1# $OpenBSD: tlsfuzzer.py,v 1.49 2023/06/10 05:00:58 tb Exp $ 2# 3# Copyright (c) 2020 Theo Buehler <tb@openbsd.org> 4# 5# Permission to use, copy, modify, and distribute this software for any 6# purpose with or without fee is hereby granted, provided that the above 7# copyright notice and this permission notice appear in all copies. 8# 9# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16 17import getopt 18import os 19import subprocess 20import sys 21from timeit import default_timer as timer 22 23tlsfuzzer_scriptdir = "/usr/local/share/tlsfuzzer/scripts/" 24 25class Test: 26 """ 27 Represents a tlsfuzzer test script. 28 name: the script's name 29 args: arguments to feed to the script 30 tls12_args: override args for a TLSv1.2 server 31 tls13_args: override args for a TLSv1.3 server 32 33 XXX Add client cert support. 34 """ 35 def __init__(self, name="", args=[], tls12_args=[], tls13_args=[]): 36 self.name = name 37 self.tls12_args = args 38 self.tls13_args = args 39 if tls12_args: 40 self.tls12_args = tls12_args 41 if tls13_args: 42 self.tls13_args = tls13_args 43 44 def args(self, has_tls1_3: True): 45 if has_tls1_3: 46 return self.tls13_args 47 else: 48 return self.tls12_args 49 50 def __repr__(self): 51 return "<Test: %s tls12_args: %s tls13_args: %s>" % ( 52 self.name, self.tls12_args, self.tls13_args 53 ) 54 55class TestGroup: 56 """ A group of Test objects to be run by TestRunner.""" 57 def __init__(self, title="Tests", tests=[]): 58 self.title = title 59 self.tests = tests 60 61 def __iter__(self): 62 return iter(self.tests) 63 64# argument to pass to several tests 65tls13_unsupported_ciphers = [ 66 "-e", "TLS 1.3 with ffdhe2048", 67 "-e", "TLS 1.3 with ffdhe3072", 68 "-e", "TLS 1.3 with x448", 69] 70 71def substitute_alert(want, got): 72 return f"Expected alert description \"{want}\" " \ 73 + f"does not match received \"{got}\"" 74 75# test-tls13-finished.py has 70 failing tests that expect a "decode_error" 76# instead of the "decrypt_error" sent by tls13_server_finished_recv(). 77# Both alerts appear to be reasonable in this context, so work around this 78# in the test instead of the library. 79def generate_test_tls13_finished_args(): 80 assertion = substitute_alert("decode_error", "decrypt_error"); 81 paddings = [ 82 ("TLS_AES_128_GCM_SHA256", 0, 1), 83 ("TLS_AES_128_GCM_SHA256", 0, 2), 84 ("TLS_AES_128_GCM_SHA256", 0, 4), 85 ("TLS_AES_128_GCM_SHA256", 0, 8), 86 ("TLS_AES_128_GCM_SHA256", 0, 16), 87 ("TLS_AES_128_GCM_SHA256", 0, 32), 88 ("TLS_AES_128_GCM_SHA256", 0, 48), 89 ("TLS_AES_128_GCM_SHA256", 0, 2**14-4-32), 90 ("TLS_AES_128_GCM_SHA256", 0, 0x20000), 91 ("TLS_AES_128_GCM_SHA256", 0, 0x30000), 92 ("TLS_AES_128_GCM_SHA256", 1, 0), 93 ("TLS_AES_128_GCM_SHA256", 2, 0), 94 ("TLS_AES_128_GCM_SHA256", 4, 0), 95 ("TLS_AES_128_GCM_SHA256", 8, 0), 96 ("TLS_AES_128_GCM_SHA256", 16, 0), 97 ("TLS_AES_128_GCM_SHA256", 32, 0), 98 ("TLS_AES_128_GCM_SHA256", 48, 0), 99 ("TLS_AES_128_GCM_SHA256", 2**14-4-32, 0), 100 ("TLS_AES_128_GCM_SHA256", 12, 0), 101 ("TLS_AES_128_GCM_SHA256", 1, 1), 102 ("TLS_AES_128_GCM_SHA256", 8, 8), 103 ("TLS_AES_256_GCM_SHA384", 0, 1), 104 ("TLS_AES_256_GCM_SHA384", 0, 2), 105 ("TLS_AES_256_GCM_SHA384", 0, 4), 106 ("TLS_AES_256_GCM_SHA384", 0, 8), 107 ("TLS_AES_256_GCM_SHA384", 0, 16), 108 ("TLS_AES_256_GCM_SHA384", 0, 32), 109 ("TLS_AES_256_GCM_SHA384", 0, 48), 110 ("TLS_AES_256_GCM_SHA384", 0, 2**14-4-48), 111 ("TLS_AES_256_GCM_SHA384", 0, 0x20000), 112 ("TLS_AES_256_GCM_SHA384", 0, 0x30000), 113 ("TLS_AES_256_GCM_SHA384", 0, 12), 114 ("TLS_AES_256_GCM_SHA384", 1, 0), 115 ("TLS_AES_256_GCM_SHA384", 2, 0), 116 ("TLS_AES_256_GCM_SHA384", 4, 0), 117 ("TLS_AES_256_GCM_SHA384", 8, 0), 118 ("TLS_AES_256_GCM_SHA384", 16, 0), 119 ("TLS_AES_256_GCM_SHA384", 32, 0), 120 ("TLS_AES_256_GCM_SHA384", 48, 0), 121 ("TLS_AES_256_GCM_SHA384", 2**14-4-48, 0), 122 ("TLS_AES_256_GCM_SHA384", 1, 1), 123 ("TLS_AES_256_GCM_SHA384", 8, 8), 124 ] 125 truncations = [ 126 ("TLS_AES_128_GCM_SHA256", 0, -1), 127 ("TLS_AES_128_GCM_SHA256", 0, -2), 128 ("TLS_AES_128_GCM_SHA256", 0, -4), 129 ("TLS_AES_128_GCM_SHA256", 0, -8), 130 ("TLS_AES_128_GCM_SHA256", 0, -16), 131 ("TLS_AES_128_GCM_SHA256", 0, -32), 132 ("TLS_AES_128_GCM_SHA256", 0, 12), 133 ("TLS_AES_128_GCM_SHA256", 1, None), 134 ("TLS_AES_128_GCM_SHA256", 2, None), 135 ("TLS_AES_128_GCM_SHA256", 4, None), 136 ("TLS_AES_128_GCM_SHA256", 8, None), 137 ("TLS_AES_128_GCM_SHA256", 16, None), 138 ("TLS_AES_128_GCM_SHA256", 32, None), 139 ("TLS_AES_256_GCM_SHA384", 0, -1), 140 ("TLS_AES_256_GCM_SHA384", 0, -2), 141 ("TLS_AES_256_GCM_SHA384", 0, -4), 142 ("TLS_AES_256_GCM_SHA384", 0, -8), 143 ("TLS_AES_256_GCM_SHA384", 0, -16), 144 ("TLS_AES_256_GCM_SHA384", 0, -32), 145 ("TLS_AES_256_GCM_SHA384", 0, 12), 146 ("TLS_AES_256_GCM_SHA384", 1, None), 147 ("TLS_AES_256_GCM_SHA384", 2, None), 148 ("TLS_AES_256_GCM_SHA384", 4, None), 149 ("TLS_AES_256_GCM_SHA384", 8, None), 150 ("TLS_AES_256_GCM_SHA384", 16, None), 151 ("TLS_AES_256_GCM_SHA384", 32, None), 152 ] 153 154 args = [ 155 "-x", "empty - cipher TLS_AES_128_GCM_SHA256", "-X", assertion, 156 "-x", "empty - cipher TLS_AES_256_GCM_SHA384", "-X", assertion, 157 ] 158 padding_fmt = "padding - cipher %s, pad_byte 0, pad_left %d, pad_right %d" 159 for padding in paddings: 160 args += ["-x", padding_fmt % padding, "-X", assertion] 161 truncation_fmt = "truncation - cipher %s, start %d, end %s" 162 for truncation in truncations: 163 args += ["-x", truncation_fmt % truncation, "-X", assertion] 164 return args 165 166tls13_tests = TestGroup("TLSv1.3 tests", [ 167 Test("test-tls13-ccs.py"), 168 Test("test-tls13-conversation.py"), 169 Test("test-tls13-count-tickets.py"), 170 Test("test-tls13-empty-alert.py"), 171 Test("test-tls13-finished.py", generate_test_tls13_finished_args()), 172 Test("test-tls13-finished-plaintext.py"), 173 Test("test-tls13-hrr.py"), 174 Test("test-tls13-keyshare-omitted.py"), 175 Test("test-tls13-legacy-version.py"), 176 Test("test-tls13-nociphers.py"), 177 Test("test-tls13-record-padding.py"), 178 # Exclude QUIC transport parameters 179 Test("test-tls13-shuffled-extentions.py", [ "--exc", "57" ]), 180 Test("test-tls13-zero-content-type.py"), 181 182 # The skipped tests fail due to a bug in BIO_gets() which masks the retry 183 # signalled from an SSL_read() failure. Testing with httpd(8) shows we're 184 # handling these corner cases correctly since tls13_record_layer.c -r1.47. 185 Test("test-tls13-zero-length-data.py", [ 186 "-e", "zero-length app data", 187 "-e", "zero-length app data with large padding", 188 "-e", "zero-length app data with padding", 189 ]), 190 191 # We don't currently handle NSTs 192 Test("test-tls13-connection-abort.py", ["-e", "After NewSessionTicket"]), 193]) 194 195# Tests that take a lot of time (> ~30s on an x280) 196tls13_slow_tests = TestGroup("slow TLSv1.3 tests", [ 197 # XXX: Investigate the occasional message 198 # "Got shared secret with 1 most significant bytes equal to zero." 199 Test("test-tls13-dhe-shared-secret-padding.py", tls13_unsupported_ciphers), 200 201 Test("test-tls13-invalid-ciphers.py"), 202 Test("test-tls13-serverhello-random.py", tls13_unsupported_ciphers), 203 204 # Mark two tests cases as xfail for now. The tests expect an arguably 205 # correct decode_error while we send a decrypt_error (like fizz/boring). 206 Test("test-tls13-record-layer-limits.py", [ 207 "-x", "max size payload (2**14) of Finished msg, with 16348 bytes of left padding, cipher TLS_AES_128_GCM_SHA256", 208 "-X", substitute_alert("decode_error", "decrypt_error"), 209 "-x", "max size payload (2**14) of Finished msg, with 16348 bytes of left padding, cipher TLS_CHACHA20_POLY1305_SHA256", 210 "-X", substitute_alert("decode_error", "decrypt_error"), 211 ]), 212 # We don't accept an empty ECPF extension since it must advertise the 213 # uncompressed point format. Exclude this extension type from the test. 214 # Also exclude QUIC transport parameters. 215 Test( 216 "test-tls13-large-number-of-extensions.py", 217 tls13_args = ["--exc", "11", "--exc", "57"], 218 ), 219]) 220 221tls13_extra_cert_tests = TestGroup("TLSv1.3 certificate tests", [ 222 # need to set up client certs to run these 223 Test("test-tls13-certificate-request.py"), 224 Test("test-tls13-certificate-verify.py"), 225 Test("test-tls13-ecdsa-in-certificate-verify.py"), 226 Test("test-tls13-eddsa-in-certificate-verify.py"), 227 228 # Test expects the server to have installed three certificates: 229 # with P-256, P-384 and P-521 curve. Also SHA1+ECDSA is verified 230 # to not work. 231 Test("test-tls13-ecdsa-support.py"), 232]) 233 234tls13_failing_tests = TestGroup("failing TLSv1.3 tests", [ 235 # Some tests fail because we fail later than the scripts expect us to. 236 # With X25519, we accept weak peer public keys and fail when we actually 237 # compute the keyshare. Other tests seem to indicate that we could be 238 # stricter about what keyshares we accept. 239 Test("test-tls13-crfg-curves.py", [ 240 '-e', 'all zero x448 key share', 241 '-e', 'empty x448 key share', 242 '-e', 'sanity x448 with compression ansiX962_compressed_char2', 243 '-e', 'sanity x448 with compression ansiX962_compressed_prime', 244 '-e', 'sanity x448 with compression uncompressed', 245 '-e', 'too big x448 key share', 246 '-e', 'too small x448 key share', 247 '-e', 'x448 key share of "1"', 248 ]), 249 Test("test-tls13-ecdhe-curves.py", [ 250 '-e', 'sanity - x448', 251 '-e', 'x448 - key share from other curve', 252 '-e', 'x448 - point at infinity', 253 '-e', 'x448 - right 0-padded key_share', 254 '-e', 'x448 - right-truncated key_share', 255 ]), 256 257 # The test sends records with protocol version 0x0300 instead of 0x0303 258 # and currently fails with OpenSSL and LibreSSL for this reason. 259 # We have the logic corresponding to NSS's fix for CVE-2020-25648 260 # https://hg.mozilla.org/projects/nss/rev/57bbefa793232586d27cee83e74411171e128361 261 # so should not be affected by this issue. 262 Test("test-tls13-multiple-ccs-messages.py"), 263 264 # https://github.com/openssl/openssl/issues/8369 265 Test("test-tls13-obsolete-curves.py"), 266 267 # 3 failing rsa_pss_pss tests 268 Test("test-tls13-rsa-signatures.py"), 269 270 # The failing tests all expect an ri extension. What's up with that? 271 Test("test-tls13-version-negotiation.py"), 272]) 273 274tls13_slow_failing_tests = TestGroup("slow, failing TLSv1.3 tests", [ 275 # Other test failures bugs in keyshare/tlsext negotiation? 276 Test("test-tls13-unrecognised-groups.py"), # unexpected closure 277 278 # 5 occasional failures: 279 # 'app data split, conversation with KeyUpdate msg' 280 # 'fragmented keyupdate msg' 281 # 'multiple KeyUpdate messages' 282 # 'post-handshake KeyUpdate msg with update_not_request' 283 # 'post-handshake KeyUpdate msg with update_request' 284 Test("test-tls13-keyupdate.py"), 285 286 Test("test-tls13-symetric-ciphers.py"), # unexpected message from peer 287 288 # 6 tests fail: 'rsa_pkcs1_{md5,sha{1,224,256,384,512}} signature' 289 # We send server hello, but the test expects handshake_failure 290 Test("test-tls13-pkcs-signature.py"), 291 # 8 tests fail: 'tls13 signature rsa_pss_{pss,rsae}_sha{256,384,512} 292 Test("test-tls13-rsapss-signatures.py"), 293]) 294 295tls13_unsupported_tests = TestGroup("TLSv1.3 tests for unsupported features", [ 296 # Tests for features we don't support 297 Test("test-tls13-0rtt-garbage.py"), 298 Test("test-tls13-ffdhe-groups.py"), 299 Test("test-tls13-ffdhe-sanity.py"), 300 Test("test-tls13-psk_dhe_ke.py"), 301 Test("test-tls13-psk_ke.py"), 302 303 # need server to react to HTTP GET for /keyupdate 304 Test("test-tls13-keyupdate-from-server.py"), 305 306 # needs an echo server 307 Test("test-tls13-lengths.py"), 308 309 # Weird test: tests servers that don't support 1.3 310 Test("test-tls13-non-support.py"), 311 312 # broken test script 313 # UnboundLocalError: local variable 'cert' referenced before assignment 314 Test("test-tls13-post-handshake-auth.py"), 315 316 # ExpectNewSessionTicket 317 Test("test-tls13-session-resumption.py"), 318 319 # Server must be configured to support only rsa_pss_rsae_sha512 320 Test("test-tls13-signature-algorithms.py"), 321]) 322 323tls12_exclude_legacy_protocols = [ 324 # all these have BIO_read timeouts against TLSv1.3 325 "-e", "Protocol (3, 0)", 326 "-e", "Protocol (3, 0) in SSLv2 compatible ClientHello", 327 # the following only fail with TLSv1.3 328 "-e", "Protocol (3, 1) in SSLv2 compatible ClientHello", 329 "-e", "Protocol (3, 2) in SSLv2 compatible ClientHello", 330 "-e", "Protocol (3, 3) in SSLv2 compatible ClientHello", 331 "-e", "Protocol (3, 1) with x448 group", 332 "-e", "Protocol (3, 2) with x448 group", 333 "-e", "Protocol (3, 3) with x448 group", 334] 335 336tls12_tests = TestGroup("TLSv1.2 tests", [ 337 # Tests that pass as they are. 338 Test("test-TLSv1_2-rejected-without-TLSv1_2.py"), 339 Test("test-aes-gcm-nonces.py"), 340 Test("test-chacha20.py"), 341 Test("test-connection-abort.py"), 342 Test("test-conversation.py"), 343 Test("test-cve-2016-2107.py"), 344 Test("test-cve-2016-6309.py"), 345 Test("test-dhe-rsa-key-exchange.py"), 346 Test("test-dhe-rsa-key-exchange-with-bad-messages.py"), 347 Test("test-early-application-data.py"), 348 Test("test-empty-extensions.py"), 349 Test("test-extensions.py"), 350 Test("test-fuzzed-MAC.py"), 351 Test("test-fuzzed-ciphertext.py"), 352 Test("test-fuzzed-finished.py"), 353 Test("test-fuzzed-padding.py"), 354 Test("test-fuzzed-plaintext.py"), # fails once in a while 355 Test("test-hello-request-by-client.py"), 356 Test("test-invalid-cipher-suites.py"), 357 Test("test-invalid-content-type.py"), 358 Test("test-invalid-session-id.py"), 359 Test("test-invalid-version.py"), 360 Test("test-lucky13.py"), 361 Test("test-message-skipping.py"), 362 Test("test-no-heartbeat.py"), 363 Test("test-record-layer-fragmentation.py"), 364 Test("test-sessionID-resumption.py"), 365 Test("test-sslv2-connection.py"), 366 Test("test-truncating-of-finished.py"), 367 Test("test-truncating-of-kRSA-client-key-exchange.py"), 368 Test("test-unsupported-curve-fallback.py"), 369 Test("test-version-numbers.py"), 370 Test("test-zero-length-data.py"), 371 372 # Tests that need tweaking for unsupported features and ciphers. 373 Test( 374 "test-atypical-padding.py", [ 375 "-e", "sanity - encrypt then MAC", 376 "-e", "2^14 bytes of AppData with 256 bytes of padding (SHA1 + Encrypt then MAC)", 377 ] 378 ), 379 Test( 380 "test-dhe-rsa-key-exchange-signatures.py", [ 381 "-e", "TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA sha224 signature", 382 "-e", "TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 sha224 signature", 383 "-e", "TLS_DHE_RSA_WITH_AES_128_CBC_SHA sha224 signature", 384 "-e", "TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 sha224 signature", 385 "-e", "TLS_DHE_RSA_WITH_AES_256_CBC_SHA sha224 signature", 386 ] 387 ), 388 Test("test-dhe-key-share-random.py", tls12_exclude_legacy_protocols), 389 Test("test-export-ciphers-rejected.py", ["--min-ver", "TLSv1.0"]), 390 Test( 391 "test-downgrade-protection.py", 392 tls12_args = ["--server-max-protocol", "TLSv1.2"], 393 tls13_args = ["--server-max-protocol", "TLSv1.3"], 394 ), 395 Test("test-fallback-scsv.py", tls13_args = ["--tls-1.3"] ), 396 397 Test("test-invalid-compression-methods.py", [ 398 "-x", "invalid compression methods", 399 "-X", substitute_alert("illegal_parameter", "decode_error"), 400 "-x", "only deflate compression method", 401 "-X", substitute_alert("illegal_parameter", "decode_error"), 402 ]), 403 404 # Skip extended_master_secret test. Since we don't support this 405 # extension, we don't notice that it was dropped. 406 Test("test-renegotiation-changed-clienthello.py", [ 407 "-e", "drop extended_master_secret in renegotiation", 408 ]), 409 410 # Without --sig-algs-drop-ok, two tests fail since we do not currently 411 # implement the signature_algorithms_cert extension (although we MUST). 412 Test("test-sig-algs-renegotiation-resumption.py", ["--sig-algs-drop-ok"]), 413 414 Test("test-serverhello-random.py", args = tls12_exclude_legacy_protocols), 415]) 416 417tls12_slow_tests = TestGroup("slow TLSv1.2 tests", [ 418 Test("test-cve-2016-7054.py"), 419 Test("test-dhe-no-shared-secret-padding.py", tls12_exclude_legacy_protocols), 420 Test("test-ecdhe-padded-shared-secret.py", tls12_exclude_legacy_protocols), 421 Test("test-ecdhe-rsa-key-share-random.py", tls12_exclude_legacy_protocols), 422 # Start at extension number 58 to avoid QUIC transport parameters (57) 423 Test("test-large-hello.py", [ "-m", "58" ]), 424]) 425 426tls12_failing_tests = TestGroup("failing TLSv1.2 tests", [ 427 # no shared cipher 428 Test("test-aesccm.py"), 429 # need server to set up alpn 430 Test("test-alpn-negotiation.py"), 431 # Failing on TLS_RSA_WITH_AES_128_CBC_SHA because server does not support it. 432 Test("test-bleichenbacher-timing-pregenerate.py"), 433 # many tests fail due to unexpected server_name extension 434 Test("test-bleichenbacher-workaround.py"), 435 436 # need client key and cert plus extra server setup 437 Test("test-certificate-malformed.py"), 438 Test("test-certificate-request.py"), 439 Test("test-certificate-verify-malformed-sig.py"), 440 Test("test-certificate-verify-malformed.py"), 441 Test("test-certificate-verify.py"), 442 Test("test-ecdsa-in-certificate-verify.py"), 443 Test("test-eddsa-in-certificate-verify.py"), 444 Test("test-renegotiation-disabled-client-cert.py"), 445 Test("test-rsa-pss-sigs-on-certificate-verify.py"), 446 Test("test-rsa-sigs-on-certificate-verify.py"), 447 448 # test doesn't expect session ticket 449 Test("test-client-compatibility.py"), 450 # abrupt closure 451 Test("test-client-hello-max-size.py"), 452 # unknown signature algorithms 453 Test("test-clienthello-md5.py"), 454 455 # Tests expect an illegal_parameter or a decode_error alert. Should be 456 # added to ssl3_get_client_key_exchange on kex function failure. 457 Test("test-ecdhe-rsa-key-exchange-with-bad-messages.py"), 458 459 # We send a handshake_failure due to no shared ciphers while the 460 # test expects to succeed. 461 Test("test-ecdhe-rsa-key-exchange.py"), 462 463 # no shared cipher 464 Test("test-ecdsa-sig-flexibility.py"), 465 466 # Tests expect SH but we send unexpected_message or handshake_failure 467 # 'Application data inside Client Hello' 468 # 'Application data inside Client Key Exchange' 469 # 'Application data inside Finished' 470 Test("test-interleaved-application-data-and-fragmented-handshakes-in-renegotiation.py"), 471 # Tests expect SH but we send handshake_failure 472 # 'Application data before Change Cipher Spec' 473 # 'Application data before Client Key Exchange' 474 # 'Application data before Finished' 475 Test("test-interleaved-application-data-in-renegotiation.py"), 476 477 # broken test script 478 # TypeError: '<' not supported between instances of 'int' and 'NoneType' 479 Test("test-invalid-client-hello-w-record-overflow.py"), 480 481 # Lots of failures. abrupt closure 482 Test("test-invalid-client-hello.py"), 483 484 # abrupt closure 485 # 'encrypted premaster set to all zero (n)' n in 256 384 512 486 Test("test-invalid-rsa-key-exchange-messages.py"), 487 488 # test expects illegal_parameter, we send unrecognized_name (which seems 489 # correct according to rfc 6066?) 490 Test("test-invalid-server-name-extension-resumption.py"), 491 # let through some server names without sending an alert 492 # again illegal_parameter vs unrecognized_name 493 Test("test-invalid-server-name-extension.py"), 494 495 # 14 pass 496 # 7 fail 497 # 'n extensions', n in 4095, 4096, 4097, 8191, 8192, 8193, 16383, 498 Test("test-large-number-of-extensions.py"), 499 500 # 4 failures: 501 # 'insecure (legacy) renegotiation with GET after 2nd handshake' 502 # 'insecure (legacy) renegotiation with incomplete GET' 503 # 'secure renegotiation with GET after 2nd handshake' 504 # 'secure renegotiation with incomplete GET' 505 Test("test-legacy-renegotiation.py"), 506 507 # 1 failure (timeout): we don't send the unexpected_message alert 508 # 'duplicate change cipher spec after Finished' 509 Test("test-message-duplication.py"), 510 511 # server should send status_request 512 Test("test-ocsp-stapling.py"), 513 514 # unexpected closure 515 Test("test-openssl-3712.py"), 516 517 # failed: 3 (expect an alert, we send AD) 518 # 'try insecure (legacy) renegotiation with incomplete GET' 519 # 'try secure renegotiation with GET after 2nd CH' 520 # 'try secure renegotiation with incomplete GET' 521 Test("test-renegotiation-disabled.py"), 522 523 # 'resumption of safe session with NULL cipher' 524 # 'resumption with cipher from old CH but not selected by server' 525 Test("test-resumption-with-wrong-ciphers.py"), 526 527 # 5 failures: 528 # 'empty sigalgs' 529 # 'only undefined sigalgs' 530 # 'rsa_pss_pss_sha256 only' 531 # 'rsa_pss_pss_sha384 only' 532 # 'rsa_pss_pss_sha512 only' 533 Test("test-sig-algs.py"), 534 535 # 13 failures: 536 # 'duplicated n non-rsa schemes' for n in 202 2342 8119 23741 32744 537 # 'empty list of signature methods' 538 # 'tolerance n RSA or ECDSA methods' for n in 215 2355 8132 23754 539 # 'tolerance 32758 methods with sig_alg_cert' 540 # 'tolerance max 32744 number of methods with sig_alg_cert' 541 # 'tolerance max (32760) number of methods' 542 Test("test-signature-algorithms.py"), 543 544 # times out 545 Test("test-ssl-death-alert.py"), 546 547 # 17 pass, 13 fail. padding and truncation 548 Test("test-truncating-of-client-hello.py"), 549 550 # x448 tests need disabling plus x25519 corner cases need sorting out 551 Test("test-x25519.py"), 552]) 553 554tls12_unsupported_tests = TestGroup("TLSv1.2 for unsupported features", [ 555 # protocol_version 556 Test("test-SSLv3-padding.py"), 557 # we don't do RSA key exchanges 558 Test("test-bleichenbacher-timing.py"), 559 # no encrypt-then-mac 560 Test("test-encrypt-then-mac-renegotiation.py"), 561 Test("test-encrypt-then-mac.py"), 562 # no EME support 563 Test("test-extended-master-secret-extension-with-client-cert.py"), 564 Test("test-extended-master-secret-extension.py"), 565 # no ffdhe 566 Test("test-ffdhe-expected-params.py"), 567 Test("test-ffdhe-negotiation.py"), 568 # record_size_limit/max_fragment_length extension (RFC 8449) 569 Test("test-record-size-limit.py"), 570 # expects the server to send the heartbeat extension 571 Test("test-heartbeat.py"), 572 # needs an echo server 573 Test("test-lengths.py"), 574]) 575 576# These tests take a ton of time to fail against an 1.3 server, 577# so don't run them against 1.3 pending further investigation. 578legacy_tests = TestGroup("Legacy protocol tests", [ 579 Test("test-sslv2-force-cipher-3des.py"), 580 Test("test-sslv2-force-cipher-non3des.py"), 581 Test("test-sslv2-force-cipher.py"), 582 Test("test-sslv2-force-export-cipher.py"), 583 Test("test-sslv2hello-protocol.py"), 584]) 585 586all_groups = [ 587 tls13_tests, 588 tls13_slow_tests, 589 tls13_extra_cert_tests, 590 tls13_failing_tests, 591 tls13_slow_failing_tests, 592 tls13_unsupported_tests, 593 tls12_tests, 594 tls12_slow_tests, 595 tls12_failing_tests, 596 tls12_unsupported_tests, 597 legacy_tests, 598] 599 600failing_groups = [ 601 tls13_failing_tests, 602 tls13_slow_failing_tests, 603 tls12_failing_tests, 604] 605 606class TestRunner: 607 """ Runs the given tests troups against a server and displays stats. """ 608 609 def __init__( 610 self, timing=False, verbose=False, host="localhost", port=4433, 611 use_tls1_3=True, dry_run=False, tests=[], scriptdir=tlsfuzzer_scriptdir, 612 ): 613 self.tests = [] 614 615 self.dryrun = dry_run 616 self.use_tls1_3 = use_tls1_3 617 self.host = host 618 self.port = str(port) 619 self.scriptdir = scriptdir 620 621 self.stats = [] 622 self.failed = [] 623 self.missing = [] 624 625 self.timing = timing 626 self.verbose = verbose 627 628 def add(self, title="tests", tests=[]): 629 # tests.sort(key=lambda test: test.name) 630 self.tests.append(TestGroup(title, tests)) 631 632 def add_group(self, group): 633 self.tests.append(group) 634 635 def run_script(self, test): 636 script = test.name 637 args = ["-h"] + [self.host] + ["-p"] + [self.port] + test.args(self.use_tls1_3) 638 639 if self.dryrun: 640 if not self.verbose: 641 args = [] 642 print(script , end=' ' if args else '') 643 print(' '.join([f"\"{arg}\"" for arg in args])) 644 return 645 646 if self.verbose: 647 print(script) 648 else: 649 print(f"{script[:68]:<72}", end=" ", flush=True) 650 start = timer() 651 scriptpath = os.path.join(self.scriptdir, script) 652 if not os.path.exists(scriptpath): 653 self.missing.append(script) 654 print("MISSING") 655 return 656 test = subprocess.run( 657 ["python3", scriptpath] + args, 658 capture_output=not self.verbose, 659 text=True, 660 ) 661 end = timer() 662 self.stats.append((script, end - start)) 663 if test.returncode == 0: 664 print("OK") 665 return 666 print("FAILED") 667 self.failed.append(script) 668 669 if self.verbose: 670 return 671 672 print('\n'.join(test.stdout.split("Test end\n", 1)[1:]), end="") 673 674 def run(self): 675 for group in self: 676 print(f"Running {group.title} ...") 677 for test in group: 678 self.run_script(test) 679 return not self.failed 680 681 def __iter__(self): 682 return iter(self.tests) 683 684 def __del__(self): 685 if self.timing and self.stats: 686 total = 0.0 687 for (script, time) in self.stats: 688 print(f"{round(time, 2):6.2f} {script}") 689 total += time 690 print(f"{round(total, 2):6.2f} total") 691 692 if self.failed: 693 print("Failed tests:") 694 print('\n'.join(self.failed)) 695 696 if self.missing: 697 print("Missing tests (outdated package?):") 698 print('\n'.join(self.missing)) 699 700class TlsServer: 701 """ Spawns an s_server listening on localhost:port if necessary. """ 702 703 def __init__(self, host="localhost", port=4433): 704 self.spawn = True 705 # Check whether a server is already listening on localhost:port 706 self.spawn = subprocess.run( 707 ["nc", "-c", "-z", "-T", "noverify", host, str(port)], 708 stderr=subprocess.DEVNULL, 709 ).returncode != 0 710 711 if self.spawn: 712 self.server = subprocess.Popen( 713 [ 714 "openssl", 715 "s_server", 716 "-accept", 717 str(port), 718 "-groups", 719 "X25519:P-256:P-521:P-384", 720 "-key", 721 "localhost.key", 722 "-cert", 723 "localhost.crt", 724 "-www", 725 ], 726 stdout=subprocess.DEVNULL, 727 stderr=subprocess.PIPE, 728 text=True, 729 ) 730 731 # Check whether the server talks TLSv1.3 732 self.has_tls1_3 = True or subprocess.run( 733 [ 734 "nc", 735 "-c", 736 "-z", 737 "-T", 738 "noverify", 739 "-T", 740 "protocols=TLSv1.3", 741 "localhost", 742 str(port), 743 ], 744 stderr=subprocess.DEVNULL, 745 ).returncode == 0 746 747 self.check() 748 749 def check(self): 750 if self.spawn and self.server.poll() is not None: 751 print(self.server.stderr.read()) 752 raise RuntimeError( 753 f"openssl s_server died. Return code: {self.server.returncode}." 754 ) 755 if self.spawn: 756 self.server.stderr.detach() 757 758 def __del__(self): 759 if self.spawn: 760 self.server.terminate() 761 762# Extract the arguments we pass to script 763def defaultargs(script, has_tls1_3): 764 return next( 765 (test for group in all_groups for test in group if test.name == script), 766 Test() 767 ).args(has_tls1_3) 768 769def list_or_missing(missing=True): 770 tests = [test.name for group in all_groups for test in group] 771 772 if missing: 773 scripts = { 774 f for f in os.listdir(tlsfuzzer_scriptdir) if f != "__pycache__" 775 } 776 missing = scripts - set(tests) 777 if missing: 778 print('\n'.join(sorted(missing))) 779 exit(0) 780 781 tests.sort() 782 print('\n'.join(tests)) 783 exit(0) 784 785def usage(): 786 print("Usage: python3 tlsfuzzer.py [-flmnstv] [-p port] [script [test...]]") 787 print(" --help help") 788 print(" -f run failing tests") 789 print(" -l list tests") 790 print(" -m list new tests after package update") 791 print(" -n do not run tests, but list the ones that would be run") 792 print(" -p port connect to this port - defaults to 4433") 793 print(" -s run slow tests") 794 print(" -t show timing stats at end") 795 print(" -v verbose output") 796 exit(0) 797 798def main(): 799 failing = False 800 list = False 801 missing = False 802 dryrun = False 803 host = "localhost" 804 port = 4433 805 slow = False 806 timing = False 807 verbose = False 808 809 argv = sys.argv[1:] 810 opts, args = getopt.getopt(argv, "fh:lmnp:stv", ["help"]) 811 for opt, arg in opts: 812 if opt == '--help': 813 usage() 814 elif opt == '-f': 815 failing = True 816 elif opt == '-h': 817 host = arg 818 elif opt == '-l': 819 list = True 820 elif opt == '-m': 821 missing = True 822 elif opt == '-n': 823 dryrun = True 824 elif opt == '-p': 825 port = int(arg) 826 elif opt == '-s': 827 slow = True 828 elif opt == '-t': 829 timing = True 830 elif opt == '-v': 831 verbose = True 832 else: 833 raise ValueError(f"Unknown option: {opt}") 834 835 if not os.path.exists(tlsfuzzer_scriptdir): 836 print("package py3-tlsfuzzer is required for this regress") 837 exit(1) 838 839 if list and failing: 840 failing = [test.name for group in failing_groups for test in group] 841 failing.sort() 842 print('\n'.join(failing)) 843 exit(0) 844 845 if list or missing: 846 list_or_missing(missing) 847 848 tls_server = TlsServer(host, port) 849 850 tests = TestRunner(timing, verbose, host, port, tls_server.has_tls1_3, dryrun) 851 852 if args: 853 (dir, script) = os.path.split(args[0]) 854 if dir and not dir == '.': 855 tests.scriptdir = dir 856 857 testargs = defaultargs(script, tls_server.has_tls1_3) 858 859 tests.verbose = True 860 tests.add("test from command line", [Test(script, testargs + args[1:])]) 861 862 exit(not tests.run()) 863 864 if failing: 865 if tls_server.has_tls1_3: 866 tests.add_group(tls13_failing_tests) 867 if slow: 868 tests.add_group(tls13_slow_failing_tests) 869 tests.add_group(tls12_failing_tests) 870 871 if tls_server.has_tls1_3: 872 tests.add_group(tls13_tests) 873 if slow: 874 tests.add_group(tls13_slow_tests) 875 else: 876 tests.add_group(legacy_tests) 877 878 tests.add_group(tls12_tests) 879 if slow: 880 tests.add_group(tls12_slow_tests) 881 882 success = tests.run() 883 del tests 884 885 if not success: 886 print("FAILED") 887 exit(1) 888 889if __name__ == "__main__": 890 main() 891