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CVE-2017-6747

Severity CVSS v4.0:
Pending analysis
Type:
CWE-287 Authentication Issues
Publication date:
07/08/2017
Last modified:
20/04/2025

Description

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.

Impact

Vector 3.x
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS v3.1 Severity and Metrics:

Base Score: 9.80 CRITICAL
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

Base Score 3.x
9.80
Severity 3.x
CRITICAL
Vector 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:P CVSS v2.0 Severity and Metrics:

Base Score: 7.50 HIGH
Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): Physical
Availability (A): Physical

Base Score 2.0
7.50
Severity 2.0
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:cisco:identity_services_engine:1.3\(0.722\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.3\(0.876\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.3\(0.909\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.3\(106.146\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.3\(120.135\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.4\(0.109\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.4\(0.181\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.4\(0.253\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:1.4\(0.908\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.0\(0.147\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.0\(0.169\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.0\(0.222\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.0\(1.130\):*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.0_base:*:*:*:*:*:*:*
cpe:2.3:a:cisco:identity_services_engine:2.1\(0.474\):*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools