fix rapid7#8199, check extapi for dependencies

Author: timwr

lib/rex/post/meterpreter/ui/console/command_dispatcher.rb

@@ -49,6 +49,23 @@ def client
     shell.client
   end
 
+  #
+  # Returns the commands that meet the requirements
+  #
+  def check_commands(all, reqs=nil)
+    all.delete_if do |cmd, _desc|
+      del = false
+      reqs[cmd].each do |req|
+        next if client.commands.include? req
+        del = true
+        break
+      end
+      del
+    end
+
+    all
+  end
+
   #
   # Returns true if the client has a framework object.
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/android.rb

@@ -36,7 +36,6 @@ def commands
       'set_audio_mode'    => 'Set Ringer Mode',
       'wakelock'          => 'Enable/Disable Wakelock',
     }
-
     reqs = {
       'dump_sms'         => ['android_dump_sms'],
       'dump_contacts'    => ['android_dump_contacts'],
@@ -53,11 +52,7 @@ def commands
       'set_audio_mode'   => ['android_set_audio_mode'],
       'wakelock'         => ['android_wakelock'],
     }
-
-    # Ensure any requirements of the command are met
-    all.delete_if do |cmd, _desc|
-      reqs[cmd].any? { |req| !client.commands.include?(req) }
-    end
+    check_commands(all, reqs)
   end
 
   def interval_collect_usage

lib/rex/post/meterpreter/ui/console/command_dispatcher/extapi/adsi.rb

@@ -25,14 +25,23 @@ class Console::CommandDispatcher::Extapi::Adsi
   # List of supported commands.
   #
   def commands
-    {
+    all = {
       'adsi_user_enum'              => 'Enumerate all users on the specified domain.',
       'adsi_group_enum'             => 'Enumerate all groups on the specified domain.',
       'adsi_nested_group_user_enum' => 'Recursively enumerate users who are effectively members of the group specified.',
       'adsi_computer_enum'          => 'Enumerate all computers on the specified domain.',
       'adsi_dc_enum'                => 'Enumerate all domain controllers on the specified domain.',
       'adsi_domain_query'           => 'Enumerate all objects on the specified domain that match a filter.'
     }
+    reqs = {
+      "adsi_user_enum"              => [ "extapi_adsi_domain_query" ],
+      "adsi_group_enum"             => [ "extapi_adsi_domain_query" ],
+      "adsi_nested_group_user_enum" => [ "extapi_adsi_domain_query" ],
+      "adsi_computer_enum"          => [ "extapi_adsi_domain_query" ],
+      "adsi_dc_enum"                => [ "extapi_adsi_domain_query" ],
+      "adsi_domain_query"           => [ "extapi_adsi_domain_query" ],
+    }
+    check_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/extapi/clipboard.rb

@@ -20,7 +20,7 @@ class Console::CommandDispatcher::Extapi::Clipboard
   # List of supported commands.
   #
   def commands
-    {
+    all = {
       "clipboard_get_data"       => "Read the target's current clipboard (text, files, images)",
       "clipboard_set_text"       => "Write text to the target's clipboard",
       "clipboard_monitor_start"  => "Start the clipboard monitor",
@@ -30,6 +30,17 @@ def commands
       "clipboard_monitor_purge"  => "Delete all captured cilpboard content without dumping it",
       "clipboard_monitor_stop"   => "Stop the clipboard monitor"
     }
+    reqs = {
+      "clipboard_get_data"       => [ "extapi_clipboard_get_data" ],
+      "clipboard_set_text"       => [ "extapi_clipboard_set_data" ],
+      "clipboard_monitor_start"  => [ "extapi_clipboard_monitor_start" ],
+      "clipboard_monitor_pause"  => [ "extapi_clipboard_monitor_pause" ],
+      "clipboard_monitor_resume" => [ "extapi_clipboard_monitor_resume" ],
+      "clipboard_monitor_dump"   => [ "extapi_clipboard_monitor_dump" ],
+      "clipboard_monitor_purge"  => [ "extapi_clipboard_monitor_purge" ],
+      "clipboard_monitor_stop"   => [ "extapi_clipboard_monitor_stop" ],
+    }
+    check_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/extapi/service.rb

@@ -21,11 +21,17 @@ class Console::CommandDispatcher::Extapi::Service
   # List of supported commands.
   #
   def commands
-    {
+    all = {
       "service_enum"    => "Enumerate all registered Windows services",
       "service_query"   => "Query more detail about a specific Windows service",
       "service_control" => "Control a single service (start/pause/resume/stop/restart)"
     }
+    reqs = {
+      "service_enum"    => [ "extapi_service_enum" ],
+      "service_query"   => [ "extapi_service_query" ],
+      "service_control" => [ "extapi_service_control" ],
+    }
+    check_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/extapi/window.rb

@@ -21,9 +21,13 @@ class Console::CommandDispatcher::Extapi::Window
   # List of supported commands.
   #
   def commands
-    {
+    all = {
       "window_enum" => "Enumerate all current open windows"
     }
+    reqs = {
+      "window_enum" => [ "extapi_window_enum" ],
+    }
+    check_commands(all, reqs)
   end
 
   #

lib/rex/post/meterpreter/ui/console/command_dispatcher/extapi/wmi.rb

@@ -25,9 +25,13 @@ class Console::CommandDispatcher::Extapi::Wmi
   # List of supported commands.
   #
   def commands
-    {
-      "wmi_query" => "Perform a generic WMI query and return the results"
+    all = {
+      "wmi_query" => "Perform a generic WMI query and return the results",
     }
+    reqs = {
+      "wmi_query" => [ "extapi_wmi_query" ],
+    }
+    check_commands(all, reqs)
   end
 
   #