FIX: Response.Redirect Method Permits Newlines to Be Embedded in the URL That Is Passed to It

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Article ID: 325329 - View products that this article applies to.
This article was previously published under Q325329
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Symptoms

The Response.Redirect method permits newlines as part of the URL to which the method redirects.

This behavior can permit users to inject additional headers (such as cookies) if you base your redirects on user input, as in the following example:
Response.Redirect(Request.QueryString["URL"]);
				

Resolution

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next .NET Framework service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the fix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
NOTE: In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The typical support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

The English version of this fix has the file attributes (or later) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date          Time    Version         Size       File name
   ------------------------------------------------------------------
   08-Jul-2002   23:46   1.0.3705.294     192,512   Aspnet_isapi.dll
   08-Jul-2002   23:39   1.0.3705.294      19,332   Aspnet_perf.ini
   08-Jul-2002   23:46   1.0.3705.294      24,576   Aspnet_regiis.exe
   08-Jul-2002   23:46   1.0.3705.294      28,672   Aspnet_wp.exe
   09-Jul-2002   12:00   1.0.3705.294   1,187,840   System.Web.dll
   20-Mar-2002   21:31                      8,709   SmartNav.js
   20-Mar-2002   21:31                      7,003   SmartNavIE5.js
				

Status

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

More information

After you apply the hotfix, a System.ArgumentException is thrown if a newline character is detected in the redirect URL.

Properties

Article ID: 325329 - Last Review: November 1, 2013 - Revision: 3.0
Applies to
  • Microsoft ASP.NET 1.0
Keywords: 
kbnosurvey kbarchive kbhotfixserver kbqfe kbbug kbfix kbnetframe100presp3fix KB325329

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