CVE-2022-20773 HIGH

CVE-2022-20773: Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability

Vendor Cisco
Product Cisco Umbrella Insights Virtual Appliance
Weakness CWE-321
Published April 21, 2022
Last update November 6, 2024

CVSS base score

7.5/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 21, 2022 CVE published
November 6, 2024 Record updated