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kev-catalog.py
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kev-catalog.py
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#!/usr/bin/python3
# -*- coding: utf-8 -*-
import sys, argparse
from argparse import RawTextHelpFormatter
from timeit import default_timer as timer
import json
import requests
from datetime import date
from datetime import datetime, timedelta
from collections import Counter
from colorama import init, Fore, Back, Style
import pyfiglet
description = f'CISA\'s Known Exploited Vulns (KEV) Catalog'
banner = f"""
Zzzzz |\ _,,,---,,_
/,`.-'`' -. ;-;;,_ __author__ : [ zd ]
|,4- ) )-,_..;\ ( `'-' __year__ : [ 2022.03 ]
'---''(_/--' `-'\_) __file__ : [ {__file__} ]
[ {description} ]
"""
url = 'https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json'
verberos = False
count = 0
def cg(x): return (f'{Fore.GREEN}{x}{Style.RESET_ALL}')
def cy(x): return (f'{Fore.YELLOW}{x}{Style.RESET_ALL}')
def Search_CVE(cisa, cveid):
for vuln in cisa["vulnerabilities"]:
cve = vuln["cveID"].strip('CVE-')
if cve == cveid:
print(f'')
print(f' [*] CVE-ID : {vuln["cveID"]} [ {vuln["vulnerabilityName"]} ]')
print(f' [*] Date_Added : {vuln["dateAdded"]}')
print(f' [*] Description : {vuln["shortDescription"]}')
print(f'')
print(f' [**] Vendor/Product : {vuln["vendorProject"]} / {vuln["product"]}')
print(f' [**] Remediation : {vuln["requiredAction"]}')
print(f' [**] Overdue : {vuln["dueDate"]}')
print(f'')
else:
print(f'')
def Search_String(cisa, searchstring):
vcount = 0
for vuln in cisa["vulnerabilities"]:
vcve = vuln["cveID"]
vname = vuln["vulnerabilityName"]
vdesc = vuln["shortDescription"]
vadded = vuln["dateAdded"]
vdue = vuln["dueDate"]
vaction = vuln["requiredAction"]
vproduct = f'{vuln["vendorProject"]} / {vuln["product"]}'
if (vname.lower().find(searchstring.lower()) != -1 or vdesc.lower().find(searchstring.lower()) != -1):
vcount = vcount + 1
print(f'')
print(f' [*] CVE-ID : {vcve} [ {vname} ]')
print(f' [*] Date_Added/Due : {vadded} / {vdue}')
print(f' [*] Vendor/Prod : {vproduct}')
print(f' [*] Description : {vdesc}')
print(f'')
else:
print(f'')
print(f' [**] Found : {cg(vcount)} [ {searchstring} ] ')
print(f'')
def main():
""" main() function """
g = globals()
parser = argparse.ArgumentParser(description=banner, formatter_class=RawTextHelpFormatter)
parser.add_argument('-i', dest='mostcommon', metavar='<n>', default=5, type=int, help='Specifying most common vendor/product. Default is top 5.')
parser.add_argument('-j', dest='jsonfile', metavar='<file.json>', help='Specifying local JSON file')
parser.add_argument('-l', dest='lastdays', metavar='<N>', default=2, type=int, help='Specifying latest N-cve. Default is last 2.')
parser.add_argument('-v', action='store_true', help='verbose output')
searching = parser.add_argument_group('Search in Catalog')
searching.add_argument('-e', dest='cve', metavar='<cve>', help='Search a CVE within Known Exploited Vulnerabilities catalog.')
searching.add_argument('-s', dest='searchstring', metavar='<string>', help='Search a string within Known Exploited Vulnerabilities catalog.')
args = parser.parse_args()
g['verbose'] = True if args.v else False
init(autoreset=True)
print(f'')
word = pyfiglet.figlet_format("KEV Catalog", font="slant")
print(Fore.RED + word)
if args.jsonfile:
try:
fh = open(args.jsonfile, 'r')
cisa = json.load(fh)
except:
print(f' [*] FAIL to open the {args.jsonfile}')
return
else:
resp = requests.get(url)
if resp.ok:
cisa = resp.json()
else:
print(f' [*] FAIL to access the JSON file at {url}')
return
print(f'\n{cisa["title"]} [ {cg(cisa["catalogVersion"])}/{cy(cisa["count"])} ]\n')
if args.cve:
Search_CVE(cisa, args.cve)
return
if args.searchstring:
Search_String(cisa, args.searchstring)
return
pastNdays = args.lastdays
pDate = date.today() - timedelta(days=pastNdays)
today = datetime.today()
cveOverdue = []
cveFuture = []
vulnlist = []
vendors = []
products = []
newAdded = {}
newVulnList = []
newAdded = { "vuln" : newVulnList }
for vuln in cisa["vulnerabilities"]:
cve = vuln["cveID"].strip('CVE-')
vulnlist.append(cve)
duedate = datetime.strptime(vuln["dueDate"], '%Y-%m-%d')
if duedate <= today:
cveOverdue.append(cve)
else:
cveFuture.append(cve)
vendors.append(vuln["vendorProject"].strip())
products.append(vuln["product"].strip())
cveAddedDate = datetime.strptime(vuln["dateAdded"], '%Y-%m-%d').date()
if cveAddedDate >= pDate:
newVuln = { "cveID" : vuln["cveID"], "dateAdded" : vuln["dateAdded"], "name" : vuln["vulnerabilityName"], "dueDate" : vuln["dueDate"] }
newAdded["vuln"].append(newVuln)
qstr = ' OR '.join(vulnlist)
qstr_overdue = ' OR '.join(cveOverdue)
qstr_future = ' OR '.join(cveFuture)
c_vendor = Counter(vendors)
c_product = Counter(products)
top = args.mostcommon
c_vendor_out = ''
for k,v in c_vendor.most_common(top):
c_vendor_out = f'{c_vendor_out} "{k}"/({v})'
c_product_out = ''
for k,v in c_product.most_common(top):
c_product_out = f'{c_product_out} "{k}"/({v})'
print(f'')
title_vendor = f'Top {top} vendors '
print(f' [*] {cg(title_vendor)} : {c_vendor_out}')
print(f'')
title_product = f'Top {top} products '
print(f' [*] {cy(title_product)} : {c_product_out}')
print(f'')
if args.v:
print(f' [*] There are {cy(len(newAdded["vuln"]))} newly added Known Exploited vulnerabilities since {cg(pastNdays)} days ago ({pDate.isoformat()}).')
for v in newAdded["vuln"]:
days = datetime.strptime(v["dueDate"], "%Y-%m-%d").date() - date.today()
print(f' [**] {v["dateAdded"]} : {v["cveID"]} / {v["name"]} [ {cg(v["dueDate"])} / {cy(days.days)}d ]')
else:
print(f' [*] There are {cy(len(newAdded["vuln"]))} newly added Known Exploited vulnerabilities since {cg(pastNdays)} days ago.')
print(f'')
if args.v:
vendors = list(dict.fromkeys(vendors))
products = list(dict.fromkeys(products))
print(f' [*] Total vendors : {len(vendors)}')
print(f' [*] Total products : {len(products)}')
print(f' [*] Total CVEs : {len(vulnlist)}')
print(f' [*] Overdue CVE : {cy(len(cveOverdue))}')
print(f' [*] Upcoming CVE : {cg(len(cveFuture))}')
if __name__ == "__main__":
if sys.version_info.major == 2:
print('This script needs Python 3.')
exit()
start = timer()
main()
end = timer()
print(f'')
print(f'\n [{date.today()}] Completed within [{end-start:.2f} sec].\n')