Class: Msf::Ui::Console::CommandDispatcher::Nop

Inherits:
Object
  • Object
show all
Includes:
ModuleCommandDispatcher
Defined in:
lib/msf/ui/console/command_dispatcher/nop.rb

Overview

NOP module command dispatcher.

Constant Summary collapse

@@generate_opts = 
Rex::Parser::Arguments.new(
"-b" => [ true,  "The list of characters to avoid: '\\x00\\xff'"  ],
"-h" => [ false, "Help banner."                                   ],
"-s" => [ true,  "The comma separated list of registers to save." ],
"-t" => [ true,  "The output type: ruby, perl, c, or raw."        ])

Instance Attribute Summary

Attributes included from Msf::Ui::Console::CommandDispatcher

#driver

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

#shell, #tab_complete_items

Instance Method Summary collapse

Methods included from ModuleCommandDispatcher

#check_multiple, #check_progress, #check_show_progress, #check_simple, #cmd_check, #cmd_check_help, #cmd_reload, #cmd_reload_help, #mod, #mod=, #reload, #report_vuln

Methods included from ModuleArgumentParsing

#append_datastore_option, #parse_check_opts, #parse_exploit_opts, #parse_opts, #parse_run_opts, #print_module_run_or_check_usage, #quote_whitespaced_value, #resembles_datastore_assignment?, #resembles_rhost_value?

Methods included from Msf::Ui::Console::CommandDispatcher

#active_module, #active_module=, #active_session, #active_session=, #build_range_array, #docs_dir, #framework, #initialize, #load_config, #log_error, #remove_lines

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

#cmd_help, #cmd_help_help, #cmd_help_tabs, #deprecated_cmd, #deprecated_commands, #deprecated_help, #docs_dir, #help_to_s, included, #initialize, #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

Instance Method Details

#cmd_generate(*args) ⇒ Object

Generates a NOP sled.



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# File 'lib/msf/ui/console/command_dispatcher/nop.rb', line 42

def cmd_generate(*args)

  # No arguments?  Tell them how to use it.
  if (args.length == 0)
    args << "-h"
  end

  # Parse the arguments
  badchars = nil
  saveregs = nil
  type     = "ruby"
  length   = 200

  @@generate_opts.parse(args) { |opt, idx, val|
    case opt
      when nil
        length = val.to_i
      when '-b'
        badchars = Rex::Text.dehex(val)
when "-s", "-c"  # 'c' is deprecated; remove later
saveregs = val.split(/,\s?/)
        saveregs = val.split(/,\s?/)
      when '-t'
        type = val
      when '-h'
        print(
          "Usage: generate [options] length\n\n" +
          "Generates a NOP sled of a given length.\n" +
          @@generate_opts.usage)
        return false
    end
  }

  # Generate the sled
  begin
    sled = mod.generate_simple(
      length,
      'BadChars'      => badchars,
      'SaveRegisters' => saveregs,
      'Format'        => type)
  rescue
    log_error("Sled generation failed: #{$!}.")
    return false
  end

  # Display generated sled
  print(sled)

  return true
end

#commands ⇒ Object

Returns the hash of supported commands.



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# File 'lib/msf/ui/console/command_dispatcher/nop.rb', line 26

def commands
  super.update({
    "generate" => "Generates a NOP sled",
  })
end

#name ⇒ Object

Returns the name of the command dispatcher.



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# File 'lib/msf/ui/console/command_dispatcher/nop.rb', line 35

def name
  "Nop"
end