From e190ef190525999d1f599cf8c3aef5cb7f3a8bc4 Mon Sep 17 00:00:00 2001 From: Paul Kehrer Date: Mon, 10 Jul 2023 19:46:49 -0500 Subject: [PATCH] Backport ssh cert fix (#9211) * Fix encoding of SSH certs with critical options (#9208) * Add tests for issue #9207 * Fix encoding of SSH certs with critical options * Test unexpected additional values for crit opts/exts * temporarily allow invalid ssh cert encoding --------- Co-authored-by: jeanluc <2163936+lkubb@users.noreply.github.com> --- CHANGELOG.rst | 11 ++ docs/development/test-vectors.rst | 4 + .../hazmat/primitives/serialization/ssh.py | 28 ++++- tests/hazmat/primitives/test_ssh.py | 111 +++++++++++++----- ...p256-ed25519-non-singular-crit-opt-val.pub | 1 + .../p256-ed25519-non-singular-ext-val.pub | 1 + 6 files changed, 122 insertions(+), 34 deletions(-) create mode 100644 vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-crit-opt-val.pub create mode 100644 vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-ext-val.pub diff --git a/CHANGELOG.rst b/CHANGELOG.rst index eca152e92217..0f0450b19b72 100644 --- a/CHANGELOG.rst +++ b/CHANGELOG.rst @@ -1,6 +1,17 @@ Changelog ========= +.. _v41-0-2: + +41.0.2 - 2023-07-10 +~~~~~~~~~~~~~~~~~~~ + +* Fixed bugs in creating and parsing SSH certificates where critical options + with values were handled incorrectly. Certificates are now created correctly + and parsing accepts correct values as well as the previously generated + invalid forms with a warning. In the next release, support for parsing these + invalid forms will be removed. + .. _v41-0-1: 41.0.1 - 2023-06-01 diff --git a/docs/development/test-vectors.rst b/docs/development/test-vectors.rst index 3e54c40ae43d..cfab7edcca69 100644 --- a/docs/development/test-vectors.rst +++ b/docs/development/test-vectors.rst @@ -866,6 +866,10 @@ Custom OpenSSH Certificate Test Vectors critical option. * ``p256-p256-non-lexical-crit-opts.pub`` - A certificate with critical options in non-lexical order. +* ``p256-ed25519-non-singular-crit-opt-val.pub`` - A certificate with + a critical option that contains more than one value. +* ``p256-ed25519-non-singular-ext-val.pub`` - A certificate with + an extension that contains more than one value. * ``dsa-p256.pub`` - A certificate with a DSA public key signed by a P256 CA. * ``p256-dsa.pub`` - A certificate with a P256 public key signed by a DSA diff --git a/src/cryptography/hazmat/primitives/serialization/ssh.py b/src/cryptography/hazmat/primitives/serialization/ssh.py index 7725c83543e8..35e53c102875 100644 --- a/src/cryptography/hazmat/primitives/serialization/ssh.py +++ b/src/cryptography/hazmat/primitives/serialization/ssh.py @@ -1063,6 +1063,20 @@ def _parse_exts_opts(exts_opts: memoryview) -> typing.Dict[bytes, bytes]: if last_name is not None and bname < last_name: raise ValueError("Fields not lexically sorted") value, exts_opts = _get_sshstr(exts_opts) + if len(value) > 0: + try: + value, extra = _get_sshstr(value) + except ValueError: + warnings.warn( + "This certificate has an incorrect encoding for critical " + "options or extensions. This will be an exception in " + "cryptography 42", + utils.DeprecatedIn41, + stacklevel=4, + ) + else: + if len(extra) > 0: + raise ValueError("Unexpected extra data after value") result[bname] = bytes(value) last_name = bname return result @@ -1450,12 +1464,22 @@ def sign(self, private_key: SSHCertPrivateKeyTypes) -> SSHCertificate: fcrit = _FragList() for name, value in self._critical_options: fcrit.put_sshstr(name) - fcrit.put_sshstr(value) + if len(value) > 0: + foptval = _FragList() + foptval.put_sshstr(value) + fcrit.put_sshstr(foptval.tobytes()) + else: + fcrit.put_sshstr(value) f.put_sshstr(fcrit.tobytes()) fext = _FragList() for name, value in self._extensions: fext.put_sshstr(name) - fext.put_sshstr(value) + if len(value) > 0: + fextval = _FragList() + fextval.put_sshstr(value) + fext.put_sshstr(fextval.tobytes()) + else: + fext.put_sshstr(value) f.put_sshstr(fext.tobytes()) f.put_sshstr(b"") # RESERVED FIELD # encode CA public key diff --git a/tests/hazmat/primitives/test_ssh.py b/tests/hazmat/primitives/test_ssh.py index e5c58062d075..fcd0928a87de 100644 --- a/tests/hazmat/primitives/test_ssh.py +++ b/tests/hazmat/primitives/test_ssh.py @@ -1115,26 +1115,28 @@ def test_loads_ssh_cert(self, backend): # secp256r1 public key, ed25519 signing key cert = load_ssh_public_identity( b"ecdsa-sha2-nistp256-cert-v01@openssh.com AAAAKGVjZHNhLXNoYTItbm" - b"lzdHAyNTYtY2VydC12MDFAb3BlbnNzaC5jb20AAAAgtdU+dl9vD4xPi8afxERYo" - b"s0c0d9/3m7XGY6fGeSkqn0AAAAIbmlzdHAyNTYAAABBBAsuVFNNj/mMyFm2xB99" - b"G4xiaUJE1lZNjcp+S2tXYW5KorcHpusSlSqOkUPZ2l0644dgiNPDKR/R+BtYENC" - b"8aq8AAAAAAAAAAAAAAAEAAAAUdGVzdEBjcnlwdG9ncmFwaHkuaW8AAAAaAAAACm" - b"NyeXB0b3VzZXIAAAAIdGVzdHVzZXIAAAAAY7KyZAAAAAB2frXAAAAAAAAAAIIAA" - b"AAVcGVybWl0LVgxMS1mb3J3YXJkaW5nAAAAAAAAABdwZXJtaXQtYWdlbnQtZm9y" - b"d2FyZGluZwAAAAAAAAAWcGVybWl0LXBvcnQtZm9yd2FyZGluZwAAAAAAAAAKcGV" - b"ybWl0LXB0eQAAAAAAAAAOcGVybWl0LXVzZXItcmMAAAAAAAAAAAAAADMAAAALc3" - b"NoLWVkMjU1MTkAAAAg3P0eyGf2crKGwSlnChbLzTVOFKwQELE1Ve+EZ6rXF18AA" - b"ABTAAAAC3NzaC1lZDI1NTE5AAAAQKoij8BsPj/XLb45+wHmRWKNqXeZYXyDIj8J" - b"IE6dIymjEqq0TP6ntu5t59hTmWlDO85GnMXAVGBjFbeikBMfAQc= reaperhulk" - b"@despoina.local" + b"lzdHAyNTYtY2VydC12MDFAb3BlbnNzaC5jb20AAAAgLfsFv9Gbc6LZSiJFWdYQl" + b"IMNI50GExXW0fBpgGVf+Y4AAAAIbmlzdHAyNTYAAABBBIzVyRgVLR4F38bIOLBN" + b"8CNm8Nf+eBHCVkKDKb9WDyLLD61CEmzjK/ORwFuSE4N60eIGbFidBf0D0xh7G6o" + b"TNxsAAAAAAAAAAAAAAAEAAAAUdGVzdEBjcnlwdG9ncmFwaHkuaW8AAAAaAAAACm" + b"NyeXB0b3VzZXIAAAAIdGVzdHVzZXIAAAAAY7KyZAAAAAB2frXAAAAAWAAAAA1mb" + b"3JjZS1jb21tYW5kAAAALAAAAChlY2hvIGFhYWFhYWFhYWFhYWFhYWFhYWFhYWFh" + b"YWFhYWFhYWFhYWFhAAAAD3ZlcmlmeS1yZXF1aXJlZAAAAAAAAACCAAAAFXBlcm1" + b"pdC1YMTEtZm9yd2FyZGluZwAAAAAAAAAXcGVybWl0LWFnZW50LWZvcndhcmRpbm" + b"cAAAAAAAAAFnBlcm1pdC1wb3J0LWZvcndhcmRpbmcAAAAAAAAACnBlcm1pdC1wd" + b"HkAAAAAAAAADnBlcm1pdC11c2VyLXJjAAAAAAAAAAAAAAAzAAAAC3NzaC1lZDI1" + b"NTE5AAAAICH6csEOmGbOfT2B/S/FJg3uyPsaPSZUZk2SVYlfs0KLAAAAUwAAAAt" + b"zc2gtZWQyNTUxOQAAAEDz2u7X5/TFbN7Ms7DP4yArhz1oWWYKkdAk7FGFkHfjtY" + b"/YfNQ8Oky3dCZRi7PnSzScEEjos7723dhF8/y99WwH reaperhulk@despoina." + b"local" ) assert isinstance(cert, SSHCertificate) cert.verify_cert_signature() signature_key = cert.signature_key() assert isinstance(signature_key, ed25519.Ed25519PublicKey) assert cert.nonce == ( - b"\xb5\xd5>v_o\x0f\x8cO\x8b\xc6\x9f\xc4DX\xa2\xcd\x1c\xd1\xdf" - b"\x7f\xden\xd7\x19\x8e\x9f\x19\xe4\xa4\xaa}" + b'-\xfb\x05\xbf\xd1\x9bs\xa2\xd9J"EY\xd6\x10\x94\x83\r#\x9d' + b"\x06\x13\x15\xd6\xd1\xf0i\x80e_\xf9\x8e" ) public_key = cert.public_key() assert isinstance(public_key, ec.EllipticCurvePublicKey) @@ -1145,7 +1147,10 @@ def test_loads_ssh_cert(self, backend): assert cert.valid_principals == [b"cryptouser", b"testuser"] assert cert.valid_before == 1988015552 assert cert.valid_after == 1672655460 - assert cert.critical_options == {} + assert cert.critical_options == { + b"force-command": b"echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", + b"verify-required": b"", + } assert cert.extensions == { b"permit-X11-forwarding": b"", b"permit-agent-forwarding": b"", @@ -1154,6 +1159,31 @@ def test_loads_ssh_cert(self, backend): b"permit-user-rc": b"", } + def test_loads_deprecated_invalid_encoding_cert(self, backend): + with pytest.warns(utils.DeprecatedIn41): + cert = load_ssh_public_identity( + b"ecdsa-sha2-nistp256-cert-v01@openssh.com AAAAKGVjZHNhLXNoYT" + b"ItbmlzdHAyNTYtY2VydC12MDFAb3BlbnNzaC5jb20AAAAgXE7sJ+xDVVNCO" + b"cEvpZS+SXIbc0nJdny/KqVbnwHslMIAAAAIbmlzdHAyNTYAAABBBI/qcLq8" + b"iiErpAhOWRqdMkpFSCNv7TVUcXCIfAl01JXbe2MvS4V7lFtiyrBjLSV7Iyw" + b"3TrulrWLibjPzZvLwmQcAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAA//" + b"////////8AAABUAAAADWZvcmNlLWNvbW1hbmQAAAAoZWNobyBhYWFhYWFhY" + b"WFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYQAAAA92ZXJpZnktcmVxdWly" + b"ZWQAAAAAAAAAEgAAAApwZXJtaXQtcHR5AAAAAAAAAAAAAABoAAAAE2VjZHN" + b"hLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBI/qcLq8iiErpAhOWR" + b"qdMkpFSCNv7TVUcXCIfAl01JXbe2MvS4V7lFtiyrBjLSV7Iyw3TrulrWLib" + b"jPzZvLwmQcAAABlAAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAABKAAAAIQCi" + b"eCsIhGKrZdkE1+zY5EBucrLzxFpwnm/onIT/6rapvQAAACEAuVQ1yQjlPKr" + b"kfsGfjeG+2umZrOS5Ycx85BQhYf0RgsA=" + ) + assert isinstance(cert, SSHCertificate) + cert.verify_cert_signature() + assert cert.extensions == {b"permit-pty": b""} + assert cert.critical_options == { + b"force-command": b"echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa", + b"verify-required": b"", + } + @pytest.mark.parametrize( "filename", [ @@ -1267,6 +1297,8 @@ def test_invalid_cert_type(self): "p256-p256-non-lexical-extensions.pub", "p256-p256-duplicate-crit-opts.pub", "p256-p256-non-lexical-crit-opts.pub", + "p256-ed25519-non-singular-crit-opt-val.pub", + "p256-ed25519-non-singular-ext-val.pub", ], ) def test_invalid_encodings(self, filename): @@ -1693,6 +1725,11 @@ def test_sign_and_byte_compare_rsa(self, monkeypatch): .valid_after(1672531200) .valid_before(1672617600) .type(SSHCertificateType.USER) + .add_extension(b"permit-pty", b"") + .add_critical_option( + b"force-command", b"echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + ) + .add_critical_option(b"verify-required", b"") ) cert = builder.sign(private_key) sig_key = cert.signature_key() @@ -1707,19 +1744,21 @@ def test_sign_and_byte_compare_rsa(self, monkeypatch): b"4kyHpbLEIVloBjzetoqXK6u8Hjz/APuagONypNDCySDR6M7jM85HDcLoFFrbBb8" b"pruHSTxQejMeEmJxYf8b7rNl58/IWPB1ymbNlvHL/4oSOlnrtHkjcxRWzpQ7U3g" b"T9BThGyhCiI7EMyEHMgP3r7kTzEUwT6IavWDAAAAAAAAAAAAAAABAAAAAAAAAAA" - b"AAAAAY7DNAAAAAABjsh6AAAAAAAAAAAAAAAAAAAABFwAAAAdzc2gtcnNhAAAAAw" - b"EAAQAAAQEAwXr8fndHTKpaqDA2FYo/+/e1IWhRuiIw5dar/MHGz+9Z6SPqEzC8W" - b"TtzgCq2CKbkozBlI6MRa6WqOWYUUXThO2xJ6beAYuRJ1y77EP1J6R+gi5bQUeeC" - b"6fWrxbWm95hIJ6245z2gDyKy79zbduq0btrZjtZWYnQ/3GwOM2pdDNuqfcKeU2N" - b"eJMh6WyxCFZaAY83raKlyurvB48/wD7moDjcqTQwskg0ejO4zPORw3C6BRa2wW/" - b"Ka7h0k8UHozHhJicWH/G+6zZefPyFjwdcpmzZbxy/+KEjpZ67R5I3MUVs6UO1N4" - b"E/QU4RsoQoiOxDMhBzID96+5E8xFME+iGr1gwAAARQAAAAMcnNhLXNoYTItNTEy" - b"AAABAKCRnfhn6MZs3jRgIDICUpUyWrDCbpStEbdzhmoxF8w2m8klR7owRH/rxOf" - b"nWhKMGnXnoERS+az3Zh9ckiQPujkuEToORKpzu6CEWlzHSzyK1o2X548KkW76HJ" - b"gqzwMas94HY7UOJUgKSFUI0S3jAgqXAKSa1DxvJBu5/n57aUqPq+BmAtoI8uNBo" - b"x4F1pNEop38+oD7rUt8bZ8K0VcrubJZz806K8UNiK0mOahaEIkvZXBfzPGvSNRj" - b"0OjDl1dLUZaP8C1o5lVRomEm7pLcgE9i+ZDq5iz+mvQrSBStlpQ5hPGuUOrZ/oY" - b"ZLZ1G30R5tWj212MHoNZjxFxM8+f2OT4=" + b"AAAAAY7DNAAAAAABjsh6AAAAAWAAAAA1mb3JjZS1jb21tYW5kAAAALAAAAChlY2" + b"hvIGFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhAAAAD3Zlcmlme" + b"S1yZXF1aXJlZAAAAAAAAAASAAAACnBlcm1pdC1wdHkAAAAAAAAAAAAAARcAAAAH" + b"c3NoLXJzYQAAAAMBAAEAAAEBAMF6/H53R0yqWqgwNhWKP/v3tSFoUboiMOXWq/z" + b"Bxs/vWekj6hMwvFk7c4Aqtgim5KMwZSOjEWulqjlmFFF04TtsSem3gGLkSdcu+x" + b"D9SekfoIuW0FHngun1q8W1pveYSCetuOc9oA8isu/c23bqtG7a2Y7WVmJ0P9xsD" + b"jNqXQzbqn3CnlNjXiTIelssQhWWgGPN62ipcrq7wePP8A+5qA43Kk0MLJINHozu" + b"MzzkcNwugUWtsFvymu4dJPFB6Mx4SYnFh/xvus2Xnz8hY8HXKZs2W8cv/ihI6We" + b"u0eSNzFFbOlDtTeBP0FOEbKEKIjsQzIQcyA/evuRPMRTBPohq9YMAAAEUAAAADH" + b"JzYS1zaGEyLTUxMgAAAQCYbbNzhflDqZAxyBpdLIX0nLAdnTeFNBudMqgo3KGND" + b"WlU9N17hqBEmcvIOrtNi+JKuKZW89zZrbORHvdjv6NjGSKzJD/XA25YrX1KgMEO" + b"wt5pzMZX+100drwrjQo+vZqeIN3FJNmT3wssge73v+JsxQrdIAz7YM2OZrFr5HM" + b"qZEZ5tMvAf/s5YEMDttEU4zMtmjubQyDM5KyYnZdoDT4sKi2rB8gfaigc4IdI/K" + b"8oXL/3Y7rHuOtejl3lUK4v6DxeRl4aqGYWmhUJc++Rh0cbDgC2S6Cq7gAfG2tND" + b"zbwL217Q93R08bJn1hDWuiTiaHGauSy2gPUI+cnkvlEocHM" ) @pytest.mark.supported( @@ -1745,6 +1784,11 @@ def test_sign_and_byte_compare_ed25519(self, monkeypatch, backend): .valid_after(1672531200) .valid_before(1672617600) .type(SSHCertificateType.USER) + .add_extension(b"permit-pty", b"") + .add_critical_option( + b"force-command", b"echo aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" + ) + .add_critical_option(b"verify-required", b"") ) cert = builder.sign(private_key) sig_key = cert.signature_key() @@ -1754,8 +1798,11 @@ def test_sign_and_byte_compare_ed25519(self, monkeypatch, backend): b"ssh-ed25519-cert-v01@openssh.com AAAAIHNzaC1lZDI1NTE5LWNlcnQtdj" b"AxQG9wZW5zc2guY29tAAAAIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA" b"AAAAAAAINdamAGCsQq31Uv+08lkBzoO4XLz2qYjJa8CGmj3B1EaAAAAAAAAAAAA" - b"AAABAAAAAAAAAAAAAAAAY7DNAAAAAABjsh6AAAAAAAAAAAAAAAAAAAAAMwAAAAt" - b"zc2gtZWQyNTUxOQAAACDXWpgBgrEKt9VL/tPJZAc6DuFy89qmIyWvAhpo9wdRGg" - b"AAAFMAAAALc3NoLWVkMjU1MTkAAABAAlF6Lxabxs+8fkOr7KjKYei9konIG13cQ" - b"gJ2tWf3yFcg3OuV5s/AkRmKdwHlQfTUrhRdOmDnGxeLEB0mvkVFCw==" + b"AAABAAAAAAAAAAAAAAAAY7DNAAAAAABjsh6AAAAAWAAAAA1mb3JjZS1jb21tYW5" + b"kAAAALAAAAChlY2hvIGFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYW" + b"FhAAAAD3ZlcmlmeS1yZXF1aXJlZAAAAAAAAAASAAAACnBlcm1pdC1wdHkAAAAAA" + b"AAAAAAAADMAAAALc3NoLWVkMjU1MTkAAAAg11qYAYKxCrfVS/7TyWQHOg7hcvPa" + b"piMlrwIaaPcHURoAAABTAAAAC3NzaC1lZDI1NTE5AAAAQL2aUjeD60C2FrbgHcN" + b"t8yRa8IRbxvOyA9TZYDGG1dRE3DiR0fuudU20v6vqfTd1gx0S5QyEdECXLl9ZI3" + b"AwZgc=" ) diff --git a/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-crit-opt-val.pub b/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-crit-opt-val.pub new file mode 100644 index 000000000000..5510bd5f0f35 --- /dev/null +++ b/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-crit-opt-val.pub @@ -0,0 +1 @@ +ecdsa-sha2-nistp256-cert-v01@openssh.com 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 \ No newline at end of file diff --git a/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-ext-val.pub b/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-ext-val.pub new file mode 100644 index 000000000000..c44b49fceccd --- /dev/null +++ b/vectors/cryptography_vectors/asymmetric/OpenSSH/certs/p256-ed25519-non-singular-ext-val.pub @@ -0,0 +1 @@ +ecdsa-sha2-nistp256-cert-v01@openssh.com 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 \ No newline at end of file