Microsoft ASP.NET ValidatePath Module

Microsoft has released an ASP.NET HTTP module that Web site administrators can apply to their Web server. This module will protect all ASP.NET applications against all potential canonicalization problems known to Microsoft.
  • Version:


    File Name:


    Date Published:


    File Size:

    295 KB

        Microsoft is currently investigating a reported vulnerability affecting ASP.NET that could allow an attacker to send a specially-formed URL request that could result in the system bypassing authentication and disclosing content.

        Microsoft is working on a security update for this reported vulnerability. To aid customers in protecting their ASP.NET applications, an HTTP module has been developed that implements canonicalization best practices. By applying this module to your web server, all ASP.NET applications on the server are protected against canonicalization problems known to Microsoft as of the publication date. For more information on this reported vulnerability, visit the following Microsoft web site:
  • Supported Operating System

    TabletPC, Windows 2000, Windows 2000 Advanced Server, Windows 2000 Professional Edition , Windows 2000 Server, Windows 2000 Service Pack 2, Windows 2000 Service Pack 3, Windows 2000 Service Pack 4, Windows Server 2003, Windows XP, Windows XP Embedded, Windows XP Embedded Service Pack 1, Windows XP Embedded Service Pack 2 , Windows XP Media Center Edition, Windows XP Professional Edition, Windows XP Service Pack 1, Windows XP Service Pack 2

      • Internet Information Server (IIS) 5.0, 5.1 or 6.0
      • Microsoft .NET Framework SDK
      • Click the Download button on this page to start the download and click Go.

      • Do one of the following:

        • To start the installation immediately, click Open or Run this program from its current location.

        • To copy the download to your computer for installation at a later time, click Save or Save this program to disk.

      • For detailed installation instructions please refer to Knowledge Base Article 887289.

    • Please visit the Security Forum on if you have questions or comments about this module.
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