Tests for SSL certs for federation connections

Add some tests for bad certificates for federation and .well-known connections
pull/5417/head
Richard van der Hoff 2019-06-10 16:06:25 +01:00
parent efe7b3176e
commit e016681221
6 changed files with 343 additions and 106 deletions

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@ -13,28 +13,124 @@
# See the License for the specific language governing permissions and
# limitations under the License.
import os.path
import subprocess
from zope.interface import implementer
from OpenSSL import SSL
from OpenSSL.SSL import Connection
from twisted.internet.interfaces import IOpenSSLServerConnectionCreator
def get_test_cert_file():
"""get the path to the test cert"""
def get_test_ca_cert_file():
"""Get the path to the test CA cert
# the cert file itself is made with:
#
# openssl req -x509 -newkey rsa:4096 -keyout server.pem -out server.pem -days 36500 \
# -nodes -subj '/CN=testserv'
return os.path.join(os.path.dirname(__file__), 'server.pem')
The keypair is generated with:
openssl genrsa -out ca.key 2048
openssl req -new -x509 -key ca.key -days 3650 -out ca.crt \
-subj '/CN=synapse test CA'
"""
return os.path.join(os.path.dirname(__file__), "ca.crt")
class ServerTLSContext(object):
"""A TLS Context which presents our test cert."""
def get_test_key_file():
"""get the path to the test key
def __init__(self):
self.filename = get_test_cert_file()
The key file is made with:
def getContext(self):
openssl genrsa -out server.key 2048
"""
return os.path.join(os.path.dirname(__file__), "server.key")
cert_file_count = 0
CONFIG_TEMPLATE = b"""\
[default]
basicConstraints = CA:FALSE
keyUsage=nonRepudiation, digitalSignature, keyEncipherment
subjectAltName = %(sanentries)b
"""
def create_test_cert_file(sanlist):
"""build an x509 certificate file
Args:
sanlist: list[bytes]: a list of subjectAltName values for the cert
Returns:
str: the path to the file
"""
global cert_file_count
csr_filename = "server.csr"
cnf_filename = "server.%i.cnf" % (cert_file_count,)
cert_filename = "server.%i.crt" % (cert_file_count,)
cert_file_count += 1
# first build a CSR
subprocess.run(
[
"openssl",
"req",
"-new",
"-key",
get_test_key_file(),
"-subj",
"/",
"-out",
csr_filename,
],
check=True,
)
# now a config file describing the right SAN entries
sanentries = b",".join(sanlist)
with open(cnf_filename, "wb") as f:
f.write(CONFIG_TEMPLATE % {b"sanentries": sanentries})
# finally the cert
ca_key_filename = os.path.join(os.path.dirname(__file__), "ca.key")
ca_cert_filename = get_test_ca_cert_file()
subprocess.run(
[
"openssl",
"x509",
"-req",
"-in",
csr_filename,
"-CA",
ca_cert_filename,
"-CAkey",
ca_key_filename,
"-set_serial",
"1",
"-extfile",
cnf_filename,
"-out",
cert_filename,
],
check=True,
)
return cert_filename
@implementer(IOpenSSLServerConnectionCreator)
class TestServerTLSConnectionFactory(object):
"""An SSL connection creator which returns connections which present a certificate
signed by our test CA."""
def __init__(self, sanlist):
"""
Args:
sanlist: list[bytes]: a list of subjectAltName values for the cert
"""
self._cert_file = create_test_cert_file(sanlist)
def serverConnectionForTLS(self, tlsProtocol):
ctx = SSL.Context(SSL.TLSv1_METHOD)
ctx.use_certificate_file(self.filename)
ctx.use_privatekey_file(self.filename)
return ctx
ctx.use_certificate_file(self._cert_file)
ctx.use_privatekey_file(get_test_key_file())
return Connection(ctx, None)

19
tests/http/ca.crt Normal file
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@ -0,0 +1,19 @@
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

27
tests/http/ca.key Normal file
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@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----
MIIEpgIBAAKCAQEA5k5cIq7KV/2MfMlelTadL5cQqucY+CzZICFAqvMHGDf93wpP
Zmx+yPWLcbuga7sHRko7qobkDE48KZIx/39qJIcWKV9KH6vysKknJYx6/Zz/D/Ga
GgUeCf4f3Q2eqVe9ZvnLVhkITeBZqK25BJpr3cY8ppxGpcKAivOM9S6F95O7AVC3
iLJSEw0FgTLdrDgi4gd3IGqLiehSFHZl65+Usno+zB0nyYSIC/EJsEY96uqJ2FZx
nCWjR8q7i7W67kHxOdOwyDZ8mAvpzmiUEb3RSu3baADpqd8/lb9TVl1WGYFPdG/l
IkyQbIwYTqwRR60sXJvYYmmAYPt4+RQJmv4gwwIDAQABAoIBAQCFuFG+wYYy+MCt
Y65LLN6vVyMSWAQjdMbM5QHLQDiKU1hQPIhFjBFBVXCVpL9MTde3dDqYlKGsk3BT
ItNs6eoTM2wmsXE0Wn4bHNvh7WMsBhACjeFP4lDCtI6DpvjMkmkidT8eyoIL1Yu5
aMTYa2Dd79AfXPWYIQrJowfhBBY83KuW5fmYnKKDVLqkT9nf2dgmmQz85RgtNiZC
zFkIsNmPqH1zRbcw0wORfOBrLFvsMc4Tt8EY5Wz3NnH8Zfgf8Q3MgARH1yspz3Vp
B+EYHbsK17xZ+P59KPiX3yefvyYWEUjFF7ymVsVnDxLugYl4pXwWUpm19GxeDvFk
cgBUD5OBAoGBAP7lBdCp6lx6fYtxdxUm3n4MMQmYcac4qZdeBIrvpFMnvOBBuixl
eavcfFmFdwgAr8HyVYiu9ynac504IYvmtYlcpUmiRBbmMHbvLQEYHl7FYFKNz9ej
2ue4oJE3RsPdLsD3xIlc+xN8oT1j0knyorwsHdj0Sv77eZzZS9XZZfJzAoGBAOdO
CibYmoNqK/mqDHkp6PgsnbQGD5/CvPF/BLUWV1QpHxLzUQQeoBOQW5FatHe1H5zi
mbq3emBefVmsCLrRIJ4GQu4vsTMfjcpGLwviWmaK6pHbGPt8IYeEQ2MNyv59EtA2
pQy4dX7/Oe6NLAR1UEQjXmCuXf+rxnxF3VJd1nRxAoGBANb9eusl9fusgSnVOTjJ
AQ7V36KVRv9hZoG6liBNwo80zDVmms4JhRd1MBkd3mkMkzIF4SkZUnWlwLBSANGM
dX/3eZ5i1AVwgF5Am/f5TNxopDbdT/o1RVT/P8dcFT7s1xuBn+6wU0F7dFBgWqVu
lt4aY85zNrJcj5XBHhqwdDGLAoGBAIksPNUAy9F3m5C6ih8o/aKAQx5KIeXrBUZq
v43tK+kbYfRJHBjHWMOBbuxq0G/VmGPf9q9GtGqGXuxZG+w+rYtJx1OeMQZShjIZ
ITl5CYeahrXtK4mo+fF2PMh3m5UE861LWuKKWhPwpJiWXC5grDNcjlHj1pcTdeip
PjHkuJPhAoGBAIh35DptqqdicOd3dr/+/m2YQywY8aSpMrR0bC06aAkscD7oq4tt
s/jwl0UlHIrEm/aMN7OnGIbpfkVdExfGKYaa5NRlgOwQpShwLufIo/c8fErd2zb8
K3ptlwBxMrayMXpS3DP78r83Z0B8/FSK2guelzdRJ3ftipZ9io1Gss1C
-----END RSA PRIVATE KEY-----

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@ -17,12 +17,14 @@ import logging
from mock import Mock
import treq
from service_identity import VerificationError
from zope.interface import implementer
from twisted.internet import defer
from twisted.internet._sslverify import ClientTLSOptions, OpenSSLCertificateOptions
from twisted.internet.protocol import Factory
from twisted.protocols.tls import TLSMemoryBIOFactory
from twisted.web._newclient import ResponseNeverReceived
from twisted.web.http import HTTPChannel
from twisted.web.http_headers import Headers
from twisted.web.iweb import IPolicyForHTTPS
@ -37,13 +39,29 @@ from synapse.http.federation.srv_resolver import Server
from synapse.util.caches.ttlcache import TTLCache
from synapse.util.logcontext import LoggingContext
from tests.http import ServerTLSContext
from tests.http import TestServerTLSConnectionFactory, get_test_ca_cert_file
from tests.server import FakeTransport, ThreadedMemoryReactorClock
from tests.unittest import TestCase
from tests.utils import default_config
logger = logging.getLogger(__name__)
test_server_connection_factory = None
def get_connection_factory():
# this needs to happen once, but not until we are ready to run the first test
global test_server_connection_factory
if test_server_connection_factory is None:
test_server_connection_factory = TestServerTLSConnectionFactory(sanlist=[
b'DNS:testserv',
b'DNS:target-server',
b'DNS:xn--bcher-kva.com',
b'IP:1.2.3.4',
b'IP:::1',
])
return test_server_connection_factory
class MatrixFederationAgentTests(TestCase):
def setUp(self):
@ -53,12 +71,11 @@ class MatrixFederationAgentTests(TestCase):
self.well_known_cache = TTLCache("test_cache", timer=self.reactor.seconds)
# for now, we disable cert verification for the test, since the cert we
# present will not be trusted. We should do better here, though.
config_dict = default_config("test", parse=False)
config_dict["federation_verify_certificates"] = False
config_dict["trusted_key_servers"] = []
config = HomeServerConfig()
config_dict["federation_custom_ca_list"] = [get_test_ca_cert_file()]
# config_dict["trusted_key_servers"] = []
self._config = config = HomeServerConfig()
config.parse_config_dict(config_dict)
self.agent = MatrixFederationAgent(
@ -77,7 +94,7 @@ class MatrixFederationAgentTests(TestCase):
"""
# build the test server
server_tls_protocol = _build_test_server()
server_tls_protocol = _build_test_server(get_connection_factory())
# now, tell the client protocol factory to build the client protocol (it will be a
# _WrappingProtocol, around a TLSMemoryBIOProtocol, around an
@ -328,6 +345,88 @@ class MatrixFederationAgentTests(TestCase):
self.reactor.pump((0.1,))
self.successResultOf(test_d)
def test_get_hostname_bad_cert(self):
"""
Test the behaviour when the certificate on the server doesn't match the hostname
"""
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.reactor.lookups["testserv1"] = "1.2.3.4"
test_d = self._make_get_request(b"matrix://testserv1/foo/bar")
# Nothing happened yet
self.assertNoResult(test_d)
# No SRV record lookup yet
self.mock_resolver.resolve_service.assert_not_called()
# there should be an attempt to connect on port 443 for the .well-known
clients = self.reactor.tcpClients
self.assertEqual(len(clients), 1)
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
self.assertEqual(host, '1.2.3.4')
self.assertEqual(port, 443)
# fonx the connection
client_factory.clientConnectionFailed(None, Exception("nope"))
# attemptdelay on the hostnameendpoint is 0.3, so takes that long before the
# .well-known request fails.
self.reactor.pump((0.4,))
# now there should be a SRV lookup
self.mock_resolver.resolve_service.assert_called_once_with(
b"_matrix._tcp.testserv1"
)
# we should fall back to a direct connection
self.assertEqual(len(clients), 2)
(host, port, client_factory, _timeout, _bindAddress) = clients[1]
self.assertEqual(host, '1.2.3.4')
self.assertEqual(port, 8448)
# make a test server, and wire up the client
http_server = self._make_connection(client_factory, expected_sni=b'testserv1')
# there should be no requests
self.assertEqual(len(http_server.requests), 0)
# ... and the request should have failed
e = self.failureResultOf(test_d, ResponseNeverReceived)
failure_reason = e.value.reasons[0]
self.assertIsInstance(failure_reason.value, VerificationError)
def test_get_ip_address_bad_cert(self):
"""
Test the behaviour when the server name contains an explicit IP, but
the server cert doesn't cover it
"""
# there will be a getaddrinfo on the IP
self.reactor.lookups["1.2.3.5"] = "1.2.3.5"
test_d = self._make_get_request(b"matrix://1.2.3.5/foo/bar")
# Nothing happened yet
self.assertNoResult(test_d)
# Make sure treq is trying to connect
clients = self.reactor.tcpClients
self.assertEqual(len(clients), 1)
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
self.assertEqual(host, '1.2.3.5')
self.assertEqual(port, 8448)
# make a test server, and wire up the client
http_server = self._make_connection(client_factory, expected_sni=None)
# there should be no requests
self.assertEqual(len(http_server.requests), 0)
# ... and the request should have failed
e = self.failureResultOf(test_d, ResponseNeverReceived)
failure_reason = e.value.reasons[0]
self.assertIsInstance(failure_reason.value, VerificationError)
def test_get_no_srv_no_well_known(self):
"""
Test the behaviour when the server name has no port, no SRV, and no well-known
@ -585,6 +684,49 @@ class MatrixFederationAgentTests(TestCase):
self.reactor.pump((0.1,))
self.successResultOf(test_d)
def test_get_well_known_unsigned_cert(self):
"""Test the behaviour when the .well-known server presents a cert
not signed by a CA
"""
# we use the same test server as the other tests, but use an agent
# with _well_known_tls_policy left to the default, which will not
# trust it (since the presented cert is signed by a test CA)
self.mock_resolver.resolve_service.side_effect = lambda _: []
self.reactor.lookups["testserv"] = "1.2.3.4"
agent = MatrixFederationAgent(
reactor=self.reactor,
tls_client_options_factory=ClientTLSOptionsFactory(self._config),
_srv_resolver=self.mock_resolver,
_well_known_cache=self.well_known_cache,
)
test_d = agent.request(b"GET", b"matrix://testserv/foo/bar")
# Nothing happened yet
self.assertNoResult(test_d)
# there should be an attempt to connect on port 443 for the .well-known
clients = self.reactor.tcpClients
self.assertEqual(len(clients), 1)
(host, port, client_factory, _timeout, _bindAddress) = clients[0]
self.assertEqual(host, '1.2.3.4')
self.assertEqual(port, 443)
http_proto = self._make_connection(
client_factory, expected_sni=b"testserv",
)
# there should be no requests
self.assertEqual(len(http_proto.requests), 0)
# and there should be a SRV lookup instead
self.mock_resolver.resolve_service.assert_called_once_with(
b"_matrix._tcp.testserv"
)
def test_get_hostname_srv(self):
"""
Test the behaviour when there is a single SRV record
@ -918,11 +1060,17 @@ def _check_logcontext(context):
raise AssertionError("Expected logcontext %s but was %s" % (context, current))
def _build_test_server():
def _build_test_server(connection_creator):
"""Construct a test server
This builds an HTTP channel, wrapped with a TLSMemoryBIOProtocol
Args:
connection_creator (IOpenSSLServerConnectionCreator): thing to build
SSL connections
sanlist (list[bytes]): list of the SAN entries for the cert returned
by the server
Returns:
TLSMemoryBIOProtocol
"""
@ -931,7 +1079,7 @@ def _build_test_server():
server_factory.log = _log_request
server_tls_factory = TLSMemoryBIOFactory(
ServerTLSContext(), isClient=False, wrappedFactory=server_factory
connection_creator, isClient=False, wrappedFactory=server_factory
)
return server_tls_factory.buildProtocol(None)
@ -944,7 +1092,8 @@ def _log_request(request):
@implementer(IPolicyForHTTPS)
class TrustingTLSPolicyForHTTPS(object):
"""An IPolicyForHTTPS which doesn't do any certificate verification"""
"""An IPolicyForHTTPS which checks that the certificate belongs to the
right server, but doesn't check the certificate chain."""
def creatorForNetloc(self, hostname, port):
certificateOptions = OpenSSLCertificateOptions()

27
tests/http/server.key Normal file
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@ -0,0 +1,27 @@
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----

View File

@ -1,81 +0,0 @@
-----BEGIN PRIVATE KEY-----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gNYaIx6q8F0fI4eGIPvTQtUcqur4CfWpaxyNvckdovV6M85/YXfDwbCOnacPDGIX
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KILVFsq3cQC+bEnoM4eVbjEQkGs1RQ==
-----END PRIVATE KEY-----
-----BEGIN CERTIFICATE-----
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f0ytW6qZ0TpHbD6gOtQLYDnhx3ISuX+QYSekVwQUpffeWQ==
-----END CERTIFICATE-----