Internet Information Services 7.5

Error Summary

HTTP Error 404.11 - Not Found

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

Detailed Error Information
ModuleRequestFilteringModule
NotificationBeginRequest
HandlerAboMapperCustom-8814
Error Code0x00000000
Requested URLhttp://www.tourist-hotel.com.gr:80/gr/article/%CF%83%CF%85%CE%BC%CE%B2%CE%BF%CF%85%CE%BB%CE%AD%CF%82%2D%CE%B3%CE%B9%CE%B1%2D%CF%84%CE%B7%CE%BD%2D%CF%85%CE%B3%CE%B5%CE%AF%CE%B1%2D%CE%BA%CE%B1%CE%B9%2D%CF%84%CE%B7%CE%BD%2D%CE%B1%CF%83%CF%86%CE%AC%CE%BB%CE%B5%CE%B9%CE%B1%2D%CF%80%CE%AC%CF%81%CE%B3%CE%B1
Physical Pathc:\SERVER_IIS\websites\gr.com.tourist-hotel\gr\article\%CF%83%CF%85%CE%BC%CE%B2%CE%BF%CF%85%CE%BB%CE%AD%CF%82%2D%CE%B3%CE%B9%CE%B1%2D%CF%84%CE%B7%CE%BD%2D%CF%85%CE%B3%CE%B5%CE%AF%CE%B1%2D%CE%BA%CE%B1%CE%B9%2D%CF%84%CE%B7%CE%BD%2D%CE%B1%CF%83%CF%86%CE%AC%CE%BB%CE%B5%CE%B9%CE%B1%2D%CF%80%CE%AC%CF%81%CE%B3%CE%B1
Logon MethodNot yet determined
Logon UserNot yet determined
Most likely causes:
  • The request contained a double escape sequence and request filtering is configured on the Web server to deny double escape sequences.
Things you can try:
  • Verify the configuration/system.webServer/security/requestFiltering@allowDoubleEscaping setting in the applicationhost.config or web.confg file.
Links and More Information 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.

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