CVE-2022-20817

A vulnerability in Cisco Unified IP Phones could allow an unauthenticated, remote attacker to impersonate another user's phone if the Cisco Unified Communications Manager (CUCM) is in secure mode. This vulnerability is due to improper key generation during the manufacturing process that could result in duplicated manufactured keys installed on multiple devices. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on the secure communication between the phone and the CUCM. A successful exploit could allow the attacker to impersonate another user's phone. This vulnerability cannot be addressed with software updates. There is a workaround that addresses this vulnerability.

A vulnerability in Cisco Unified IP Phones could allow an unauthenticated, remote attacker to impersonate another user's phone if the Cisco Unified Communications Manager (CUCM) is in secure mode. This vulnerability is due to improper key generation during the manufacturing process that could result in duplicated manufactured keys installed on multiple devices. An attacker could exploit this vulnerability by performing a machine-in-the-middle attack on the secure communication between the phone and the CUCM. A successful exploit could allow the attacker to impersonate another user's phone. This vulnerability cannot be addressed with software updates. There is a workaround that addresses this vulnerability.

Una vulnerabilidad en los teléfonos IP de Cisco Unified podría permitir a un atacante remoto no autenticado hacerse pasar por el teléfono de otro usuario si Cisco Unified Communications Manager (CUCM) está en modo seguro. Esta vulnerabilidad es debido a la generación inapropiada de claves durante el proceso de fabricación que podría resultar en claves fabricadas duplicadas instaladas en varios dispositivos. Un atacante podría aprovechar esta vulnerabilidad al llevar a cabo un ataque de máquina en el medio en la comunicación segura entre el teléfono y el CUCM. Una explotación con éxito podría permitir al atacante hacerse pasar por el teléfono de otro usuario. Esta vulnerabilidad no puede abordarse con actualizaciones de software. Se presenta una mitigación que aborda esta vulnerabilidad