Use of Hard-coded Cryptographic Key in Cisco Umbrella Virtual Appliance - CVE-2022-20773

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Main Vulnerability Database Vulnerabilities #VU62464

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 v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2022-20773
CWE-ID: CWE-321
Exploitation vector: Adjecent network
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco Umbrella Virtual Appliance

Detailed vulnerability description

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.


How to mitigate CVE-2022-20773

Install updates from vendor's website.

Sources