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):

                  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
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                  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
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                  For additional information on security issues at Allaire, please visit the Security Zone at:
                  http://www.allaire.com/security

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