HTTP Error 404.11 - Not Found
The request filtering module is configured to deny a request that contains a double escape sequence.
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.
Detailed Error Information:
Module
RequestFilteringModule
Notification
BeginRequest
Handler
ExtensionlessUrlHandler-ISAPI-4.0_64bit
Error Code
0x00000000
Requested URL
http://www.gruppomarchemultiservizi.it:80/fornitori/servizi_di_trattamento_e_avvio_al_recupero_per_i_rifiuti_da_raccolta_differenziata_in_cartacartoneplastica_e_lattinelegno_e_scarti_vegetali_e_attivit%C3%A0_ausiliarie_nel_territorio_gestito_da_mms_spa_2021_cig_8805965035/
Physical Path
D:\Inetpub\vs\MarcheMultiservizi\Web\fornitori\servizi_di_trattamento_e_avvio_al_recupero_per_i_rifiuti_da_raccolta_differenziata_in_cartacartoneplastica_e_lattinelegno_e_scarti_vegetali_e_attivit%C3%A0_ausiliarie_nel_territorio_gestito_da_mms_spa_2021_cig_8805965035\
Logon Method
Not yet determined
Logon User
Not yet determined
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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