Microsoft Windows 2000 Patch: Malformed Hit-highlighting Windows 2000 Update.
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Microsoft Windows 2000 Patch: Malformed Hit-highlighting Description

From Microsoft: This update addresses the "Malformed Hit-Highlighting" security vulnerability in Windows 2000 computers running Indexing Service, and is discussed in Microsoft Security Bulletin MS01-025. Download now to prevent a malicious user from reading files on your Web server. When you conduct a search using Indexing Serice, the hit-highlighting function provides search results that highlight portions of documents that satisfy your search query. This vulnerability exists because Indexing Service doesn't set the correct parameters for hit-highlighting search requests. If a malicious user provides a specific type of malformed request, it retrieves files on the server, regardless of the permissions that have been set by the administrator. By design, the hit-highlighting feature allows the user to specify the name of the document to be hit-highlighted. The user should only be able to request documents within the server's virtual directories; however, if a specific type of malformed argument is provided, it can be used to request a file by its physical location on the drive.

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