CVE-2020-3133

A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured filters on the device. The vulnerability is due to improper validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email message to a recipient protected by the ESA. A successful exploit could allow the attacker to bypass the configured content filters, which could allow malicious content to pass through the device.

A vulnerability in the email message scanning of Cisco AsyncOS Software for Cisco Email Security Appliance (ESA) could allow an unauthenticated, remote attacker to bypass configured filters on the device. The vulnerability is due to improper validation of incoming emails. An attacker could exploit this vulnerability by sending a crafted email message to a recipient protected by the ESA. A successful exploit could allow the attacker to bypass the configured content filters, which could allow malicious content to pass through the device.

Una vulnerabilidad en el escaneo de mensajes de correo electrónico de Cisco AsyncOS Software para Cisco Email Security Appliance (ESA), podría permitir a un atacante remoto no autenticado omitir los filtros configurados en el dispositivo. La vulnerabilidad es debido a una comprobación inapropiada de los correos electrónicos entrantes. Un atacante podría explotar esta vulnerabilidad mediante el envío de un mensaje de correo electrónico diseñado hacia un destinatario protegido por la ESA. Una explotación con éxito podría permitirle al atacante omitir los filtros de contenido configurados, lo que podría permitir que el contenido malicioso pase por medio del dispositivo