CVE Vulnerabilities

CVE-2017-6747

Improper Authentication

Published: Aug 07, 2017 | Modified: Oct 09, 2019
CVSS 3.x
9.8
CRITICAL
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
7.5 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.

Affected Software

Name Vendor Start Version End Version
Identity_services_engine Cisco 1.3(0.722) (including) 1.3(0.722) (including)
Identity_services_engine Cisco 1.3(0.876) (including) 1.3(0.876) (including)
Identity_services_engine Cisco 1.3(0.909) (including) 1.3(0.909) (including)
Identity_services_engine Cisco 1.3(106.146) (including) 1.3(106.146) (including)
Identity_services_engine Cisco 1.3(120.135) (including) 1.3(120.135) (including)
Identity_services_engine Cisco 1.4(0.109) (including) 1.4(0.109) (including)
Identity_services_engine Cisco 1.4(0.181) (including) 1.4(0.181) (including)
Identity_services_engine Cisco 1.4(0.253) (including) 1.4(0.253) (including)
Identity_services_engine Cisco 1.4(0.908) (including) 1.4(0.908) (including)
Identity_services_engine Cisco 2.0(0.147) (including) 2.0(0.147) (including)
Identity_services_engine Cisco 2.0(0.169) (including) 2.0(0.169) (including)
Identity_services_engine Cisco 2.0(0.222) (including) 2.0(0.222) (including)
Identity_services_engine Cisco 2.0(1.130) (including) 2.0(1.130) (including)
Identity_services_engine Cisco 2.0_base (including) 2.0_base (including)
Identity_services_engine Cisco 2.1(0.474) (including) 2.1(0.474) (including)
Identity_services_engine Cisco 2.1(0.800) (including) 2.1(0.800) (including)
Identity_services_engine Cisco 2.1(102.101) (including) 2.1(102.101) (including)
Identity_services_engine Cisco 2.1_base (including) 2.1_base (including)

Potential Mitigations

References