I'm feeling quite perplexed as to why my script is not functioning properly.
This particular script is designed to search for servers with port 19 open (CHARGEN).
You need to input a list of IPs in the following format:
1.1.1.1
2.2.2.2
3.3.3.3
4.4.4.4
5.5.5.5
Once the list is provided, the script scans each IP to determine if port 19 is open. If it finds an open port, it saves the IP to a file.
Below is the code snippet:
#!/usr/bin/env python
#CHARGEN Scanner
#Created by Expedient
import sys
import Queue
import socket
import threading
queue = Queue.Queue()
def check_ip(host, output_file, timeout):
try:
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.settimeout(timeout)
result = sock.connect_ex((host, 19))
if result == 0:
print "Found: %s" % host
file = open(output_file, "a")
file.write(host+"\n")
file.close()
except:
pass
def add_to_queue(queue, host, output_file, timeout):
queue.put(check_ip(host, output_file, timeout))
if len(sys.argv) < 4:
print "Usage: %s <ip list> <output file> <timeout>" % sys.argv[0]
sys.exit()
try:
open(sys.argv[1])
except:
print "Unable to open ip list."
sys.exit()
print "Initiating Expedient's CHARGEN Scanner..."
with open(sys.argv[1]) as ip_list:
for ip in ip_list:
thread = threading.Thread(target=add_to_queue, args=(queue, ip, sys.argv[2], float(sys.argv[3])))
thread.start()
Despite running the script on a list of servers obtained from nmap scan
(ensuring all have port 19 open), none of the IPs are written to the output file.
The expected outcome should be that every IP in the list with port 19 open gets saved, but this isn't happening.
I am at a loss regarding what might be causing this issue and would greatly appreciate any assistance or guidance on where I might be going wrong. Thank you.