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
HandlerStaticFile
Error Code0x00000000
Requested URLhttp://matotumba.com:80/mttmb/2020/Trayectoria/2016/16-02-14%20La%20Masacre%20de%20los%20Corazones%20Negros/index_files/vlb_images1/160214_la_masacre_de_los_corazones_negros_3.jpg
Physical PathE:\sites\Single11\quantticddc\webroot\mttmb\2020\Trayectoria\2016\16-02-14%20La%20Masacre%20de%20los%20Corazones%20Negros\index_files\vlb_images1\160214_la_masacre_de_los_corazones_negros_3.jpg
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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