##
# $Id$
##

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


require 'msf/core'

class Metasploit3 < Msf::Auxiliary

	include Msf::Auxiliary::JohnTheRipper

	def initialize
		super(
			'Name'           => 'John the Ripper MS SQL Password Cracker (Fast Mode)',
			'Version'        => "$Revision$",
			'Description'    => %Q{
					This module uses John the Ripper to identify weak passwords that have been
				acquired from the mssql_hashdump module. Passwords that have been successfully
				cracked are then saved as proper credentials
			},
			'Author'         =>
				[
					'TheLightCosine <thelightcosine[at]gmail.com>',
					'hdm'
				],
			'License'        => MSF_LICENSE  # JtR itself is GPLv2, but this wrapper is MSF (BSD)
		)
	end

	def run
		@wordlist = Rex::Quickfile.new("jtrtmp")

		@wordlist.write( build_seed().flatten.uniq.join("\n") + "\n" )
		@wordlist.close
		print_status("Cracking MSSQL Hashes")
		crack("mssql")
		print_status("Cracking MSSQL05 Hashes")
		crack("mssql05")

	end

	def build_seed

		seed = []
		#Seed the wordlist with Database , Table, and Instance Names
		schemas = myworkspace.notes.find(:all, :conditions => ['ntype like ?', '%.schema%'])
		unless schemas.nil? or schemas.empty?
			schemas.each do |anote|
				anote.data.each do |key,value|
					seed << key
					value.each{|a| seed << a}
				end
			end
		end

		instances = myworkspace.notes.find(:all, :conditions => ['ntype=?', 'mssql.instancename'])
		unless instances.nil? or instances.empty?
			instances.each do |anote|
				seed << anote.data['InstanceName']
			end
		end

		# Seed the wordlist with usernames, passwords, and hostnames

		myworkspace.hosts.find(:all).each {|o| seed << john_expand_word( o.name ) if o.name }
		myworkspace.creds.each do |o|
			seed << john_expand_word( o.user ) if o.user
			seed << john_expand_word( o.pass ) if (o.pass and o.ptype !~ /hash/)
		end

		# Grab any known passwords out of the john.pot file
		john_cracked_passwords.values {|v| seed << v }

		#Grab the default John Wordlist
		john = File.open(john_wordlist_path, "rb")
		john.each_line{|line| seed << line.chomp}

		return seed

	end


	def crack(format)

		hashlist = Rex::Quickfile.new("jtrtmp")
		ltype= "#{format}.hashes"
		myloots = myworkspace.loots.find(:all, :conditions => ['ltype=?', ltype])
		unless myloots.nil? or myloots.empty?
			myloots.each do |myloot|
				begin
					mssql_array = CSV.read(myloot.path).drop(1)
				rescue Exception => e
					print_error("Unable to read #{myloot.path} \n #{e}")
				end
				mssql_array.each do |row|
					hashlist.write("#{row[0]}:0x#{row[1]}:#{myloot.host.address}:#{myloot.service.port}\n")
				end
			end
			hashlist.close

			print_status("HashList: #{hashlist.path}")
			print_status("Trying Wordlist: #{@wordlist.path}")
			john_crack(hashlist.path, :wordlist => @wordlist.path, :rules => 'single', :format => format)

			print_status("Trying Rule: All4...")
			john_crack(hashlist.path, :incremental => "All4", :format => format)

			print_status("Trying Rule: Digits5...")
			john_crack(hashlist.path, :incremental => "Digits5", :format => format)

			cracked = john_show_passwords(hashlist.path, format)

			print_status("#{cracked[:cracked]} hashes were cracked!")
			cracked[:users].each_pair do |k,v|
				print_good("Host: #{v[1]} Port: #{v[2]} User: #{k} Pass: #{v[0]}")
				report_auth_info(
					:host  => v[1],
					:port => v[2],
					:sname => 'mssql',
					:user => k,
					:pass => v[0]
				)
			end
		end
	end

end