Snort mailing list archives

Re: False positive?


From: Joel Esler <jesler () sourcefire com>
Date: Tue, 12 Apr 2011 10:28:36 -0400

I've been told by a trusted advisor that the page was created with
Dreamweaver.  Dreamweaver is very powerful and can do some miraculous
websites.  However, it can also mess a website up (and load the same CSS
three times in a row).

So it's still not a false positive, just poor use of an html designing tool.

J

On Mon, Apr 11, 2011 at 10:54 PM, Shirk Dog <shirkdog_list () hotmail com>wrote:

 There is also bad web design with the mhtml vulnerability with some
websites matching the triggering condition.


Shirkdog
Free your mind...
http://www.shirkdog.us



------------------------------
Date: Mon, 11 Apr 2011 21:11:20 -0400
From: jesler () sourcefire com
To: Shawn.Jefferson () bcferries com
CC: snort-users () lists sourceforge net
Subject: Re: [Snort-users] False positive?


Unfortunately I'm not sure what to tell you, that website exactly matches
the vulnerability description and testing that we have done in house.
 Import of the same exact css time after time after time.

@import url("Home/AM-Home.css");
@import url("Home/AM-Home.css");
@import url("Home/AM-Home.css");

It's not a false positive, as that's the triggering condition for the
vulnerability. Poor web design?  Maybe, but there is a lot of really
interesting code on that page.  Take a look at the source.

J

On Mon, Apr 11, 2011 at 7:17 PM, Jefferson, Shawn <
Shawn.Jefferson () bcferries com> wrote:

 The following site triggered SID 1:18196 WEB-CLIENT Microsoft Internet
Explorer CSS importer use-after-free attempt.

hxxp://www.automagic.com/

It looks to me like a false positive, in that there doesn’t appear to be an
exploit, but just poor web design.  Can someone with more knowledge of how
this vulnerability is exploited take a look and share your thoughts?

Shawn




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--
Joel Esler | http://blog.snort.org | http://vrt-blog.snort.org |
http://blog.clamav.net
Twitter:  http://twitter.com/snort

------------------------------------------------------------------------------
Forrester Wave Report - Recovery time is now measured in hours and minutes
not days. Key insights are discussed in the 2010 Forrester Wave Report as
part of an in-depth evaluation of disaster recovery service providers.
Forrester found the best-in-class provider in terms of services and vision.
Read this report now! http://p.sf.net/sfu/ibm-webcastpromo

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-- 
Joel Esler | http://blog.snort.org | http://vrt-blog.snort.org |
http://blog.clamav.net
Twitter:  http://twitter.com/snort
------------------------------------------------------------------------------
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Forrester found the best-in-class provider in terms of services and vision.
Read this report now!  http://p.sf.net/sfu/ibm-webcastpromo
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