Class: Msf::FeatureManager

Inherits:
Object
  • Object
show all
Includes:
Singleton
Defined in:
lib/msf/core/feature_manager.rb

Overview

The feature manager is responsible for managing feature flags that can change characteristics of framework. Each feature will have a default value. The user can choose to override this default value if they wish.

Constant Summary collapse

CONFIG_KEY =
'framework/features'
WRAPPED_TABLES =
'wrapped_tables'
DATASTORE_FALLBACKS =
'datastore_fallbacks'
FULLY_INTERACTIVE_SHELLS =
'fully_interactive_shells'
MANAGER_COMMANDS =
'manager_commands'
METASPLOIT_PAYLOAD_WARNINGS =
'metasploit_payload_warnings'
DEFER_MODULE_LOADS =
'defer_module_loads'
DNS_FEATURE =
'dns_feature'
HIERARCHICAL_SEARCH_TABLE =
'hierarchical_search_table'
SMB_SESSION_TYPE =
'smb_session_type'
POSTGRESQL_SESSION_TYPE =
'postgresql_session_type'
MYSQL_SESSION_TYPE =
'mysql_session_type'
MSSQL_SESSION_TYPE =
'mssql_session_type'
DEFAULTS =
[
  {
    name: WRAPPED_TABLES,
    description: 'When enabled Metasploit will wordwrap all tables to fit into the available terminal width',
    default_value: true,
    developer_notes: 'This functionality is enabled by default now, and the feature flag can be removed now'
  }.freeze,
  {
    name: FULLY_INTERACTIVE_SHELLS,
    description: 'When enabled you will have the option to drop into a fully interactive shell from within meterpreter',
    default_value: false,
    developer_notes: 'Development paused as the interaction time feels clunky, especially for slow transport layers like HTTP on Mettle. Would require changes to the transport sleep/priority logic'
  }.freeze,
  {
    name: MANAGER_COMMANDS,
    description: 'When enabled you will have access to manager commands such as _servicemanager and _historymanager',
    default_value: false,
    developer_notes: 'Useful for developers, likely not to ever be useful for an average user'
  }.freeze,
  {
    name: DATASTORE_FALLBACKS,
    description: 'When enabled you can consistently set username across modules, instead of setting SMBUser/FTPUser/BIND_DN/etc',
    requires_restart: true,
    default_value: true,
    developer_notes: 'This functionality is enabled by default now, and the feature flag can be removed now'
  }.freeze,
  {
    name: METASPLOIT_PAYLOAD_WARNINGS,
    description: 'When enabled Metasploit will output warnings about missing Metasploit payloads, for instance if they were removed by antivirus etc',
    requires_restart: true,
    default_value: true,
    developer_notes: 'Planned for default enablement in: Metasploit 6.4.x'
  }.freeze,
  {
    name: DEFER_MODULE_LOADS,
    description: 'When enabled will not eagerly load all modules',
    requires_restart: true,
    default_value: false,
    developer_notes: 'Planned for default enablement in: Metasploit 6.4.x'
  }.freeze,
  {
    name: SMB_SESSION_TYPE,
    description: 'When enabled will allow for the creation/use of smb sessions',
    requires_restart: true,
    default_value: false
  }.freeze,
  {
    name: POSTGRESQL_SESSION_TYPE,
    description: 'When enabled will allow for the creation/use of PostgreSQL sessions',
    requires_restart: true,
    default_value: false,
  }.freeze,
  {
    name: MYSQL_SESSION_TYPE,
    description: 'When enabled will allow for the creation/use of MySQL sessions',
    requires_restart: true,
    default_value: false
  }.freeze,
  {
    name: MSSQL_SESSION_TYPE,
    description: 'When enabled will allow for the creation/use of mssql sessions',
    requires_restart: true,
    default_value: false
  }.freeze,
  {
    name: DNS_FEATURE,
    description: 'When enabled, allows configuration of DNS resolution behaviour in Metasploit',
    requires_restart: false,
    default_value: false,
    developer_notes: 'Planned for default enablement in: Metasploit 6.4.x'
  }.freeze,
  {
    name: HIERARCHICAL_SEARCH_TABLE,
    description: 'When enabled, the search table is enhanced to show details on module actions and targets',
    requires_restart: false,
    default_value: false,
    developer_notes: 'Planned for default enablement in: Metasploit 6.4.x'
  }.freeze
].freeze

Instance Method Summary collapse

Constructor Details

#initializeFeatureManager

Initializes the feature manager.



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# File 'lib/msf/core/feature_manager.rb', line 112

def initialize
  @flag_lookup = DEFAULTS.each_with_object({}) do |feature, acc|
    if feature[:name] == WRAPPED_TABLES
      if feature[:default_value] == true
        Rex::Text::Table.wrap_tables!
      else
        Rex::Text::Table.unwrap_tables!
      end
    end

    key = feature[:name]
    acc[key] = feature.dup
  end
end

Instance Method Details

#allObject



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# File 'lib/msf/core/feature_manager.rb', line 127

def all
  @flag_lookup.values.map do |feature|
    feature.slice(:name, :description).merge(enabled: enabled?(feature[:name]))
  end
end

#enabled?(name) ⇒ TrueClass, FalseClass

Returns True if the flag is be enabled, false otherwise.

Parameters:

  • name (String)

    The feature name

Returns:

  • (TrueClass, FalseClass)

    True if the flag is be enabled, false otherwise



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# File 'lib/msf/core/feature_manager.rb', line 135

def enabled?(name)
  return false unless @flag_lookup[name]

  feature = @flag_lookup[name]
  feature.key?(:user_preference) ? feature[:user_preference] : feature[:default_value]
end

#exists?(name) ⇒ Boolean

Returns:

  • (Boolean)


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# File 'lib/msf/core/feature_manager.rb', line 150

def exists?(name)
  @flag_lookup.key?(name)
end

#load_configObject



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# File 'lib/msf/core/feature_manager.rb', line 172

def load_config
  conf = Msf::Config.load
  conf.fetch(CONFIG_KEY, {}).each do |name, value|
    set(name, value == 'true')
  end
end

#namesObject



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# File 'lib/msf/core/feature_manager.rb', line 154

def names
  all.map { |feature| feature[:name] }
end

#requires_restart?(name) ⇒ TrueClass, FalseClass

Returns True if the flag requires a console restart to work effectively.

Parameters:

  • name (String)

    The feature name

Returns:

  • (TrueClass, FalseClass)

    True if the flag requires a console restart to work effectively



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# File 'lib/msf/core/feature_manager.rb', line 144

def requires_restart?(name)
  return false unless @flag_lookup[name]

  @flag_lookup[name][:requires_restart] == true
end

#save_configObject



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# File 'lib/msf/core/feature_manager.rb', line 179

def save_config
  # Note, we intentionally omit features that have not explicitly been set by the user.
  config = Msf::Config.load
  old_config = config.fetch(CONFIG_KEY, {})
  new_config = @flag_lookup.values.each_with_object(old_config) do |feature, config|
    next unless feature.key?(:user_preference)

    config.merge!(feature[:name] => feature[:user_preference].to_s)
  end

  Msf::Config.save(CONFIG_KEY => new_config)
end

#set(name, value) ⇒ Object



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# File 'lib/msf/core/feature_manager.rb', line 158

def set(name, value)
  return false unless @flag_lookup[name]

  @flag_lookup[name][:user_preference] = value

  if name == WRAPPED_TABLES
    if value
      Rex::Text::Table.wrap_tables!
    else
      Rex::Text::Table.unwrap_tables!
    end
  end
end