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Directory traversal in SafeNet Sentinel Protection and Key Server 7.4.1.0



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                             Luigi Auriemma

Application:  SafeNet Sentinel Protection Server
              SafeNet Sentinel Keys Server
              http://www.safenet-inc.com
Versions:     <= 7.4.1.0 (aka SPI740SecurityPatch)
Platforms:    Windows
Bug:          directory traversal
Exploitation: remote
Date:         10 Feb 2008
Author:       Luigi Auriemma
              e-mail: aluigi@xxxxxxxxxxxxx
              web:    aluigi.org


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1) Introduction
2) Bug
3) The Code
4) Fix


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===============
1) Introduction
===============


The Sentinel Protection and Key Server are two simple webservers for
the monitoring of the licenses and listen respectively on ports 6002
and 7002.


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======
2) Bug
======


Both the webservers are affected by a directory traversal
vulnerability exploitable using the backslash delimiter (the servers
don't support hex chars) allowing an attacker to download any file in
the disk on which the services are installed.

It's funny to note that the security patch available from November 2007
was released just to fix a directory traversal vulnerability but they
dropped only the slash delimiter leaving the backslash working.


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===========
3) The Code
===========


GET /..\..\..\..\..\..\..\boot.ini HTTP/1.0


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======
4) Fix
======


No fix


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--- 
Luigi Auriemma
http://aluigi.org