Class: Msf::Module
- Inherits:
-
Object
- Object
- Msf::Module
- Extended by:
- Framework::Offspring
- Includes:
- Alert, Arch, Auth, Author, Compatibility, DataStore, FullName, ModuleInfo, ModuleStore, Network, Options, Privileged, Ranking, Reliability, SideEffects, Stability, Type, UI, UUID
- Defined in:
- lib/msf/core/module.rb
Overview
The module base class is responsible for providing the common interface that is used to interact with modules at the most basic levels, such as by inspecting a given module's attributes (name, description, version, authors, etc) and by managing the module's data store.
Defined Under Namespace
Modules: Alert, Arch, Auth, Author, Compatibility, DataStore, Deprecated, External, Failure, FullName, HasActions, ModuleInfo, ModuleStore, Network, Options, Privileged, Ranking, Reliability, SideEffects, Stability, Type, UI, UUID Classes: AuxiliaryAction, Platform, PlatformList, Reference, SiteReference, Target
Constant Summary collapse
- REPLICANT_EXTENSION_DS_KEY =
The key where a comma-separated list of Ruby module names will live in the datastore, consumed by #replicant to allow clean override of MSF module methods.
'ReplicantExtensions'
Constants included from ModuleInfo
Class Attribute Summary collapse
-
.file_path ⇒ Object
The path from which the module was loaded.
-
.orig_cls ⇒ Object
This attribute holds the non-duplicated copy of the module implementation.
Instance Attribute Summary collapse
-
#error ⇒ Object
The last exception to occur using this module.
-
#job_id ⇒ Object
The job identifier that this module is running as, if any.
-
#license ⇒ Object
The license under which this module is provided.
-
#platform ⇒ Object
The array of zero or more platforms.
-
#privileged ⇒ Object
writeonly
protected
:nodoc:.
-
#references ⇒ Object
The reference count for the module.
-
#user_data ⇒ Object
An opaque bag of data to attach to a module.
Attributes included from UUID
Attributes included from Rex::Ui::Subscriber::Input
Attributes included from Rex::Ui::Subscriber::Output
Attributes included from Privileged
Attributes included from Options
Attributes included from ModuleStore
Attributes included from ModuleInfo
Attributes included from FullName
Attributes included from DataStore
Attributes included from Author
Attributes included from Arch
Attributes included from Alert
#alerts, #you_have_been_warned
Class Method Summary collapse
-
.cached? ⇒ Boolean
Returns false since this is the real module.
Instance Method Summary collapse
- #black_listed_auth_filenames ⇒ Object
-
#debugging? ⇒ Boolean
Returns true if this module is being debugged.
- #default_cred? ⇒ Boolean
-
#fail_with(reason, msg = nil) ⇒ void
Raises a RuntimeError failure message.
-
#file_path ⇒ Object
The path to the file in which the module can be loaded from.
-
#framework ⇒ Object
Returns the class reference to the framework.
- #has_check? ⇒ Boolean
-
#initialize(info = {}) ⇒ Module
constructor
Creates an instance of an abstract module using the supplied information hash.
-
#orig_cls ⇒ Object
Returns the unduplicated class associated with this module.
-
#owner ⇒ Object
Returns the username that instantiated this module, this tries a handful of methods to determine what actual user ran this module.
-
#perform_extensions ⇒ void
Extends self with the constant list in the datastore.
-
#platform?(what) ⇒ Boolean
Checks to see if this module is compatible with the supplied platform.
-
#platform_to_s ⇒ Object
Return a comma separated list of supported platforms, if any.
- #post_auth? ⇒ Boolean
-
#register_extensions(*rb_modules) ⇒ void
@param One or more Ruby constants.
-
#register_parent(ref) ⇒ Object
Scans the parent module reference to populate additional information.
-
#replicant ⇒ Object
Creates a fresh copy of an instantiated module.
- #required_cred_options ⇒ Object
-
#set_defaults ⇒ Object
protected
Sets the modules unsupplied info fields to their default values.
-
#workspace ⇒ Object
Returns the current workspace.
Methods included from Reliability
#reliability, #reliability_to_s
Methods included from Stability
Methods included from SideEffects
#side_effects, #side_effects_to_s
Methods included from UUID
Methods included from UI
Methods included from UI::Message
#print_error, #print_good, #print_prefix, #print_status, #print_warning
Methods included from UI::Message::Verbose
#vprint_error, #vprint_good, #vprint_status, #vprint_warning
Methods included from UI::Line
#print_line, #print_line_prefix
Methods included from UI::Line::Verbose
Methods included from Rex::Ui::Subscriber
Methods included from Rex::Ui::Subscriber::Input
Methods included from Rex::Ui::Subscriber::Output
#flush, #print, #print_blank_line, #print_error, #print_good, #print_line, #print_status, #print_warning
Methods included from Type
#auxiliary?, #encoder?, #evasion?, #exploit?, #nop?, #payload?, #post?, #type
Methods included from Ranking
Methods included from Privileged
Methods included from Options
#deregister_options, #register_advanced_options, #register_evasion_options, #register_options, #validate
Methods included from Network
#comm, #support_ipv6?, #target_host, #target_port
Methods included from ModuleStore
Methods included from ModuleInfo
#alias, #description, #disclosure_date, #info_fixups, #merge_check_key, #merge_info, #merge_info_advanced_options, #merge_info_alias, #merge_info_description, #merge_info_evasion_options, #merge_info_name, #merge_info_options, #merge_info_string, #merge_info_version, #name, #notes, #update_info
Methods included from FullName
#aliases, #fullname, #promptname, #realname, #refname, #shortname
Methods included from DataStore
#import_defaults, #import_target_defaults, #share_datastore
Methods included from Compatibility
#compat, #compatible?, #init_compat
Methods included from Author
Methods included from Auth
Methods included from Arch
#arch?, #arch_to_s, #each_arch
Methods included from Alert
#add_alert, #add_error, #add_warning, #alert_user, #errors, #get_alerts, included, #is_usable?, #warnings
Constructor Details
#initialize(info = {}) ⇒ Module
Creates an instance of an abstract module using the supplied information hash.
100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 |
# File 'lib/msf/core/module.rb', line 100 def initialize(info = {}) @module_info_copy = info.dup self.module_info = info generate_uuid set_defaults # Initialize module compatibility hashes init_compat # Fixup module fields as needed info_fixups # Transform some of the fields to arrays as necessary self. = Msf::Author.transform(module_info['Author']) self.arch = Rex::Transformer.transform(module_info['Arch'], Array, [ String ], 'Arch') self.platform = PlatformList.transform(module_info['Platform']) self.references = Rex::Transformer.transform(module_info['References'], Array, [ SiteReference, Reference ], 'Ref') # Create and initialize the option container for this module self. = Msf::OptionContainer.new self..(info['Options'], self.class) self..(info['AdvancedOptions'], self.class) self..(info['EvasionOptions'], self.class) # Create and initialize the data store for this module self.datastore = ModuleDataStore.new(self) # Import default options into the datastore import_defaults self.privileged = module_info['Privileged'] || false self.license = module_info['License'] || MSF_LICENSE # Allow all modules to track their current workspace ( [ OptString.new('WORKSPACE', [ false, "Specify the workspace for this module" ]), OptBool.new('VERBOSE', [ false, 'Enable detailed status messages', false ]) ], Msf::Module) end |
Class Attribute Details
.file_path ⇒ Object
The path from which the module was loaded.
86 87 88 |
# File 'lib/msf/core/module.rb', line 86 def file_path @file_path end |
.orig_cls ⇒ Object
This attribute holds the non-duplicated copy of the module implementation. This attribute is used for reloading purposes so that it can be re-duplicated.
81 82 83 |
# File 'lib/msf/core/module.rb', line 81 def orig_cls @orig_cls end |
Instance Attribute Details
#error ⇒ Object
The last exception to occur using this module
380 381 382 |
# File 'lib/msf/core/module.rb', line 380 def error @error end |
#job_id ⇒ Object
The job identifier that this module is running as, if any.
375 376 377 |
# File 'lib/msf/core/module.rb', line 375 def job_id @job_id end |
#license ⇒ Object
The license under which this module is provided.
370 371 372 |
# File 'lib/msf/core/module.rb', line 370 def license @license end |
#platform ⇒ Object
The array of zero or more platforms.
360 361 362 |
# File 'lib/msf/core/module.rb', line 360 def platform @platform end |
#privileged=(value) ⇒ Object (writeonly, protected)
:nodoc:
412 413 414 |
# File 'lib/msf/core/module.rb', line 412 def privileged=(value) @privileged = value end |
#references ⇒ Object
The reference count for the module.
365 366 367 |
# File 'lib/msf/core/module.rb', line 365 def references @references end |
#user_data ⇒ Object
An opaque bag of data to attach to a module. This is useful for attaching some piece of identifying info on to a module before calling Simple::Exploit#exploit_simple or Simple::Auxiliary#run_simple for correlating where modules came from.
388 389 390 |
# File 'lib/msf/core/module.rb', line 388 def user_data @user_data end |
Class Method Details
.cached? ⇒ Boolean
Returns false since this is the real module
294 295 296 |
# File 'lib/msf/core/module.rb', line 294 def self.cached? false end |
Instance Method Details
#black_listed_auth_filenames ⇒ Object
315 316 317 318 319 320 321 322 |
# File 'lib/msf/core/module.rb', line 315 def black_listed_auth_filenames @black_listed_auth_filenames ||= lambda { [ 'fileformat', 'browser' ] }.call end |
#debugging? ⇒ Boolean
Returns true if this module is being debugged.
262 263 264 |
# File 'lib/msf/core/module.rb', line 262 def debugging? datastore['DEBUG'] end |
#default_cred? ⇒ Boolean
344 345 346 347 348 349 350 351 352 353 354 355 |
# File 'lib/msf/core/module.rb', line 344 def default_cred? return false unless post_auth? cred_opts_with_default = .select { |name, opt| case opt.type when 'string' return true unless opt.default.blank? end } false end |
#fail_with(reason, msg = nil) ⇒ void
If you are writing an exploit, you don't use this API. Instead, please refer to the API documentation from lib/msf/core/exploit.rb.
This method returns an undefined value.
Raises a RuntimeError failure message. This is meant to be used for all non-exploits, and allows specific classes to override.
280 281 282 |
# File 'lib/msf/core/module.rb', line 280 def fail_with(reason, msg=nil) raise RuntimeError, "#{reason.to_s}: #{msg}" end |
#file_path ⇒ Object
The path to the file in which the module can be loaded from.
201 202 203 |
# File 'lib/msf/core/module.rb', line 201 def file_path self.class.file_path end |
#framework ⇒ Object
Returns the class reference to the framework
92 93 94 |
# File 'lib/msf/core/module.rb', line 92 def framework self.class.framework end |
#has_check? ⇒ Boolean
144 145 146 |
# File 'lib/msf/core/module.rb', line 144 def has_check? respond_to?(:check) end |
#orig_cls ⇒ Object
Returns the unduplicated class associated with this module.
194 195 196 |
# File 'lib/msf/core/module.rb', line 194 def orig_cls self.class.orig_cls end |
#owner ⇒ Object
Returns the username that instantiated this module, this tries a handful of methods to determine what actual user ran this module.
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 |
# File 'lib/msf/core/module.rb', line 217 def owner # Generic method to configure a module owner username = self.datastore['MODULE_OWNER'].to_s.strip # Specific method used by the commercial products if username.empty? username = self.datastore['PROUSER'].to_s.strip end # Fallback when neither prior method is available, common for msfconsole if username.empty? username = (ENV['LOGNAME'] || ENV['USERNAME'] || ENV['USER'] || "unknown").to_s.strip end username end |
#perform_extensions ⇒ void
This method returns an undefined value.
Extends self with the constant list in the datastore
170 171 172 173 174 175 176 177 178 179 180 |
# File 'lib/msf/core/module.rb', line 170 def perform_extensions if datastore[REPLICANT_EXTENSION_DS_KEY].present? if datastore[REPLICANT_EXTENSION_DS_KEY].respond_to?(:each) datastore[REPLICANT_EXTENSION_DS_KEY].each do |const| self.extend(const) end else fail "Invalid settings in datastore at key #{REPLICANT_EXTENSION_DS_KEY}" end end end |
#platform?(what) ⇒ Boolean
Checks to see if this module is compatible with the supplied platform
255 256 257 |
# File 'lib/msf/core/module.rb', line 255 def platform?(what) (platform & what).empty? == false end |
#platform_to_s ⇒ Object
Return a comma separated list of supported platforms, if any.
248 249 250 |
# File 'lib/msf/core/module.rb', line 248 def platform_to_s platform.all? ? "All" : platform.names.join(", ") end |
#post_auth? ⇒ Boolean
324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 |
# File 'lib/msf/core/module.rb', line 324 def post_auth? if self.kind_of?(Msf::Auxiliary::AuthBrute) return true else # Some modules will never be post auth, so let's not waste our time # determining it and create more potential false positives. # If these modules happen to be post auth for some reason, then we it # should manually override the post_auth? method as true. directory_name = self.fullname.split('/')[0..-2] black_listed_auth_filenames.each do |black_listed_name| return false if directory_name.include?(black_listed_name) end # Some modules create their own username and password datastore # options, not relying on the AuthBrute mixin. In that case we # just have to go through the options and try to identify them. !.empty? end end |
#register_extensions(*rb_modules) ⇒ void
This method returns an undefined value.
@param One or more Ruby constants
184 185 186 187 188 189 |
# File 'lib/msf/core/module.rb', line 184 def register_extensions(*rb_modules) datastore[REPLICANT_EXTENSION_DS_KEY] = [] unless datastore[REPLICANT_EXTENSION_DS_KEY].present? rb_modules.each do |rb_mod| datastore[REPLICANT_EXTENSION_DS_KEY] << rb_mod unless datastore[REPLICANT_EXTENSION_DS_KEY].include? rb_mod end end |
#register_parent(ref) ⇒ Object
Scans the parent module reference to populate additional information. This is used to inherit common settings (owner, workspace, parent uuid, etc).
238 239 240 241 242 243 |
# File 'lib/msf/core/module.rb', line 238 def register_parent(ref) self.datastore['WORKSPACE'] = (ref.datastore['WORKSPACE'] ? ref.datastore['WORKSPACE'].dup : nil) self.datastore['PROUSER'] = (ref.datastore['PROUSER'] ? ref.datastore['PROUSER'].dup : nil) self.datastore['MODULE_OWNER'] = ref.owner.dup self.datastore['ParentUUID'] = ref.uuid.dup end |
#replicant ⇒ Object
Creates a fresh copy of an instantiated module
151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 |
# File 'lib/msf/core/module.rb', line 151 def replicant obj = self.clone self.instance_variables.each { |k| v = instance_variable_get(k) v = v.dup rescue v obj.instance_variable_set(k, v) } obj.datastore = self.datastore.copy obj.user_input = self.user_input obj.user_output = self.user_output obj.module_store = self.module_store.clone obj.perform_extensions obj end |
#required_cred_options ⇒ Object
298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 |
# File 'lib/msf/core/module.rb', line 298 def @required_cred_options ||= lambda { self..select { |name, opt| ( opt.type?('string') && opt.required && (opt.name.match(/user(name)*$/i) || name.match(/pass(word)*$/i)) ) || ( opt.type?('bool') && opt.required && opt.name.match(/^allow_guest$/i) ) } }.call end |
#set_defaults ⇒ Object (protected)
Sets the modules unsupplied info fields to their default values.
395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 |
# File 'lib/msf/core/module.rb', line 395 def set_defaults self.module_info = { 'Name' => 'No module name', 'Description' => 'No module description', 'Version' => '0', 'Author' => nil, 'Arch' => nil, # No architectures by default. 'Platform' => [], # No platforms by default. 'Ref' => nil, 'Privileged' => false, 'License' => MSF_LICENSE, 'Notes' => {} }.update(self.module_info) self.module_store = {} end |
#workspace ⇒ Object
Returns the current workspace
208 209 210 211 |
# File 'lib/msf/core/module.rb', line 208 def workspace self.datastore['WORKSPACE'] || (framework.db and framework.db.active and framework.db.workspace and framework.db.workspace.name) end |