rapid7/metasploit-framework

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lib/msf/core/payload/windows/reverse_win_http.rb

Summary

Maintainability
F
4 days
Test Coverage

Method asm_reverse_winhttp has 458 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  def asm_reverse_winhttp(opts={})

    retry_count       = [opts[:retry_count].to_i, 1].max
    verify_ssl        = nil
    encoded_cert_hash = nil
Severity: Major
Found in lib/msf/core/payload/windows/reverse_win_http.rb - About 2 days to fix

    File reverse_win_http.rb has 524 lines of code (exceeds 250 allowed). Consider refactoring.
    Open

    module Msf
    
    ###
    #
    # Complex payload generation for Windows ARCH_X86 that speak HTTP(S) using WinHTTP
    Severity: Major
    Found in lib/msf/core/payload/windows/reverse_win_http.rb - About 1 day to fix

      Method asm_reverse_winhttp has a Cognitive Complexity of 39 (exceeds 5 allowed). Consider refactoring.
      Open

        def asm_reverse_winhttp(opts={})
      
          retry_count       = [opts[:retry_count].to_i, 1].max
          verify_ssl        = nil
          encoded_cert_hash = nil
      Severity: Minor
      Found in lib/msf/core/payload/windows/reverse_win_http.rb - About 5 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

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

        def generate(opts={})
          ds = opts[:datastore] || datastore
          conf = {
            ssl:  opts[:ssl] || false,
            host: ds['LHOST'] || '127.127.127.127',
      Severity: Major
      Found in lib/msf/core/payload/windows/reverse_win_http.rb and 1 other location - About 3 hrs to fix
      lib/msf/core/payload/windows/x64/reverse_win_http_x64.rb on lines 29..55

      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 113.

      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 proxy_enabled
            if opts[:proxy_type].to_s.downcase == "socks"
              proxy_info << "socks="
            else
              proxy_info << "http://"
      Severity: Minor
      Found in lib/msf/core/payload/windows/reverse_win_http.rb and 1 other location - About 45 mins to fix
      lib/msf/core/payload/windows/x64/reverse_win_http_x64.rb on lines 162..174

      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 40.

      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 opts[:ssl] && opts[:verify_cert_hash]
            verify_ssl = true
            encoded_cert_hash = opts[:verify_cert_hash].unpack("C*").map{|c| "0x%.2x" % c }.join(",")
          end
      Severity: Minor
      Found in lib/msf/core/payload/windows/reverse_win_http.rb and 1 other location - About 15 mins to fix
      lib/msf/core/payload/windows/x64/reverse_win_http_x64.rb on lines 154..157

      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 25.

      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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