VDB
CVE-2022-20773
CVE-2022-20773
PUBLISHED
CVSS 7.5 HIGH
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 0.88% · 75.8th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score
0.88%
75.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Cisco Umbrella Insights Virtual Appliance | n/a |
| cisco | umbrella | 0 |
Exploit Intelligence
- 20220420 Cisco Umbrella Virtual Appliance Static SSH Host Key Vulnerability (circl)
- nids_rules.yar (github-yara)
- nids_rules.yar (github-yara)
- nids_rules.yar (github-yara)
- nids_rules.yar (github-yara)
- Spring4Shell.yara (github-yara)
- Spring4Shell.yara (github-yara)
- Spring4Shell.yara (github-yara)
- Spring4Shell.yara (github-yara)
- spring_core_rce.yara (github-yara)
…and 15 more exploits
Timeline
- Apr 7, 2022 PoC Published
- Apr 21, 2022 CVE Published
- Apr 22, 2022 EPSS Score
- Jun 11, 2022 EPSS Score
- Aug 1, 2022 EPSS Score
- Sep 20, 2022 EPSS Score
- Nov 9, 2022 EPSS Score
- Feb 17, 2023 EPSS Score
- Mar 7, 2023 EPSS Score
- Apr 8, 2023 EPSS Score
- May 27, 2023 EPSS Score
- Jul 16, 2023 EPSS Score
References
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ce-roomos-dos-c65x2Qf2 advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-java-spring-rce-Zx9GUc67 advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uva-static-key-6RQTRs4c advisory
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-vim-privesc-T2tsFUf advisory
- https://nvd.nist.gov/vuln/detail/CVE-2022-20773 advisory