CVE-2019-1729

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These file overwrites by the attacker are accomplished at the root privilege level. The vulnerability occurs because there is no verification of user-input parameters and or digital-signature verification for image files when using a specific CLI command. An attacker could exploit this vulnerability by authenticating to the device and issuing a command at the CLI. Because an exploit could allow the attacker to overwrite any file on the disk, including system files, a denial of service (DoS) condition could occur. The attacker must have valid administrator credentials for the affected device to exploit this vulnerability."}, {"lang": "es", "value": "Una vulnerabilidad en la implementaci\u00f3n de la CLI de un comando espec\u00edfico utilizado para el mantenimiento de im\u00e1genes del programa NX-OS de Cisco podr\u00eda permitir que un atacante local identificado sobrescribiera cualquier archivo en el sistema de archivos, incluidos los archivos del sistema. Estos archivos sobrescritos por el atacante se realizan en el nivel de privilegio de tipo root. La vulnerabilidad se produce porque no hay comprobaci\u00f3n de los par\u00e1metros de entrada del usuario ni comprobaci\u00f3n de firma digital para los archivos de imagen cuando se usa un comando CLI espec\u00edfico. Un atacante podr\u00eda explotar esta vulnerabilidad al identificarse en el dispositivo y emitir un comando en la CLI. Debido a que una vulnerabilidad podr\u00eda permitir al atacante sobrescribir cualquier archivo en el disco, incluidos los archivos del sistema, podr\u00eda ocurrir una condici\u00f3n de Denegaci\u00f3n de Servicio (DoS). El atacante deber contar con credenciales de administrador v\u00e1lidas para que el dispositivo afectado ataque esta vulnerabilidad."}], "lastModified": "2024-11-21T04:37:11.700", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "92B576CF-5EAD-4830-A7B7-ACC434349691", "versionEndExcluding": "7.0\\(3\\)i4\\(9\\)"}, {"criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "EF06D835-FBE6-4866-B410-C2F66AEF68CD", "versionEndExcluding": "7.0\\(3\\)i7\\(4\\)", "versionStartIncluding": "7.0\\(3\\)i7"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:nexus_3000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "10FFC5E8-CC5A-4D31-A63A-19E72EC442AB"}, {"criteria": "cpe:2.3:h:cisco:nexus_3100:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "41C14CC9-C244-4B86-AEA6-C50BAD5DA9A6"}, {"criteria": "cpe:2.3:h:cisco:nexus_3100-z:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "D14D4B4E-120E-4607-A4F1-447C7BF3052E"}, {"criteria": "cpe:2.3:h:cisco:nexus_3100v:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "15702ACB-29F3-412D-8805-E107E0729E35"}, {"criteria": "cpe:2.3:h:cisco:nexus_3200:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "32A532C0-B0E3-484A-B356-88970E7D0248"}, {"criteria": "cpe:2.3:h:cisco:nexus_3400:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "43913A0E-50D5-47DD-94D8-DD3391633619"}, {"criteria": "cpe:2.3:h:cisco:nexus_3500:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "A8E1073F-D374-4311-8F12-AD8C72FAA293"}, {"criteria": "cpe:2.3:h:cisco:nexus_3524-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "10F80A72-AD54-4699-B8AE-82715F0B58E2"}, {"criteria": "cpe:2.3:h:cisco:nexus_3524-xl:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "9354B6A2-D7D6-442E-BF4C-FE8A336D9E94"}, {"criteria": "cpe:2.3:h:cisco:nexus_3548-x:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "74CB4002-7636-4382-B33E-FBA060A13C34"}, {"criteria": "cpe:2.3:h:cisco:nexus_3548-xl:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "10CEBF73-3EE0-459A-86C5-F8F6243FE27C"}, {"criteria": "cpe:2.3:h:cisco:nexus_9000:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "8EBEBA5B-5589-417B-BF3B-976083E9FE54"}, {"criteria": "cpe:2.3:h:cisco:nexus_9200:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "532CE4B0-A3C9-4613-AAAF-727817D06FB4"}, {"criteria": "cpe:2.3:h:cisco:nexus_9300:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "92E2CB2B-DA11-4CF7-9D57-3D4D48990DC0"}], "operator": "OR"}], "operator": "AND"}, {"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "96BFEE5D-EF9F-4C21-BC51-FBA71029A6A7", "versionEndExcluding": "7.0\\(3\\)f3\\(5\\)", "versionStartIncluding": "7.0\\(3\\)"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:nexus_36180yc-r:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "95D2C4C3-65CE-4612-A027-AF70CEFC3233"}, {"criteria": "cpe:2.3:h:cisco:nexus_3636c-r:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "57572E4A-78D5-4D1A-938B-F05F01759612"}, {"criteria": "cpe:2.3:h:cisco:nexus_9504:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "768BE390-5ED5-48A7-9E80-C4DE8BA979B1"}, {"criteria": "cpe:2.3:h:cisco:nexus_9508:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "DDC2F709-AFBE-48EA-A3A2-DA1134534FB6"}, {"criteria": "cpe:2.3:h:cisco:nexus_9516:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "7E02DC82-0D26-436F-BA64-73C958932B0A"}], "operator": "OR"}], "operator": "AND"}], "sourceIdentifier": "ykramarz@cisco.com"}