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HomeHomeDNN Open Source...DNN Open Source...Module ForumsModule ForumsGalleryGallerydouble scape errordouble scape error
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2/22/2007 1:36 PM
 
Phil

Joined: 2/21/2007
Posts: 3

When I click Edit, Add File, Add Albume or Maintenance I receive the error below.

Thanks for any help!

 

Server Error in Application "Default Web Site/DotNetNuke"

 

HTTP Error 404.11 - Not Found

 

Description: The request filtering module is configured to deny a request that contains a double escape sequence.

Error Code: 0x00000000

Notification: BeginRequest

Module: RequestFilteringModule

Requested URL: http://wks-phil:80/dotnetnuke/Gallery/tabid/54/ctl/AlbumEdit/mid/373/path/+/currentstrip/1/Default.aspx

Physical Path: C:\inetpub\wwwroot\DotNetNuke\Gallery\tabid\54\ctl\AlbumEdit\mid\373\path\+\currentstrip\1\Default.aspx

Logon User: Not yet determined

Logon Method: Not yet determined

Handler: PageHandlerFactory-ISAPI-2.0

Most likely causes:

  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.

What you can try:

  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.

More Information...

Server Version Information: Internet Information Services 7.0.

This is a security feature. Do not change this feature unless the scope of the change is fully understood. You should take a network trace before changing this value to confirm that the request is not malicious. If double escape sequences are allowed by the server, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This could be caused by a malformed URL sent to the server by a malicious user.
 
New Post
3/23/2007 4:45 AM
 
Siegfried Teufl

Joined: 3/16/2006
Posts: 3

I had the same problem and found this solution:

1. Locate the following directory:
%windir%\System32\inetsrv\config
2. Open the applicationHost.config file in a text editor such as Notepad.
3. In the applicationHost.config file, locate the following code: 
<section name="requestFiltering" overrideModeDefault="Deny" />
4. Replace the code that you found in step 3 with the following code: 
<section name="requestFiltering" overrideModeDefault="Allow"/>
5.
Open the web.config of your DotNetNuke installation in a text editor such as Notepad.
6. 
Insert this code into the web.config after <configSections>
<configuration>
<configSections>
...

</configSections>
	<system.webServer>
		<security>
			<requestFiltering allowDoubleEscaping="True"/>
		</security>
	</system.webServer>
...
</configuration>
   
 
  Now the gallery module should work

 
New Post
3/23/2007 5:07 PM
 
Phil

Joined: 2/21/2007
Posts: 3

Wow, thanks for the fix.  I had thought maybe DNN wasn't gonna work out for me.  Guess I'll give it another try now.  Thanks!
 
New Post
3/24/2007 6:55 AM
 
Siegfried Teufl

Joined: 3/16/2006
Posts: 3

IIS 7.0 management console may modify the web.config of dotnetnuke and add a section <system.webServer> to the end of the file.

In this case locate <system.webServer> and add only the following to this section:

<system.webServer>
...
 <security>
    <requestFiltering allowDoubleEscaping="True"/>
 </security>
<system.webServer>
 
New Post
3/26/2007 8:58 AM
 
Phil

Joined: 2/21/2007
Posts: 3

Cool, that is likely it.  I'm testing on a Vista machine.  I look into it.

 

Thanks again!
 
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