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rapid7/metasploit-framework

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modules/exploits/unix/ftp/vsftpd_234_backdoor.rb

Summary

Maintainability
A
3 hrs
Test Coverage

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

  def initialize(info = {})
    super(update_info(info,
      'Name'           => 'VSFTPD v2.3.4 Backdoor Command Execution',
      'Description'    => %q{
          This module exploits a malicious backdoor that was added to the    VSFTPD download
Severity: Minor
Found in modules/exploits/unix/ftp/vsftpd_234_backdoor.rb - About 1 hr to fix

    Method exploit has 30 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

      def exploit

    nsock = self.connect(false, {'RPORT' => 6200}) rescue nil
    if nsock
      print_status("The port used by the backdoor bind listener is already open")
    Severity: Minor
    Found in modules/exploits/unix/ftp/vsftpd_234_backdoor.rb - About 1 hr to fix

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

        def exploit

    nsock = self.connect(false, {'RPORT' => 6200}) rescue nil
    if nsock
      print_status("The port used by the backdoor bind listener is already open")
      Severity: Minor
      Found in modules/exploits/unix/ftp/vsftpd_234_backdoor.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"

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