Vulnerability identifier: #VU62464
Vulnerability risk: High
CVSSv3.1: 7.7 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID:
CWE-ID:
CWE-321
Exploitation vector: Local network
Exploit availability: No
Vulnerable software:
Cisco Umbrella Virtual Appliance
Server applications /
Virtualization software
Vendor: Cisco Systems, Inc
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.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
Cisco Umbrella Virtual Appliance: 3.0.0 - 3.3.1
External links
http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-uva-static-key-6RQTRs4c
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa11399
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.