CVSS: 8.1EPSS: 0%CPEs: 1EXPL: 0CVE-2022-20773 – Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability
https://notcve.org/view.php?id=CVE-2022-20773
A vulnerability in the key-based SSH authentication mechanism of Cisco Umbrella Virtual Appliance (VA) could allow an unauthenticated, remote attacker to impersonate a VA. This vulnerability is due to the presence of a static SSH host key. An attacker could exploit this vulnerability by performing a man-in-the-middle attack on an SSH connection to the Umbrella VA. A successful exploit could allow the attacker to learn the administrator credentials, change configurations, or reload the VA. Note: SSH is not enabled by default on the Umbrella VA. • https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uva-static-key-6RQTRs4c • CWE-321: Use of Hard-coded Cryptographic Key CWE-798: Use of Hard-coded Credentials •
CVSS: 6.4EPSS: 0%CPEs: 1EXPL: 0CVE-2017-6679
https://notcve.org/view.php?id=CVE-2017-6679
The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented encrypted remote support tunnel (SSH) which auto initiated from the customer's appliance to Cisco's SSH Hubs in the Umbrella datacenters. These tunnels were primarily leveraged for remote support and allowed for authorized/authenticated personnel from the Cisco Umbrella team to access the appliance remotely and obtain full control without explicit customer approval. To address this vulnerability, the Umbrella Virtual Appliance version 2.1.0 now requires explicit customer approval before an SSH tunnel from the VA to the Cisco terminating server can be established. Cisco Umbrella Virtual Appliance en sus versiones 2.0.3 y anteriores contenían un túnel de soporte remoto cifrado sin documentar (SSH) que se iniciaba automáticamente desde la máquina del cliente a los hubs SSH de Cisco en los CPD de Umbrella. Estos túneles se utilizaban en principio para proporcionar soporte remoto y permitían al personal autorizado/autenticado del equipo de Cisco Umbrella para que accediesen a la máquina remotamente y obtuvieses el control total sin la aprobación explícita del cliente. • http://www.securityfocus.com/bid/101567 https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE https://support.umbrella.com/hc/en-us/articles/115004154423 https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15 https://www.info-sec.ca/advisories/Cisco-Umbrella.html •