routers and Cisco Catalyst 9800-L Wireless Controllers could allow an unauthenticated, remote attacker to disconnect legitimate IPsec VPN sessions to an affected device. The vulnerability is due to insufficient verification of authenticity of received Encapsulating Security Payload (ESP) packets. An attacker could exploit this vulnerability by tampering with ESP cleartext values as a man-in-the-middle."}, {"lang": "es", "value": "Una vulnerabilidad en el controlador criptogr\u00e1fico de hardware de Cisco IOS XE Software para Cisco 4300 Series Integrated Services Routers y Cisco Catalyst 9800-L Wireless Controllers, podr\u00eda permitir a un atacante remoto no autenticado desconectar las sesiones leg\u00edtimas de VPN IPsec en un dispositivo afectado. La vulnerabilidad es debido a una verificaci\u00f3n insuficiente de la autenticidad de los paquetes de Encapsulating Security Payload (ESP) recibidos. Un atacante podr\u00eda explotar esta vulnerabilidad al alterar los valores de texto sin cifrar ESP como un ataque de tipo man-in-the-middle."}], "lastModified": "2020-06-10T23:45:32.260", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "77E8AF15-AB46-4EAB-8872-8C55E8601599"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "957318BE-55D4-4585-AA52-C813301D01C3"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.4.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F11B703-8A0F-47ED-AA70-951FF78B94A4"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "FE7B2557-821D-4E05-B5C3-67192573D97D"}, {"criteria": "cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "5EE6EC32-51E4-43A3-BFB9-A0D842D08E87"}, {"criteria": 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"OR"}]}], "sourceIdentifier": "ykramarz@cisco.com"}