CVE-2019-1968

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.

A vulnerability in the NX-API feature of Cisco NX-OS Software could allow an unauthenticated, remote attacker to cause an NX-API system process to unexpectedly restart. The vulnerability is due to incorrect validation of the HTTP header of a request that is sent to the NX-API. An attacker could exploit this vulnerability by sending a crafted HTTP request to the NX-API on an affected device. A successful exploit could allow the attacker to cause a denial of service (DoS) condition in the NX-API service; however, the NX-OS device itself would still be available and passing network traffic. Note: The NX-API feature is disabled by default.

Una vulnerabilidad en la funcionalidad NX-API de Cisco NX-OS Software, podría permitir a un atacante remoto no autenticado causar que un proceso del sistema NX-API se reinicie inesperadamente. La vulnerabilidad es debido a una comprobación incorrecta del encabezado HTTP de una petición que se envía a NX-API. Un atacante podría explotar esta vulnerabilidad enviando una petición HTTP especialmente diseñada a NX-API en un dispositivo afectado. Una explotación con éxito podría permitir al atacante causar una condición de denegación de servicio (DoS) en el servicio NX-API; sin embargo, el dispositivo NX-OS en sí todavía estaría disponible y pasando el tráfico de red. Nota: La funcionalidad NX-API está deshabilitada por defecto.