Use of Hard-coded Cryptographic Key in Cisco Umbrella Virtual Appliance - CVE-2022-20773
Published: April 21, 2022
Vulnerability identifier: #VU62464
CSH Severity: High
CVSS v4: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2022-20773
CWE-ID: CWE-321
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to impersonate the virtual appliance.
The vulnerability exists due to the presence of a static SSH host key. A remote attacker can perform a man-in-the-middle (MitM) attack on an SSH connection to the Umbrella VA.
Affected software
Cisco Umbrella Virtual Appliance
How to mitigate CVE-2022-20773
Install updates from vendor's website.
Cisco Umbrella Virtual Appliance - update to 3.3.2