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rapid7/metasploit-framework

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modules/exploits/linux/local/docker_privileged_container_kernel_escape.rb

Summary

Maintainability
C
7 hrs
Test Coverage

Method exploit has a Cognitive Complexity of 20 (exceeds 5 allowed). Consider refactoring.
Open

  def exploit
    krelease = kernel_release
    # Check if kernel header folders exist
    kernel_headers_path = [
      "/lib/modules/#{krelease}/build",
Severity: Minor
Found in modules/exploits/linux/local/docker_privileged_container_kernel_escape.rb - About 2 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 exploit has 52 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def exploit
    krelease = kernel_release
    # Check if kernel header folders exist
    kernel_headers_path = [
      "/lib/modules/#{krelease}/build",
Severity: Major
Found in modules/exploits/linux/local/docker_privileged_container_kernel_escape.rb - About 2 hrs to fix

    Method initialize has 40 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def initialize(info = {})
    super(
      update_info(
        info,
        {
    Severity: Minor
    Found in modules/exploits/linux/local/docker_privileged_container_kernel_escape.rb - About 1 hr to fix

      Method check has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
      Open

        def check
    # Checking database if host has already been disclosed as a container
    container_name =
      if active_db? && framework.db.workspace.hosts.where(address: session.session_host)&.first&.virtual_host
        framework.db.workspace.hosts.where(address: session.session_host)&.first&.virtual_host
      Severity: Minor
      Found in modules/exploits/linux/local/docker_privileged_container_kernel_escape.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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