Q243404: Winobj.exe May Permit You to View Securable Jet500.dll Objects

Article: Q243404
Product(s): Microsoft Windows NT
Version(s): 4.0
Operating System(s): 
Keyword(s): kbgraphxlinkcriticalkbfixlist
Last Modified: 08-MAY-2002

-------------------------------------------------------------------------------
The information in this article applies to:

- Microsoft Windows NT Server version 4.0 
- Microsoft Windows NT Server, Enterprise Edition version 4.0 
- Microsoft Windows NT Workstation version 4.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

The following securable (event/semaphore/mutex) objects may exist on the system
name space:

- \BaseNamedObjects\Proc Count:* (semaphore)

- \BaseNamedObjects\Collect:* (semaphore)

- \BaseNamedObjects\New Proc:* (mutex)

- \BaseNamedObjects\Access:* (mutex)

- \BaseNamedObjects\Done:* (event)

If these objects exist, they may be viewed by using Microsoft Object Viewer
(Winobj.exe). In Windows NT 4.0 Service Pack 6a and earlier, these objects have
NULL Access Control Lists (ACL), meaning that everyone has all access to these
objects.

CAUSE
=====

These objects are created and opened by Jet500.dll (the JET Engine .dll file)
for synchronization purposes among instances of itself when they are loaded in
different processes. Microsoft WINS and DHCP services use Jet500.dll.

The Jet500.dll file described in the following article in the Microsoft Knowledge
Base creates the aforementioned events, semaphores, and mutexs with an Access
Control Element (ACE) for administrators:

  Q244599 Fixes Required in TCSEC C2 Security Evaluation Configuration for
  Windows NT 4.0 Service Pack 6a

Specifically, only administrators (DOMAIN_ALIAS_RID_ADMINS) are given GENERIC_ALL
access. Others do not have WRITE_DAC or WRITE_OWNER access.

RESOLUTION
==========

The following files are available for download from the Microsoft Download
Center or Microsoft's FTP site. Click the file names below to download the
appropriate file:

English:

  x86:

  Microsoft Download Center: DownloadDownload Q244599i.exe now
  (http://download.microsoft.com/download/winntsp/Patch/SP6a_C2/NT4/EN-US/Q244599i.exe)

  FTP: DownloadDownload Q244599i.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postsp6a/c2-fix/Q244599i.exe)

  Alpha:

  Microsoft Download Center: DownloadDownload Q244599a.exe now
  (http://download.microsoft.com/download/winntsp/Patch/SP6a_C2/ALPHA/EN-US/Q244599a.exe)

  FTP: DownloadDownload Q244599a.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/usa/nt40/hotfixes-postsp6a/c2-fix/Q244599a.exe)

French:

  x86:

  


  FTP: DownloadDownload Q244599i.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/frn/nt40/hotfixes-postsp6a/c2-fix/Q244599i.exe)

  Alpha:

  


  FTP: DownloadDownload Q244599a.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/frn/nt40/hotfixes-postsp6a/c2-fix/Q244599a.exe)

Spanish:

  x86:

  


  FTP: DownloadDownload Q244599i.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/spa/nt40/hotfixes-postsp6a/c2-fix/Q244599i.exe)

  Alpha:

  


  FTP: DownloadDownload Q244599a.exe now
  (ftp://ftp.microsoft.com/bussys/winnt/winnt-public/fixes/spa/nt40/hotfixes-postsp6a/c2-fix/Q244599a.exe)

For additional information about how to download Microsoft Support files, click
the article number below to view the article in the Microsoft Knowledge Base:

  Q119591 How to Obtain Microsoft Support Files from Online Services

Microsoft used the most current virus detection software available on the date of
posting to scan this file for viruses. After it is posted, the file is housed on
secure servers that prevent any unauthorized changes to the file.

The English version of this fix should have the following file attributes or
later:

  Date        Time      Size   File name   Platform
  ------------------------------------------------
  10/13/1999  02:28p  458,512  Jet500.dll  x86
  10/13/1999  02:26p  698,640  Jet500.dll  Alpha



STATUS
======

Microsoft has confirmed this to be a problem in Windows NT 4.0.

Additional query words: c2 security_patch

======================================================================
Keywords          : kbgraphxlinkcritical kbfixlist
Technology        : kbWinNTsearch kbWinNTWsearch kbWinNTW400 kbWinNTW400search kbWinNT400search kbWinNTSsearch kbWinNTSEntSearch kbWinNTSEnt400 kbWinNTS400search kbWinNTS400
Version           : :4.0
Hardware          : ALPHA x86
Issue type        : kbprb
Solution Type     : kbfix

=============================================================================

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.

Copyright Microsoft Corporation 1986-2002.