Microsoft Windows Kernel vulnerable to privilege escalation

Overview

Microsoft Windows contains a privilege escalation vulnerability that could allow an authenticated, local attacker to gain complete control of the affected system.

Description

Winlogon is the component of Microsoft Windows responsible for interactive, security related functions.

Upon logon, Winlogon parses the system directory, user directory, and current working directory to load the appropriate user profile settings and applications. The default load order in Microsoft Windows 2000 may allow an autheticated, local attacker to elevate their user privleges by placing a specially crafted DLL in the user directory or current working directory.

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Impact

An authenticated, local attacker can elevate their privleges to gain complete control of the system, including the ability to install programs, view, change or delete data, or create new accounts.

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Solution

Update

Apply the update provided by Microsoft. Refer to Microsoft Security Bulletin MS06-051 for more information.

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Please refer to the Microsoft Security Bulletin MS06-051 for more information.

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Vendor Information

337244

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Microsoft Corporation __ Affected

Notified: August 08, 2006 Updated: August 09, 2006

Status

Affected

Vendor Statement

We have not received a statement from the vendor.

Vendor Information

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

Addendum

Update

Apply the update provided by Microsoft. Refer to Microsoft Security Bulletin MS06-051 for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23337244 Feedback>).

CVSS Metrics

Group	Score	Vector
Base
Temporal
Environmental

References

• <http://www.microsoft.com/technet/security/bulletin/ms06-051.mspx&gt;
• <http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dllproc/base/dynamic-link_library_search_order.asp&gt;

Acknowledgements

This vulnerability was reported by Microsoft, who in turn credit Reed Arvin of Canaudit, Inc. for reporting this vulnerability.

This document was written by Joseph Pruszynski.

Other Information

CVE IDs:	CVE-2006-3443
Severity Metric:	2.69 Date Public: