SYMPTOMS
Microsoft has released a patch that eliminates a security
vulnerability in a component that is a part of Windows 2000. The vulnerability
could allow a malicious Web site operator to learn the names and properties of
files and folders on the computer of a visiting user.
An ActiveX
control that is included as part of the Indexing Service is incorrectly marked
as "safe for scripting." Because of this, the ActiveX control may be started by
Web site programs. This control could be used to enumerate files and folders,
and to view their properties. Note that it would not be necessary for the
Indexing service to be running for the vulnerability to be exploited. However,
if it were running, the control could also be used to search for files that
contain specific words. The vulnerability could not be used to read files,
except by using a scenario that is described in the following Microsoft
Security Bulletin:
The vulnerability could not be used to change, add, or delete
information on your computer.
NOTE: A patch has been provided for the Indexing service version 3.0,
but not for Index Server 2.0. This is primarily due to the different delivery
methods that are used for these two products. Indexing service 3.0 is included
as a part of all versions of Windows 2000, and because of this, the
vulnerability could affect all Windows 2000 users. However, Index Server 2.0 is
included as a part of the Windows NT 4.0 Option Pack. Because of this, to be
affected by the vulnerability in Index Server 2.0, a Web master would need to
browse untrusted Internet sites from his own Web server, and this is contrary
to normal recommended practices.
Note that if you applied an earlier
version of the fix that is described in this article, you may receive the
following error message when you view ASP Web pages that use JavaScript:
16386 No such interface supported
The version
of the fix that is described in this article resolves this problem.
RESOLUTION
To resolve this problem, obtain the latest service
pack for Windows 2000. For additional information, click the following article
number to view the article in the Microsoft Knowledge Base:
260910 How to Obtain the Latest Windows 2000 Service Pack
The following file is available for download from the Microsoft
Download Center:
For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591 How to Obtain Microsoft Support Files from Online Services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file.
The English version of this fix
should have the following file attributes or later:
Date Time Version Size File name
-----------------------------------------------------
8/7/2001 06:34p 5.0.2195.4088 49,936 Ixsso.dll
