What is CVE-2022-20773?

CVE-2022-20773 is a high-severity vulnerability in Cisco Umbrella Insights Virtual Appliance, classified under Use of Hard-coded Cryptographic Key. CVSS score: 7.5/10. Published 2022-04-21.

How severe is CVE-2022-20773?

High severity. CVSS v3 base score is 7.5 out of 10.

Is CVE-2022-20773 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Cisco Umbrella Insights Virtual Appliance

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.

EPSS: 0.012 (65.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Cisco Umbrella Insights Virtual Appliance — versions n/a
Cisco Umbrella
Cisco Umbrella_virtual_appliance

Weakness classification (CWE)

Public proof-of-concept exploits

Dr3wPdraw3rs/cv

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2022-20773?: CVE-2022-20773 is a high-severity vulnerability in Cisco Umbrella Insights Virtual Appliance, classified under Use of Hard-coded Cryptographic Key. CVSS score: 7.5/10. Published 2022-04-21.
How severe is CVE-2022-20773?: High severity. CVSS v3 base score is 7.5 out of 10.
Is CVE-2022-20773 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.