Vulnerability Note VU#212892

Microsoft Windows creates COM object identifiers incorrectly

Overview

A vulnerability exists in Microsoft's COM object component. Explotiation of this vulnerability may lead to information disclosure and the ability for an attacker to open services on network communication ports.

I. Description

Microsoft's (COM) object component creates object identifiers in a way that may disclose information about a system. This information may then be used to permit applications to open and communicate over ports that were not previously open. This vulnerability affects the following systems:

Windows NT Workstation 4.0
Windows NT Server 4.0
Windows NT Server 4.0, Terminal Server Edition
Windows 2000
Windows XP
Windows Server 2003

II. Impact

An attacker may be able to have application enable network communication through alternate or unexpected communication ports. This could potentially allow services to communicate on ports that are not filtered or protected by the systems security policy.

III. Solution

Apply a patch from the vendor

Microsoft Security Bulletin MS04-012 contains patch information to resolve this issue.

Systems Affected

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Vulnerable	13-Apr-2004

References

http://www.microsoft.com/technet/security/bulletin/ms04-012.mspx

Credit

The Microsoft Security Bulletin credits Todd Sabin of BindView for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

Date Public:	2004-04-13
Date First Published:	2004-04-13
Date Last Updated:	2004-04-13
CERT Advisory:
CVE-ID(s):	CAN-2004-0124
NVD-ID(s):	CAN-2004-0124
US-CERT Technical Alerts:
Metric:	11.39
Document Revision:	4

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