Computer Security
[EN] securityvulns.ru no-pyccku


Related information

  Microsoft Windows XP redirector service buffer overflow

  NSFOCUS SA2003-01: Microsoft Windows XP Redirector Local Buffer Overflow Vulnerability

From:MICROSOFT <secure_(at)_microsoft.com>
Date:07.02.2003
Subject:Microsoft Security Bulletin MS03-005: Unchecked Buffer in Windows Redirector Could Allow Privilege Elevation (810577)

-----BEGIN PGP SIGNED MESSAGE-----

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

Title:      Unchecked Buffer in Windows Redirector Could Allow
           Privilege Elevation (810577)
Date:       05 February 2003
Software:   Microsoft Windows XP
Impact:     Privilege elevation
Max Risk:   Important
Bulletin:   MS03-005

Microsoft encourages customers to review the Security Bulletins at:
http://www.microsoft.com/technet/security/bulletin/ms03-005.asp
http://www.microsoft.com/security/security_bulletins/ms03-005.asp
- -------------------------------------------------------------------


Issue:
======
The Windows Redirector is used by a Windows client to access files,
whether local or remote, regardless of the underlying network
protocols in use. For example, the "Add a Network Place" Wizard or
the NET USE command can be used to map a network share as a local
drive, and the Windows Redirector will handle the routing of
information to and from the network share.

A security vulnerability exists in the implementation of the
Windows Redirector on Windows XP because an unchecked buffer is
used to receive parameter information. By providing malformed data
to the Windows Redirector, an attacker could cause the system to
fail, or if the data was crafted in a particular way, could run
code of the attacker's choice.

Mitigating Factors:
====================
- An attacker would require the ability to log onto the system
interactively in order to run programs that use the Windows
Redirector. This vulnerability cannot be exploited remotely.
- Windows XP systems that are not shared between users would not
be at risk.

Risk Rating:
============
- Windows XP: Important

Patch Availability:
===================
- A patch is available to fix this vulnerability. Please read the
  Security Bulletins at

  http://www.microsoft.com/technet/security/bulletin/ms03-005.asp
  http://www.microsoft.com/security/security_bulletins/ms03-005.asp

  for information on obtaining this patch.

Acknowledgment:
===============
- NSFocus (http://www.nsfocus.com)

Home User Security Notification Service
=======================================
Microsoft is now offering the Microsoft Security Update, a security
bulletin notification service for home users.  To learn more about
this service, please go to:

http://www.microsoft.com/security/security_bulletins/decision.asp

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


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.

-----BEGIN PGP SIGNATURE-----
Version: PGP 7.1

iQEVAwUBPkFkK40ZSRQxA/UrAQHveggArplVZ+xJOiBNEztCmEu3mQNk2Yt8bX6A
4Ua76YSaBOQgl2ukzlX8vFhcBBLzcEbAay0AYkLlxl05UrPXNdOSdS8j/qYp+8zP
GTfJpZ95VoWZi6mlL/AEKWYRaWpLLXiFnn/PT+ORobWOuHeLQ4A0NHfQq3EAPVIV
oIjJrluSpmSIKSvhcGtYEmGhHBggS9fVYb1TtNPs3RCAMuiSivxXSnVmALUsobkC
RMsjQllfUy5VxlPLYtMQ4DkVYu+OHnLQ/k6+OyG8qpR9/6I4pO+rtqyfVsu1YBXn
5dVDdhZCl1uGIw0Y2JXFqntj+ExZp7vd9amQM9sYMMDEE17quvQKwQ==
=aCRC
-----END PGP SIGNATURE-----



*******************************************************************

You have received this e-mail bulletin because of your subscription to the Microsoft Product Security
Notification Service.  For more information on this service, please visit
http://www.microsoft.com/technet/security/notify.asp.

To verify the digital signature on this bulletin, please download our PGP key at
http://www.microsoft.com/technet/security/notify.asp.

To unsubscribe from the Microsoft Security Notification Service, please visit the Microsoft Profile Center
at http://register.microsoft.com/regsys/pic.asp

If you do not wish to use Microsoft Passport, you can unsubscribe from the Microsoft Security Notification
Service via email as described below:
Reply to this message with the word UNSUBSCRIBE in the Subject line.

For security-related information about Microsoft products, please visit the Microsoft Security Advisor web
site at http://www.microsoft.com/security.

About | Terms of use | Privacy Policy
© SecurityVulns, 3APA3A, Vladimir Dubrovin
Nizhny Novgorod