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The Cisco Umbrella Virtual Appliance Version 2.0.3 and prior contained an undocumented encrypted remote support tunnel (SSH) which auto initiated from the customer's appliance to Cisco's SSH Hubs in the Umbrella datacenters. These tunnels were primarily leveraged for remote support and allowed for authorized/authenticated personnel from the Cisco Umbrella team to access the appliance remotely and obtain full control without explicit customer approval. To address this vulnerability, the Umbrella Virtual Appliance version 2.1.0 now requires explicit customer approval before an SSH tunnel from the VA to the Cisco terminating server can be established.
Publish Date : 2017-12-01 Last Update Date : 2019-10-02
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CVSS Scores & Vulnerability Types
| CVSS Score |
6.0 |
| Confidentiality Impact |
Complete
(There is total information disclosure, resulting in all system files being revealed.) |
| Integrity Impact |
Complete
(There is a total compromise of system integrity. There is a complete loss of system protection, resulting in the entire system being compromised.) |
| Availability Impact |
Complete
(There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.) |
| Access Complexity |
High
(Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit) |
| Authentication |
Single system
(The vulnerability requires an attacker to be logged into the system (such as at a command line or via a desktop session or web interface).) |
| Gained Access |
None |
| Vulnerability Type(s) |
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| CWE ID |
CWE id is not defined for this vulnerability |
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Products Affected By CVE-2017-6679
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Number Of Affected Versions By Product
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References For CVE-2017-6679
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Metasploit Modules Related To CVE-2017-6679
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CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is
MITRE's CWE web site.
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