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                        National Cyber Alert System

                 Technical Cyber Security Alert TA07-128A


Microsoft Updates for Multiple Vulnerabilities

   Original release date: May 8, 2007
   Last revised--
   Source: US-CERT


Systems Affected

     * Microsoft Windows
     * Microsoft Windows Server
     * Microsoft Internet Explorer
     * Microsoft Office for Windows and Mac OS X
     * Microsoft Exchange
     * Microsoft CAPICOM
     * Microsoft BizTalk


Overview

   Microsoft has released updates that address critical vulnerabilities
   in Microsoft Windows, Internet Explorer, Office, Exchange,
   Cryptographic API Component Object Model (CAPICOM), and BizTalk.
   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, Internet Explorer, Office, Exchange, CAPICOM, and
   BizTalk as part of the Microsoft Security Bulletin Summary for May
   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.

   In addition a previously disclosed vulnerability in Microsoft DNS RPC
   is addressed in this update.

   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 May
   2007 Security Bulletins. The Security Bulletins describe any known
   issues related to the updates. Note any known issues described in the
   Bulletins and test for any potentially adverse effects in your
   environment.

   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 May 2007 updates -
       <https://www.kb.cert.org/vuls/byid?searchview&query=ms07-may>

     * Technical Cyber Security Alert TA07-103A: Microsoft Windows DNS
       RPC Buffer Overflow -
       <https://www.us-cert.gov/cas/techalerts/TA07-103A.html>

     * Securing Your Web Browser -
       <https://www.us-cert.gov/reading_room/securing_browser/>

     * Microsoft Security Bulletin Summary for May 2007 -
       <https://www.microsoft.com/technet/security/bulletin/ms07-may.mspx>

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

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


____________________________________________________________________

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

     <https://www.us-cert.gov/cas/techalerts/TA07-128A.html>
 ____________________________________________________________________

   Feedback can be directed to US-CERT Technical Staff. Please send
   email to <cert@cert.org> with "TA07-128A Feedback VU#853184" in the
   subject.
 ____________________________________________________________________

   For instructions on subscribing to or unsubscribing from this
   mailing list, visit <https://www.us-cert.gov/cas/signup.html>.
 ____________________________________________________________________

   Produced 2007 by US-CERT, a government organization.
   Terms of use:

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


   Revision History

   May 8, 2007: Initial release


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