IIS 8.0 verbose error – 404.11

HTTP Error 404.11 – Not Found

The request filtering module is configured to reject requests that contain double escape sequences.

Most likely cause:

  • The request contained a double escape sequence, and the request filtering configured on the web server rejected the double escape sequence.

Actions to try:

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

Detailed error message:

module RequestFilteringModule
Notice BeginRequest
handler ExtensionlessUrlHandler-Integrated-4.0
error code 0x00000000
the requested URL https://weixin.senparc.com:443/QA?tag=%E6%9F%94%E9%81%93%E4%BA%8C%E7%BA%A7%E8%BF%90%E5%8A%A8%E5%91%98%E8%AF%81%E4%B9%A6%E6%80%8E%E6%A0%B7%E5%8D%87%E4%B8%80%E7%BA%A7%E5%8A%9E%E7%90%86%2B%E8%96%87%E8%BE%9Bbz97173168
physical path D:\SenparcWwwroot\SenparcWeixin\QA?tag=%E6%9F%94%Einstagram1%93%E4%BA%8C%E7%BA%A7%E8%BF%90%E5%8A%A8%E5% 91%98%E8%AF%81%E4%B9%A6%E6%80%8E%E6%A0%B7%E5%8D%87%E4%B8%80%E7%BA%A7%E5%8A% 9E%E7%90%86%2B%E8%96%87%E8%BE%9Bbz97173168
login method not sure yet
logged in user not sure yet

More information:

This is a safety feature. Please do not change this feature unless you are fully aware of the scope of the change. Before changing this value, a network trace should be done to confirm that the request is not malicious. If the server allows double escape sequences, modify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting. This can be caused by a malformed URL sent to the server by a malicious user.

More information”

Facebook
Pinterest
Twitter
LinkedIn
Email

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *