From 0047ac4cdc4b717777140b761a2337e86cdceef9 Mon Sep 17 00:00:00 2001 From: Thomas Kriechbaumer Date: Tue, 1 Sep 2015 23:27:36 +0200 Subject: pass-through ciphers from client to server --- libmproxy/protocol/tls.py | 204 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 202 insertions(+), 2 deletions(-) diff --git a/libmproxy/protocol/tls.py b/libmproxy/protocol/tls.py index a8dc8bb2..2b37c5f4 100644 --- a/libmproxy/protocol/tls.py +++ b/libmproxy/protocol/tls.py @@ -6,11 +6,201 @@ from construct import ConstructError from netlib.tcp import NetLibError, NetLibInvalidCertificateError from netlib.http.http1 import HTTP1Protocol -from ..contrib.tls._constructs import ClientHello +from ..contrib.tls._constructs import ClientHello, CipherSuites from ..exceptions import ProtocolException from .base import Layer +# taken from https://testssl.sh/openssl-rfc.mappping.html +CIPHER_ID_NAME_MAP = { + 0x00: 'NULL-MD5', + 0x01: 'NULL-MD5', + 0x02: 'NULL-SHA', + 0x03: 'EXP-RC4-MD5', + 0x04: 'RC4-MD5', + 0x05: 'RC4-SHA', + 0x06: 'EXP-RC2-CBC-MD5', + 0x07: 'IDEA-CBC-SHA', + 0x08: 'EXP-DES-CBC-SHA', + 0x09: 'DES-CBC-SHA', + 0x0a: 'DES-CBC3-SHA', + 0x0b: 'EXP-DH-DSS-DES-CBC-SHA', + 0x0c: 'DH-DSS-DES-CBC-SHA', + 0x0d: 'DH-DSS-DES-CBC3-SHA', + 0x0e: 'EXP-DH-RSA-DES-CBC-SHA', + 0x0f: 'DH-RSA-DES-CBC-SHA', + 0x10: 'DH-RSA-DES-CBC3-SHA', + 0x11: 'EXP-EDH-DSS-DES-CBC-SHA', + 0x12: 'EDH-DSS-DES-CBC-SHA', + 0x13: 'EDH-DSS-DES-CBC3-SHA', + 0x14: 'EXP-EDH-RSA-DES-CBC-SHA', + 0x15: 'EDH-RSA-DES-CBC-SHA', + 0x16: 'EDH-RSA-DES-CBC3-SHA', + 0x17: 'EXP-ADH-RC4-MD5', + 0x18: 'ADH-RC4-MD5', + 0x19: 'EXP-ADH-DES-CBC-SHA', + 0x1a: 'ADH-DES-CBC-SHA', + 0x1b: 'ADH-DES-CBC3-SHA', + # 0x1c: , + # 0x1d: , + 0x1e: 'KRB5-DES-CBC-SHA', + 0x1f: 'KRB5-DES-CBC3-SHA', + 0x20: 'KRB5-RC4-SHA', + 0x21: 'KRB5-IDEA-CBC-SHA', + 0x22: 'KRB5-DES-CBC-MD5', + 0x23: 'KRB5-DES-CBC3-MD5', + 0x24: 'KRB5-RC4-MD5', + 0x25: 'KRB5-IDEA-CBC-MD5', + 0x26: 'EXP-KRB5-DES-CBC-SHA', + 0x27: 'EXP-KRB5-RC2-CBC-SHA', + 0x28: 'EXP-KRB5-RC4-SHA', + 0x29: 'EXP-KRB5-DES-CBC-MD5', + 0x2a: 'EXP-KRB5-RC2-CBC-MD5', + 0x2b: 'EXP-KRB5-RC4-MD5', + 0x2f: 'AES128-SHA', + 0x30: 'DH-DSS-AES128-SHA', + 0x31: 'DH-RSA-AES128-SHA', + 0x32: 'DHE-DSS-AES128-SHA', + 0x33: 'DHE-RSA-AES128-SHA', + 0x34: 'ADH-AES128-SHA', + 0x35: 'AES256-SHA', + 0x36: 'DH-DSS-AES256-SHA', + 0x37: 'DH-RSA-AES256-SHA', + 0x38: 'DHE-DSS-AES256-SHA', + 0x39: 'DHE-RSA-AES256-SHA', + 0x3a: 'ADH-AES256-SHA', + 0x3b: 'NULL-SHA256', + 0x3c: 'AES128-SHA256', + 0x3d: 'AES256-SHA256', + 0x3e: 'DH-DSS-AES128-SHA256', + 0x3f: 'DH-RSA-AES128-SHA256', + 0x40: 'DHE-DSS-AES128-SHA256', + 0x41: 'CAMELLIA128-SHA', + 0x42: 'DH-DSS-CAMELLIA128-SHA', + 0x43: 'DH-RSA-CAMELLIA128-SHA', + 0x44: 'DHE-DSS-CAMELLIA128-SHA', + 0x45: 'DHE-RSA-CAMELLIA128-SHA', + 0x46: 'ADH-CAMELLIA128-SHA', + 0x62: 'EXP1024-DES-CBC-SHA', + 0x63: 'EXP1024-DHE-DSS-DES-CBC-SHA', + 0x64: 'EXP1024-RC4-SHA', + 0x65: 'EXP1024-DHE-DSS-RC4-SHA', + 0x66: 'DHE-DSS-RC4-SHA', + 0x67: 'DHE-RSA-AES128-SHA256', + 0x68: 'DH-DSS-AES256-SHA256', + 0x69: 'DH-RSA-AES256-SHA256', + 0x6a: 'DHE-DSS-AES256-SHA256', + 0x6b: 'DHE-RSA-AES256-SHA256', + 0x6c: 'ADH-AES128-SHA256', + 0x6d: 'ADH-AES256-SHA256', + 0x80: 'GOST94-GOST89-GOST89', + 0x81: 'GOST2001-GOST89-GOST89', + 0x82: 'GOST94-NULL-GOST94', + 0x83: 'GOST2001-GOST89-GOST89', + 0x84: 'CAMELLIA256-SHA', + 0x85: 'DH-DSS-CAMELLIA256-SHA', + 0x86: 'DH-RSA-CAMELLIA256-SHA', + 0x87: 'DHE-DSS-CAMELLIA256-SHA', + 0x88: 'DHE-RSA-CAMELLIA256-SHA', + 0x89: 'ADH-CAMELLIA256-SHA', + 0x8a: 'PSK-RC4-SHA', + 0x8b: 'PSK-3DES-EDE-CBC-SHA', + 0x8c: 'PSK-AES128-CBC-SHA', + 0x8d: 'PSK-AES256-CBC-SHA', + # 0x8e: , + # 0x8f: , + # 0x90: , + # 0x91: , + # 0x92: , + # 0x93: , + # 0x94: , + # 0x95: , + 0x96: 'SEED-SHA', + 0x97: 'DH-DSS-SEED-SHA', + 0x98: 'DH-RSA-SEED-SHA', + 0x99: 'DHE-DSS-SEED-SHA', + 0x9a: 'DHE-RSA-SEED-SHA', + 0x9b: 'ADH-SEED-SHA', + 0x9c: 'AES128-GCM-SHA256', + 0x9d: 'AES256-GCM-SHA384', + 0x9e: 'DHE-RSA-AES128-GCM-SHA256', + 0x9f: 'DHE-RSA-AES256-GCM-SHA384', + 0xa0: 'DH-RSA-AES128-GCM-SHA256', + 0xa1: 'DH-RSA-AES256-GCM-SHA384', + 0xa2: 'DHE-DSS-AES128-GCM-SHA256', + 0xa3: 'DHE-DSS-AES256-GCM-SHA384', + 0xa4: 'DH-DSS-AES128-GCM-SHA256', + 0xa5: 'DH-DSS-AES256-GCM-SHA384', + 0xa6: 'ADH-AES128-GCM-SHA256', + 0xa7: 'ADH-AES256-GCM-SHA384', + 0x5600: 'TLS_FALLBACK_SCSV', + 0xc001: 'ECDH-ECDSA-NULL-SHA', + 0xc002: 'ECDH-ECDSA-RC4-SHA', + 0xc003: 'ECDH-ECDSA-DES-CBC3-SHA', + 0xc004: 'ECDH-ECDSA-AES128-SHA', + 0xc005: 'ECDH-ECDSA-AES256-SHA', + 0xc006: 'ECDHE-ECDSA-NULL-SHA', + 0xc007: 'ECDHE-ECDSA-RC4-SHA', + 0xc008: 'ECDHE-ECDSA-DES-CBC3-SHA', + 0xc009: 'ECDHE-ECDSA-AES128-SHA', + 0xc00a: 'ECDHE-ECDSA-AES256-SHA', + 0xc00b: 'ECDH-RSA-NULL-SHA', + 0xc00c: 'ECDH-RSA-RC4-SHA', + 0xc00d: 'ECDH-RSA-DES-CBC3-SHA', + 0xc00e: 'ECDH-RSA-AES128-SHA', + 0xc00f: 'ECDH-RSA-AES256-SHA', + 0xc010: 'ECDHE-RSA-NULL-SHA', + 0xc011: 'ECDHE-RSA-RC4-SHA', + 0xc012: 'ECDHE-RSA-DES-CBC3-SHA', + 0xc013: 'ECDHE-RSA-AES128-SHA', + 0xc014: 'ECDHE-RSA-AES256-SHA', + 0xc015: 'AECDH-NULL-SHA', + 0xc016: 'AECDH-RC4-SHA', + 0xc017: 'AECDH-DES-CBC3-SHA', + 0xc018: 'AECDH-AES128-SHA', + 0xc019: 'AECDH-AES256-SHA', + 0xc01a: 'SRP-3DES-EDE-CBC-SHA', + 0xc01b: 'SRP-RSA-3DES-EDE-CBC-SHA', + 0xc01c: 'SRP-DSS-3DES-EDE-CBC-SHA', + 0xc01d: 'SRP-AES-128-CBC-SHA', + 0xc01e: 'SRP-RSA-AES-128-CBC-SHA', + 0xc01f: 'SRP-DSS-AES-128-CBC-SHA', + 0xc020: 'SRP-AES-256-CBC-SHA', + 0xc021: 'SRP-RSA-AES-256-CBC-SHA', + 0xc022: 'SRP-DSS-AES-256-CBC-SHA', + 0xc023: 'ECDHE-ECDSA-AES128-SHA256', + 0xc024: 'ECDHE-ECDSA-AES256-SHA384', + 0xc025: 'ECDH-ECDSA-AES128-SHA256', + 0xc026: 'ECDH-ECDSA-AES256-SHA384', + 0xc027: 'ECDHE-RSA-AES128-SHA256', + 0xc028: 'ECDHE-RSA-AES256-SHA384', + 0xc029: 'ECDH-RSA-AES128-SHA256', + 0xc02a: 'ECDH-RSA-AES256-SHA384', + 0xc02b: 'ECDHE-ECDSA-AES128-GCM-SHA256', + 0xc02c: 'ECDHE-ECDSA-AES256-GCM-SHA384', + 0xc02d: 'ECDH-ECDSA-AES128-GCM-SHA256', + 0xc02e: 'ECDH-ECDSA-AES256-GCM-SHA384', + 0xc02f: 'ECDHE-RSA-AES128-GCM-SHA256', + 0xc030: 'ECDHE-RSA-AES256-GCM-SHA384', + 0xc031: 'ECDH-RSA-AES128-GCM-SHA256', + 0xc032: 'ECDH-RSA-AES256-GCM-SHA384', + 0xcc13: 'ECDHE-RSA-CHACHA20-POLY1305', + 0xcc14: 'ECDHE-ECDSA-CHACHA20-POLY1305', + 0xcc15: 'DHE-RSA-CHACHA20-POLY1305', + 0xff00: 'GOST-MD5', + 0xff01: 'GOST-GOST94', + 0xff02: 'GOST-GOST89MAC', + 0xff03: 'GOST-GOST89STREAM', + 0x010080: 'RC4-MD5', + 0x020080: 'EXP-RC4-MD5', + 0x030080: 'RC2-CBC-MD5', + 0x040080: 'EXP-RC2-CBC-MD5', + 0x050080: 'IDEA-CBC-MD5', + 0x060040: 'DES-CBC-MD5', + 0x0700c0: 'DES-CBC3-MD5', + 0x080080: 'RC4-64-MD5', +} + def is_tls_record_magic(d): """ Returns: @@ -127,6 +317,8 @@ class TlsLayer(Layer): self.log("Raw Client Hello:\r\n:%s" % raw_client_hello.encode("hex"), "debug") return + self.client_ciphers = client_hello.cipher_suites.cipher_suites + for extension in client_hello.extensions: if extension.type == 0x00: if len(extension.server_names) != 1 or extension.server_names[0].type != 0: @@ -234,6 +426,14 @@ class TlsLayer(Layer): else: alpn = None + ciphers_server = self.config.ciphers_server + if not ciphers_server: + ciphers_server = [] + for id in self.client_ciphers: + if id in CIPHER_ID_NAME_MAP.keys(): + ciphers_server.append(CIPHER_ID_NAME_MAP[id]) + ciphers_server = ':'.join(ciphers_server) + self.server_conn.establish_ssl( self.config.clientcerts, self.sni_for_server_connection, @@ -242,7 +442,7 @@ class TlsLayer(Layer): verify_options=self.config.openssl_verification_mode_server, ca_path=self.config.openssl_trusted_cadir_server, ca_pemfile=self.config.openssl_trusted_ca_server, - cipher_list=self.config.ciphers_server, + cipher_list=ciphers_server, alpn_protos=alpn, ) tls_cert_err = self.server_conn.ssl_verification_error -- cgit v1.2.3