CVE-2017-6747
First published: Mon Aug 07 2017(Updated: )
A vulnerability in the authentication module of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to bypass local authentication. The vulnerability is due to improper handling of authentication requests and policy assignment for externally authenticated users. An attacker could exploit this vulnerability by authenticating with a valid external user account that matches an internal username and incorrectly receiving the authorization policy of the internal account. An exploit could allow the attacker to have Super Admin privileges for the ISE Admin portal. This vulnerability does not affect endpoints authenticating to the ISE. The vulnerability affects Cisco ISE, Cisco ISE Express, and Cisco ISE Virtual Appliance running Release 1.3, 1.4, 2.0.0, 2.0.1, or 2.1.0. Release 2.2.x is not affected. Cisco Bug IDs: CSCvb10995.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Identity Services Engine (ISE) | =1.3\(0.722\) | |
| Cisco Identity Services Engine (ISE) | =1.3\(0.876\) | |
| Cisco Identity Services Engine (ISE) | =1.3\(0.909\) | |
| Cisco Identity Services Engine (ISE) | =1.3\(106.146\) | |
| Cisco Identity Services Engine (ISE) | =1.3\(120.135\) | |
| Cisco Identity Services Engine (ISE) | =1.4\(0.109\) | |
| Cisco Identity Services Engine (ISE) | =1.4\(0.181\) | |
| Cisco Identity Services Engine (ISE) | =1.4\(0.253\) | |
| Cisco Identity Services Engine (ISE) | =1.4\(0.908\) | |
| Cisco Identity Services Engine (ISE) | =2.0\(0.147\) | |
| Cisco Identity Services Engine (ISE) | =2.0\(0.169\) | |
| Cisco Identity Services Engine (ISE) | =2.0\(0.222\) | |
| Cisco Identity Services Engine (ISE) | =2.0\(1.130\) | |
| Cisco Identity Services Engine (ISE) | =2.0_base | |
| Cisco Identity Services Engine (ISE) | =2.1\(0.474\) | |
| Cisco Identity Services Engine (ISE) | =2.1\(0.800\) | |
| Cisco Identity Services Engine (ISE) | =2.1\(102.101\) | |
| Cisco Identity Services Engine (ISE) | =2.1_base |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2017-6747?
CVE-2017-6747 has been rated as high severity due to its potential to allow unauthorized access to the Cisco Identity Services Engine.
How do I fix CVE-2017-6747?
To mitigate CVE-2017-6747, it is recommended to upgrade the Cisco Identity Services Engine to a fixed version provided by Cisco.
What are the potential impacts of CVE-2017-6747?
Exploitation of CVE-2017-6747 could allow an unauthenticated attacker to bypass local authentication and access restricted areas.
Which Cisco Identity Services Engine versions are affected by CVE-2017-6747?
CVE-2017-6747 affects multiple versions of Cisco Identity Services Engine, including versions 1.3 and 2.0.
Is there a workaround for CVE-2017-6747?
Currently, there are no documented workarounds for CVE-2017-6747; updating to the latest version is the recommended approach.
- agent/references
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/weakness
- agent/author
- agent/severity
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/cisco
- canonical/cisco identity services engine (ise)
- version/cisco identity services engine (ise)/1.3\(0.722\)
- version/cisco identity services engine (ise)/1.3\(0.876\)
- version/cisco identity services engine (ise)/1.3\(0.909\)
- version/cisco identity services engine (ise)/1.3\(106.146\)
- version/cisco identity services engine (ise)/1.3\(120.135\)
- version/cisco identity services engine (ise)/1.4\(0.109\)
- version/cisco identity services engine (ise)/1.4\(0.181\)
- version/cisco identity services engine (ise)/1.4\(0.253\)
- version/cisco identity services engine (ise)/1.4\(0.908\)
- version/cisco identity services engine (ise)/2.0\(0.147\)
- version/cisco identity services engine (ise)/2.0\(0.169\)
- version/cisco identity services engine (ise)/2.0\(0.222\)
- version/cisco identity services engine (ise)/2.0\(1.130\)
- version/cisco identity services engine (ise)/2.0_base
- version/cisco identity services engine (ise)/2.1\(0.474\)
- version/cisco identity services engine (ise)/2.1\(0.800\)
- version/cisco identity services engine (ise)/2.1\(102.101\)
- version/cisco identity services engine (ise)/2.1_base