Fortinet FortiOS CVE-2017-7739 Cross Site Scripting Vulnerability

Bugtraq ID:	101679
Class:	Input Validation Error
CVE:	CVE-2017-7739
Remote:	Yes
Local:	No
Published:	Nov 03 2017 12:00AM
Updated:	Dec 19 2017 10:36PM
Credit:	usd AG, Serge Ivanov of Payvision BV and Dhiraj Datar, Paramount Computer Systems.
Vulnerable:	Fortinet Fortios 5.6 Fortinet Fortios 5.4.5 Fortinet Fortios 5.4.4 Fortinet Fortios 5.4.3 Fortinet Fortios 5.4.2 Fortinet Fortios 5.4.1 Fortinet Fortios 5.2.11 Fortinet Fortios 5.2.8 Fortinet Fortios 5.2.6 Fortinet Fortios 5.2.5 Fortinet Fortios 5.2.4 Fortinet Fortios 5.2.3 Fortinet Fortios 5.2.2 Fortinet Fortios 5.2.1 Fortinet Fortios 5.4.0 Fortinet Fortios 5.2.9 Fortinet Fortios 5.2.10 Fortinet Fortios 5.2.0
Not Vulnerable:	Fortinet Fortios 5.4.6 Fortinet Fortios 5.2.12 Fortinet Fortios 5.6.1

Fortinet FortiOS CVE-2017-7739 Cross Site Scripting Vulnerability

Fortinet FortiOS is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input.

An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This may allow the attacker to steal cookie-based authentication credentials and launch other attacks.

Fortinet FortiOS 5.2.0 through 5.2.11, 5.4.0 through 5.4.5 and 5.6.0 are vulnerable.

Fortinet FortiOS CVE-2017-7739 Cross Site Scripting Vulnerability

To exploit this issue an attacker must entice an unsuspecting victim to open a malicious URI.

Fortinet FortiOS CVE-2017-7739 Cross Site Scripting Vulnerability

Solution:
Updates are available. Please see the references or vendor advisory for more information.

Fortinet FortiOS CVE-2017-7739 Cross Site Scripting Vulnerability

References:

• FortiOS Homepage (Fortinet)
  
• FortiOS Reflected XSS in Web Proxy Disclaimer Response web page (Fortinet)