full-disclosure - [FD] FortiOS (Fortinet)

Open Source and information security mailing list archives

Message-ID: <CABBygYrKM7q7eoSpSivQN8AnraUduqOytoLw9gYs_dsp9T_+RA@mail.gmail.com>
Date: Thu, 17 Mar 2016 21:10:13 +0000
From: Javier Nieto <jnietotn@...il.com>
To: fulldisclosure@...lists.org
Subject: [FD] FortiOS (Fortinet) - Open Redirect and Cross Site Scripting

Description
===================================================================
The FortiOS webui accepts a user-controlled input that specifies a link to
an external site, and uses that link in a redirect.

The redirect input parameter is also prone to a cross site scripting.

Public Fortinet Security Advisory (Mar 16 2016):
http://www.fortiguard.com/advisory/fortios-open-redirect-vulnerability

PoC
===================================================================
The parameter "redir" in the Fortiweb web login portal is vulnerable to
Open Redirect and Cross Site Scripting

1. Open Redirect
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http[s]://fortigate-management-ip-address/login?redir=http[:]//evil-site

2. Cross Site Scripting
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
http[s]://fortigate-management-ip-address/login?redir=javascript:alert(document.cookie)

Solution
===================================================================
Upgrade to one the following FortiOS versions:
* 5.0 branch: 5.0.13 or above
* 5.2 branch: 5.2.3 or above
* 5.4 branch: 5.4.0 or above

*** 4.3 and lower branches are not affected by this vulnerability.

Authors:
===================================================================
Javier Nieto - @BehindFirewalls
http://www.behindthefirewalls.com

_______________________________________________
Sent through the Full Disclosure mailing list
https://nmap.org/mailman/listinfo/fulldisclosure
Web Archives & RSS: http://seclists.org/fulldisclosure/

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives