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   Allaire Security Bulletin (ASB00-09)
   Microsoft Internet Information Server Procedure Available to Eliminate
   "Link View Server-Side Component" Vulnerability
   Originally Posted: April 24, 2000
   Last Updated: April 24, 2000 Summary
   Microsoft has released a procedure to eliminate a security
   vulnerability that could allow a malicious user to cause a web server
   to crash, or potentially run arbitrary code on the server, if certain
   permissions have been changed from their default settings to
   inappropriate ones. This is not a problem with ColdFusion Server
   itself, but it is an issue that can affect ColdFusion users. Allaire
   recommends that customers follow the instructions posted on the
   Microsoft Web site to address this issue. Issue
   This issue is clearly explained in the Microsoft Knowledge Base:
   "Dvwssr.dll is a server-side component used to support the Link View
   feature in Visual Interdev 1.0. However, it contains an unchecked
   buffer. If overrun with random data, it could be used to cause an
   affected server to crash, or could allow arbitrary code to run on the
   server in a System context." Further: "By default, the affected
   component, Dvwssr.dll, resides in a folder whose permissions only
   allow web authors to execute it. Under these conditions, only a person
   with web author privileges could exploit the vulnerability - but a web
   author already has the ability to upload and execute code of his
   choice, so this case represents little additional threat. However, if
   the permissions on the folder were set inappropriately, or the .dll
   were copied to a folder with lower permissions, it could be possible
   for other users to execute the component and exploit the
   vulnerability." Affected Software Versions
     * Any ColdFusion Server running on Microsoft Internet Information
       Server 4.0 or 5.0
       
   What Allaire is Doing
   This is not an Allaire product. We are recommending that customers
   reference the information at Microsoft's site to address this issue.
   What Customers Should Do
   There are patches to correct this problem. These are detailed in the
   following Microsoft Security Bulletin (MS00-025):
   [4]http://www.microsoft.com/technet/security/bulletin/ms00-025.asp
   Please note: this issue and patch may not be required for all IIS
   users. Allaire customers should review all material in the Microsoft
   Security Bulletin and related documents carefully before applying the
   patch. As always, customers should test patch changes in a testing
   environment before modifying production servers. Revisions
   April 24, 2000 -- Bulletin first created. Reporting Security Issues
   Allaire is committed to addressing security issues and providing
   customers with the information on how they can protect themselves. If
   you identify what you believe may be a security issue with an Allaire
   product, please send an email to secure@allaire.com. We will work to
   appropriately address and communicate the issue. Receiving Security
   Bulletins
   When Allaire becomes aware of a security issue that we believe
   significantly affects our products or customers, we will notify
   customers when appropriate. Typically this notification will be in the
   form of a security bulletin explaining the issue and the response.
   Allaire customers who would like to receive notification of new
   security bulletins when they are released can sign up for our security
   notification service. For additional information on security issues at
   Allaire, please visit the Security Zone at:
   [5]http://www.allaire.com/security
   THE INFORMATION PROVIDED BY ALLAIRE IN THIS BULLETIN IS PROVIDED "AS
   IS" WITHOUT WARRANTY OF ANY KIND. ALLAIRE DISCLAIMS ALL WARRANTIES,
   EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY
   AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ALLAIRE
   CORPORATION OR ITS SUPPLIERS BE LIABLE FOR ANY DAMAGES WHATSOEVER
   INCLUDING DIRECT, INDIRECT, INCIDENTAL, CONSEQUENTIAL, LOSS OF
   BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF ALLAIRE CORPORATION OR
   ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
   SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR
   CONSEQUENTIAL OR INCIDENTAL DAMAGES SO THE FOREGOING LIMITATION MAY
   NOT APPLY.
   
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   [6]Year 2000 (Y2K)    [7]Site problems?    [8]Service questions?
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References

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   3. javascript:history.back()
   4. http://www.microsoft.com/technet/security/bulletin/ms00-025.asp
   5. http://www.allaire.com/security
   6. http://www.allaire.com/developer/year2000
   7. mailto:webmaster@allaire.com
   8. mailto:info@allaire.com
   9. http://www.allaire.com/privacy/