rapid7/metasploit-framework

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modules/post/windows/manage/archmigrate.rb

Summary

Maintainability
C
1 day
Test Coverage

Method do_migrate has a Cognitive Complexity of 22 (exceeds 5 allowed). Consider refactoring.
Open

  def do_migrate
    if check_32_on_64
      print_status('The meterpreter is not the same architecture as the OS! Upgrading!')
      newproc = datastore['EXE']
      if exist?(newproc)
Severity: Minor
Found in modules/post/windows/manage/archmigrate.rb - About 3 hrs to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Method do_migrate has 36 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def do_migrate
    if check_32_on_64
      print_status('The meterpreter is not the same architecture as the OS! Upgrading!')
      newproc = datastore['EXE']
      if exist?(newproc)
Severity: Minor
Found in modules/post/windows/manage/archmigrate.rb - About 1 hr to fix

    Method initialize has 34 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def initialize(info = {})
        super(
          update_info(
            info,
            'Name' => 'Architecture Migrate',
    Severity: Minor
    Found in modules/post/windows/manage/archmigrate.rb - About 1 hr to fix

      Avoid deeply nested control flow statements.
      Open

                  if pid == session.sys.process.getpid
                    print_good('Success!')
                  else
                    print_error('Migration failed!')
                  end
      Severity: Major
      Found in modules/post/windows/manage/archmigrate.rb - About 45 mins to fix

        Method run has a Cognitive Complexity of 6 (exceeds 5 allowed). Consider refactoring.
        Open

          def run
            if datastore['IGNORE_SYSTEM']
              do_migrate
            elsif !datastore['IGNORE_SYSTEM'] && is_system?
              print_error('You are running as SYSTEM! Aborting migration.')
        Severity: Minor
        Found in modules/post/windows/manage/archmigrate.rb - About 25 mins to fix

        Cognitive Complexity

        Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

        A method's cognitive complexity is based on a few simple rules:

        • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
        • Code is considered more complex for each "break in the linear flow of the code"
        • Code is considered more complex when "flow breaking structures are nested"

        Further reading

        Identical blocks of code found in 2 locations. Consider refactoring.
        Open

                  if exist?(newproc)
                    print_status("Starting new x64 process #{newproc}")
                    pid = session.sys.process.execute(newproc, nil, { 'Hidden' => true, 'Suspended' => true }).pid
                    print_good("Got pid #{pid}")
                    print_status('Migrating..')
        Severity: Minor
        Found in modules/post/windows/manage/archmigrate.rb and 1 other location - About 50 mins to fix
        modules/post/windows/gather/ntds_grabber.rb on lines 108..117

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 42.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

        Similar blocks of code found in 2 locations. Consider refactoring.
        Open

              update_info(
                info,
                'Name' => 'Architecture Migrate',
                'Description' => %q{
                  This module checks if the meterpreter architecture is the same as the OS architecture and if it's incompatible it spawns a
        Severity: Minor
        Found in modules/post/windows/manage/archmigrate.rb and 1 other location - About 35 mins to fix
        modules/post/windows/gather/ntds_grabber.rb on lines 15..38

        Duplicated Code

        Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

        Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

        When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

        Tuning

        This issue has a mass of 36.

        We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

        The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

        If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

        See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

        Refactorings

        Further Reading

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