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TUCoPS :: Windows Net Apps :: ciacj064.txt

Windows - ActiveX Scriptlet Typlib Eyedog




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             __________________________________________________________

                       The U.S. Department of Energy
                    Computer Incident Advisory Capability
                           ___  __ __    _     ___
                          /       |     /_\   /
                          \___  __|__  /   \  \___
             __________________________________________________________

                             INFORMATION BULLETIN
            ActiveX Controls, Scriptlet.typlib & Eyedog, Vulnerabilities


September 1, 1999 17:00 GMT                                       Number J-064
______________________________________________________________________________
PROBLEM:        Microsoft has identified vulnerabilities in two ActiveX
                controls, Scriptlet.typlib & Eyedog.
PLATFORM:       Any PC using Microsoft(r) Internet Explorer 4.0 and 5.0.
DAMAGE:         A malicious web page administrator could take unauthorized
                action against a person who visits their web page.
SOLUTION:       Apply patch.
______________________________________________________________________________
VULNERABILITY   Risk is high. This vulnerability could allow a malicious web
ASSESSMENT:     site operator to take inappropriate actions on the computer of
                a user who visits their web site.
______________________________________________________________________________


[  Start Microsoft Advisory  ]

Microsoft Security Bulletin (MS99-032)
- --------------------------------------

Patch Available for "Scriptlet.typlib/Eyedog" Vulnerability
Originally Posted: August 31, 1999

Summary
=======
Microsoft has released a patch that eliminates security vulnerabilities in
two ActiveX controls.  The net effect of the vulnerabilities is that a web
page could take unauthorized action against a  person who visited it.
Specifically, the web page would be able to do anything on the computer
that the user could do.

Frequently asked questions regarding this vulnerability can be found
at http://www.microsoft.com/security/bulletins/MS99-032faq.asp

Issue
=====
This issue involves two ActiveX controls, Scriptlet.typlib and Eyedog. These
controls are not in  any way related to each other; their only relationship
is that both are incorrectly marked as  "safe for scripting" and can
therefore be called from Internet Explorer.
 - Scriptlet.typlib is a control used by developers to generate
   Type Libraries for Windows Script Components. It is marked as
   "safe for scripting", but should not be because it allows local
   files to be created or modified. The patch removes the "safe
   for scripting" marking, thereby causing IE to request confirmation
   from the user before loading the control.
 - Eyedog is a control used by diagnostic software in Windows. It is
   marked as "safe for scripting", but should not be because it
   allows registry information to be queried and machine
   characteristics to be gathered. In addition, one of the control's
   methods is vulnerable to a buffer overrun attack. The patch sets
   the so-called "kill bit", which prevents it from loading within IE.

Affected Software Versions
==========================
 - Microsoft(r) Internet Explorer 4.0 and 5.0

Patch Availability
==================
 - ftp://ftp.microsoft.com/peropsys/IE/IE-Public/
   Fixes/usa/Eyedog-fix/

NOTE: Circa September 7, 1999, the patch also will be available through
WindowsUpdate.

More Information
================
Please see the following references for more information related to this
issue.
 - Microsoft Security Bulletin MS99-032: Frequently Asked Questions,
   http://www.microsoft.com/security/bulletins/MS99-032faq.asp.
 - Microsoft Knowledge Base (KB) article Q240308,
   Update Available for Scriptlet.typlib/Eyedog Security Vulnerability,
   http://support.microsoft.com/support/kb/articles/q240/3/08.asp.
 - Microsoft Knowledge Base (KB) article Q240797,
   How to Keep an ActiveX Control from Running in Internet Explorer,
   http://support.microsoft.com/support/kb/articles/q240/7/97.asp.
 - Microsoft Security Advisor web site,
   http://www.microsoft.com/security/default.asp.

(Note: It may take 24 hours from the original posting of this bulletin for
the KB articles to be  visible.)

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 acknowledges Georgi Guninski, independent consultant, for
reporting the  "Scriptlet.typlib" vulnerability to us, and Shane Hird of
Australia, Adrian O'Neill and Richard Smith for reporting the "Eyedog"
vulnerability to us.

Revisions
=========
 - August 31, 1999: Bulletin Created.

- ----------------------------------------------------------------------

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS PROVIDED "AS IS"
WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS ALL WARRANTIES, EITHER
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(c) 1999 Microsoft Corporation. All rights reserved. Terms of Use.

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[  End Microsoft Advisory  ]

______________________________________________________________________________

CIAC wishes to acknowledge Microsoft Corp. for the information contained in
this bulletin.
______________________________________________________________________________



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