ShellShock Vulnerablity Scanner [ Python ]

"""
 C0der : Tanmay [ 13lackD3m0n ]
 Facebook : tanmay606
 Email : kevinmetnik606@gmail.com
 Script : ShellShock Vulnerablity Checking Script.

 [+] If you want to use this script on remote server, first upload it and then open it. [/+]

"""
import os,sys,time
try:
 from colorama import Fore,Back
except ImportError:
 print "\n[ERROR]"
 print "\t[1] You need colorama module to run this script. [ install it first ]"
 print "\t[2] This script will not work in WIN. [ only for linux,unix,mac based ]";
 sys.exit(1);
exploit_cmd = "echo vulnerable"; #!execute if server is affected.
sleep_time = int('2'); #!time to sleep.
real_cmd = "echo complete successfull."; #! execute in both cases.

def _banner_():
 print (Fore.GREEN+"\t- > ShellShock Vulnerablity Scanner Script."+Fore.RESET);
 print (Fore.GREEN+"\t- > Author : Tanmay [ 13lackD3Mon ]"+Fore.RESET);
 print "\n";
 sys.stdout.write("\t[#] Checking SYSTEM/OS for ShellShock Vulnerablity . . . . . .\n\n\r");
 sys.stdout.flush();
 time.sleep(sleep_time);

_banner_();

def _vul_():
 print (Back.RED + "\t[WARNING] Your SERVER/OS is affected with ShellShock Vulnerablity.\a" + Back.RESET)
 print (Back.GREEN + "\t [FIX] immediately update BASH.".upper() + Back.RESET)

def _notvul_():
 print "[SUCCESS] Your SYSTEM in properly pathed from shellshock vulnerablity.\a";

def _check_(exploit_cmd):
 for cmd in os.popen("env val='() { :; }; %s' bash -c '%s'"%(exploit_cmd,real_cmd)):
  if("vulnerable" in cmd): #!if vul. code found in result which means OS/SERVER execute crafted command and vulnerable to shellshock
   _vul_();
   sys.exit(1);
  else: #! if not execute crafted command which means system is pathed from shellshock.
   _notvul_();
   sys.exit(1);

_check_(exploit_cmd); #!Trigger hook.