142 lines
2.8 KiB
Ruby
142 lines
2.8 KiB
Ruby
# -*- coding: binary -*-
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module Msf
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###
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#
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# This module provides methods for sending raw 802.11 frames using the
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# ruby-lorco2n extension.
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# Please see the ruby-lorcon documentation for more information.
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#
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###
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module Exploit::Lorcon2
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#
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# Initializes an instance of an exploit module that accesses a 802.11 network
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#
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def initialize(info = {})
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super
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default_intf = 'wlan0'
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default_driver = 'autodetect'
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if (Rex::Compat.is_windows())
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# Default to the the first airpcap device on Windows
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default_intf = "\\\\.\\airpcap00"
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# Default to the airpcap driver on Windows
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default_driver = 'airpcap'
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end
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register_options(
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[
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OptString.new('INTERFACE', [true, 'The name of the wireless interface', default_intf]),
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OptString.new('DRIVER', [true, 'The name of the wireless driver for lorcon', default_driver]),
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OptInt.new('CHANNEL', [true, 'The initial channel', 11]),
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], Msf::Exploit::Lorcon2
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)
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begin
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if(Rex::Compat.is_windows())
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airpcap = Rex::FileUtils.find_full_path("airpcap.dll")
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if (not airpcap)
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raise RuntimeError, "The airpcap.dll library must be installed"
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end
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end
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require 'Lorcon2'
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@lorcon_loaded = true
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rescue ::Exception => e
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@lorcon_loaded = false
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@lorcon_error = e
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end
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end
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#
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# Opens a handle to the specified wireless device
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#
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def open_wifi
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if (not @lorcon_loaded)
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print_status("The Lorcon2 module is not available: #{@lorcon_error}")
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raise RuntimeError, "Lorcon2 not available"
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end
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if (datastore['DRIVER'] == "autodetect")
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self.wifi = ::Lorcon::Device.new(datastore['INTERFACE'])
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else
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self.wifi = ::Lorcon::Device.new(datastore['INTERFACE'], datastore['DRIVER'])
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end
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if (not self.wifi)
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raise RuntimeError, "Could not initialize the wireless device interface"
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end
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# Configure for injmon
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self.wifi.openinjmon() or raise RuntimeError, "Could not open device in inject/monitor combo mode: " + self.wifi.error
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# Configure channel
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self.wifi.channel = datastore['CHANNEL']
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# TODO - add mod/rate once lorcon2 supports it
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self.wifi
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end
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#
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# This monstrosity works around a series of bugs in the interrupt
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# signal handling of Ruby 1.9 and Lorcon2
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#
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def each_packet(count=-1)
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return if not wifi
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begin
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@wifi_count = 0
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reader = framework.threads.spawn("Lorcon2Receiver", false) do
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wifi.each_packet(count.to_i) do |pkt|
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yield(pkt)
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@wifi_count += 1
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end
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end
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reader.join
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rescue ::Exception
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raise $!
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ensure
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reader.kill if reader.alive?
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end
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@wifi_count
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end
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def close_wifi
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self.wifi = nil
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end
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#
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# Converts ethernet addresses to binary
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#
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def eton(addr)
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addr.split(':').map { |c| c.hex.chr }.join
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end
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def channel
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self.wifi.channel
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end
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def next_channel
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cur = self.wifi.channel
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nxt = (cur > 10) ? 1 : cur + 1
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self.wifi.channel = nxt
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end
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attr_accessor :wifi
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end
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end
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