CVE-2020-3452

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The vulnerability is due to a lack of proper input validation of URLs in HTTP requests processed by an affected device. An attacker could exploit this vulnerability by sending a crafted HTTP request containing directory traversal character sequences to an affected device. A successful exploit could allow the attacker to view arbitrary files within the web services file system on the targeted device. The web services file system is enabled when the affected device is configured with either WebVPN or AnyConnect features. This vulnerability cannot be used to obtain access to ASA or FTD system files or underlying operating system (OS) files."}, {"lang": "es", "value": "Una vulnerabilidad en la interfaz de servicios web de Cisco Adaptive Security Appliance (ASA) Software y Cisco Firepower Threat Defense (FTD) Software, podr\u00eda permitir a un atacante remoto no autenticado conducir ataques de salto de directorio y leer archivos confidenciales en un sistema objetivo. La vulnerabilidad es debido a una falta de comprobaci\u00f3n de entrada apropiada de las URL en las peticiones HTTP procesadas por un dispositivo afectado. Un atacante podr\u00eda explotar esta vulnerabilidad mediante el env\u00edo de una petici\u00f3n HTTP dise\u00f1ada que contenga secuencias de caracteres salto de directorio en un dispositivo afectado. Una explotaci\u00f3n con \u00e9xito podr\u00eda permitir a un atacante visualizar archivos arbitrarios dentro del sistema de archivos de servicios web en el dispositivo objetivo. El sistema de archivos de los servicios web es habilitado cuando el dispositivo afectado es configurado con las funcionalidades WebVPN o AnyConnect. 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