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modules/exploits/windows/local/cve_2020_1337_printerdemon.rb

Summary

Maintainability
C
7 hrs
Test Coverage

Method initialize has 67 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Microsoft Spooler Local Privilege Elevation Vulnerability',
Severity: Major
Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb - About 2 hrs to fix

    Method exploit has a Cognitive Complexity of 12 (exceeds 5 allowed). Consider refactoring.
    Open

      def exploit
    if datastore['DESTINATION_PATH'].nil? || datastore['DESTINATION_PATH'].empty?
      win_dir = session.sys.config.getenv('windir')
      destination_path = "#{win_dir}\\system32"
    else
    Severity: Minor
    Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb - About 1 hr 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 exploit has 34 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def exploit
    if datastore['DESTINATION_PATH'].nil? || datastore['DESTINATION_PATH'].empty?
      win_dir = session.sys.config.getenv('windir')
      destination_path = "#{win_dir}\\system32"
    else
    Severity: Minor
    Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb - About 1 hr to fix

      Method cve_2020_1337_privileged_filecopy has 5 arguments (exceeds 4 allowed). Consider refactoring.
      Open

        def cve_2020_1337_privileged_filecopy(destination_file, destination_path, junction_path, printer_name, b64_payload)
      Severity: Minor
      Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb - About 35 mins to fix

        Identical blocks of code found in 5 locations. Consider refactoring.
        Open

          def validate_active_host
    print_status("Attempting to PrivEsc on #{sysinfo['Computer']} via session ID: #{datastore['SESSION']}")
  rescue Rex::Post::Meterpreter::RequestError => e
    elog('Could not connect to session', error: e)
    raise Msf::Exploit::Failed, 'Could not connect to session'
        Severity: Major
        Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb and 4 other locations - About 30 mins to fix
        modules/exploits/windows/local/comahawk.rb on lines 117..122
        modules/exploits/windows/local/cve_2020_1048_printerdemon.rb on lines 160..165
        modules/exploits/windows/local/cve_2020_1313_system_orchestrator.rb on lines 139..144
        modules/exploits/windows/local/tokenmagic.rb on lines 162..167

        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 32.

        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

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

          def check
    version = get_version_info
    vprint_status("OS version: #{version}")
    return Exploit::CheckCode::Appears if version.build_number.between?(Msf::WindowsVersion::Win10_InitialRelease, Msf::WindowsVersion::Win10_1909)
        Severity: Minor
        Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb and 1 other location - About 15 mins to fix
        modules/exploits/windows/local/cve_2020_1048_printerdemon.rb on lines 175..182

        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 26.

        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 3 locations. Consider refactoring.
        Open

          def validate_payload
    vprint_status("Target Arch = #{sysinfo['Architecture']}")
    vprint_status("Payload Arch = #{payload.arch.first}")
    unless payload.arch.first == sysinfo['Architecture']
      fail_with(Failure::BadConfig, 'Payload arch must match target arch')
        Severity: Minor
        Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb and 2 other locations - About 15 mins to fix
        modules/exploits/windows/local/cve_2020_1048_printerdemon.rb on lines 167..171
        modules/exploits/windows/local/tokenmagic.rb on lines 169..173

        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 26.

        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

            if datastore['DESTINATION_PATH'].nil? || datastore['DESTINATION_PATH'].empty?
      win_dir = session.sys.config.getenv('windir')
      destination_path = "#{win_dir}\\system32"
    else
      destination_path = datastore['DESTINATION_PATH']
        Severity: Minor
        Found in modules/exploits/windows/local/cve_2020_1337_printerdemon.rb and 1 other location - About 15 mins to fix
        modules/exploits/windows/local/cve_2020_1048_printerdemon.rb on lines 113..118

        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 26.

        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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