Class: Rex::Post::HWBridge::Ui::Console::CommandDispatcher::Core

Inherits:
Object
  • Object
show all
Includes:
Rex::Post::HWBridge::Ui::Console::CommandDispatcher
Defined in:
lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb

Overview

Core hwbridge client commands that provide only the required set of commands for having a functional hwbridge client<->hardware instance.

Constant Summary collapse

CommDispatcher =
Console::CommandDispatcher
@@irb_opts =
Rex::Parser::Arguments.new(
"-h" => [ false, "Help banner."                  ],
"-e" => [ true,  "Expression to evaluate."       ])
@@load_opts =
Rex::Parser::Arguments.new(
"-h" => [ false, "Help menu."                    ])
@@client_extension_search_paths =
[ ::File.join(Rex::Root, "post", "hwbridge", "ui", "console", "command_dispatcher") ]

Instance Attribute Summary collapse

Attributes included from Ui::Text::DispatcherShell::CommandDispatcher

#shell, #tab_complete_items

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Rex::Post::HWBridge::Ui::Console::CommandDispatcher

check_hash, #client, #log_error, #msf_loaded?, set_hash

Methods included from Ui::Text::DispatcherShell::CommandDispatcher

#cmd_help, #cmd_help_help, #cmd_help_tabs, #deprecated_cmd, #deprecated_commands, #deprecated_help, #docs_dir, #help_to_s, included, #print, #print_error, #print_good, #print_line, #print_status, #print_warning, #tab_complete_directory, #tab_complete_filenames, #tab_complete_generic, #tab_complete_source_address, #unknown_command, #update_prompt

Constructor Details

#initialize(shell) ⇒ Core

Initializes an instance of the core command set using the supplied shell for interactivity.



24
25
26
27
28
29
30
31
32
33
34
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 24

def initialize(shell)
  super

  self.extensions = []
  self.bgjobs     = []
  self.bgjob_id   = 0

  # keep a lookup table to refer to transports by index
  @transport_map = {}

end

Instance Attribute Details

#bgjob_idObject (protected)

:nodoc:



524
525
526
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 524

def bgjob_id
  @bgjob_id
end

#bgjobsObject (protected)

:nodoc:



524
525
526
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 524

def bgjobs
  @bgjobs
end

#extensionsObject (protected)

:nodoc:



523
524
525
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 523

def extensions
  @extensions
end

Class Method Details

.add_client_extension_search_path(path) ⇒ Object



514
515
516
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 514

def self.add_client_extension_search_path(path)
  @@client_extension_search_paths << path unless @@client_extension_search_paths.include?(path)
end

.client_extension_search_pathsObject



517
518
519
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 517

def self.client_extension_search_paths
  @@client_extension_search_paths
end

Instance Method Details

#add_extension_client(mod) ⇒ Object (protected)

Loads the client extension specified in mod



531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 531

def add_extension_client(mod)
  loaded = false
  klass = nil
  self.class.client_extension_search_paths.each do |path|
    path = ::File.join(path, "#{mod}.rb")
    klass = CommDispatcher.check_hash(path)
    if klass.nil?
      old = CommDispatcher.constants
      next unless ::File.exist? path

      if require(path)
        new = CommDispatcher.constants
        diff = new - old

        next if diff.empty?

        klass = CommDispatcher.const_get(diff[0])

        CommDispatcher.set_hash(path, klass)
        loaded = true
        break
      else
        print_error("Failed to load client script file: #{path}")
        return false
      end
    else
      # the klass is already loaded, from a previous invocation
      loaded = true
      break
    end
  end
  unless loaded
    print_error("Failed to load client portion of #{mod}.")
    return false
  end

  # Enstack the dispatcher
  self.shell.enstack_dispatcher(klass)

  # Insert the module into the list of extensions
  self.extensions << mod
end

#cmd_backgroundObject



106
107
108
109
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 106

def cmd_background
  print_status "Backgrounding session #{client.name}..."
  client.interacting = false
end

#cmd_background_helpObject



99
100
101
102
103
104
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 99

def cmd_background_help
  print_line "Usage: background"
  print_line
  print_line "Stop interacting with this session and return to the parent prompt"
  print_line
end

#cmd_bgkill(*args) ⇒ Object

Kill a background job



475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 475

def cmd_bgkill(*args)
  if args.length.zero?
    print_line("Usage: bgkill [id]")
    return
  end

  args.each do |jid|
    jid = jid.to_i
    if self.bgjobs[jid]
      print_status("Killing background job #{jid}...")
      self.bgjobs[jid].kill
      self.bgjobs[jid] = nil
    else
      print_error("Job #{jid} was not running")
    end
  end
end

#cmd_bglist(*args) ⇒ Object

List background jobs



496
497
498
499
500
501
502
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 496

def cmd_bglist(*args)
  self.bgjobs.each_index do |jid|
    if self.bgjobs[jid]
      print_status("Job #{jid}: #{self.bgjobs[jid][:args].inspect}")
    end
  end
end

#cmd_bgrun(*args) ⇒ Object

Executes a script in the context of the hardware bridge session in the background



436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 436

def cmd_bgrun(*args)
  if args.length.zero?
    print_line(
      "Usage: bgrun <script> [arguments]\n\n" +
      "Executes a ruby script in the context of the hardware bridge session.")
    return true
  end

  jid = self.bgjob_id
  self.bgjob_id += 1

  # Get the script name
  self.bgjobs[jid] = Rex::ThreadFactory.spawn("HWBridgeBGRun(#{args[0]})-#{jid}", false, jid, args) do |myjid,xargs|
    ::Thread.current[:args] = xargs.dup
    begin
      # the rest of the arguments get passed in through the binding
      script_name = args.shift
      client.execute_script(script_name, args)
    rescue ::Exception => e
      print_error("Error in script: #{script_name}")
      elog("Error in script #{script_name}", error: e)
    end
    self.bgjobs[myjid] = nil
    print_status("Background script with Job ID #{myjid} has completed (#{::Thread.current[:args].inspect})")
  end

  print_status("Executed HWBridge with Job ID #{jid}")
end

#cmd_bgrun_tabs(*args) ⇒ Object

Map this to the normal run command tab completion



468
469
470
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 468

def cmd_bgrun_tabs(*args)
  cmd_run_tabs(*args)
end

#cmd_exit(*args) ⇒ Object Also known as: cmd_quit

Terminates the hwbridge



114
115
116
117
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 114

def cmd_exit(*args)
  print_status("Shutting down the hardware bridge...")
  shell.stop
end

#cmd_info(*args) ⇒ Object

Show info for a given Post module.

See also cmd_info in lib/msf/ui/console/command_dispatcher/core.rb



169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 169

def cmd_info(*args)
  return unless msf_loaded?

  if args.length != 1 || args.include?('-h')
    cmd_info_help
    return
  end

  module_name = args.shift
  mod = client.framework.modules.create(module_name);

  if mod.nil?
    print_error 'Invalid module: ' << module_name
  end

  if mod
    print_line(::Msf::Serializer::ReadableText.dump_module(mod))
    mod_opt = ::Msf::Serializer::ReadableText.dump_options(mod, '   ')
    print_line("\nModule options (#{mod.fullname}):\n\n#{mod_opt}") if mod_opt && mod_opt.length > 0
  end
end

#cmd_info_helpObject



157
158
159
160
161
162
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 157

def cmd_info_help
  print_line 'Usage: info <module>'
  print_line
  print_line 'Prints information about a post-exploitation module'
  print_line
end

#cmd_info_tabs(*args) ⇒ Object



191
192
193
194
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 191

def cmd_info_tabs(*args)
  return unless msf_loaded?
  tab_complete_postmods
end

#cmd_irb(*args) ⇒ Object

Runs the IRB scripting shell



131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 131

def cmd_irb(*args)
  expressions = []

  # Parse the command options
  @@irb_opts.parse(args) do |opt, idx, val|
    case opt
    when '-e'
      expressions << val
    when '-h'
      return cmd_irb_help
    end
  end

  session = client
  framework = client.framework

  if expressions.empty?
    print_status("Starting IRB shell")
    print_status("The 'client' variable holds the hwbridge client\n")

    Rex::Ui::Text::IrbShell.new(binding).run
  else
    expressions.each { |expression| eval(expression, binding) }
  end
end

#cmd_irb_helpObject



121
122
123
124
125
126
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 121

def cmd_irb_help
  print_line "Usage: irb"
  print_line
  print_line "Execute commands in a Ruby environment"
  print @@irb_opts.usage
end

#cmd_load(*args) ⇒ Object

Loads one or more meterpreter extensions.



316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 316

def cmd_load(*args)
  if args.length.zero?
    args.unshift("-h")
  end

  @@load_opts.parse(args) { |opt, idx, val|
    case opt
    when '-h'
      cmd_load_help
      return true
    end
  }

  # Load each of the modules
  args.each { |m|
    md = m.downcase

    if extensions.include?(md)
      print_error("The '#{md}' extension has already been loaded.")
      next
    end

    print("Loading extension #{md}...")

    begin
      # Use the remote side, then load the client-side
      #if (client.core.use(md) == true)
        client.add_extension(md) # NOTE: Doesn't work, going to use core instead
        add_extension_client(md)
      #end
    rescue
      print_line
      log_error("Failed to load extension: #{$!}")
      next
    end

    print_line("success.")
  }

  return true
end

#cmd_load_custom_methods(*args) ⇒ Object

Loads custom methods if any exist



287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 287

def cmd_load_custom_methods(*args)
  if args.length > 0
    cmd_load_custom_methods_help
    return true
  end
  res = client.get_custom_methods
  if res.has_key? 'Methods'
    cmd_load("custom_methods")
    self.shell.dispatcher_stack.each do |dispatcher|
      if dispatcher.name =~ /custom methods/i
        dispatcher.load_methods(res['Methods'])
      end
    end
    print_status("Loaded #{res['Methods'].size} method(s)")
  else
    print_status("Not supported")
  end
end

#cmd_load_custom_methods_helpObject



277
278
279
280
281
282
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 277

def cmd_load_custom_methods_help
  print_line("Usage: load_custom_methods")
  print_line
  print_line "Checks to see if there are any custom HW commands and loads as"
  print_line "interactive commands in your session."
end

#cmd_load_helpObject



306
307
308
309
310
311
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 306

def cmd_load_help
  print_line("Usage: load ext1 ext2 ext3 ...")
  print_line
  print_line "Loads a hardware extension module or modules."
  print_line @@load_opts.usage
end

#cmd_reboot(*args) ⇒ Object

Perform a device reboot



269
270
271
272
273
274
275
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 269

def cmd_reboot(*args)
  if args.length > 0
    cmd_reboot_help
    return
  end
  client.reboot
end

#cmd_reboot_helpObject



260
261
262
263
264
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 260

def cmd_reboot_help
  print_line("Reboots the device.  This command typically only works on independent devices that")
  print_line("are not attached to a laptop or other system")
  print_line
end

#cmd_reset(*args) ⇒ Object

Performs a device reset or factory reset



252
253
254
255
256
257
258
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 252

def cmd_reset(*args)
  if args.length > 0
    cmd_reset_help
    return
  end
  client.reset
end

#cmd_reset_helpObject



244
245
246
247
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 244

def cmd_reset_help
  print_line("Resets the device.  In some cases this can be used to perform a factory reset")
  print_line
end

#cmd_run(*args) ⇒ Object

Executes a script in the context of the hwbridge session.



370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 370

def cmd_run(*args)
  if args.length.zero?
    cmd_run_help
    return true
  end

  # Get the script name
  begin
    script_name = args.shift
    # First try it as a Post module if we have access to the Metasploit
    # Framework instance.  If we don't, or if no such module exists,
    # fall back to using the scripting interface.
    if msf_loaded? && mod = client.framework.modules.create(script_name)
      original_mod = mod
      reloaded_mod = client.framework.modules.reload_module(original_mod)

      unless reloaded_mod
        error = client.framework.modules.module_load_error_by_path[original_mod.file_path]
        print_error("Failed to reload module: #{error}")

        return
      end

      opts = (args + [ "SESSION=#{client.sid}" ]).join(',')
      reloaded_mod.run_simple(
        #'RunAsJob' => true,
        'LocalInput'  => shell.input,
        'LocalOutput' => shell.output,
        'OptionStr'   => opts
      )
    else
      # the rest of the arguments get passed in through the binding
      client.execute_script(script_name, args)
    end
  rescue => e
    print_error("Error in script: #{script_name}")
    elog("Error in script: #{script_name}", error: e)
  end
end

#cmd_run_helpObject



358
359
360
361
362
363
364
365
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 358

def cmd_run_help
  print_line "Usage: run <script> [arguments]"
  print_line
  print_line "Executes a ruby script or Metasploit Post module in the context of the"
  print_line "hardware bridge session.  Post modules can take arguments in var=val format."
  print_line "Example: run post/foo/bar BAZ=abcd"
  print_line
end

#cmd_run_tabs(str, words) ⇒ Object



410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 410

def cmd_run_tabs(str, words)
  tabs = []
  if !words[1] || !words[1].match(/^\//)
    begin
      if msf_loaded?
        tabs = tab_complete_postmods
      end
      [  # We can just use Meterpreters script path
        ::Msf::Sessions::HWBridge.script_base,
        ::Msf::Sessions::HWBridge.user_script_base
      ].each do |dir|
        next unless ::File.exist? dir
        tabs += ::Dir.new(dir).find_all { |e|
          path = dir + ::File::SEPARATOR + e
          ::File.file?(path) && ::File.readable?(path)
        }
      end
    rescue Exception
    end
  end
  return tabs.map { |e| e.sub(/\.rb$/, '') }
end

#cmd_sessions(*args) ⇒ Object



85
86
87
88
89
90
91
92
93
94
95
96
97
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 85

def cmd_sessions(*args)
  if args.length.zero? || args[0].to_i.zero?
    cmd_sessions_help
  elsif args[0].to_s == client.name.to_s
    print_status("Session #{client.name} is already interactive.")
  else
    print_status("Backgrounding session #{client.name}...")
    # store the next session id so that it can be referenced as soon
    # as this session is no longer interacting
    client.next_session = args[0]
    client.interacting = false
  end
end

#cmd_sessions_helpObject



77
78
79
80
81
82
83
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 77

def cmd_sessions_help
  print_line('Usage: sessions <id>')
  print_line
  print_line('Interact with a different session Id.')
  print_line('This works the same as calling this from the MSF shell: sessions -i <session id>')
  print_line
end

#cmd_specialty(*args) ⇒ Object

Get the Hardware specialty



236
237
238
239
240
241
242
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 236

def cmd_specialty(*args)
  if args.length > 0
    cmd_specialty_help
    return true
  end
  print_line client.exploit.hw_specialty.to_s
end

#cmd_specialty_helpObject



227
228
229
230
231
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 227

def cmd_specialty_help
  print_line("Usage: specialty")
  print_line
  print_line "Simple helper function to see what the devices specialty is"
end

#cmd_status(*args) ⇒ Object

Get the HW bridge devices status



205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 205

def cmd_status(*args)
  if args.length > 0
    cmd_status_help
    return true
  end
  status = client.get_status
  stats = client.get_statistics
  if status.has_key? 'operational'
    op = 'Unknown'
    op = 'Yes' if status['operational'] == 1
    op = 'No' if status['operational'] == 2
    print_status("Operational: #{op}")
  end
  print_status("Device: #{status['device_name']}") if status.key? 'device_name'
  print_status("FW Version: #{status['fw_version']}") if status.key? 'fw_version'
  print_status("HW Version: #{status['hw_version']}") if status.key? 'hw_version'
  print_status("Uptime: #{stats['uptime']} seconds") if stats.key? 'uptime'
  print_status("Packets Sent: #{stats['packet_stats']}") if stats.key? 'packet_stats'
  print_status("Last packet Sent: #{::Time.at(stats['last_request'])}") if stats.key? 'last_request'
  print_status("Voltage: #{stats['voltage']}") if stats.key? 'voltage' and not stats['voltage'] == 'not supported'
end

#cmd_status_helpObject



196
197
198
199
200
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 196

def cmd_status_help
  print_line("Usage: status")
  print_line
  print_line "Retrives the devices current status and statistics"
end

#commandsObject

List of supported commands.



46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 46

def commands
  c = {
    "?"          => "Help menu",
    "background" => "Backgrounds the current session",
    "exit"       => "Terminate the hardware bridge session",
    "help"       => "Help menu",
    "irb"        => "Drop into irb scripting mode",
    "load"       => "Load one or more meterpreter extensions",
    "run"        => "Executes a meterpreter script or Post module",
    "bgrun"      => "Executes a meterpreter script as a background thread",
    "bgkill"     => "Kills a background meterpreter script",
    "bglist"     => "Lists running background scripts",
    "sessions"   => "Quickly switch to another session",
    "status"     => "Fetch bridge status information",
    "specialty"  => "Hardware devices specialty",
    "reset"      => "Resets the device (NOTE: on some devices this is a FULL FACTORY RESET)",
    "reboot"     => "Reboots the device (usually only supported by stand-alone devices)",
    "load_custom_methods" => "Loads custom HW commands if any"
  }

  if msf_loaded?
    c["info"] = "Displays information about a Post module"
  end

  c
end

#nameObject



73
74
75
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 73

def name
  "Core"
end

#tab_complete_postmodsObject (protected)



574
575
576
577
578
579
580
581
582
583
584
585
586
# File 'lib/rex/post/hwbridge/ui/console/command_dispatcher/core.rb', line 574

def tab_complete_postmods
  tabs = client.framework.modules.post.map { |name, klass|
    mod = client.framework.modules.post.create(name)
    if mod && mod.session_compatible?(client)
      mod.fullname.dup
    else
      nil
    end
  }

  # nils confuse readline
  tabs.compact
end