CVE-2017-6679
Cisco Umbrella Virtual Appliance Unauthenticated Remote Access Impermissible
Description
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.
INFO
Published Date :
Dec. 1, 2017, 5:29 p.m.
Last Modified :
Aug. 17, 2023, 7:15 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
0.5
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2017-6679.
| URL | Resource |
|---|---|
| http://www.securityfocus.com/bid/101567 | Third Party Advisory VDB Entry |
| https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE | |
| https://support.umbrella.com/hc/en-us/articles/115004154423 | Third Party Advisory |
| https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15 | Third Party Advisory |
| https://www.info-sec.ca/advisories/Cisco-Umbrella.html | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-6679 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-6679 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 17, 2023
Action Type Old Value New Value Added Reference https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-umbrella-tunnel-gJw5thgE [No Types Assigned] -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-254 NVD-CWE-noinfo -
Initial Analysis by [email protected]
Dec. 19, 2017
Action Type Old Value New Value Added CVSS V2 (AV:L/AC:H/Au:S/C:C/I:C/A:C) Added CVSS V3 AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://support.umbrella.com/hc/en-us/articles/115004154423 No Types Assigned https://support.umbrella.com/hc/en-us/articles/115004154423 Third Party Advisory Changed Reference Type https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15 No Types Assigned https://support.umbrella.com/hc/en-us/articles/115004752143-Virtual-Appliance-Vulnerability-due-to-always-on-SSH-Tunnel-RESOLVED-2017-09-15 Third Party Advisory Changed Reference Type https://www.info-sec.ca/advisories/Cisco-Umbrella.html No Types Assigned https://www.info-sec.ca/advisories/Cisco-Umbrella.html Third Party Advisory Changed Reference Type http://www.securityfocus.com/bid/101567 No Types Assigned http://www.securityfocus.com/bid/101567 Third Party Advisory, VDB Entry Added CWE CWE-254 Added CPE Configuration OR *cpe:2.3:a:cisco:umbrella:*:*:*:*:*:*:*:* versions up to (including) 2.0.3 -
CVE Modified by [email protected]
Dec. 05, 2017
Action Type Old Value New Value Added Reference https://www.info-sec.ca/advisories/Cisco-Umbrella.html [No Types Assigned] -
CVE Modified by [email protected]
Dec. 03, 2017
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/101567 [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-6679 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2017-6679
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.24777
percentile