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AUSCERT External Security Bulletin Redistribution
ESB-2003.0279 -- Microsoft Security Bulletin MS00-084
Patch Available for 'Indexing Services Cross Site Scripting'
Vulnerability
11 April 2003
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Microsoft Indexing Services
Vendor: Microsoft
Operating System: Windows 2000
Windows NT
Impact: Execute Arbitrary Code/Commands
Access Required: Remote
CVE Names: CVE-2000-0942
Ref: ESB-2000.327
ESB-2000.025
ESB-2000.023
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Title: Patch Available for
'Indexing Services Cross Site Scripting' Vulnerability
Released: 02 November 2000
Revised: 09 April 2003 (version 2.0)
Software: Microsoft Indexing Services for Windows 2000
Microsoft Indexing Services for Windows NT 4.0
Impact: Cross Site Scripting
Bulletin: MS00-084
Microsoft encourages customers to review the Security Bulletin at:
http://www.microsoft.com/technet/security/bulletin/MS00-084.asp
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Reason for Revision:
====================
Subsequent to the release of this bulletin, it was discovered
that an available package for the version of the Indexing Service
which shipped with the NT 4.0 Option Pack had never been released.
The bulletin is being updated to include the download locations for
that version of the fix.
Issue:
======
On February 20, 2000, Microsoft and the CERT Coordination Center
published information on a newly-identified security vulnerability
affecting all web server products. This vulnerability, known as
Cross-Site Scripting (CSS), results when web applications don't
properly validate inputs before using them in dynamic web pages.
If a malicious web site operator were able to lure a user to his
site, and had identified a third-party web site that was vulnerable
to CSS, he could potentially use the vulnerability to "inject"
script into a web page created by the other web site, which would
then be delivered to the user. The net effect would be to cause
the malicious user's script to run on the user's machine using
the trust afforded the other site.
The vulnerability can affect any software that runs on a web
server, accepts user input, and uses it to generate web pages
without sufficient validation. Microsoft has identified an
Indexing Service component (CiWebHitsFile) that, when called
from a specially crafted URL, is vulnerable to this scenario.
Mitigating Factors:
===================
- The Indexing Service ships and installs with Windows 2000,
but is not enabled by default.
- The Indexing Service for Windows NT 4.0 ships with the
NT Option Pack, and is not installed or enabled by default.
Patch Availability:
===================
- A patch is available to fix this vulnerability. Please read the
Security Bulletins at
http://www.microsoft.com/technet/security/bulletin/ms00-084.asp
for information on obtaining this patch.
Acknowledgment:
===============
- Eiji "James" Yoshida <mailto:ptrs-ejy@bp.iij4u.or.jp>
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THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED"AS IS "WITHOUT WARRANTY OF ANY KIND. MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.
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