URLScan and UseFastPathReject fix to stop disclosure of sensitive information

There is a flag in URLScan 3 to stop URL Scan redirecting dodgy requests and instead sending back a 404 response quickly, this is "UseFastPathReject=1" (by default it is 0)

The issue outlined:
http://www.securityfocus.com/bid/7767/info

The fix explained:
http://www.securityfocus.com/archive/1/323389

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