Portcullis Security Advisory 06-059


Vulnerable System:

ImgSvr


Vulnerability Title:

The ImgSvr is vulnerable to directory traversal.


Vulnerability discovery and development:

Portcullis Security Testing Services.  Further research was then carried out.

Credit for Discovery:

Tim Brown - Portcullis Computer Security Ltd.


Affected systems:

All known versions of ImgSvr.


Details:

It is possible to pass a value in the template parameter of requests to ImgSvr which
causes arbitrary files to be returned from outside of the web root as follows:

GET /?template=../../../../../../../../../../etc/passwd HTTP/1.0


Impact:

An attacker could cause access to arbitrary files.


Exploit:

Exploit code is not required.


Vendor Status:

Contacted frett27@userssourceforge.net and p.orbry@wanadoo.fr


e-mailed - 16th January 2007
e-mailed - 22nd January 2007
e-mailed - 14th February 2007
e-mailed - 15th March 2007


Copyright:

Copyright © Portcullis Computer Security Limited 2005, All rights reserved 
worldwide.

Permission is hereby granted for the electronic redistribution of this 
information. It is not to be edited or altered in any way without the express 
written consent of Portcullis Computer Security Limited.


Disclaimer:

The information herein contained may change without notice. Use of this 
information constitutes acceptance for use in an AS IS condition. There are 
NO warranties, implied or otherwise, with regard to this information or its 
use. Any use of this information is at the user's risk. In no event shall the 
author/distributor (Portcullis Computer Security Limited) be held liable for 
any damages whatsoever arising out of or in connection with the use or spread 
of this information.