rapid7/metasploit-framework

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modules/auxiliary/scanner/vxworks/wdbrpc_version.rb

Summary

Maintainability
C
1 day
Test Coverage

Method run_batch has a Cognitive Complexity of 18 (exceeds 5 allowed). Consider refactoring.
Open

  def run_batch(batch)

    begin
      udp_sock = nil
      idx = 0
Severity: Minor
Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.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 run_batch has 41 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def run_batch(batch)

    begin
      udp_sock = nil
      idx = 0
Severity: Minor
Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb - About 1 hr to fix

    Method parse_reply has 31 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def parse_reply(pkt)
    
        return if not pkt[1]
    
        if(pkt[1] =~ /^::ffff:/)
    Severity: Minor
    Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb - About 1 hr to fix

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

        def parse_reply(pkt)
      
          return if not pkt[1]
      
          if(pkt[1] =~ /^::ffff:/)
      Severity: Minor
      Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb - About 25 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

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

            batch.each do |ip|
      
              begin
                udp_sock.sendto(create_probe(ip), ip, datastore['RPORT'].to_i, 0)
              rescue ::Interrupt
      Severity: Major
      Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb and 1 other location - About 1 hr to fix
      modules/auxiliary/scanner/vxworks/wdbrpc_bootline.rb on lines 53..70

      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 52.

      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

          if data.length == 24
            ecode = data[20,4].unpack("N")[0]
            emesg = "unknown"
            case ecode
            when 3
      Severity: Minor
      Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb and 1 other location - About 50 mins to fix
      modules/auxiliary/scanner/vxworks/wdbrpc_bootline.rb on lines 111..124

      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 42.

      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

            while (r = udp_sock.recvfrom(65535, del) and r[1])
              parse_reply(r)
      
              # Prevent an indefinite loop if the targets keep replying
              cnt += 1
      Severity: Minor
      Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb and 1 other location - About 30 mins to fix
      modules/auxiliary/scanner/vxworks/wdbrpc_bootline.rb on lines 75..86

      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 33.

      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

        def initialize
          super(
            'Name'        => 'VxWorks WDB Agent Version Scanner',
            'Description' => 'Scan for exposed VxWorks wdbrpc daemons',
            'Author'      => 'hdm',
      Severity: Minor
      Found in modules/auxiliary/scanner/vxworks/wdbrpc_version.rb and 1 other location - About 30 mins to fix
      modules/auxiliary/scanner/vxworks/wdbrpc_bootline.rb on lines 11..28

      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

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