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CERT Coordination Center

Microsoft Windows 2000 Network Dynamic Data Exchange (DDE) executes code as Local System

Vulnerability Note VU#107280

Original Release Date: 2002-07-13 | Last Revised: 2002-07-13

Overview

The Windows 2000 Network DDE agent permits local users to execute commands with system privileges.

Description

Dynamic Data Exchange (DDE) is an interprocess communication mechanism used in Microsoft Windows. A DDE share is an area of memory which is used to store and retrieve data. Network DDE is used between process on two different computers that wish to communicate using DDE. The service that manages this network communication is called the Network DDE Agent. When a share is marked by its creator as a truted share, it can be used by the Network DDE Agent.

When a trusted share is accessed by a local user, part of the request can include an application that will be invoked by the Network DDE Agent. Under Windows 2000, this application will run with Local System privileges. Since any local user can created trusted shares, it is possible for an intruder who already has access to the system to leverage this vulnerability to execute an arbitrary program with Local System privileges. For more information, see Microsoft Security Bulletin MS01-007. Additionally, see the bulletin provided by @Stake on this issue.

Impact

Local users can execute arbitrary commands with system privileges.

Solution

Apply a patch as described in MS01-007.

Vendor Information

107280
 
Affected   Unknown   Unaffected

Microsoft Corporation

Notified:  February 05, 2001 Updated:  July 13, 2002

Status

  Vulnerable

Vendor Statement

See http://www.microsoft.com/technet/treeview/default.asp?url=/technet/security/bulletin/MS01-007.asp

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.

Addendum

The CERT/CC has no additional comments at this time.

If you have feedback, comments, or additional information about this vulnerability, please send us email.


CVSS Metrics

Group Score Vector
Base N/A N/A
Temporal N/A N/A
Environmental N/A

References

Credit

Thanks to Microsoft and @Stake for the information provided in their bulletins.

This document was written by Shawn V Hernan based on information provided by Microsoft and @Stake.

Other Information

CVE IDs: CVE-2001-0015
Severity Metric: 25.73
Date Public: 2001-02-05
Date First Published: 2002-07-13
Date Last Updated: 2002-07-13 23:59 UTC
Document Revision: 11

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