Vulnerability Note VU#122076

Overview

Microsoft Windows NT4.0 and Windows 2000 contain a vulnerability that could permit a local user to gain elevated privileges on the system.

Description

Microsoft Windows NT4.0 and Windows 2000 provide an API to the kernel to create Local Descriptor Tables (LDT) for applications. A failure to filter content in the programming interface could permit an attacker to access and modify protected memory space. This could result in the attacker gaining elevated privileges. The vulnerable function in the API is NtSetLdtEntries. For more details, please see Microsoft Security Bulletin MS04-011 and eEye Digital Security Advisory [AD20040413D].

Impact

A local user may be able to gain elevated privileges on the system.

Solution

Apply a patch from the vendor Microsoft Security Bulletin MS04-011 contains patch information to resolve this issue.

Systems Affected (Learn More)

Vendor	Status	Date Notified	Date Updated
Microsoft Corporation	Affected	-	14 Apr 2004

If you are a vendor and your product is affected, let us know.

CVSS Metrics (Learn More)

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

References

• http://www.microsoft.com/technet/security/bulletin/ms04-011.mspx
• http://www.eeye.com/html/Research/Advisories/AD20040413D.html

Credit

Thanks to Microsoft and eEye Digital Security for reporting this vulnerability.

This document was written by Jason A Rafail.

Other Information

• CVE IDs: CAN-2003-0910
• Date Public: 13 Apr 2004
• Date First Published: 14 Apr 2004
• Date Last Updated: 14 Apr 2004
• Severity Metric: 9.06
• Document Revision: 3