Fix edgecase in Meterpreter job persistence

lib/msf/base/simple/module.rb

@@ -18,10 +18,14 @@ module Module
   def _import_extra_options(opts)
     # If options were supplied, import them into the payload's
     # datastore
-    if (opts['Options'])
-      self.datastore.import_options_from_hash(opts['Options'])
-    elsif (opts['OptionStr'])
-      self.datastore.import_options_from_s(opts['OptionStr'])
+    if (value = opts['Options'])
+      if value.is_a?(String)
+        self.datastore.import_options_from_s(value)
+      else
+        self.datastore.import_options_from_hash(value)
+      end
+    elsif (value = opts['OptionStr'])
+      self.datastore.import_options_from_s(value)
     end
   end
 

lib/msf/core/opt_meterpreter_debug_logging.rb

@@ -39,9 +39,9 @@ def self.parse_logging_options(value)
       result = {}
       errors = []
 
-      return result if value.nil?
+      value = value.to_s.strip
+      return result if value.empty?
 
-      value = value.strip
       # Match 'rpath:./file', 'rpath:/file', and drive letters e.g. 'rpath:C:/file'
       rpath_regex = %r{^rpath:((\.?/\p{ASCII}+)|(\p{ASCII}:/\p{ASCII}+))}i
 

lib/msf/ui/console/command_dispatcher/jobs.rb

@@ -257,7 +257,7 @@ def add_persist_job(job_id)
 
               payload_opts = {
                 'Payload'        => payload.refname,
-                'Options'        => payload.datastore,
+                'Options'        => payload.datastore.to_h,
                 'RunAsJob'       => true
               }
 

lib/msf/ui/console/driver.rb

@@ -206,9 +206,23 @@ def initialize(prompt = DefaultPrompt, prompt_char = DefaultPromptChar, opts = {
     if restore_handlers
       print_status("Starting persistent handler(s)...")
 
-      restore_handlers.each do |handler_opts|
+      restore_handlers.each.with_index do |handler_opts, index|
         handler = framework.modules.create(handler_opts['mod_name'])
-        handler.exploit_simple(handler_opts['mod_options'])
+        handler.init_ui(self.input, self.output)
+        replicant_handler = nil
+        handler.exploit_simple(handler_opts['mod_options']) do |yielded_replicant_handler|
+          replicant_handler = yielded_replicant_handler
+        end
+
+        if replicant_handler.nil? || replicant_handler.error
+          print_status("Failed to start persistent payload handler ##{index} (#{handler_opts['mod_name']})")
+          next
+        end
+
+        if replicant_handler.error.nil?
+          job_id = handler.job_id
+          print_status "Persistent payload handler started as Job #{job_id}"
+        end
       end
     end
 

spec/lib/msf/core/opt_meterpreter_debug_logging_spec.rb

@@ -7,7 +7,9 @@
     { value: 'rpath:C:/log.txt', normalized: 'rpath:C:/log.txt' },
     { value: 'rpath:/tmp/log.txt', normalized: 'rpath:/tmp/log.txt' },
     { value: 'rpath:./log.log', normalized: 'rpath:./log.log' },
-    { value: ' rpath:./log.log ', normalized: ' rpath:./log.log ' }
+    { value: ' rpath:./log.log ', normalized: ' rpath:./log.log ' },
+    { value: '', normalized: '' },
+    { value: '  ', normalized: '  ' }
   ]
   invalid_values = [
     { value: 'rpath', normalized: 'rpath' },
@@ -17,4 +19,18 @@
   ]
 
   it_behaves_like 'an option', valid_values, invalid_values, 'meterpreterdebuglogging'
+
+  describe '.parse_logging_options' do
+    [
+      { value: nil, expected: {} },
+      { value: '', expected: {} },
+      { value: '  ', expected: {} },
+      { value: 'rpath:./file', expected: { rpath: './file' } },
+      { value: '  rpath:C:/file  ', expected: { rpath: 'C:/file' } },
+    ].each do |test|
+      it "parses #{test[:value]} as #{test[:expected]}" do
+        expect(described_class.parse_logging_options(test[:value])).to eq test[:expected]
+      end
+    end
+  end
 end