Is there a way to pass root password into functions on kali linux in python3

Question

I built a class to change my mac address (not sure if this is the cleanest way to do so)

#!/usr/bin/env python3
import subprocess


class MacAdress:

    global interface

    interface = input("enter interface:\t")

    def change_Mac(self=interface):
        mac = '00:11:22:ff:ff:ff'
        subprocess.call(f"sudo -S ifconfig {interface} down", shell=True)
        subprocess.call(f'sudo -S ifconfig {interface} hw ether {mac}', shell=True)
        subprocess.call(f"sudo -S ifconfig {interface} up", shell=True)

    def Restore_Mac(self=interface):
        old_mac = ''
        subprocess.call(f"sudo -S ifconfig {interface} down", shell=True)
        subprocess.call(f'sudo -S ifconfig {interface} hw ether {old_mac}', shell=True)
        subprocess.call(f"sudo -S ifconfig {interface} up", shell=True)

I was wondering if there is a way to store the root password so it only prompts one time similar to how interface is used, instead of using sudo -S for each command.old mac is left blank intentionally. Any tips for cleaning this up to be more professional would be greatly appreciated as well.

You don't want to or need to run sudo inside the script. Just run commands without sudo, and run *your* script with sudo. — Jim Stewart, Sep 22 '20 at 00:08

user11335084 · Answer 1 · 2020-09-22T00:02:38.040

#!/usr/bin/env python3
import subprocess, optparse, getpass


def get_arguments():
    parser = optparse.OptionParser()
    parser.add_option("-i", "--interface", dest="interface", help="Interface to change MAC address eg. eth0 wlan0")
    parser.add_option("-m", "--mac", dest="new_mac", help="New Mac Address")
    (options, arguments) = parser.parse_args()
    if not options.interface:
        parser.error("Please specify an interface with -i or --interface use --help for more info")

    elif not options.new_mac:
        parser.error("Please specify an new mac with -m or --mac use --help for more info")

    return options


def change_mac(interface, new_mac):
    cmd1 = "ifconfig " + interface + " down"
    cmd2 = "ifconfig " + interface + " hw" + " ether " + new_mac
    cmd3 = "ifconfig " + interface + " up"
    root_password = getpass.getpass("Enter Sudo password : ")
    print(f"[+] Changing MAC address for " + interface + " to " + new_mac)
    subprocess.call('echo {} | sudo -S {}'.format(root_password, cmd1), shell=True)
    subprocess.call('echo {} | sudo -S {}'.format(root_password, cmd2), shell=True)
    subprocess.call('echo {} | sudo -S {}'.format(root_password, cmd3), shell=True)


options = get_arguments()
change_mac(options.interface, options.new_mac)

Figured it out looks documentation provided enough information to answer my question along with some off topic linux-cli answers on Stack Overflow. Great community!!!

~edit~ It looks like there is a better way to capture the sudo password that wont show in clear text using the getpass library and passing arguments in cli

Is there a way to pass root password into functions on kali linux in python3

1 Answers1