1218 lines
62 KiB
Python
1218 lines
62 KiB
Python
# Author: Hubert Kario, (c) 2016
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# Released under Gnu GPL v2.0, see LICENSE file for details
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"""Bleichenbacher attack reproducer"""
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from __future__ import print_function
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import traceback
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import sys
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import getopt
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from itertools import chain
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from random import sample
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from tlsfuzzer.runner import Runner
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from tlsfuzzer.messages import Connect, ClientHelloGenerator, \
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ClientKeyExchangeGenerator, ChangeCipherSpecGenerator, \
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FinishedGenerator, ApplicationDataGenerator, AlertGenerator, \
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TCPBufferingEnable, TCPBufferingDisable, TCPBufferingFlush
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from tlsfuzzer.expect import ExpectServerHello, ExpectCertificate, \
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ExpectServerHelloDone, ExpectChangeCipherSpec, ExpectFinished, \
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ExpectAlert, ExpectClose, ExpectApplicationData, ExpectNoMessage
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from tlslite.constants import CipherSuite, AlertLevel, AlertDescription, \
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ExtensionType
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from tlslite.utils.dns_utils import is_valid_hostname
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from tlslite.extensions import SNIExtension
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from tlsfuzzer.utils.lists import natural_sort_keys
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version = 3
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def help_msg():
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print("Usage: <script-name> [-h hostname] [-p port] [[probe-name] ...]")
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print(" -h hostname name of the host to run the test against")
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print(" localhost by default")
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print(" -p port port number to use for connection, 4433 by default")
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print(" probe-name if present, will run only the probes with given")
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print(" names and not all of them, e.g \"sanity\"")
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print(" -e probe-name exclude the probe from the list of the ones run")
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print(" may be specified multiple times")
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print(" -x probe-name expect the probe to fail. When such probe passes despite being marked like this")
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print(" it will be reported in the test summary and the whole script will fail.")
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print(" May be specified multiple times.")
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print(" -X message expect the `message` substring in exception raised during")
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print(" execution of preceding expected failure probe")
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print(" usage: [-x probe-name] [-X exception], order is compulsory!")
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print(" -t timeout how long to wait before assuming the server won't")
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print(" send a message at incorrect time, 1.0s by default")
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print(" -n num run 'num' or all(if 0) tests instead of default(50)")
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print(" (excluding \"sanity\" tests)")
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print(" -a desc the expected alert description for invalid Finished")
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print(" messages - 20 (bad_record_mac) by default")
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print(" Note: other values are NOT RFC compliant!")
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print(" -l level the expected alert level for invalid Finished")
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print(" - 2 (fatal) by default")
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print(" Note: other values are NOT RFC compliant!")
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print(" --no-safe-renego Allow the server not to support safe")
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print(" renegotiation extension")
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print(" --no-sni do not send server name extension.")
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print(" Sends extension by default if the hostname is a")
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print(" valid DNS name, not an IP address")
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print(" --help this message")
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def main():
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"""Check if server is not vulnerable to Bleichenbacher attack"""
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host = "localhost"
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port = 4433
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num_limit = 50
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run_exclude = set()
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expected_failures = {}
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last_exp_tmp = None
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timeout = 1.0
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alert = AlertDescription.bad_record_mac
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level = AlertLevel.fatal
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srv_extensions = {ExtensionType.renegotiation_info:None}
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no_sni = False
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argv = sys.argv[1:]
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opts, args = getopt.getopt(argv, "h:p:e:x:X:t:n:a:l:", ["help",
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"no-safe-renego",
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"no-sni"])
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for opt, arg in opts:
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if opt == '-h':
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host = arg
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elif opt == '-p':
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port = int(arg)
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elif opt == '-e':
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run_exclude.add(arg)
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elif opt == '-x':
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expected_failures[arg] = None
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last_exp_tmp = str(arg)
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elif opt == '-X':
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if not last_exp_tmp:
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raise ValueError("-x has to be specified before -X")
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expected_failures[last_exp_tmp] = str(arg)
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elif opt == '-n':
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num_limit = int(arg)
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elif opt == '--help':
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help_msg()
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sys.exit(0)
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elif opt == '-t':
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timeout = float(arg)
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elif opt == '-a':
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alert = int(arg)
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elif opt == '-l':
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level = int(arg)
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elif opt == "--no-safe-renego":
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srv_extensions = None
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elif opt == "--no-sni":
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no_sni = True
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else:
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raise ValueError("Unknown option: {0}".format(opt))
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if args:
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run_only = set(args)
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else:
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run_only = None
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cln_extensions = {ExtensionType.renegotiation_info:None}
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if is_valid_hostname(host) and not no_sni:
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cln_extensions[ExtensionType.server_name] = \
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SNIExtension().create(bytearray(host, 'ascii'))
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conversations = {}
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conversation = Connect(host, port)
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node = conversation
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# don't care which cipher, as long as it uses RSA key exchange
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ciphers = list(CipherSuite.certSuites)
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator())
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectChangeCipherSpec())
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node = node.add_child(ExpectFinished())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(ExpectApplicationData())
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node = node.add_child(AlertGenerator(AlertLevel.warning,
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AlertDescription.close_notify))
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node = node.add_child(ExpectAlert())
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node.next_sibling = ExpectClose()
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node = node.add_child(ExpectClose())
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conversations["sanity"] = conversation
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for cipher in CipherSuite.certSuites:
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator())
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectChangeCipherSpec())
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node = node.add_child(ExpectFinished())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(ExpectApplicationData())
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node = node.add_child(AlertGenerator(AlertLevel.warning,
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AlertDescription.close_notify))
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node = node.add_child(ExpectAlert())
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node.next_sibling = ExpectClose()
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node = node.add_child(ExpectClose())
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conversations["sanity - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# check if a certain number doesn't trip up the server
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# (essentially a second sanity test)
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={2:1}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectChangeCipherSpec())
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node = node.add_child(ExpectFinished())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(ExpectApplicationData())
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node = node.add_child(AlertGenerator(AlertLevel.warning,
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AlertDescription.close_notify))
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node = node.add_child(ExpectAlert())
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node.next_sibling = ExpectClose()
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node = node.add_child(ExpectClose())
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conversations["static non-zero byte in random padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# set 2nd byte of padding to 3 (invalid value)
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(TCPBufferingEnable())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:3}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(TCPBufferingDisable())
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node = node.add_child(TCPBufferingFlush())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["set PKCS#1 padding type to 3 - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# set 2nd byte of padding to 3 (invalid value)
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:3}))
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["set PKCS#1 padding type to 3 - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# set 2nd byte of padding to 1 (signing)
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(TCPBufferingEnable())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:1}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(TCPBufferingDisable())
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node = node.add_child(TCPBufferingFlush())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["set PKCS#1 padding type to 1 - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# set 2nd byte of padding to 1 (signing)
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:1}))
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["set PKCS#1 padding type to 1 - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# test early zero in random data
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(TCPBufferingEnable())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={4:0}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(TCPBufferingDisable())
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node = node.add_child(TCPBufferingFlush())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["zero byte in random padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# test early zero in random data
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={4:0}))
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["zero byte in random padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# check if early padding separator is detected
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(TCPBufferingEnable())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-2:0}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(TCPBufferingDisable())
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node = node.add_child(TCPBufferingFlush())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["zero byte in last byte of random padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# check if early padding separator is detected
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-2:0}))
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(ExpectNoMessage(timeout))
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["zero byte in last byte of random padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# check if separator without any random padding is detected
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conversation = Connect(host, port)
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node = conversation
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ciphers = [cipher]
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node = node.add_child(ClientHelloGenerator(ciphers,
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extensions=cln_extensions))
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node = node.add_child(ExpectServerHello(extensions=srv_extensions))
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# in case the server does not support given cipher, it is acceptable
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# to abort connection here
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node.next_sibling = ExpectAlert(AlertLevel.fatal,
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AlertDescription.handshake_failure)
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node = node.add_child(ExpectCertificate())
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node = node.add_child(ExpectServerHelloDone())
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node = node.add_child(TCPBufferingEnable())
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node = node.add_child(ClientKeyExchangeGenerator(padding_subs={2:0}))
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node = node.add_child(ChangeCipherSpecGenerator())
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node = node.add_child(FinishedGenerator())
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node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
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node = node.add_child(TCPBufferingDisable())
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node = node.add_child(TCPBufferingFlush())
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node = node.add_child(ExpectAlert(level,
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alert))
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node.add_child(ExpectClose())
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conversations["zero byte in first byte of random padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
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# check if separator without any random padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={2:0}))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["zero byte in first byte of random padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if invalid first byte of encoded value is correctly detecte
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={0:1}))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["invalid version number in padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if invalid first byte of encoded value is correctly detecte
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={0:1}))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["invalid version number in padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no null separator in padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1}))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no null separator in padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no null separator in padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1}))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no null separator in padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no null separator in padding is detected
|
|
# but with PMS set to non-zero
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1]*48)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no null separator in encrypted value - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no null separator in padding is detected
|
|
# but with PMS set to non-zero
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1]*48)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no null separator in encrypted value - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1, 1])))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["two byte long PMS (TLS version only) - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1, 1])))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["two byte long PMS (TLS version only) - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no encrypted payload is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
# the TLS version is always set, so we mask the real padding separator
|
|
# and set the last byte of PMS to 0
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1, 1, 0])))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no encrypted value - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if no encrypted payload is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
# the TLS version is always set, so we mask the real padding separator
|
|
# and set the last byte of PMS to 0
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1, 1, 0])))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["no encrypted value - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short encrypted payload is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
# the TLS version is always set, so we mask the real padding separator
|
|
# and set the last byte of PMS to 0
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1, 1, 0, 3])))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["one byte encrypted value - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short encrypted payload is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
# the TLS version is always set, so we mask the real padding separator
|
|
# and set the last byte of PMS to 0
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={-1:1},
|
|
premaster_secret=bytearray([1, 1, 0, 3])))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["one byte encrypted value - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*47)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too short (47-byte) pre master secret - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*47)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too short (47-byte) pre master secret - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*4)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["very short (4-byte) pre master secret - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*4)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["very short (4-byte) pre master secret - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
|
|
# check if too long PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*49)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too long (49-byte) pre master secret - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too long PMS is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(premaster_secret=bytearray([1]*49)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too long (49-byte) pre master secret - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if wrong TLS version number is rejected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(client_version=(2, 2)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["wrong TLS version (2, 2) in pre master secret - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if wrong TLS version number is rejected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(client_version=(2, 2)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["wrong TLS version (2, 2) in pre master secret - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if wrong TLS version number is rejected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
node = node.add_child(ClientKeyExchangeGenerator(client_version=(0, 0)))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["wrong TLS version (0, 0) in pre master secret - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if wrong TLS version number is rejected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(ClientKeyExchangeGenerator(client_version=(0, 0)))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["wrong TLS version (0, 0) in pre master secret - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PKCS padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
# move the start of the padding forward, essentially encrypting two 0 bytes
|
|
# at the beginning of the padding, but since those are transformed into a number
|
|
# their existence is lost and it just like the padding was too small
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:0, 2:2}))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too short PKCS padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too short PKCS padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
# move the start of the padding forward, essentially encrypting two 0 bytes
|
|
# at the beginning of the padding, but since those are transformed into a number
|
|
# their existence is lost and it just like the padding was too small
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={1:0, 2:2}))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too short PKCS padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too long PKCS padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
node = node.add_child(TCPBufferingEnable())
|
|
# move the start of the padding backward, essentially encrypting no 0 bytes
|
|
# at the beginning of the padding, but since those are transformed into a number
|
|
# its lack is lost and it just like the padding was too big
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={0:2}))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
|
|
node = node.add_child(TCPBufferingDisable())
|
|
node = node.add_child(TCPBufferingFlush())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too long PKCS padding - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# check if too long PKCS padding is detected
|
|
conversation = Connect(host, port)
|
|
node = conversation
|
|
ciphers = [cipher]
|
|
node = node.add_child(ClientHelloGenerator(ciphers,
|
|
extensions=cln_extensions))
|
|
node = node.add_child(ExpectServerHello(extensions=srv_extensions))
|
|
# in case the server does not support given cipher, it is acceptable
|
|
# to abort connection here
|
|
node.next_sibling = ExpectAlert(AlertLevel.fatal,
|
|
AlertDescription.handshake_failure)
|
|
node = node.add_child(ExpectCertificate())
|
|
node = node.add_child(ExpectServerHelloDone())
|
|
# move the start of the padding backward, essentially encrypting no 0 bytes
|
|
# at the beginning of the padding, but since those are transformed into a number
|
|
# its lack is lost and it just like the padding was too big
|
|
node = node.add_child(ClientKeyExchangeGenerator(padding_subs={0:2}))
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(ChangeCipherSpecGenerator())
|
|
node = node.add_child(ExpectNoMessage(timeout))
|
|
node = node.add_child(FinishedGenerator())
|
|
node = node.add_child(ExpectAlert(level,
|
|
alert))
|
|
node.add_child(ExpectClose())
|
|
|
|
conversations["too long PKCS padding - with wait - {0}".format(CipherSuite.ietfNames[cipher])] = conversation
|
|
|
|
# run the conversation
|
|
good = 0
|
|
bad = 0
|
|
xfail = 0
|
|
xpass = 0
|
|
failed = []
|
|
xpassed = []
|
|
if not num_limit:
|
|
num_limit = len(conversations)
|
|
|
|
# make sure that sanity test is run first and last
|
|
# to verify that server was running and kept running throughout
|
|
sanity_tests = [('sanity', conversations['sanity'])]
|
|
if run_only:
|
|
if num_limit > len(run_only):
|
|
num_limit = len(run_only)
|
|
regular_tests = [(k, v) for k, v in conversations.items() if k in run_only]
|
|
else:
|
|
regular_tests = [(k, v) for k, v in conversations.items() if
|
|
(k != 'sanity') and k not in run_exclude]
|
|
sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
|
|
ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)
|
|
|
|
for c_name, c_test in ordered_tests:
|
|
print("{0} ...".format(c_name))
|
|
|
|
runner = Runner(c_test)
|
|
|
|
res = True
|
|
exception = None
|
|
try:
|
|
runner.run()
|
|
except Exception as exp:
|
|
exception = exp
|
|
print("Error while processing")
|
|
print(traceback.format_exc())
|
|
res = False
|
|
|
|
if c_name in expected_failures:
|
|
if res:
|
|
xpass += 1
|
|
xpassed.append(c_name)
|
|
print("XPASS-expected failure but test passed\n")
|
|
else:
|
|
if expected_failures[c_name] is not None and \
|
|
expected_failures[c_name] not in str(exception):
|
|
bad += 1
|
|
failed.append(c_name)
|
|
print("Expected error message: {0}\n"
|
|
.format(expected_failures[c_name]))
|
|
else:
|
|
xfail += 1
|
|
print("OK-expected failure\n")
|
|
else:
|
|
if res:
|
|
good += 1
|
|
print("OK\n")
|
|
else:
|
|
bad += 1
|
|
failed.append(c_name)
|
|
|
|
print("Test end")
|
|
print(20 * '=')
|
|
print("version: {0}".format(version))
|
|
print(20 * '=')
|
|
print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
|
|
print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
|
|
print("PASS: {0}".format(good))
|
|
print("XFAIL: {0}".format(xfail))
|
|
print("FAIL: {0}".format(bad))
|
|
print("XPASS: {0}".format(xpass))
|
|
print(20 * '=')
|
|
sort = sorted(xpassed ,key=natural_sort_keys)
|
|
if len(sort):
|
|
print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
|
|
sort = sorted(failed, key=natural_sort_keys)
|
|
if len(sort):
|
|
print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
|
|
|
|
if bad or xpass:
|
|
sys.exit(1)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|