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                        National Cyber Alert System

                 Technical Cyber Security Alert TA07-191A


Microsoft Updates for Multiple Vulnerabilities

   Original release date: July 10, 2007
   Last revised: --
   Source: US-CERT


Systems Affected

     * Microsoft Windows
     * Microsoft Excel
     * Microsoft Publisher
     * Microsoft .NET Framework
     * Microsoft Internet Information Services (IIS)
     * Microsoft Windows Vista Firewall


Overview

   Microsoft has released updates that address critical vulnerabilities
   in Microsoft Windows, Excel, Publisher, .NET Framework, Internet
   Information Services, and Windows Vista Firewall. Exploitation of
   these vulnerabilities could allow a remote, unauthenticated attacker
   to execute arbitrary code or cause a denial of service on a vulnerable
   system.


I. Description

   Microsoft has released updates to address vulnerabilities that affect
   Microsoft Windows, Excel, Publisher, .NET Framework, Internet
   Information Services, and Windows Vista Firewall as part of the
   Microsoft Security Bulletin Summary for July 2007. The most severe
   vulnerabilities could allow a remote, unauthenticated attacker to
   execute arbitrary code or cause a denial of service on a vulnerable
   system.

   Further information about the vulnerabilities addressed by these
   updates is available in the Vulnerability Notes Database


II. Impact

   A remote, unauthenticated attacker could execute arbitrary code on a
   vulnerable system. An attacker may also be able to cause a denial of
   service.


III. Solution

Apply updates from Microsoft

   Microsoft has provided updates for these vulnerabilities in the July
   2007 Security Bulletins. The Security Bulletins describe any known
   issues related to the updates. Administrators are encouraged to note
   any known issues that are described in the Bulletins and test for any
   potentially adverse effects.

   System administrators may wish to consider using an automated patch
   distribution system such as Windows Server Update Services (WSUS).


IV. References

     * US-CERT Vulnerability Notes for Microsoft July 2007 updates -
       <http://www.kb.cert.org/vuls/byid?searchview&query=ms07-jul>
 
    * Securing Your Web Browser -
       <http://www.us-cert.gov/reading_room/securing_browser/>

     * Microsoft Security Bulletin Summary for July 2007 -
       <http://www.microsoft.com/technet/security/bulletin/ms07-jul.mspx>

     * Microsoft Update - <https://update.microsoft.com/microsoftupdate/>

     * Microsoft Office Update - <http://officeupdate.microsoft.com/>
 
     * Windows Server Update Services -
       <http://www.microsoft.com/windowsserversystem/updateservices/default.mspx>


 ____________________________________________________________________

   The most recent version of this document can be found at:

     <http://www.us-cert.gov/cas/techalerts/TA07-191A.html>
 ____________________________________________________________________

   Feedback can be directed to US-CERT Technical Staff. Please send
   email to <cert@cert.org> with "TA07-191A Feedback VU#487905" in the
   subject.
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   For instructions on subscribing to or unsubscribing from this
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   Produced 2007 by US-CERT, a government organization.

   Terms of use:

     <http://www.us-cert.gov/legal.html>
 ____________________________________________________________________


   Revision History

   July 10, 2007: Initial release





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