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Re: [ISSForum] Content_Compound_Bad_File_Extension tunable?

Subject: Re: [ISSForum] Content_Compound_Bad_File_Extension tunable?
Date: Tue, 27 Feb 2007 12:08:05 +0300
AFAIK, yes, the situation is still the same: no turning params
available. This is the only info in pam.chm (KB #2190):

===========
Content_Compound_File_Bad_Extension

Description
This signature triggers when a compound file is found that has an
inappropriate file name extension. "Compound file" refers to a specific
file format used to store data by a number of Microsoft applications
like Excel and Word.

Type Attack 
Priority  high  
Algorithm Id 2106192 
Bugtraq References BID-13132 
 
CVE References CVE-2005-0063 
 

Known False Negatives
A compound file may have an appropriate file name extension, yet still
be a threat to a particular desktop system. If the file name extension
is valid, but not recognized because the associated software is not
installed, the file still poses a threat. For example, a malicious
Microsoft Word document with the expected ".doc" extension is a threat
to a system that does not have Microsoft Word installed.

Vulnerabilities Exploited

Microsoft Windows HTML Application Host command execution 

===========

---
Best regards, Sergey V. Soldatov.
Information security department.
tel/fax +7 495 745 89 50 
tel +7 495 777 77 07 (1613) 

-----Original Message-----
From: issforum-bounces@atla-mm1.iss.net 
[mailto:issforum-bounces@atla-mm1.iss.net] On Behalf Of Johnson, Scott
Sent: Thursday, February 22, 2007 8:03 PM
To: issforum@iss.net
Subject: [ISSForum] Content_Compound_Bad_File_Extension tunable?

Last September I inquired with tech support about tuning the 
signature Content_Compound_Bad_File_Extension. I was told 
there was no pam or white list for this signature.

Is this still the case?

 

Scott Johnson 

Information Security

Electric Reliability Council of Texas

www.ercot.com

Office: 512-248-3152

Cell: 512-917-9844

 

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