mirror of
https://github.com/mozilla/cipherscan.git
synced 2024-11-05 07:23:42 +01:00
686d7c958b
While preferring RC4 in TLS1.0 or SSL3 was recommended before, it was always known that TLS1.1 and TLS1.2 were not vulnerable against BEAST, so forcing RC4 there is a mistake. Report number of such servers.
295 lines
11 KiB
Python
295 lines
11 KiB
Python
#!/usr/bin/env python
|
|
|
|
from __future__ import division
|
|
|
|
path = "./results/"
|
|
|
|
import json
|
|
import sys
|
|
from collections import defaultdict
|
|
import os
|
|
|
|
report_untrused=False
|
|
|
|
cipherstats = defaultdict(int)
|
|
pfsstats = defaultdict(int)
|
|
protocolstats = defaultdict(int)
|
|
handshakestats = defaultdict(int)
|
|
keysize = defaultdict(int)
|
|
sigalg = defaultdict(int)
|
|
dsarsastack = 0
|
|
total = 0
|
|
for r,d,flist in os.walk(path):
|
|
|
|
for f in flist:
|
|
|
|
""" initialize variables for stats of the current site """
|
|
temppfsstats = {}
|
|
tempkeystats = {}
|
|
tempecckeystats = {}
|
|
tempdsakeystats = {}
|
|
tempsigstats = {}
|
|
ciphertypes = 0
|
|
AESGCM = False
|
|
AES = False
|
|
CHACHA20 = False
|
|
DES3 = False
|
|
CAMELLIA = False
|
|
RC4 = False
|
|
DHE = False
|
|
ECDHE = False
|
|
RSA = False
|
|
SSL2 = False
|
|
SSL3 = False
|
|
TLS1 = False
|
|
TLS1_1 = False
|
|
TLS1_2 = False
|
|
dualstack = False
|
|
ECDSA = False
|
|
trusted = False
|
|
|
|
""" process the file """
|
|
f_abs = os.path.join(r,f)
|
|
with open(f_abs) as json_file:
|
|
""" discard files that fail to load """
|
|
try:
|
|
results = json.load(json_file)
|
|
except ValueError:
|
|
continue
|
|
|
|
""" discard files with empty results """
|
|
if len(results['ciphersuite']) < 1:
|
|
continue
|
|
|
|
""" loop over list of ciphers """
|
|
for entry in results['ciphersuite']:
|
|
|
|
# some servers return different certificates with different
|
|
# ciphers, also we may become redirected to other server with
|
|
# different config (because over-reactive IPS)
|
|
if 'False' in entry['trusted'] and report_untrused == False:
|
|
continue
|
|
|
|
""" store the ciphers supported """
|
|
if 'AES128-GCM' in entry['cipher'] or 'AES256-GCM' in entry['cipher']:
|
|
if not AESGCM:
|
|
AESGCM = True
|
|
ciphertypes += 1
|
|
elif 'AES' in entry['cipher']:
|
|
if not AES:
|
|
AES = True
|
|
ciphertypes += 1
|
|
elif 'DES-CBC3' in entry['cipher']:
|
|
if not DES3:
|
|
DES3 = True
|
|
ciphertypes += 1
|
|
elif 'CAMELLIA' in entry['cipher']:
|
|
if not CAMELLIA:
|
|
CAMELLIA = True
|
|
ciphertypes += 1
|
|
elif 'RC4' in entry['cipher']:
|
|
if not RC4:
|
|
ciphertypes += 1
|
|
RC4 = True
|
|
elif 'CHACHA20' in entry['cipher']:
|
|
if not CHACHA20:
|
|
ciphertypes += 1
|
|
CHACHA20 = True
|
|
else:
|
|
ciphertypes += 1
|
|
name = "z:" + entry['cipher']
|
|
cipherstats[name] += 1
|
|
|
|
""" store key handshake methods """
|
|
if 'ECDHE' in entry['cipher']:
|
|
ECDHE = True
|
|
temppfsstats[entry['pfs']] = 1
|
|
elif 'DHE' in entry['cipher']:
|
|
DHE = True
|
|
temppfsstats[entry['pfs']] = 1
|
|
|
|
""" save the key size """
|
|
if 'ECDSA' in entry['cipher']:
|
|
ECDSA = True
|
|
tempecckeystats[entry['pubkey'][0]] = 1
|
|
elif 'DSS' in entry['cipher']:
|
|
tempdsakeystats[entry['pubkey'][0]] = 1
|
|
elif 'AECDH' in entry['cipher'] or 'ADH' in entry['cipher']:
|
|
""" skip """
|
|
else:
|
|
tempkeystats[entry['pubkey'][0]] = 1
|
|
if ECDSA:
|
|
dualstack = True
|
|
|
|
if 'True' in entry['trusted'] and not 'ADH' in entry['cipher'] and not 'AECDH' in entry['cipher']:
|
|
trusted = True
|
|
|
|
""" save key signatures size """
|
|
tempsigstats[entry['sigalg'][0]] = 1
|
|
|
|
""" store the versions of TLS supported """
|
|
for protocol in entry['protocols']:
|
|
if protocol == 'SSLv2':
|
|
SSL2 = True
|
|
elif protocol == 'SSLv3':
|
|
SSL3 = True
|
|
elif protocol == 'TLSv1':
|
|
TLS1 = True
|
|
elif protocol == 'TLSv1.1':
|
|
TLS1_1 = True
|
|
elif protocol == 'TLSv1.2':
|
|
TLS1_2 = True
|
|
json_file.close()
|
|
|
|
""" don't store stats from unusued servers """
|
|
if report_untrused == False and trusted == False:
|
|
continue
|
|
|
|
total += 1
|
|
|
|
""" done with this file, storing the stats """
|
|
if DHE or ECDHE:
|
|
pfsstats['Support PFS'] += 1
|
|
if 'DHE-' in results['ciphersuite'][0]['cipher']:
|
|
pfsstats['Prefer PFS'] += 1
|
|
pfsstats['Prefer ' + results['ciphersuite'][0]['pfs']] += 1
|
|
for s in temppfsstats:
|
|
pfsstats[s] += 1
|
|
|
|
for s in tempkeystats:
|
|
keysize['RSA ' + s] += 1
|
|
for s in tempecckeystats:
|
|
keysize['ECDSA ' + s] += 1
|
|
for s in tempdsakeystats:
|
|
keysize['DSA ' + s] += 1
|
|
|
|
if dualstack:
|
|
dsarsastack += 1
|
|
|
|
for s in tempsigstats:
|
|
sigalg[s] += 1
|
|
|
|
""" store cipher stats """
|
|
if AESGCM:
|
|
cipherstats['AES-GCM'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['AES-GCM Only'] += 1
|
|
if AES:
|
|
cipherstats['AES'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['AES-CBC Only'] += 1
|
|
if (AES and ciphertypes == 1) or (AESGCM and ciphertypes == 1)\
|
|
or (AES and AESGCM and ciphertypes == 2):
|
|
cipherstats['AES Only'] += 1
|
|
if CHACHA20:
|
|
cipherstats['CHACHA20'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['CHACHA20 Only'] += 1
|
|
if DES3:
|
|
cipherstats['3DES'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['3DES Only'] += 1
|
|
if CAMELLIA:
|
|
cipherstats['CAMELLIA'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['CAMELLIA Only'] += 1
|
|
if RC4:
|
|
cipherstats['RC4'] += 1
|
|
if ciphertypes == 1:
|
|
cipherstats['RC4 Only'] += 1
|
|
if 'RC4' in results['ciphersuite'][0]['cipher']:
|
|
if 'TLSv1.1' in results['ciphersuite'][0]['protocols'] or\
|
|
'TLSv1.2' in results['ciphersuite'][0]['protocols']:
|
|
cipherstats['RC4 forced in TLS1.1+'] += 1
|
|
cipherstats['RC4 Preferred'] += 1
|
|
|
|
|
|
""" store handshake stats """
|
|
if ECDHE:
|
|
handshakestats['ECDHE'] += 1
|
|
if DHE:
|
|
handshakestats['DHE'] += 1
|
|
if RSA:
|
|
handshakestats['RSA'] += 1
|
|
|
|
""" store protocol stats """
|
|
if SSL2:
|
|
protocolstats['SSL2'] += 1
|
|
if not SSL3 and not TLS1 and not TLS1_1 and not TLS1_2:
|
|
protocolstats['SSL2 Only'] += 1
|
|
if SSL3:
|
|
protocolstats['SSL3'] += 1
|
|
if not SSL2 and not TLS1 and not TLS1_1 and not TLS1_2:
|
|
protocolstats['SSL3 Only'] += 1
|
|
if TLS1:
|
|
protocolstats['TLS1'] += 1
|
|
if not SSL2 and not SSL3 and not TLS1_1 and not TLS1_2:
|
|
protocolstats['TLS1 Only'] += 1
|
|
if not SSL2 and (SSL3 or TLS1) and not TLS1_1 and not TLS1_2:
|
|
protocolstats['SSL3 or TLS1 Only'] += 1
|
|
if not SSL2 and not SSL3 and not TLS1:
|
|
protocolstats['TLS1.1 or up Only'] += 1
|
|
if TLS1_1:
|
|
protocolstats['TLS1.1'] += 1
|
|
if not SSL2 and not SSL3 and not TLS1 and not TLS1_2:
|
|
protocolstats['TLS1.1 Only'] += 1
|
|
if TLS1_2:
|
|
protocolstats['TLS1.2'] += 1
|
|
if not SSL2 and not SSL3 and not TLS1 and not TLS1_1:
|
|
protocolstats['TLS1.2 Only'] += 1
|
|
if TLS1_2 and not TLS1_1 and TLS1:
|
|
protocolstats['TLS1.2, 1.0 but not 1.1'] += 1
|
|
|
|
# for testing, break early
|
|
#if total % 1999 == 0:
|
|
# break
|
|
|
|
print("SSL/TLS survey of %i websites from Alexa's top 1 million" % total)
|
|
if report_untrused == False:
|
|
print("Stats only from connections that did provide valid certificates")
|
|
print("(or anonymous DH from servers that do also have valid certificate installed)\n")
|
|
|
|
""" Display stats """
|
|
print("\nSupported Ciphers Count Percent")
|
|
print("-------------------------+---------+-------")
|
|
for stat in sorted(cipherstats):
|
|
percent = round(cipherstats[stat] / total * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(cipherstats[stat]).ljust(10) + str(percent).ljust(4) + "\n")
|
|
|
|
print("\nSupported Handshakes Count Percent")
|
|
print("-------------------------+---------+-------")
|
|
for stat in sorted(handshakestats):
|
|
percent = round(handshakestats[stat] / total * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(handshakestats[stat]).ljust(10) + str(percent).ljust(4) + "\n")
|
|
|
|
print("\nSupported PFS Count Percent PFS Percent")
|
|
print("-------------------------+---------+--------+-----------")
|
|
for stat in sorted(pfsstats):
|
|
percent = round(pfsstats[stat] / total * 100, 4)
|
|
pfspercent = 0
|
|
if "ECDH," in stat:
|
|
pfspercent = round(pfsstats[stat] / handshakestats['ECDHE'] * 100, 4)
|
|
elif "DH," in stat:
|
|
pfspercent = round(pfsstats[stat] / handshakestats['DHE'] * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(pfsstats[stat]).ljust(10) + str(percent).ljust(9) + str(pfspercent) + "\n")
|
|
|
|
print("\nCertificate sig alg Count Percent ")
|
|
print("-------------------------+---------+--------")
|
|
for stat in sorted(sigalg):
|
|
percent = round(sigalg[stat] / total * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(sigalg[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
|
|
|
print("\nCertificate key size Count Percent ")
|
|
print("-------------------------+---------+--------")
|
|
for stat in sorted(keysize):
|
|
percent = round(keysize[stat] / total * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(keysize[stat]).ljust(10) + str(percent).ljust(9) + "\n")
|
|
|
|
sys.stdout.write("RSA/ECDSA Dual Stack".ljust(25) + " " + str(dsarsastack).ljust(10) + str(round(dsarsastack/total * 100, 4)) + "\n")
|
|
|
|
print("\nSupported Protocols Count Percent")
|
|
print("-------------------------+---------+-------")
|
|
for stat in sorted(protocolstats):
|
|
percent = round(protocolstats[stat] / total * 100, 4)
|
|
sys.stdout.write(stat.ljust(25) + " " + str(protocolstats[stat]).ljust(10) + str(percent).ljust(4) + "\n")
|