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700 lines
27 KiB
C
700 lines
27 KiB
C
/* Copyright (C) 2007-2010 Open Information Security Foundation
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*
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* You can copy, redistribute or modify this Program under the terms of
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* the GNU General Public License version 2 as published by the Free
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* Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* version 2 along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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/**
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* \file
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*
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* \author Gurvinder Singh <gurvindersinghdahiya@gmail.com>
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*
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* App-layer detection of SSL2 protocol
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*
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*/
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#include <netinet/in.h>
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#include "suricata-common.h"
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#include "debug.h"
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#include "decode.h"
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#include "threads.h"
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#include "util-print.h"
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#include "util-pool.h"
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#include "stream-tcp-private.h"
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#include "stream-tcp-reassemble.h"
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#include "stream-tcp.h"
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#include "stream.h"
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#include "app-layer-protos.h"
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#include "app-layer-parser.h"
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#include "app-layer-ssl.h"
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#include "util-spm.h"
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#include "util-unittest.h"
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#include "util-debug.h"
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#include "flow-private.h"
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#include "util-byte.h"
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/**
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* \brief Function to parse the SSL field in packet received from the client
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*
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* \param ssl_state Pointer the state in which the value to be stored
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* \param pstate Application layer tarser state for this session
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* \param input Pointer the received input data
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* \param input_len Length in bytes of the received data
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* \param output Pointer to the list of parsed output elements
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*/
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static int SSLParseClientRecord(Flow *f, void *ssl_state, AppLayerParserState *pstate,
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uint8_t *input, uint32_t input_len,
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AppLayerParserResult *output)
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{
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SCEnter();
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/* SSL client message should be larger than 9 bytes as we need to know, to
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what is the SSL version and message type */
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if (input_len < 9) {
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SCLogDebug("Input message length (%"PRIu32") is not equal to minimum "
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"valid ssl record message length, thus returning", input_len);
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SCReturnInt(1);
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}
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SslClient *client = (SslClient *)input;
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SslState *ssl_st = (SslState *)ssl_state;
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switch (client->msg_type) {
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case SSL_CLIENT_HELLO:
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if (client->major_ver != 0x02) {
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SCLogError(SC_ERR_ALPARSER, "SSL version is not equal to 2, "
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"incorrect message!!");
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SCReturnInt(-1);
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}
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ssl_st->flags |= SSL_FLAG_CLIENT_HS;
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ssl_st->client_content_type = client->msg_type;
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ssl_st->client_version = client->minor_ver|client->major_ver;
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if (client->session_id_len == 0) {
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ssl_st->flags |= SSL_FLAG_NO_SESSION_ID;
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}
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SCLogDebug("SSLv2 CLIENT_HELLO message has been received");
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break;
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case SSL_CLIENT_MASTER_KEY:
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if ( ! (ssl_st->flags & SSL_FLAG_CLIENT_HS)) {
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SCLogDebug("client hello is not seen before master key "
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"message!!");
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break;
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}
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ssl_st->flags |= SSL_FLAG_CLIENT_MASTER_KEY;
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ssl_st->client_content_type = client->msg_type;
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SCLogDebug("SSLv2 CLIENT_MASTER_KEY message has been received");
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break;
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case SSL_CLIENT_CERTIFICATE:
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case SSL_CLIENT_FINISHED:
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case SSL_REQUEST_CERTIFICATE:
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if ((ssl_st->flags & SSL_FLAG_CLIENT_HS) &&
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(ssl_st->flags & SSL_FLAG_SERVER_HS))
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{
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if (ssl_st->flags & SSL_FLAG_NO_SESSION_ID) {
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ssl_st->flags |= SSL_FLAG_CLIENT_SSN_ENCRYPTED;
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SCLogDebug("SSLv2 Client side has started the encryption");
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} else if (ssl_st->flags & SSL_FLAG_CLIENT_MASTER_KEY) {
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ssl_st->flags |= SSL_FLAG_CLIENT_SSN_ENCRYPTED;
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SCLogDebug("SSLv2 Client side has started the encryption");
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}
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if ((ssl_st->flags & SSL_FLAG_CLIENT_SSN_ENCRYPTED) &&
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(ssl_st->flags & SSL_FLAG_SERVER_SSN_ENCRYPTED))
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{
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pstate->flags |= APP_LAYER_PARSER_DONE;
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pstate->flags |= APP_LAYER_PARSER_NO_INSPECTION;
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pstate->flags |= APP_LAYER_PARSER_NO_REASSEMBLY;
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SCLogDebug("SSLv2 No reassembly & inspection has been set");
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}
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}
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ssl_st->client_content_type = client->msg_type;
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break;
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case SSL_ERROR:
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SCLogError(SC_ERR_ALPARSER, "Error encountered in establishing the "
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"sslv2 session");
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SCReturnInt(-1);
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default:
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SCLogError(SC_ERR_ALPARSER, "Incorrect message type (%"PRIu8") "
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"while establishing the sslv2 session", client->msg_type);
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break;
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}
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SCReturnInt(1);
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}
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/**
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* \brief Function to parse the SSL field in packet received from the server
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*
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* \param ssl_state Pointer the state in which the value to be stored
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* \param pstate Application layer tarser state for this session
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* \param input Pointer the received input data
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* \param input_len Length in bytes of the received data
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* \param output Pointer to the list of parsed output elements
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*/
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static int SSLParseServerRecord(Flow *f, void *ssl_state, AppLayerParserState *pstate,
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uint8_t *input, uint32_t input_len,
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AppLayerParserResult *output)
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{
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SCEnter();
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SCEnter();
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SslServer *server = (SslServer *)input;
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SslState *ssl_st = (SslState *)ssl_state;
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if (input_len < 7) {
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SCLogDebug("Input message lentgh (%"PRIu32") is not equal to minimum "
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"valid ssl record message length, thus returning!!", input_len);
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SCReturnInt(1);
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}
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switch (server->msg_type) {
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case SSL_SERVER_HELLO:
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if (server->major_ver != 0x02) {
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SCLogError(SC_ERR_ALPARSER, "SSL version is not equal to 2, "
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"incorrect message!!");
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SCReturnInt(-1);
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}
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SCLogDebug("SSLv2 SERVER_HELLO message has been received");
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ssl_st->flags |= SSL_FLAG_SERVER_HS;
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ssl_st->server_content_type = server->msg_type;
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ssl_st->server_version = server->minor_ver|server->major_ver;
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break;
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case SSL_SERVER_VERIFY:
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case SSL_SERVER_FINISHED:
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case SSL_REQUEST_CERTIFICATE:
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if ((ssl_st->flags & SSL_FLAG_SERVER_HS) &&
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(ssl_st->flags & SSL_FLAG_CLIENT_HS))
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{
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ssl_st->flags |= SSL_FLAG_SERVER_SSN_ENCRYPTED;
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SCLogDebug("SSLv2 Server side has started the encryption");
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if ((ssl_st->flags & SSL_FLAG_CLIENT_SSN_ENCRYPTED) &&
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(ssl_st->flags & SSL_FLAG_SERVER_SSN_ENCRYPTED))
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{
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pstate->flags |= APP_LAYER_PARSER_DONE;
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pstate->flags |= APP_LAYER_PARSER_NO_INSPECTION;
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pstate->flags |= APP_LAYER_PARSER_NO_REASSEMBLY;
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SCLogDebug("SSLv2 No reassembly & inspection has been set");
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}
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}
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ssl_st->server_content_type = server->msg_type;
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break;
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case SSL_ERROR:
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SCLogError(SC_ERR_ALPARSER, "Error encountered in establishing the "
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"sslv2 session");
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SCReturnInt(-1);
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default:
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SCLogError(SC_ERR_ALPARSER, "Incorrect message type (%"PRIu8") "
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"while establishing the sslv2 session", server->msg_type);
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break;
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}
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SCReturnInt(1);
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}
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/** \brief Function to allocates the TLS state memory
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*/
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static void *SSLStateAlloc(void)
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{
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SCEnter();
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void *s = SCMalloc(sizeof(SslState));
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if (s == NULL)
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return NULL;
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memset(s, 0, sizeof(SslState));
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SCReturnPtr(s, "SslState");
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}
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/** \brief Function to free the TLS state memory
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*/
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static void SSLStateFree(void *s)
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{
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SCEnter();
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SCFree(s);
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SCReturn;
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}
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/** \brief Function to register the SSL protocol parsers and other functions
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*/
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void RegisterSSLParsers(void)
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{
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AppLayerRegisterProto("ssl", ALPROTO_SSL, STREAM_TOSERVER,
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SSLParseClientRecord);
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AppLayerRegisterProto("ssl", ALPROTO_SSL, STREAM_TOCLIENT,
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SSLParseServerRecord);
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AppLayerRegisterStateFuncs(ALPROTO_SSL, SSLStateAlloc, SSLStateFree);
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}
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#ifdef UNITTESTS
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#include "util-unittest-helper.h"
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#include "stream-tcp-reassemble.h"
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#include "decode-tcp.h"
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extern uint16_t AppLayerParserGetStorageId (void);
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static int SSLParserTest01(void) {
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int result = 0;
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Flow f;
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uint8_t sslbuf[] = {0x80, 0x31, 0x01, 0x00, 0x02, 0x00, 0x00, 0x00, 0x01 };
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uint32_t ssllen = sizeof(sslbuf);
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TcpSession ssn;
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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f.protoctx = (void *)&ssn;
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StreamTcpInitConfig(TRUE);
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StreamL7DataPtrInit(&ssn);
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int r = AppLayerParse(&f, ALPROTO_SSL, STREAM_TOSERVER|STREAM_EOF, sslbuf, ssllen);
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if (r != 0) {
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printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
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goto end;
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}
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SslState *ssl_state = ssn.aldata[AlpGetStateIdx(ALPROTO_SSL)];
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if (ssl_state == NULL) {
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printf("no ssl state: ");
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goto end;
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}
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if (ssl_state->client_content_type != 0x1) {
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printf("expected content_type %" PRIu8 ", got %" PRIu8 ": ", 0x1,
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ssl_state->client_content_type);
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goto end;
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}
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if (ssl_state->client_version != SSL_CLIENT_VERSION) {
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printf("expected version %04" PRIu16 ", got %04" PRIu16 ": ",
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SSL_CLIENT_VERSION, ssl_state->client_version);
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goto end;
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}
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result = 1;
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end:
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StreamL7DataPtrFree(&ssn);
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StreamTcpFreeConfig(TRUE);
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return result;
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}
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static int SSLParserTest02(void) {
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int result = 1;
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Flow f;
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uint8_t sslbuf[] = {0x80, 0x31, 0x04, 0x00, 0x01, 0x00,
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0x02, 0x00, 0x00, 0x00, 0x10, 0x07, 0x00, 0xc0,
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0x05, 0x00, 0x80, 0x03, 0x00, 0x80, 0x01, 0x00,
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0x80, 0x08, 0x00, 0x80, 0x06, 0x00, 0x40, 0x04,
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0x00, 0x80, 0x02, 0x00, 0x80, 0x76, 0x64, 0x75,
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0x2d, 0xa7, 0x98, 0xfe, 0xc9, 0x12, 0x92, 0xc1,
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0x2f, 0x34, 0x84, 0x20, 0xc5};
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uint32_t ssllen = sizeof(sslbuf);
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TcpSession ssn;
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memset(&f, 0, sizeof(f));
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memset(&ssn, 0, sizeof(ssn));
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f.protoctx = (void *)&ssn;
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StreamTcpInitConfig(TRUE);
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StreamL7DataPtrInit(&ssn);
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int r = AppLayerParse(&f, ALPROTO_SSL, STREAM_TOCLIENT|STREAM_EOF, sslbuf, ssllen);
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if (r != 0) {
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printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
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result = 0;
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goto end;
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}
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SslState *ssl_state = ssn.aldata[AlpGetStateIdx(ALPROTO_SSL)];
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if (ssl_state == NULL) {
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printf("no ssl state: ");
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result = 0;
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goto end;
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}
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if (ssl_state->server_content_type != SSL_SERVER_HELLO) {
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printf("expected content_type %" PRIu8 ", got %" PRIu8 ": ",
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SSL_SERVER_HELLO, ssl_state->client_content_type);
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result = 0;
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goto end;
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}
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if (ssl_state->server_version != SSL_SERVER_VERSION) {
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printf("expected version %04" PRIu16 ", got %04" PRIu16 ": ",
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SSL_SERVER_VERSION, ssl_state->client_version);
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result = 0;
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goto end;
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}
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end:
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StreamL7DataPtrFree(&ssn);
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StreamTcpFreeConfig(TRUE);
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return result;
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}
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static int SSLParserTest03(void) {
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int result = 1;
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Flow f;
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uint8_t payload1[] = { 0x80, 0x31, 0x01, 0x00, 0x02, 0x00,
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0x18, 0x00, 0x00, 0x00, 0x10, 0x07, 0x00, 0xc0,
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0x05, 0x00, 0x80, 0x03, 0x00, 0x80, 0x01, 0x00,
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0x80, 0x08, 0x00, 0x80, 0x06, 0x00, 0x40, 0x04,
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0x00, 0x80, 0x02, 0x00, 0x80, 0x76, 0x64, 0x75,
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0x2d, 0xa7, 0x98, 0xfe, 0xc9, 0x12, 0x92, 0xc1,
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0x2f, 0x34, 0x84, 0x20, 0xc5 };
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uint32_t payload_len1 = sizeof(payload1);
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uint8_t payload2[] = { 0x83, 0xbb, 0x04, 0x00, 0x01, 0x00,
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0x02, 0x03, 0x8b, 0x00, 0x15, 0x00, 0x10, 0x30,
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0x82, 0x03, 0x87, 0x30, 0x82, 0x02, 0xf0, 0xa0,
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0x03, 0x02, 0x01, 0x02, 0x02, 0x01, 0x01, 0x30,
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0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
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0x0d, 0x01, 0x01, 0x04, 0x05, 0x00, 0x30, 0x78,
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0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,
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0x06, 0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30,
|
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0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x13, 0x0a,
|
|
0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e,
|
|
0x69, 0x61, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03,
|
|
0x55, 0x04, 0x07, 0x13, 0x09, 0x53, 0x75, 0x6e,
|
|
0x6e, 0x79, 0x76, 0x61, 0x6c, 0x65, 0x31, 0x19,
|
|
0x30, 0x17, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13,
|
|
0x10, 0x4d, 0x75, 0x53, 0x65, 0x63, 0x75, 0x72,
|
|
0x69, 0x74, 0x79, 0x2c, 0x20, 0x49, 0x6e, 0x63,
|
|
0x2e, 0x31, 0x25, 0x30, 0x23, 0x06, 0x09, 0x2a,
|
|
0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09, 0x01,
|
|
0x16, 0x16, 0x61, 0x74, 0x75, 0x72, 0x6e, 0x65,
|
|
0x72, 0x40, 0x6d, 0x75, 0x73, 0x65, 0x63, 0x75,
|
|
0x72, 0x69, 0x74, 0x79, 0x2e, 0x63, 0x6f, 0x6d,
|
|
0x30, 0x1e, 0x17, 0x0d, 0x30, 0x35, 0x30, 0x36,
|
|
0x30, 0x36, 0x32, 0x33, 0x32, 0x38, 0x35, 0x38,
|
|
0x5a, 0x17, 0x0d, 0x31, 0x33, 0x31, 0x30, 0x32,
|
|
0x37, 0x32, 0x33, 0x32, 0x38, 0x35, 0x38, 0x5a,
|
|
0x30, 0x81, 0x96, 0x31, 0x0b, 0x30, 0x09, 0x06,
|
|
0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53,
|
|
0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04,
|
|
0x08, 0x13, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66,
|
|
0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x12, 0x30,
|
|
0x10, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x09,
|
|
0x53, 0x75, 0x6e, 0x6e, 0x79, 0x76, 0x61, 0x6c,
|
|
0x65, 0x31, 0x19, 0x30, 0x17, 0x06, 0x03, 0x55,
|
|
0x04, 0x0a, 0x13, 0x10, 0x4d, 0x75, 0x53, 0x65,
|
|
0x63, 0x75, 0x72, 0x69, 0x74, 0x79, 0x2c, 0x20,
|
|
0x49, 0x6e, 0x63, 0x2e, 0x31, 0x1c, 0x30, 0x1a,
|
|
0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x13, 0x73,
|
|
0x74, 0x61, 0x6e, 0x2e, 0x6d, 0x75, 0x73, 0x65,
|
|
0x63, 0x75, 0x72, 0x69, 0x74, 0x79, 0x2e, 0x63,
|
|
0x6f, 0x6d, 0x31, 0x25, 0x30, 0x23, 0x06, 0x09,
|
|
0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09,
|
|
0x01, 0x16, 0x16, 0x61, 0x74, 0x75, 0x72, 0x6e,
|
|
0x65, 0x72, 0x40, 0x6d, 0x75, 0x73, 0x65, 0x63,
|
|
0x75, 0x72, 0x69, 0x74, 0x79, 0x2e, 0x63, 0x6f,
|
|
0x6d, 0x30, 0x81, 0x9f, 0x30, 0x0d, 0x06, 0x09,
|
|
0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
|
|
0x01, 0x05, 0x00, 0x03, 0x81, 0x8d, 0x00, 0x30,
|
|
0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xb4, 0xe7,
|
|
0x9b, 0x0a, 0xe8, 0xbb, 0xec, 0x4b, 0x1e, 0x5a,
|
|
0x37, 0x95, 0xa5, 0x18, 0x7d, 0xad, 0xa5, 0xbd,
|
|
0xa3, 0x6b, 0x5c, 0xd1, 0x51, 0xce, 0x38, 0xf3,
|
|
0x81, 0xb3, 0x85, 0x0e, 0xfe, 0x17, 0xef, 0x87,
|
|
0xcb, 0x7f, 0xc7, 0x92, 0xeb, 0xa0, 0x89, 0x76,
|
|
0x8b, 0xa3, 0x25, 0xb8, 0x20, 0xeb, 0xd8, 0x4a,
|
|
0xa9, 0xb0, 0x3b, 0x08, 0x81, 0xc1, 0x8e, 0x3c,
|
|
0x8f, 0x63, 0x8a, 0x47, 0xb5, 0x7f, 0x27, 0x4c,
|
|
0x21, 0x2f, 0x86, 0xd3, 0x66, 0x0a, 0x97, 0x2a,
|
|
0xe5, 0x9c, 0xd7, 0xa2, 0x5d, 0xb4, 0xce, 0xbc,
|
|
0x4e, 0x28, 0xdc, 0x25, 0x6b, 0x2e, 0x39, 0xf5,
|
|
0xbc, 0x98, 0x1b, 0x4c, 0x7c, 0x77, 0xa1, 0x61,
|
|
0x52, 0xfd, 0x95, 0x49, 0x70, 0xf8, 0x94, 0xfb,
|
|
0xa4, 0x11, 0x8a, 0x81, 0xa8, 0xd3, 0x26, 0x51,
|
|
0x40, 0x01, 0xb0, 0x70, 0x45, 0xd5, 0xe4, 0xc5,
|
|
0x49, 0x33, 0xb3, 0xed, 0xd8, 0xe7, 0x02, 0x03,
|
|
0x01, 0x00, 0x01, 0xa3, 0x82, 0x01, 0x00, 0x30,
|
|
0x81, 0xfd, 0x30, 0x09, 0x06, 0x03, 0x55, 0x1d,
|
|
0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x2c, 0x06,
|
|
0x09, 0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42,
|
|
0x01, 0x0d, 0x04, 0x1f, 0x16, 0x1d, 0x4f, 0x70,
|
|
0x65, 0x6e, 0x53, 0x53, 0x4c, 0x20, 0x47, 0x65,
|
|
0x6e, 0x65, 0x72, 0x61, 0x74, 0x65, 0x64, 0x20,
|
|
0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63,
|
|
0x61, 0x74, 0x65, 0x30, 0x1d, 0x06, 0x03, 0x55,
|
|
0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0xbe, 0x59,
|
|
0x54, 0xcf, 0x22, 0xe1, 0x74, 0xec, 0xe1, 0x8e,
|
|
0x5c, 0x06, 0x2b, 0xf7, 0x1a, 0x7a, 0x6a, 0x50,
|
|
0x67, 0x68, 0x30, 0x81, 0xa2, 0x06, 0x03, 0x55,
|
|
0x1d, 0x23, 0x04, 0x81, 0x9a, 0x30, 0x81, 0x97,
|
|
0x80, 0x14, 0x7d, 0x02, 0x2d, 0x18, 0xe0, 0xe3,
|
|
0x76, 0x45, 0x4b, 0x2e, 0x08, 0x0a, 0xd3, 0xe5,
|
|
0xd4, 0x92, 0x22, 0x71, 0xa4, 0xde, 0xa1, 0x7c,
|
|
0xa4, 0x7a, 0x30, 0x78, 0x31, 0x0b, 0x30, 0x09,
|
|
0x06, 0x03, 0x55, 0x04, 0x06, 0x13, 0x02, 0x55,
|
|
0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55,
|
|
0x04, 0x08, 0x13, 0x0a, 0x43, 0x61, 0x6c, 0x69,
|
|
0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x12,
|
|
0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13,
|
|
0x09, 0x53, 0x75, 0x6e, 0x6e, 0x79, 0x76, 0x61,
|
|
0x6c, 0x65, 0x31, 0x19, 0x30, 0x17, 0x06, 0x03,
|
|
0x55, 0x04, 0x0a, 0x13, 0x10, 0x4d, 0x75, 0x53,
|
|
0x65, 0x63, 0x75, 0x72, 0x69, 0x74, 0x79, 0x2c,
|
|
0x20, 0x49, 0x6e, 0x63, 0x2e, 0x31, 0x25, 0x30,
|
|
0x23, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
|
|
0x0d, 0x01, 0x09, 0x01, 0x16, 0x16, 0x61, 0x74,
|
|
0x75, 0x72, 0x6e, 0x65, 0x72, 0x40, 0x6d, 0x75,
|
|
0x73, 0x65, 0x63, 0x75, 0x72, 0x69, 0x74, 0x79,
|
|
0x2e, 0x63, 0x6f, 0x6d, 0x82, 0x01, 0x00, 0x30,
|
|
0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7,
|
|
0x0d, 0x01, 0x01, 0x04, 0x05, 0x00, 0x03, 0x81,
|
|
0x81, 0x00, 0x4a, 0x5a, 0xd9, 0xd4, 0xe1, 0xe9,
|
|
0xdd, 0xd5, 0x5c, 0xd3, 0x27, 0x2b, 0x01, 0x95,
|
|
0x1b, 0x8c, 0xa9, 0x9c, 0x93, 0x8e, 0x01, 0x72,
|
|
0xbf, 0xbc, 0x74, 0xbb, 0x30, 0x61, 0xa0, 0x52,
|
|
0xfb, 0xe0, 0xa8, 0x8e, 0x2b, 0x34, 0xe8, 0xf3,
|
|
0x4a, 0xfc, 0xc0, 0xb4, 0x63, 0x83, 0xa8, 0xb4,
|
|
0x5e, 0xb9, 0xe4, 0x21, 0x2f, 0x6b, 0x04, 0x84,
|
|
0x14, 0x98, 0xf0, 0xde, 0x18, 0xd0, 0xa7, 0x9a,
|
|
0x0d, 0x6a, 0xd5, 0xa9, 0x44, 0x57, 0xf9, 0xb4,
|
|
0xdb, 0x59, 0x56, 0x3e, 0x26, 0x49, 0x98, 0xf3,
|
|
0x39, 0x8b, 0x8a, 0x66, 0xd2, 0xcb, 0xa9, 0x48,
|
|
0xda, 0x71, 0xc7, 0x53, 0x28, 0x15, 0xc4, 0xc3,
|
|
0x4c, 0xbb, 0xab, 0xc1, 0x69, 0xfb, 0x37, 0xfa,
|
|
0x99, 0x2b, 0x2b, 0xfa, 0x9d, 0x33, 0xaa, 0x17,
|
|
0xb2, 0xb1, 0x78, 0x9e, 0xa5, 0x50, 0x0a, 0x7c,
|
|
0x4f, 0x8f, 0x4a, 0x93, 0xc2, 0x36, 0x55, 0x2e,
|
|
0x17, 0x98, 0x07, 0x00, 0xc0, 0x03, 0x00, 0x80,
|
|
0x01, 0x00, 0x80, 0x08, 0x00, 0x80, 0x06, 0x00,
|
|
0x40, 0x04, 0x00, 0x80, 0x02, 0x00, 0x80, 0x57,
|
|
0xbe, 0x5d, 0x5d, 0x97, 0xad, 0x58, 0x25, 0xf1,
|
|
0x78, 0xeb, 0x27, 0xba, 0x45, 0xe8, 0x44 };
|
|
uint32_t payload_len2 = sizeof(payload2);
|
|
uint8_t payload3[] = { 0x80, 0x92, 0x02, 0x07, 0x00, 0xc0,
|
|
0x00, 0x00, 0x00, 0x80, 0x00, 0x08, 0x98, 0xb7,
|
|
0xaf, 0x94, 0x0a, 0x00, 0x0c, 0x02, 0xb1, 0x4d,
|
|
0x50, 0x50, 0x17, 0x78, 0x16, 0xba, 0x22, 0x7b,
|
|
0x25, 0xab, 0x09, 0x9f, 0x30, 0xd6, 0xce, 0xa8,
|
|
0xf6, 0x04, 0x41, 0xb3, 0xa4, 0x16, 0x33, 0x18,
|
|
0x7b, 0x24, 0xa6, 0x30, 0x75, 0x67, 0x7a, 0xa7,
|
|
0xac, 0xd2, 0xc2, 0xe3, 0x00, 0x13, 0xb0, 0x39,
|
|
0xb0, 0x50, 0x2b, 0x55, 0x93, 0xd7, 0x65, 0x1f,
|
|
0x00, 0x4f, 0xde, 0x15, 0xee, 0xa8, 0x9c, 0xbd,
|
|
0x86, 0xaf, 0x99, 0x7a, 0x27, 0x53, 0xb3, 0x5a,
|
|
0x4b, 0x90, 0xbd, 0xac, 0xc9, 0xd3, 0xc5, 0x31,
|
|
0x06, 0x19, 0xd8, 0x2f, 0x6b, 0x3a, 0x31, 0xb4,
|
|
0x34, 0xb8, 0x31, 0xec, 0x18, 0x6c, 0xad, 0x9e,
|
|
0xa8, 0xf5, 0x3a, 0x9d, 0xd3, 0x74, 0x78, 0x33,
|
|
0x06, 0x8b, 0x75, 0xc9, 0x39, 0xe8, 0x59, 0x98,
|
|
0xc9, 0x96, 0xca, 0xc0, 0x2f, 0x1c, 0x53, 0xda,
|
|
0x76, 0xab, 0xf1, 0x42, 0x6c, 0x71, 0xaf, 0xc9,
|
|
0x52, 0xbe, 0xb0, 0x7a, 0x7d, 0xe1 };
|
|
uint32_t payload_len3 = sizeof(payload3);
|
|
uint8_t payload4[] = { 0x00, 0x28, 0x07, 0xb8, 0xbb, 0x2c,
|
|
0xce, 0xbe, 0x72, 0xa9, 0x61, 0xef, 0xbf, 0xfa,
|
|
0x50, 0x92, 0x6d, 0x62, 0x77, 0xa3, 0x7b, 0x75,
|
|
0xd6, 0x6e, 0x82, 0x12, 0x27, 0x87, 0x23, 0xce,
|
|
0x9d, 0x44, 0xfe, 0x1f, 0xd0, 0x0e, 0x62, 0xff,
|
|
0xd0, 0x24, 0xea, 0xc0, 0x18 };
|
|
uint32_t payload_len4 = sizeof(payload4);
|
|
uint8_t payload5[] = { 0x00, 0x28, 0x07, 0x9a, 0x1d, 0xe2,
|
|
0x5f, 0x79, 0xcc, 0x14, 0x5b, 0xb5, 0xad, 0x4f,
|
|
0x15, 0x86, 0xe6, 0x03, 0x13, 0xe0, 0x96, 0x96,
|
|
0x85, 0x46, 0x79, 0x0e, 0x3a, 0xe2, 0x84, 0x8d,
|
|
0x8d, 0x88, 0xba, 0x7c, 0x6d, 0xa4, 0xb9, 0x9a,
|
|
0xb1, 0x9f, 0x78, 0xe4, 0x83 };
|
|
uint32_t payload_len5 = sizeof(payload5);
|
|
TcpSession ssn;
|
|
TCPHdr tcph;
|
|
Packet *p1 = UTHBuildPacket(payload1, payload_len1, IPPROTO_TCP);
|
|
Packet *p2 = UTHBuildPacket(payload2, payload_len2, IPPROTO_TCP);
|
|
Packet *p3 = UTHBuildPacket(payload3, payload_len3, IPPROTO_TCP);
|
|
Packet *p4 = UTHBuildPacket(payload4, payload_len4, IPPROTO_TCP);
|
|
Packet *p5 = UTHBuildPacket(payload5, payload_len5, IPPROTO_TCP);
|
|
|
|
memset(&f, 0, sizeof(f));
|
|
memset(&ssn, 0, sizeof(ssn));
|
|
memset(&tcph, 0, sizeof(tcph));
|
|
|
|
StreamTcpInitConfig(TRUE);
|
|
TcpReassemblyThreadCtx *ra_ctx = StreamTcpReassembleInitThreadCtx();
|
|
AppLayerDetectProtoThreadInit();
|
|
|
|
ssn.server.ra_base_seq = 390131220UL;
|
|
ssn.server.isn = 390131220UL;
|
|
ssn.server.last_ack = 427643676UL;
|
|
ssn.client.ra_base_seq = 4276431676UL;
|
|
ssn.client.isn = 4276431676UL;
|
|
ssn.client.last_ack = 390133221UL;
|
|
ssn.alproto = ALPROTO_UNKNOWN;
|
|
|
|
f.protoctx = (void *)&ssn;
|
|
|
|
tcph.th_win = htons(5480);
|
|
tcph.th_seq = htonl(4276431677UL);
|
|
tcph.th_ack = htonl(390131221UL);
|
|
tcph.th_flags = TH_ACK|TH_PUSH;
|
|
p1->tcph = &tcph;
|
|
p1->flowflags = FLOW_PKT_TOSERVER;
|
|
ssn.state = TCP_ESTABLISHED;
|
|
|
|
TcpStream *s = NULL;
|
|
s = &ssn.client;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p1) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
p2->flowflags = FLOW_PKT_TOCLIENT;
|
|
tcph.th_seq = htonl(390131221UL);
|
|
tcph.th_ack = htonl(4276431728UL);
|
|
p2->tcph = &tcph;
|
|
p2->flow = &f;
|
|
s = &ssn.server;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p2) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
if (StreamTcpReassembleProcessAppLayer(ra_ctx) < 0) {
|
|
printf("failed in processing stream smsgs\n");
|
|
goto end;
|
|
}
|
|
|
|
p3->flowflags = FLOW_PKT_TOSERVER;
|
|
tcph.th_seq = htonl(4276431728UL);
|
|
tcph.th_ack = htonl(390132178UL);
|
|
p3->tcph = &tcph;
|
|
p3->flow = &f;
|
|
s = &ssn.client;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p3) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
if (StreamTcpReassembleProcessAppLayer(ra_ctx) < 0) {
|
|
printf("failed in processing stream smsgs\n");
|
|
goto end;
|
|
}
|
|
|
|
p4->flowflags = FLOW_PKT_TOCLIENT;
|
|
tcph.th_seq = htonl(390132178UL);
|
|
tcph.th_ack = htonl(4276431876UL);
|
|
p4->tcph = &tcph;
|
|
p4->flow = &f;
|
|
s = &ssn.server;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p4) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
if (StreamTcpReassembleProcessAppLayer(ra_ctx) < 0) {
|
|
printf("failed in processing stream smsgs\n");
|
|
goto end;
|
|
}
|
|
|
|
p5->flowflags = FLOW_PKT_TOSERVER;
|
|
tcph.th_seq = htonl(4276431876UL);
|
|
tcph.th_ack = htonl(390132221UL);
|
|
p5->tcph = &tcph;
|
|
p5->flow = &f;
|
|
s = &ssn.client;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p5) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
if (StreamTcpReassembleProcessAppLayer(ra_ctx) < 0) {
|
|
printf("failed in processing stream smsgs\n");
|
|
goto end;
|
|
}
|
|
|
|
tcph.th_seq = htonl(390132221UL);
|
|
tcph.th_ack = htonl(4276431919UL);
|
|
s = &ssn.server;
|
|
|
|
if (StreamTcpReassembleHandleSegment(ra_ctx, &ssn, s, p4) == -1) {
|
|
printf("failed in segments reassembly, while processing toserver packet\n");
|
|
goto end;
|
|
}
|
|
|
|
if (StreamTcpReassembleProcessAppLayer(ra_ctx) < 0) {
|
|
printf("failed in processing stream smsgs\n");
|
|
goto end;
|
|
}
|
|
|
|
SslState *ssl_state = ssn.aldata[AlpGetStateIdx(ALPROTO_SSL)];
|
|
if (ssl_state == NULL) {
|
|
printf("no ssl state: ");
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
if (ssl_state->client_content_type != 0x7) {
|
|
printf("expected content_type %" PRIu8 ", got %" PRIu8 ": ", 0x7,
|
|
ssl_state->client_content_type);
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
if (ssl_state->client_version != SSL_CLIENT_VERSION) {
|
|
printf("expected version %04" PRIu16 ", got %04" PRIu16 ": ",
|
|
SSL_CLIENT_VERSION, ssl_state->client_version);
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
uint16_t app_layer_sid = AppLayerParserGetStorageId();
|
|
AppLayerParserStateStore *parser_state_store = (AppLayerParserStateStore *)
|
|
ssn.aldata[app_layer_sid];
|
|
AppLayerParserState *parser_state = &parser_state_store->to_server;
|
|
|
|
if (!(parser_state->flags & APP_LAYER_PARSER_NO_INSPECTION) &&
|
|
!(ssn.flags & STREAMTCP_FLAG_NOCLIENT_REASSEMBLY) &&
|
|
!(ssn.flags & STREAMTCP_FLAG_NOSERVER_REASSEMBLY)) {
|
|
printf("The flags should be set\n");
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
|
|
if (!(f.flags & FLOW_NOPAYLOAD_INSPECTION)) {
|
|
printf("The flags should be set\n");
|
|
result = 0;
|
|
goto end;
|
|
}
|
|
end:
|
|
StreamL7DataPtrFree(&ssn);
|
|
StreamTcpFreeConfig(TRUE);
|
|
return result;
|
|
}
|
|
#endif /* UNITTESTS */
|
|
|
|
void SSLParserRegisterTests(void) {
|
|
#ifdef UNITTESTS
|
|
UtRegisterTest("SSLParserTest01", SSLParserTest01, 1);
|
|
UtRegisterTest("SSLParserTest02", SSLParserTest02, 1);
|
|
UtRegisterTest("SSLParserTest03", SSLParserTest03, 1);
|
|
#endif /* UNITTESTS */
|
|
}
|