Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2017-6679 |
CWE-ID | CWE-923 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Cisco Umbrella Virtual Appliance Server applications / Virtualization software |
Vendor |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU79657
Risk: Medium
CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2017-6679
CWE-ID:
CWE-923 - Improper Restriction of Communication Channel to Intended Endpoints
Exploit availability: No
DescriptionThe vulnerability allows a remote user to compromise the affected system.
The vulnerability exists due to an undocumented support mechanism in the remote support feature of Cisco Umbrella Virtual Appliance. A remote user can obtain full control without explicit customer approval.
MitigationInstall updates from vendor's website.
Vulnerable software versionsCisco Umbrella Virtual Appliance: before 2.1.0
External linkshttp://support.umbrella.com/hc/en-us/articles/115004154423
http://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15
http://bst.cloudapps.cisco.com/bugsearch/bug/CSCwh07325cisco-sa-umbrella-tunnel-gJw5thgE
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.