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Format string in McAfee Framework 3.6.0.569 (ePolicy Orchestrator 4.0)



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                             Luigi Auriemma

Application:  McAfee Framework
              (implemented in McAfee ePolicy Orchestrator 4.0
              http://www.mcafee.com/us/enterprise/products/system_security_management/epolicy_orchestrator.html)
Versions:     <= 3.6.0.569
Platforms:    Windows
Bug:          format string in _naimcomn_Log
Exploitation: remote
Date:         12 Mar 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
===============


McAfee Framework is a framework used for building various services for
the McAfee products.
These services include HTTP servers and agents implemented, for
example, in McAfee ePolicy Orchestrator and possibly other products.


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


The logDetail function of applib.dll (which is just a link to
naimcomn_LogDetailW -> _naimcomn_Log in nailog2.dll) is used for adding
new log entries and is affected by a format string vulnerability caused
by the calling of vsnwprintf without the needed format argument.

In McAfee ePolicy Orchestrator this vulnerability can be exploited
through the sending of a simple UDP packet with a malformed sender,
package or computer field. The output log file Agent_HOSTNAME.log is
located in the Db folder.


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


http://aluigi.org/poc/meccaffi.zip


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


No fix


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