CVE-2021-34698

{"id": "CVE-2021-34698", "metrics": {"cvssMetricV2": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"version": "2.0", "baseScore": 7.8, "accessVector": "NETWORK", "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:C", "authentication": "NONE", "integrityImpact": "NONE", "accessComplexity": "LOW", "availabilityImpact": "COMPLETE", "confidentialityImpact": "NONE"}, "acInsufInfo": false, "impactScore": 6.9, "baseSeverity": "HIGH", "obtainAllPrivilege": false, "exploitabilityScore": 10.0, "obtainUserPrivilege": false, "obtainOtherPrivilege": false, "userInteractionRequired": false}], "cvssMetricV31": [{"type": "Secondary", "source": "ykramarz@cisco.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.6, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 4.0, "exploitabilityScore": 3.9}, {"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2021-10-06T20:15:08.490", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-dos-fmHdKswk", "tags": ["Vendor Advisory"], "source": "ykramarz@cisco.com"}, {"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-wsa-dos-fmHdKswk", "tags": ["Vendor Advisory"], "source": "af854a3a-2127-422b-91ae-364da2661108"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-401"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-401"}]}], "descriptions": [{"lang": "en", "value": "A vulnerability in the proxy service of Cisco AsyncOS for Cisco Web Security Appliance (WSA) could allow an unauthenticated, remote attacker to exhaust system memory and cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management in the proxy service of an affected device. An attacker could exploit this vulnerability by establishing a large number of HTTPS connections to the affected device. A successful exploit could allow the attacker to cause the system to stop processing new connections, which could result in a DoS condition. Note: Manual intervention may be required to recover from this situation."}, {"lang": "es", "value": "Una vulnerabilidad en el servicio proxy de Cisco AsyncOS para Cisco Web Security Appliance (WSA) podr\u00eda permitir a un atacante remoto no autenticado agotar la memoria del sistema y causar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado. Esta vulnerabilidad es debido a una administraci\u00f3n inapropiada de la memoria en el servicio proxy de un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad al establecer un gran n\u00famero de conexiones HTTPS al dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el sistema deje de procesar nuevas conexiones, lo que podr\u00eda resultar en una condici\u00f3n de DoS. Nota: Puede ser necesaria una intervenci\u00f3n manual para recuperarse de esta situaci\u00f3n"}], "lastModified": "2024-11-21T06:10:58.427", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "706A904F-2F7D-41E2-AA14-4A6F2E089507", "versionEndExcluding": "12.0.3-005", "versionStartIncluding": "12.0"}, {"criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D31D5B5B-F0AC-4F6F-82CC-59F2256C94EB", "versionEndExcluding": "12.5.2-007", "versionStartIncluding": "12.5"}, {"criteria": "cpe:2.3:o:cisco:asyncos:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "DF9EB09B-AF00-487B-9AB3-5ECB2E700260", "versionEndExcluding": "14.0.1-014", "versionStartIncluding": "14.0"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:web_security_appliance_s170:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E401F29A-026F-4097-B513-47911CB3AA09"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s190:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "AA3B097B-F689-4886-A0C6-B71ECAD783CF"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s380:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "23C3AECC-9270-42B5-A36E-208AA0B48D93"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s390:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5290B9CF-CF7D-4762-B5EE-5DAEA03C6409"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s680:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BE85462C-079B-4488-AB0E-989D41EB7AFD"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s690:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "48A8E5E8-8361-4BC8-BFA9-CAE4745A9C48"}, {"criteria": "cpe:2.3:h:cisco:web_security_appliance_s690x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "FBEAFE16-BD4F-4538-9A06-173FB678DB8B"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ykramarz@cisco.com"}