Why 0x1 is diallowed in URL

Question

GET /P%EF%BF%BD%EF%BF%BD%01 HTTP/1.0
Host: www.XXXXXX.com
Accept: /
User-Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022; .NET CLR 3.0.4506.2152; .NET CLR 3.5.30729; InfoPath.2)
Connection: Close
Referer: http://www.XXXXX.com/P%EF%BF%BD%EF%BF%BD%01
X-Forwarded-For: 64.22.253.131&nbsp;

samstep · Answer

Sanjib,&nbsp;
What is the violation you are getting on this URL? &nbsp;
Simply find this request in the Event Logs (navigate to this URL again to cause a block again is needed) and check the Event Logs/Application/Requests? Click on it and you will see the explanation - all violations triggered by this request.&nbsp;
Hope this helps,&nbsp;
Regards,&nbsp;
Sam&nbsp;

sanjib_dwibedy_ · Answer

Thanks Sam.&nbsp;

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Why 0x1 is diallowed in URL

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