CVE-2020-3421

{"id": "CVE-2020-3421", "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}], "cvssMetricV31": [{"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}, {"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}]}, "published": "2020-09-24T18:15:18.917", "references": [{"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-zbfw-94ckG4G", "tags": ["Vendor Advisory"], "source": "ykramarz@cisco.com"}], "vulnStatus": "Modified", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-754"}]}, {"type": "Secondary", "source": "ykramarz@cisco.com", "description": [{"lang": "en", "value": "CWE-754"}]}], "descriptions": [{"lang": "en", "value": "Multiple vulnerabilities in the Zone-Based Firewall feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause the device to reload or stop forwarding traffic through the firewall. The vulnerabilities are due to incomplete handling of Layer 4 packets through the device. An attacker could exploit these vulnerabilities by sending a certain sequence of traffic patterns through the device. A successful exploit could allow the attacker to cause the device to reload or stop forwarding traffic through the firewall, resulting in a denial of service. For more information about these vulnerabilities, see the Details section of this advisory."}, {"lang": "es", "value": "M\u00faltiples vulnerabilidades en la funcionalidad Zone-Based Firewall de Cisco IOS XE Software, podr\u00edan permitir a un atacante remoto no autenticado causar que el dispositivo se recargue o deje de reenviar tr\u00e1fico por medio del firewall. Las vulnerabilidades son debido al manejo incompleto de los paquetes de Capa 4 a trav\u00e9s del dispositivo. Un atacante podr\u00eda explotar estas vulnerabilidades mediante el env\u00edo de una determinada secuencia de patrones de tr\u00e1fico a trav\u00e9s del dispositivo. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir al atacante causar que el dispositivo se recargue o deje de reenviar tr\u00e1fico por medio del firewall, resultando en una denegaci\u00f3n de servicio. Para m\u00e1s informaci\u00f3n sobre estas vulnerabilidades, consulte la secci\u00f3n Detalles de este aviso."}], "lastModified": "2023-11-07T03:22:41.670", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:16.9.3:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E1FDA817-3A50-4B9E-8F4E-F613BDB3E9EE"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6C8AED7C-DDA3-4C29-BB95-6518C02C551A"}, {"criteria": "cpe:2.3:h:cisco:4321_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9421DBEF-AE42-4234-B49F-FCC34B804D7F"}, {"criteria": "cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5419CB9F-241F-4431-914F-2659BE27BEA5"}, {"criteria": "cpe:2.3:h:cisco:4351_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7DE02DBE-EAD5-4F37-8AB7-DF46A605A0E2"}, {"criteria": "cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5720462A-BE6B-4E84-A1A1-01E80BBA86AD"}, {"criteria": "cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E8B60888-6E2B-494E-AC65-83337661EE7D"}, {"criteria": "cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7594E307-AC80-41EC-AE94-07E664A7D701"}, {"criteria": "cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "09C913FF-63D5-43FB-8B39-598EF436BA5A"}, {"criteria": "cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "CD2794BD-C8CE-46EF-9857-1723FCF04E46"}, {"criteria": "cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "444F688F-79D0-4F22-B530-7BD520080B8F"}, {"criteria": "cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "55DD2272-10C2-43B9-9F13-6DC41DBE179B"}, {"criteria": "cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7428E0A8-1641-47FB-9CA9-34311DEF660D"}, {"criteria": "cpe:2.3:h:cisco:asr_1006-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE7401B7-094C-46EB-9869-2F0372E8B26B"}, {"criteria": "cpe:2.3:h:cisco:asr_1009-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8D8A72FD-D8B0-45B5-8FAD-6D8395BB218A"}, {"criteria": "cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "854D9594-FE84-4E7B-BA21-A3287F2DC302"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:ios_xe:17.2:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7FBAAAE4-E771-40BC-8B58-AC2AA2DCD784"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:1100_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "1952B64C-4AE0-4CCB-86C5-8D1FF6A12822"}, {"criteria": "cpe:2.3:h:cisco:1101_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5EB8A757-7888-4AC2-BE44-B89DB83C6C77"}, {"criteria": "cpe:2.3:h:cisco:1109_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "B80890A8-E3D3-462C-B125-9E9BC6525B02"}, {"criteria": "cpe:2.3:h:cisco:1111x_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "0547E196-5991-4C33-823A-342542E9DFD3"}, {"criteria": "cpe:2.3:h:cisco:111x_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "802CBFC1-8A2F-4BF7-A1D3-00622C33BE16"}, {"criteria": "cpe:2.3:h:cisco:1120_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7AFE0FC1-EEBC-42F0-88B0-4AF5B76DDD97"}, {"criteria": "cpe:2.3:h:cisco:1160_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D916389F-54DB-44CB-91DD-7CE3C7059350"}, {"criteria": "cpe:2.3:h:cisco:4221_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "6C8AED7C-DDA3-4C29-BB95-6518C02C551A"}, {"criteria": "cpe:2.3:h:cisco:4331_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5419CB9F-241F-4431-914F-2659BE27BEA5"}, {"criteria": "cpe:2.3:h:cisco:4431_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5720462A-BE6B-4E84-A1A1-01E80BBA86AD"}, {"criteria": "cpe:2.3:h:cisco:4461_integrated_services_router:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "E8B60888-6E2B-494E-AC65-83337661EE7D"}, {"criteria": "cpe:2.3:h:cisco:asr_1001-hx:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7594E307-AC80-41EC-AE94-07E664A7D701"}, {"criteria": "cpe:2.3:h:cisco:asr_1001-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "09C913FF-63D5-43FB-8B39-598EF436BA5A"}, {"criteria": "cpe:2.3:h:cisco:asr_1002-hx:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "CD2794BD-C8CE-46EF-9857-1723FCF04E46"}, {"criteria": "cpe:2.3:h:cisco:asr_1002-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "444F688F-79D0-4F22-B530-7BD520080B8F"}, {"criteria": "cpe:2.3:h:cisco:asr_1004:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "55DD2272-10C2-43B9-9F13-6DC41DBE179B"}, {"criteria": "cpe:2.3:h:cisco:asr_1006:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7428E0A8-1641-47FB-9CA9-34311DEF660D"}, {"criteria": "cpe:2.3:h:cisco:asr_1006-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DE7401B7-094C-46EB-9869-2F0372E8B26B"}, {"criteria": "cpe:2.3:h:cisco:asr_1009-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8D8A72FD-D8B0-45B5-8FAD-6D8395BB218A"}, {"criteria": "cpe:2.3:h:cisco:asr_1013:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "854D9594-FE84-4E7B-BA21-A3287F2DC302"}, {"criteria": "cpe:2.3:h:cisco:csr_1000v:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "BF8B0B49-2C99-410B-B011-5B821C5992FB"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ykramarz@cisco.com"}