rastating/wordpress-exploit-framework

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lib/wpxf/modules/exploit/xss/stored/admin_management_xtended_xss_shell_upload.rb

Summary

Maintainability
C
7 hrs
Test Coverage

Assignment Branch Condition size for run is too high. [49.53/15]
Open

  def run
    return false unless super

    @cookie = authenticate_with_wordpress(datastore['username'], datastore['password'])
    return false unless @cookie

This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric

Cyclomatic complexity for run is too high. [11/6]
Open

  def run
    return false unless super

    @cookie = authenticate_with_wordpress(datastore['username'], datastore['password'])
    return false unless @cookie

This cop checks that the cyclomatic complexity of methods is not higher than the configured maximum. The cyclomatic complexity is the number of linearly independent paths through a method. The algorithm counts decision points and adds one.

An if statement (or unless or ?:) increases the complexity by one. An else branch does not, since it doesn't add a decision point. The && operator (or keyword and) can be converted to a nested if statement, and ||/or is shorthand for a sequence of ifs, so they also add one. Loops can be said to have an exit condition, so they add one.

Perceived complexity for run is too high. [12/7]
Open

  def run
    return false unless super

    @cookie = authenticate_with_wordpress(datastore['username'], datastore['password'])
    return false unless @cookie

This cop tries to produce a complexity score that's a measure of the complexity the reader experiences when looking at a method. For that reason it considers when nodes as something that doesn't add as much complexity as an if or a &&. Except if it's one of those special case/when constructs where there's no expression after case. Then the cop treats it as an if/elsif/elsif... and lets all the when nodes count. In contrast to the CyclomaticComplexity cop, this cop considers else nodes as adding complexity.

Example:

def my_method                   # 1
  if cond                       # 1
    case var                    # 2 (0.8 + 4 * 0.2, rounded)
    when 1 then func_one
    when 2 then func_two
    when 3 then func_three
    when 4..10 then func_other
    end
  else                          # 1
    do_something until a && b   # 2
  end                           # ===
end                             # 7 complexity points

Assignment Branch Condition size for upload_shell is too high. [19.34/15]
Open

  def upload_shell(username, password)
    cookie = authenticate_with_wordpress(username, password)
    return false unless cookie

    emit_info 'Uploading payload...'

This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric

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

  def initialize
    super

    update_info(
      name: 'Admin Management Xtended XSS Shell Upload',

    Method run has a Cognitive Complexity of 14 (exceeds 5 allowed). Consider refactoring.
    Open

      def run
        return false unless super
    
        @cookie = authenticate_with_wordpress(datastore['username'], datastore['password'])
        return false unless @cookie

    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

    Assignment Branch Condition size for on_http_request is too high. [15.17/15]
    Open

      def on_http_request(path, params, headers)
        if params['u'] && params['p']
          emit_success "Created a new administrator user, #{params['u']}:#{params['p']}"
          stop_http_server
    
    

    This cop checks that the ABC size of methods is not higher than the configured maximum. The ABC size is based on assignments, branches (method calls), and conditions. See http://c2.com/cgi/wiki?AbcMetric

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

      def run
        return false unless super
    
        @cookie = authenticate_with_wordpress(datastore['username'], datastore['password'])
        return false unless @cookie

      Avoid too many return statements within this method.
      Open

          return @success

        Avoid too many return statements within this method.
        Open

              return false

          Avoid too many return statements within this method.
          Open

                return false

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

              def upload_shell(username, password)
                cookie = authenticate_with_wordpress(username, password)
                return false unless cookie
            
                emit_info 'Uploading payload...'

            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

            Redundant return detected.
            Open

                return @success

            This cop checks for redundant return expressions.

            Example:

            def test
              return something
            end
            
            def test
              one
              two
              three
              return something
            end

            It should be extended to handle methods whose body is if/else or a case expression with a default branch.

            Redundant return detected.
            Open

                  return ''

            This cop checks for redundant return expressions.

            Example:

            def test
              return something
            end
            
            def test
              one
              two
              three
              return something
            end

            It should be extended to handle methods whose body is if/else or a case expression with a default branch.

            Redundant return detected.
            Open

                  return wordpress_js_create_user

            This cop checks for redundant return expressions.

            Example:

            def test
              return something
            end
            
            def test
              one
              two
              three
              return something
            end

            It should be extended to handle methods whose body is if/else or a case expression with a default branch.

            Prefer single-quoted strings when you don't need string interpolation or special symbols.
            Open

                emit_success "Script stored and will be executed when a user views the post"

            Checks if uses of quotes match the configured preference.

            Example: EnforcedStyle: single_quotes (default)

            # bad
            "No special symbols"
            "No string interpolation"
            "Just text"
            
            # good
            'No special symbols'
            'No string interpolation'
            'Just text'
            "Wait! What's #{this}!"

            Example: EnforcedStyle: double_quotes

            # bad
            'Just some text'
            'No special chars or interpolation'
            
            # good
            "Just some text"
            "No special chars or interpolation"
            "Every string in #{project} uses double_quotes"

            There are no issues that match your filters.

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