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May 16, 2000 21:00 GMT
PROBLEM: The ActiveX control "Office 2000 UA Control" was incorrectly
marked as "safe for scripting" when it was shipped as a part of
Office 2000.
PLATFORM: Platforms running Office 2000 or selected members of the Office
2000 family of applications.
DAMAGE: A malicious web site operator could use the control to take
inappropriate actions on the computers of people who visited
the web site.
SOLUTION: Apply the vendor's patch as directed by the advisory.
VULNERABILITY The risk is LOW. The user must either visit the malicious web
ASSESSMENT: site or receive an HTML mail that used the control. The HTML
mail attack fails if the recipient's mail handler does not
allow the automatic execution of ActiveX controls.
[ Start of Microsoft Security Bulletin ]
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(r) 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.asp
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
Patch Availability
==================
- http://officeupdate.microsoft.com/info/ocx.htm
NOTE: Additional security patches are available at the Microsoft
Download Center
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.asp
- Microsoft Knowledge Base article Q262767 discusses this issue and
will be available soon.
- Microsoft TechNet Security web site,
http://www.microsoft.com/technet/security/default.asp
Obtaining Support on this Issue
===============================
This is a fully supported patch. Information on contacting Microsoft
Technical Support is available at
http://support.microsoft.com/support/contact/default.asp.
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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NOT APPLY.
Last updated May 12, 2000
(c) 2000 Microsoft Corporation. All rights reserved. Terms of use.
[ End of Microsoft Security Bulletin ]
CIAC wishes to acknowledge the contributions of Microsoft for the information contained in this bulletin.
CIAC services are available to DOE, DOE Contractors, and the NIH. CIAC can be contacted at:
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(same machine -- either one will work)
Anonymous FTP: ftp.ciac.org
ciac.llnl.gov
(same machine -- either one will work)