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Microsoft Security Bulletin (MS00-034)

Patch Available for "Office 2000 UA Control" Vulnerability

Originally Posted: May 12, 2000

Summary

Microsoft has released a patch that eliminates a security vulnerability in Microsoft® Office 2000 and Office 2000 family members. The vulnerability could allow a malicious web site operator to take inappropriate action on the computer of a user who visited his web site.

Frequently asked questions regarding this vulnerability and the patch can be found at http://www.microsoft.com/technet/security/bulletin/fq00-034.mspx

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General Information

Issue

An ActiveX control that ships as part of Office 2000 is incorrectly marked as "safe for scripting". This control, the Office 2000 UA Control, is used by the "Show Me" function in Office Help, and allows Office functions to be scripted. A malicious web site operator could use the control to carry out Office functions on the machine of a user who visited his site.

The control ships only as part of Office 2000 (and Office 2000 family members, as listed below). The patch removes all unsafe functionality, with the result that the "Show Me" function will be disabled in Office 2000.

Affected Software Versions

•

Office 2000

Note: The products in the Office suite also are available for purchase separately. The control ships as part of the following such products:

•	Word 2000
•	Excel 2000
•	Powerpoint 2000
•	Access 2000
•	Photodraw 2000
•	FrontPage 2000
•	Project 2000
•	Publisher 2000
•	Outlook 2000
•	Works 2000 Suite

Vulnerability Identifier: CVE-2000-0419

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Patch Availability

•	http://office.microsoft.com/downloads/2000/Uactlsec.aspx NOTE: Additional security patches are available at the Microsoft Download Center

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More Information

Please see the following references for more information related to this issue.

•	Frequently Asked Questions: Microsoft Security Bulletin MS00-034, http://www.microsoft.com/technet/security/bulletin/fq00-034.mspx
•	Microsoft Knowledge Base (KB) article Q262767, http://support.microsoft.com/default.aspx?scid=kb;en-us;262767
•	Microsoft TechNet Security web site, http://www.microsoft.com/technet/security/default.mspx

Obtaining Support on this Issue

This is a fully supported patch. Information on contacting Microsoft Technical Support is available at http://support.microsoft.com/contactussupport/?ws=support.

Acknowledgments

Microsoft thanks Dildog of the @Stake, Inc. L0pht Research Labs for reporting this vulnerability to us and working with us to protect customers.

Revisions

•	May 12, 2000: Bulletin Created.

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