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modules/exploits/linux/local/cve_2022_0995_watch_queue.rb

Summary

Maintainability
B
5 hrs
Test Coverage

Method initialize has 46 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def initialize(info = {})
    super(
      update_info(
        info,
        'Name' => 'Watch Queue Out of Bounds Write',
Severity: Minor
Found in modules/exploits/linux/local/cve_2022_0995_watch_queue.rb - About 1 hr to fix

    Method exploit has 41 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def exploit
    module_check
    base_dir = datastore['WritableDir'].to_s
    unless writable?(base_dir)
      fail_with(Failure::BadConfig, "#{base_dir} is not writable")
    Severity: Minor
    Found in modules/exploits/linux/local/cve_2022_0995_watch_queue.rb - About 1 hr to fix

      Method module_check has a Cognitive Complexity of 11 (exceeds 5 allowed). Consider refactoring.
      Open

        def module_check
    # Vulnerable versions are under 5.17:rc8
    # This module only has offsets for Ubuntu 5.13.0-37
    if !datastore['ForceExploit'] && is_root?
      fail_with(Failure::BadConfig, 'Session already has root privileges. Set ForceExploit to override.')
      Severity: Minor
      Found in modules/exploits/linux/local/cve_2022_0995_watch_queue.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 a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
      Open

        def exploit
    module_check
    base_dir = datastore['WritableDir'].to_s
    unless writable?(base_dir)
      fail_with(Failure::BadConfig, "#{base_dir} is not writable")
      Severity: Minor
      Found in modules/exploits/linux/local/cve_2022_0995_watch_queue.rb - About 55 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

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