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07.09.2003 - MS03-025: Flaw in Windows Message Handling through Utility Manager Could Enable Privilege Elevation (822679)

View Microsoft related news. There is a flaw in the way that Utility Manager handles Windows messages. Windows messages provide a way for interactive processes to react to user events (for example, keystrokes or mouse movements) and to communicate with other interactive processes. A security vulnerability occurs because the control that provides the list of accessibility options to the user does not correctly validate Windows messages that are sent to it. Therefore, it is possible for one process in the interactive desktop to use a specific Windows message to cause the Utility Manager process to run a callback function at the address of its choice. Because the Utility Manager process runs at a higher level of permissions than the first process, this provides the first process with a method of exercising that higher level of permissions.

- Download Windows 2000 Patch
- View Knowledge Base Article 822679
- View Microsoft Security Bulletin MS03-025
- View Microsoft End User Security Bulletin
- Visit Microsoft Corporation

NID: 981 / Submitted by: TACKtech Team
Categories: Microsoft, Patches and Updates
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