CVE-2019-1809

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The vulnerability is due to improper verification of digital signatures for patch images. An attacker could exploit this vulnerability by crafting an unsigned software patch to bypass signature checks and loading it on an affected device. A successful exploit could allow the attacker to boot a malicious software patch image."}, {"lang": "es", "value": "Una vulnerabilidad en la funci\u00f3n Image Signature Verification del programa Cisco NX-OS podr\u00eda permitir que un atacante local autenticado con credenciales de administrador para instalar un parche de programa malicioso en un dispositivo afectado. La vulnerabilidad se debe a la verificaci\u00f3n incorrecta de las firmas digitales para las im\u00e1genes de parches. Un atacante podr\u00eda aprovechar esta vulnerabilidad si crea un parche de programa sin firmar para evitar las comprobaciones de firmas y cargarlo en un dispositivo afectado. Una explotaci\u00f3n exitosa podr\u00eda permitir al atacante arrancar una imagen de parche de programa malicioso."}], "lastModified": "2023-03-24T17:46:28.160", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "B38D0244-062F-45FC-AE05-BDC398E7242C", "versionEndExcluding": "8.1\\(1a\\)", "versionStartIncluding": "7.3"}, {"criteria": "cpe:2.3:o:cisco:nx-os:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4863FC5-6578-48DE-838D-E5D2EEFF27B1", "versionEndExcluding": "8.3\\(1\\)", "versionStartIncluding": "8.2"}], "operator": "OR"}, {"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:h:cisco:mds_9706:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "5182CB50-4D32-4835-B1A8-817D989F919F"}, {"criteria": "cpe:2.3:h:cisco:mds_9710:-:*:*:*:*:*:*:*", "vulnerable": false, "matchCriteriaId": "36B3B617-7554-4C36-9B41-19AA3BD2F6E9"}, {"criteria": 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