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| """Take list of hosts/URIs or Nmap XML as input, scan hosts on given ports,
and return a searchable and sortable HTML report."""
import argparse
from argparse import RawDescriptionHelpFormatter
from datetime import datetime
import hashlib
from functools import partial
from multiprocessing.dummy import Pool as ThreadPool
from os import getcwd, path
import re
import jinja2
from lxml import html, etree
import lxml
import requests
try:
import ssdeep
except ImportError:
ssdeep = None
import urllib3
import xmltodict
results = {}
cwd = getcwd()
datatables_css = f'<link rel="stylesheet" type="text/css" href="{cwd}/css/jquery.dataTables.min.css">'
jquery = f'<script type="text/javascript" charset="utf8" src="{cwd}/js/jquery-3.5.1.min.js"></script>'
datatables = f'<script type="text/javascript" charset="utf8" src="{cwd}/js/jquery.dataTables.min.js"></script>'
datatables_celledit = f'<script type="text/javascript" charset="utf8" src="{cwd}/js/dataTables.cellEdit.js"></script>'
ssdeep_js = f'<script type="text/javascript" charset="utf8" src="{cwd}/js/ssdeep.js"></script>'
jinja_env = jinja2.Environment(trim_blocks=True, lstrip_blocks=True)
templateLoader = jinja2.FileSystemLoader(searchpath="./")
templateEnv = jinja2.Environment(loader=templateLoader)
TEMPLATE_FILE = "template.html"
template = templateEnv.get_template(TEMPLATE_FILE)
def parse_nmap_xml(nmap_file, ports):
"""Parse an Nmap .xml file for open HTTP(S) ports. Return a set."""
hosts = []
nmap_scan = xmltodict.parse(nmap_file.read())
for host in nmap_scan['nmaprun']['host']:
ipv4_addr = host['address']['@addr']
if isinstance(host['ports']['port'], list):
for port in host['ports']['port']:
if int(port['@portid']) in ports:
hosts.append(f"{ipv4_addr}:{port['@portid']}")
else:
if int(host['ports']['port']['@portid']) in ports:
hosts.append(f"{ipv4_addr}:{host['ports']['port']['@portid']}")
scan_set = {'https://' + host if host[-3:] == '443' else 'http://' + host for host in hosts}
return scan_set
def build_list(list_file, ports):
"""Read a text file of IPs or URLs, prepend protocol and append port as necessary.
Return a set for scanning"""
regex = re.compile(r"^(https?:\/\/)?.+?(:[0-9]{0,5})?$")
scan_set = set()
lines = [line.rstrip() for line in list_file.readlines()]
for line in lines:
line = re.match(regex, line)
if not line:
pass
elif line[1] and line[2]: # protocol and port
scan_set.add(line[0])
elif line[1] and not line[2]: # protocol no port
print('Protocol no port')
if line[1] == 'https://':
scan_set.add(line[0])
else:
for port in ports:
# Convert http://example.com:443 to https://example.com:443
if str(port) == '443':
uri = line[0].replace('http://', 'https://') + ':' + str(port)
scan_set.add(uri)
else:
uri = line[0] + ':' + str(port)
scan_set.add(uri)
print(scan_set)
exit()
elif not line[1] and line[2]: # no protocol but port
if line[2] == ':443':
uri = 'https://' + line[0]
else:
uri = 'http://' + line[0]
scan_set.add(uri)
elif not line[1] and not line[2]: # neither protocol nor port
for port in ports:
if str(port) == '443':
uri = 'https://' + line[0] + ':' + str(port)
else:
uri = 'http://' + line[0] + ':' + str(port)
scan_set.add(uri)
return scan_set
def prompt(question, default=None):
# Adapted from https://stackoverflow.com/a/3041990 - thanks fmark
"""Ask a yes/no question via input() and return answer.
"question" is a string that is presented to the user.
"default" is the presumed answer if the user just hits <Enter>.
It must be "yes" (the default), "no" or None (meaning
an answer is required of the user).
The "answer" return value is True for "yes" or False for "no".
"""
valid = {"yes": True, "y": True, "ye": True, "no": False, "n": False}
if default is None:
choice = " [y/n] "
elif default == "yes":
choice = " [Y/n] "
elif default == "no":
choice = " [y/N] "
else:
raise ValueError(f'Invalid default answer: {default}')
while True:
print(question + choice)
choice = input().lower()
if default is not None and choice == '':
return valid[default]
elif choice in valid:
return valid[choice]
else:
print('[*] Please respond with "[y]es" or "[n]o".')
def scan(timeout, validate_certs, no_redirect, user_agent, fuzzy, verbose, uri):
"""Make requests to the provided URIs and save attributes of the responses."""
headers = {'User-Agent': user_agent}
regex = re.compile(r"type=[\"|\']password[\"|\']", re.IGNORECASE)
# Build parser so multiple threads don't use a global parser
parser = etree.HTMLParser()
title, login, redirect, md5_hash, fuzzy_hash = None, None, None, None, None
error = None
results[uri] = [title, login, redirect, md5_hash, fuzzy_hash]
try:
resp = requests.get(uri, headers=headers, timeout=timeout, verify=validate_certs,
allow_redirects=no_redirect)
if resp.content:
md5_hash = hashlib.md5(resp.content).hexdigest()
tree = html.fromstring(resp.content, parser=parser)
try:
title = tree.find('.//title').text.lstrip().rstrip()
# Strip newline characters if it's depicted in HTML with line breaks
# those break javascript arrays built later.
if ',' in title:
title = '"' + title + '"' # If title contains comma, wrap in quotes for CSV export
except AttributeError:
if verbose:
print(f'[-] {uri} - attribute error; page may lack title element')
login = re.search(regex, resp.content.decode('ISO-8859-1'))
if login:
login = True
if fuzzy:
fuzzy_hash = ssdeep.hash(resp.content)
elif no_redirect is True:
if resp.url.strip('/') != uri:
redirect = resp.url
results[uri] = [title, resp.status_code, login, redirect, md5_hash, fuzzy_hash]
# Handle errors
except requests.exceptions.ConnectTimeout:
error = 'Timeout.'
results[uri].insert(1, error)
except requests.exceptions.ReadTimeout:
error = 'Timeout.'
results[uri].insert(1, error)
except requests.exceptions.SSLError:
error = 'Timeout'
results[uri].insert(1, error)
except requests.exceptions.TooManyRedirects:
error = 'Timeout'
results[uri].insert(1, 'Too many redirects')
# Since requests uses other libraries (socket, httplib, urllib3) a requests ConnectionError
# can be any number of errors raised by those libraries.
except requests.exceptions.ConnectionError as err:
err_msg = str(err.args[0])
if 'BadStatusLine' in err_msg:
error = 'Timeout'
results[uri].insert(1, 'Timeout')
elif 'Connection refused' in err_msg:
error = 'Timeout'
results[uri].insert(1, error)
elif 'Connection reset by peer' in err_msg:
error = 'Timeout'
results[uri].insert(1, error)
else: # Catch all the others
error = err_msg
results[uri].insert(1, 'Timeout')
if verbose and error:
print(f'[-] Error scanning {uri}: {error}')
def main():
"""Scan a list of hosts and generate an HTML report. Return nothing."""
user_agent = '''Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/80.0.3987.163 Safari/537.36'''
parser = argparse.ArgumentParser(description='Scan and categorize web servers using a searchable and sortable'
'HTML report.',
epilog='list input: python3 catscan.py -l <ips.txt> -p 80 443 8080 -t 10\n'
'Nmap xml: python3 catscan.py -x <nmap.xml>',
formatter_class=RawDescriptionHelpFormatter)
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('-x', '--xml', dest='nmap_xml', type=argparse.FileType('r'),
help='Use an Nmap XML file as input.')
group.add_argument('-l', '--list', dest='host_list', type=argparse.FileType('r'),
help='Text file containing list of IPs or hostnames separated by line.')
parser.add_argument('-p', '--ports', dest='ports', nargs='+', required=False, default=[80, 443],
help='List of ports to scan. Default 80 and 443.')
parser.add_argument('-t', '--threads', dest='threads', type=int, default=10,
help='Number of threads. Default 10.')
parser.add_argument('-T', '--timeout', dest='timeout', type=int, default=5,
help='Timeout in seconds. Default 5.')
parser.add_argument('-o', '--output', dest='output', required=False,
help='Name of HTML report. Default based on date/time.')
parser.add_argument('-u', '--user-agent', dest='user_agent', required=False, default=user_agent,
help='User-Agent string.')
parser.add_argument('-r', '--no-redirect', dest='no_redirect', required=False, default=True, action='store_false',
help='Do not follow redirects. Catscan follows redirects by default.')
parser.add_argument('-k', '--validate', dest='validate_certs', required=False, default=False,
action='store_true', help='Validate certificates. Default false.')
parser.add_argument('-n', '--notes', dest='notes', required=False, default=False,
action='store_true', help='Add a writable "Notes" column to HTML report.')
parser.add_argument('-f', '--fuzzy', dest='fuzzy', required=False, default=False,
action='store_true', help='Use "fuzzy" hashes to identify similar sites.')
parser.add_argument('-v', '--verbose', dest='verbose', required=False, default=False,
action='store_true')
args = parser.parse_args()
nmap_file = args.nmap_xml
list_file = args.host_list
ports = args.ports
timeout = args.timeout
threads = args.threads
output = args.output
user_agent = args.user_agent
no_redirect = args.no_redirect
validate_certs = args.validate_certs
notes = args.notes
fuzzy = args.fuzzy
verbose = args.verbose
start_time = datetime.now()
if fuzzy and not ssdeep:
fuzzy = False
print('[-] Error importing ssdeep module. Fuzzy hashing functionality not available.')
if not output:
output = f'catscan_report_{start_time.strftime("%a_%d%b%Y_%H%M").lower()}.html'
if output:
if path.isfile(output):
ans = prompt(f'[*] Output file {output} already exists. Overwrite?', None)
if not ans:
print('[-] Provide new name or overwrite existing report. Exiting.')
exit()
if nmap_file:
scan_list = parse_nmap_xml(nmap_file, ports)
elif list_file:
scan_list = build_list(list_file, ports)
func = partial(scan, timeout, validate_certs, no_redirect, user_agent, fuzzy, verbose)
pool = ThreadPool(threads)
pool.map(func, scan_list)
pool.close()
pool.join()
end_scan_time = datetime.now()
if verbose:
print(f'[*] Scan time: {(end_scan_time - start_time).total_seconds()} seconds')
print(f'[*] {len(scan_list)} hosts scanned')
end_run_time = datetime.now()
print(f'[*] Total run time: {(end_run_time - start_time).total_seconds()} seconds')
title_counts, content_counts = {}, {}
for value in results.values():
if value[0] in title_counts:
title_counts[value[0]] += 1
else:
title_counts[value[0]] = 1
if value[4] in content_counts:
content_counts[value[4]][0] += 1
else:
content_counts[value[4]] = [1, value[0]]
with open(output, 'w', encoding="utf8") as html_report:
html_report.write(template.render(
start_time=start_time.strftime("%a_%d%b%Y_%H%M").lower(),
datatables_css=datatables_css,
jquery=jquery,
datatables=datatables,
datatables_celledit=datatables_celledit,
ssdeep_js=ssdeep_js,
redirect_column=no_redirect,
notes_column=notes,
fuzzy=fuzzy,
results=results,
title_counts=title_counts,
content_counts=content_counts
))
print(f'[*] Report written to {output}')
if __name__ == '__main__':
# Disable "InsecureRequestWarning: Unverified HTTPS request is being made.
# Adding certificate verification is strongly advised." warning.
urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
main() |
lxml.etree.ParserError: Document is empty
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