CVE-2017-6747

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Una vulnerabilidad en el módulo de autenticación de Cisco Identity Services Engine (ISE) podría permitir que un atacante remoto sin autenticar omita la autenticación local. Esto se debe a un manejo incorrecto de las peticiones de autenticación y asignación de políticas para los usuarios autenticados externamente. Un atacante podría explotar esta vulnerabilidad autenticándose con una cuenta válida de usuario externo que coincida con un nombre de usuario interno y recibiendo de forma errónea la política de autorización de la cuenta interna. Con un exploit, el atacante podría tener privilegios de Super Admin para el portal ISE Admin. Esta vulnerabilidad no afecta a los extremos que se autentican en el ISE. Este problema afecta a Cisco ISE, Cisco ISE Express y los dispositivos virtuales de Cisco ISE que estén en sus versiones 1.3, 1.4, 2.0.0, 2.0.1 o 2.1.0. La versión 2.2.x no se ha visto afectada. Cisco Bug IDs: CSCvb10995.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2017-03-09 CVE Reserved
2017-08-07 CVE Published
2023-03-07 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (2)

URL	Tag	Source
http://www.securitytracker.com/id/1039054	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170802-ise	2019-10-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.3\(0.722\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.3\(0.722\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.3\(0.876\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.3\(0.876\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.3\(0.909\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.3\(0.909\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.3\(106.146\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.3\(106.146\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.3\(120.135\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.3\(120.135\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.4\(0.109\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.4\(0.109\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.4\(0.181\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.4\(0.181\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.4\(0.253\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.4\(0.253\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				1.4\(0.908\) Search vendor "Cisco" for product "Identity Services Engine" and version "1.4\(0.908\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.0\(0.147\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.0\(0.147\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.0\(0.169\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.0\(0.169\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.0\(0.222\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.0\(0.222\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.0\(1.130\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.0\(1.130\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.0_base Search vendor "Cisco" for product "Identity Services Engine" and version "2.0_base"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.1\(0.474\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.1\(0.474\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.1\(0.800\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.1\(0.800\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.1\(102.101\) Search vendor "Cisco" for product "Identity Services Engine" and version "2.1\(102.101\)"		-		Affected
Cisco Search vendor "Cisco"		Identity Services Engine Search vendor "Cisco" for product "Identity Services Engine"				2.1_base Search vendor "Cisco" for product "Identity Services Engine" and version "2.1_base"		-		Affected