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Cisco Security Advisory: Cisco Identity Services Engine Authentication Bypass Vulnerability
Advisory ID: cisco-sa-20170802-ise
Revision: 1.0
For Public Release: 2017 August 2 16:00 GMT
Last Updated: 2017 August 2 16:00 GMT
CVE ID(s): CVE-2017-6747
CVSS Score v(3): 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
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Summary
=======
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.
Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ise [“https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ise”]
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