Puppet Class: cis_security_hardening::rules::disable_dccp

Defined in:
manifests/rules/disable_dccp.pp

Summary

Ensure DCCP is disabled

Overview

The Datagram Congestion Control Protocol (DCCP) is a transport layer protocol that supports streaming media and telephony. DCCP provides a way to gain access to congestion control, without having to do it at the application layer, but does not provide in- sequence delivery.

Rationale: If the protocol is not required, it is recommended that the drivers not be installed to reduce the potential attack surface.

Examples:

class { 'cis_security_hardening::rules::disable_dccp':
    enforce => true,
}

Parameters:

  • enforce (Boolean) (defaults to: false) —

    Enforce the rule



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# File 'manifests/rules/disable_dccp.pp', line 22

class cis_security_hardening::rules::disable_dccp (
  Boolean $enforce = false,
) {
  if $enforce {
    case $facts['os']['name'].downcase() {
      'debian': {
        if $facts['os']['release']['major'] > '10' {
          $command = '/bin/false'
          kmod::blacklist { 'dccp': }
        } else {
          $command = '/bin/true'
        }
      }
      'ubuntu': {
        if $facts['os']['release']['major'] >= '20' {
          $command = '/bin/false'
          kmod::blacklist { 'dccp': }
        } else {
          $command = '/bin/true'
        }
      }
      default: {
        $command = '/bin/true'
      }
    }

    kmod::install { 'dccp':
      command => $command,
    }
  }
}