mirror of https://github.com/OISF/suricata
detect: add (mpm) keyword tls_cert_fingerprint
Reimplement keyword to match on SHA-1 fingerprint of TLS
certificate as a mpm keyword.
alert tls any any -> any (msg:"TLS cert fingerprint test";
tls_cert_fingerprint;
content:"4a:a3:66:76:82:cb:6b:23:bb:c3:58:47:23:a4:63:a7:78:a4:a1:18";
sid:12345;)
pull/3009/head
Mats Klepsland
8 years ago
committed by
Victor Julien
parent
6ab5d42c92
commit
5e6b8c47df
@ -0,0 +1,464 @@
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/* Copyright (C) 2017 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 Mats Klepsland <mats.klepsland@gmail.com>
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*
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* Implements support for tls_cert_fingerprint keyword.
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*/
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#include "suricata-common.h"
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#include "threads.h"
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#include "debug.h"
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#include "decode.h"
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#include "detect.h"
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#include "detect-parse.h"
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#include "detect-engine.h"
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#include "detect-engine-mpm.h"
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#include "detect-engine-tls.h"
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#include "detect-content.h"
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#include "detect-pcre.h"
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#include "detect-tls-cert-fingerprint.h"
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#include "flow.h"
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#include "flow-util.h"
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#include "flow-var.h"
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#include "util-debug.h"
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#include "util-unittest.h"
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#include "util-spm.h"
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#include "util-print.h"
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#include "stream-tcp.h"
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#include "app-layer.h"
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#include "app-layer-ssl.h"
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#include "util-unittest.h"
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#include "util-unittest-helper.h"
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static int DetectTlsFingerprintSetup(DetectEngineCtx *, Signature *, const char *);
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static void DetectTlsFingerprintRegisterTests(void);
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static int g_tls_cert_fingerprint_buffer_id = 0;
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/**
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* \brief Registration function for keyword: tls_cert_fingerprint
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*/
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void DetectTlsFingerprintRegister(void)
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{
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].name = "tls_cert_fingerprint";
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].desc = "content modifier to match the TLS cert fingerprint buffer";
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].url = DOC_URL DOC_VERSION "/rules/tls-keywords.html#tls-cert-fingerprint";
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].Match = NULL;
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].Setup = DetectTlsFingerprintSetup;
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].Free = NULL;
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].RegisterTests = DetectTlsFingerprintRegisterTests;
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sigmatch_table[DETECT_AL_TLS_CERT_FINGERPRINT].flags |= SIGMATCH_NOOPT;
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DetectAppLayerMpmRegister("tls_cert_fingerprint", SIG_FLAG_TOCLIENT, 2,
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PrefilterTxTlsFingerprintRegister);
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DetectAppLayerInspectEngineRegister("tls_cert_fingerprint", ALPROTO_TLS,
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SIG_FLAG_TOCLIENT, TLS_STATE_CERT_READY, DetectEngineInspectTlsFingerprint);
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g_tls_cert_fingerprint_buffer_id = DetectBufferTypeGetByName("tls_cert_fingerprint");
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}
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/**
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* \brief this function setup the tls_cert_fingerprint modifier keyword used in the rule
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*
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* \param de_ctx Pointer to the Detection Engine Context
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* \param s Pointer to the Signature to which the current keyword belongs
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* \param str Should hold an empty string always
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*
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* \retval 0 On success
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*/
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static int DetectTlsFingerprintSetup(DetectEngineCtx *de_ctx, Signature *s,
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const char *str)
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{
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s->init_data->list = g_tls_cert_fingerprint_buffer_id;
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if (DetectSignatureSetAppProto(s, ALPROTO_TLS) != 0)
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return -1;
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return 0;
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}
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#ifdef UNITTESTS
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/**
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* \test Test that a signature containing tls_cert_fingerprint is correctly parsed
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* and that the keyword is registered.
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*/
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static int DetectTlsFingerprintTest01(void)
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{
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DetectEngineCtx *de_ctx = NULL;
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SigMatch *sm = NULL;
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de_ctx = DetectEngineCtxInit();
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FAIL_IF_NULL(de_ctx);
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de_ctx->flags |= DE_QUIET;
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de_ctx->sig_list = SigInit(de_ctx, "alert tls any any -> any any "
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"(msg:\"Testing tls_cert_fingerprint\"; "
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"tls_cert_fingerprint; content:\"XX:XX:XX\"; sid:1;)");
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FAIL_IF_NULL(de_ctx->sig_list);
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/* sm should not be in the MATCH list */
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sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_MATCH];
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FAIL_IF_NOT_NULL(sm);
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sm = de_ctx->sig_list->sm_lists[g_tls_cert_fingerprint_buffer_id];
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FAIL_IF_NULL(sm);
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FAIL_IF(sm->type != DETECT_CONTENT);
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FAIL_IF_NOT_NULL(sm->next);
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SigGroupCleanup(de_ctx);
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SigCleanSignatures(de_ctx);
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DetectEngineCtxFree(de_ctx);
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PASS;
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}
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/**
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* \test Test matching for fingerprint of a certificate.
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*/
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static int DetectTlsFingerprintTest02(void)
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{
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/* client hello */
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uint8_t client_hello[] = {
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0x16, 0x03, 0x01, 0x00, 0xc8, 0x01, 0x00, 0x00,
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0xc4, 0x03, 0x03, 0xd6, 0x08, 0x5a, 0xa2, 0x86,
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0x5b, 0x85, 0xd4, 0x40, 0xab, 0xbe, 0xc0, 0xbc,
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0x41, 0xf2, 0x26, 0xf0, 0xfe, 0x21, 0xee, 0x8b,
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0x4c, 0x7e, 0x07, 0xc8, 0xec, 0xd2, 0x00, 0x46,
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0x4c, 0xeb, 0xb7, 0x00, 0x00, 0x16, 0xc0, 0x2b,
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0xc0, 0x2f, 0xc0, 0x0a, 0xc0, 0x09, 0xc0, 0x13,
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0xc0, 0x14, 0x00, 0x33, 0x00, 0x39, 0x00, 0x2f,
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0x00, 0x35, 0x00, 0x0a, 0x01, 0x00, 0x00, 0x85,
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0x00, 0x00, 0x00, 0x12, 0x00, 0x10, 0x00, 0x00,
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0x0d, 0x77, 0x77, 0x77, 0x2e, 0x67, 0x6f, 0x6f,
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0x67, 0x6c, 0x65, 0x2e, 0x6e, 0x6f, 0xff, 0x01,
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0x00, 0x01, 0x00, 0x00, 0x0a, 0x00, 0x08, 0x00,
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0x06, 0x00, 0x17, 0x00, 0x18, 0x00, 0x19, 0x00,
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0x0b, 0x00, 0x02, 0x01, 0x00, 0x00, 0x23, 0x00,
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0x00, 0x33, 0x74, 0x00, 0x00, 0x00, 0x10, 0x00,
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0x29, 0x00, 0x27, 0x05, 0x68, 0x32, 0x2d, 0x31,
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0x36, 0x05, 0x68, 0x32, 0x2d, 0x31, 0x35, 0x05,
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0x68, 0x32, 0x2d, 0x31, 0x34, 0x02, 0x68, 0x32,
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0x08, 0x73, 0x70, 0x64, 0x79, 0x2f, 0x33, 0x2e,
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0x31, 0x08, 0x68, 0x74, 0x74, 0x70, 0x2f, 0x31,
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0x2e, 0x31, 0x00, 0x05, 0x00, 0x05, 0x01, 0x00,
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0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x16, 0x00,
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0x14, 0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02,
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0x01, 0x04, 0x03, 0x05, 0x03, 0x06, 0x03, 0x02,
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0x03, 0x04, 0x02, 0x02, 0x02
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};
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/* server hello */
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uint8_t server_hello[] = {
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0x16, 0x03, 0x03, 0x00, 0x48, 0x02, 0x00, 0x00,
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0x44, 0x03, 0x03, 0x57, 0x91, 0xb8, 0x63, 0xdd,
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0xdb, 0xbb, 0x23, 0xcf, 0x0b, 0x43, 0x02, 0x1d,
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0x46, 0x11, 0x27, 0x5c, 0x98, 0xcf, 0x67, 0xe1,
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0x94, 0x3d, 0x62, 0x7d, 0x38, 0x48, 0x21, 0x23,
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0xa5, 0x62, 0x31, 0x00, 0xc0, 0x2f, 0x00, 0x00,
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0x1c, 0xff, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x23, 0x00, 0x00, 0x00, 0x10,
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0x00, 0x05, 0x00, 0x03, 0x02, 0x68, 0x32, 0x00,
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0x0b, 0x00, 0x02, 0x01, 0x00
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};
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/* certificate */
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uint8_t certificate[] = {
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0x16, 0x03, 0x03, 0x04, 0x93, 0x0b, 0x00, 0x04,
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0x8f, 0x00, 0x04, 0x8c, 0x00, 0x04, 0x89, 0x30,
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0x82, 0x04, 0x85, 0x30, 0x82, 0x03, 0x6d, 0xa0,
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0x03, 0x02, 0x01, 0x02, 0x02, 0x08, 0x5c, 0x19,
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0xb7, 0xb1, 0x32, 0x3b, 0x1c, 0xa1, 0x30, 0x0d,
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0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
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0x01, 0x01, 0x0b, 0x05, 0x00, 0x30, 0x49, 0x31,
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0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06,
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0x13, 0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11,
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0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x0a, 0x47,
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0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x49, 0x6e,
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0x63, 0x31, 0x25, 0x30, 0x23, 0x06, 0x03, 0x55,
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0x04, 0x03, 0x13, 0x1c, 0x47, 0x6f, 0x6f, 0x67,
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0x6c, 0x65, 0x20, 0x49, 0x6e, 0x74, 0x65, 0x72,
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0x6e, 0x65, 0x74, 0x20, 0x41, 0x75, 0x74, 0x68,
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0x6f, 0x72, 0x69, 0x74, 0x79, 0x20, 0x47, 0x32,
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0x30, 0x1e, 0x17, 0x0d, 0x31, 0x36, 0x30, 0x37,
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0x31, 0x33, 0x31, 0x33, 0x32, 0x34, 0x35, 0x32,
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0x5a, 0x17, 0x0d, 0x31, 0x36, 0x31, 0x30, 0x30,
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0x35, 0x31, 0x33, 0x31, 0x36, 0x30, 0x30, 0x5a,
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0x30, 0x65, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03,
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0x55, 0x04, 0x06, 0x13, 0x02, 0x55, 0x53, 0x31,
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0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08,
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0x0c, 0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f,
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0x72, 0x6e, 0x69, 0x61, 0x31, 0x16, 0x30, 0x14,
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0x06, 0x03, 0x55, 0x04, 0x07, 0x0c, 0x0d, 0x4d,
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0x6f, 0x75, 0x6e, 0x74, 0x61, 0x69, 0x6e, 0x20,
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0x56, 0x69, 0x65, 0x77, 0x31, 0x13, 0x30, 0x11,
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0x06, 0x03, 0x55, 0x04, 0x0a, 0x0c, 0x0a, 0x47,
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0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x20, 0x49, 0x6e,
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0x63, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55,
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0x04, 0x03, 0x0c, 0x0b, 0x2a, 0x2e, 0x67, 0x6f,
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0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x6e, 0x6f, 0x30,
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0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a,
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0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01,
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0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00, 0x30,
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0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00,
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0xa5, 0x0a, 0xb9, 0xb1, 0xca, 0x36, 0xd1, 0xae,
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0x22, 0x38, 0x07, 0x06, 0xc9, 0x1a, 0x56, 0x4f,
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0xbb, 0xdf, 0xa8, 0x6d, 0xbd, 0xee, 0x76, 0x16,
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0xbc, 0x53, 0x3c, 0x03, 0x6a, 0x5c, 0x94, 0x50,
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0x87, 0x2f, 0x28, 0xb4, 0x4e, 0xd5, 0x9b, 0x8f,
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0xfe, 0x02, 0xde, 0x2a, 0x83, 0x01, 0xf9, 0x45,
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0x61, 0x0e, 0x66, 0x0e, 0x24, 0x22, 0xe2, 0x59,
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0x66, 0x0d, 0xd3, 0xe9, 0x77, 0x8a, 0x7e, 0x42,
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0xaa, 0x5a, 0xf9, 0x05, 0xbf, 0x30, 0xc7, 0x03,
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0x2b, 0xdc, 0xa6, 0x9c, 0xe0, 0x9f, 0x0d, 0xf1,
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0x28, 0x19, 0xf8, 0xf2, 0x02, 0xfa, 0xbd, 0x62,
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0xa0, 0xf3, 0x02, 0x2b, 0xcd, 0xf7, 0x09, 0x04,
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0x3b, 0x52, 0xd8, 0x65, 0x4b, 0x4a, 0x70, 0xe4,
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0x57, 0xc9, 0x2e, 0x2a, 0xf6, 0x9c, 0x6e, 0xd8,
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0xde, 0x01, 0x52, 0xc9, 0x6f, 0xe9, 0xef, 0x82,
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0xbc, 0x0b, 0x95, 0xb2, 0xef, 0xcb, 0x91, 0xa6,
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0x0b, 0x2d, 0x14, 0xc6, 0x00, 0xa9, 0x33, 0x86,
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0x64, 0x00, 0xd4, 0x92, 0x19, 0x53, 0x3d, 0xfd,
|
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0xcd, 0xc6, 0x1a, 0xf2, 0x0e, 0x67, 0xc2, 0x1d,
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0x2c, 0xe0, 0xe8, 0x29, 0x97, 0x1c, 0xb6, 0xc4,
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0xb2, 0x02, 0x0c, 0x83, 0xb8, 0x60, 0x61, 0xf5,
|
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0x61, 0x2d, 0x73, 0x5e, 0x85, 0x4d, 0xbd, 0x0d,
|
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0xe7, 0x1a, 0x37, 0x56, 0x8d, 0xe5, 0x50, 0x0c,
|
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0xc9, 0x64, 0x4c, 0x11, 0xea, 0xf3, 0xcb, 0x26,
|
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0x34, 0xbd, 0x02, 0xf5, 0xc1, 0xfb, 0xa2, 0xec,
|
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0x27, 0xbb, 0x60, 0xbe, 0x0b, 0xf6, 0xe7, 0x3c,
|
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0x2d, 0xc9, 0xe7, 0xb0, 0x30, 0x28, 0x17, 0x3d,
|
||||
0x90, 0xf1, 0x63, 0x8e, 0x49, 0xf7, 0x15, 0x78,
|
||||
0x21, 0xcc, 0x45, 0xe6, 0x86, 0xb2, 0xd8, 0xb0,
|
||||
0x2e, 0x5a, 0xb0, 0x58, 0xd3, 0xb6, 0x11, 0x40,
|
||||
0xae, 0x81, 0x1f, 0x6b, 0x7a, 0xaf, 0x40, 0x50,
|
||||
0xf9, 0x2e, 0x81, 0x8b, 0xec, 0x26, 0x11, 0x3f,
|
||||
0x02, 0x03, 0x01, 0x00, 0x01, 0xa3, 0x82, 0x01,
|
||||
0x53, 0x30, 0x82, 0x01, 0x4f, 0x30, 0x1d, 0x06,
|
||||
0x03, 0x55, 0x1d, 0x25, 0x04, 0x16, 0x30, 0x14,
|
||||
0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07,
|
||||
0x03, 0x01, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05,
|
||||
0x05, 0x07, 0x03, 0x02, 0x30, 0x21, 0x06, 0x03,
|
||||
0x55, 0x1d, 0x11, 0x04, 0x1a, 0x30, 0x18, 0x82,
|
||||
0x0b, 0x2a, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c,
|
||||
0x65, 0x2e, 0x6e, 0x6f, 0x82, 0x09, 0x67, 0x6f,
|
||||
0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x6e, 0x6f, 0x30,
|
||||
0x68, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05,
|
||||
0x07, 0x01, 0x01, 0x04, 0x5c, 0x30, 0x5a, 0x30,
|
||||
0x2b, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05,
|
||||
0x07, 0x30, 0x02, 0x86, 0x1f, 0x68, 0x74, 0x74,
|
||||
0x70, 0x3a, 0x2f, 0x2f, 0x70, 0x6b, 0x69, 0x2e,
|
||||
0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x63,
|
||||
0x6f, 0x6d, 0x2f, 0x47, 0x49, 0x41, 0x47, 0x32,
|
||||
0x2e, 0x63, 0x72, 0x74, 0x30, 0x2b, 0x06, 0x08,
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||||
0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x30, 0x01,
|
||||
0x86, 0x1f, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f,
|
||||
0x2f, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73,
|
||||
0x31, 0x2e, 0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65,
|
||||
0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x6f, 0x63, 0x73,
|
||||
0x70, 0x30, 0x1d, 0x06, 0x03, 0x55, 0x1d, 0x0e,
|
||||
0x04, 0x16, 0x04, 0x14, 0xc6, 0x53, 0x87, 0x42,
|
||||
0x2d, 0xc8, 0xee, 0x7a, 0x62, 0x1e, 0x83, 0xdb,
|
||||
0x0d, 0xe2, 0x32, 0xeb, 0x8b, 0xaf, 0x69, 0x40,
|
||||
0x30, 0x0c, 0x06, 0x03, 0x55, 0x1d, 0x13, 0x01,
|
||||
0x01, 0xff, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1f,
|
||||
0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30,
|
||||
0x16, 0x80, 0x14, 0x4a, 0xdd, 0x06, 0x16, 0x1b,
|
||||
0xbc, 0xf6, 0x68, 0xb5, 0x76, 0xf5, 0x81, 0xb6,
|
||||
0xbb, 0x62, 0x1a, 0xba, 0x5a, 0x81, 0x2f, 0x30,
|
||||
0x21, 0x06, 0x03, 0x55, 0x1d, 0x20, 0x04, 0x1a,
|
||||
0x30, 0x18, 0x30, 0x0c, 0x06, 0x0a, 0x2b, 0x06,
|
||||
0x01, 0x04, 0x01, 0xd6, 0x79, 0x02, 0x05, 0x01,
|
||||
0x30, 0x08, 0x06, 0x06, 0x67, 0x81, 0x0c, 0x01,
|
||||
0x02, 0x02, 0x30, 0x30, 0x06, 0x03, 0x55, 0x1d,
|
||||
0x1f, 0x04, 0x29, 0x30, 0x27, 0x30, 0x25, 0xa0,
|
||||
0x23, 0xa0, 0x21, 0x86, 0x1f, 0x68, 0x74, 0x74,
|
||||
0x70, 0x3a, 0x2f, 0x2f, 0x70, 0x6b, 0x69, 0x2e,
|
||||
0x67, 0x6f, 0x6f, 0x67, 0x6c, 0x65, 0x2e, 0x63,
|
||||
0x6f, 0x6d, 0x2f, 0x47, 0x49, 0x41, 0x47, 0x32,
|
||||
0x2e, 0x63, 0x72, 0x6c, 0x30, 0x0d, 0x06, 0x09,
|
||||
0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
|
||||
0x0b, 0x05, 0x00, 0x03, 0x82, 0x01, 0x01, 0x00,
|
||||
0x7b, 0x27, 0x00, 0x46, 0x8f, 0xfd, 0x5b, 0xff,
|
||||
0xcb, 0x05, 0x9b, 0xf7, 0xf1, 0x68, 0xf6, 0x9a,
|
||||
0x7b, 0xba, 0x53, 0xdf, 0x63, 0xed, 0x11, 0x94,
|
||||
0x39, 0xf2, 0xd0, 0x20, 0xcd, 0xa3, 0xc4, 0x98,
|
||||
0xa5, 0x10, 0x74, 0xe7, 0x10, 0x6d, 0x07, 0xf8,
|
||||
0x33, 0x87, 0x05, 0x43, 0x0e, 0x64, 0x77, 0x09,
|
||||
0x18, 0x4f, 0x38, 0x2e, 0x45, 0xae, 0xa8, 0x34,
|
||||
0x3a, 0xa8, 0x33, 0xac, 0x9d, 0xdd, 0x25, 0x91,
|
||||
0x59, 0x43, 0xbe, 0x0f, 0x87, 0x16, 0x2f, 0xb5,
|
||||
0x27, 0xfd, 0xce, 0x2f, 0x35, 0x5d, 0x12, 0xa1,
|
||||
0x66, 0xac, 0xf7, 0x95, 0x38, 0x0f, 0xe5, 0xb1,
|
||||
0x18, 0x18, 0xe6, 0x80, 0x52, 0x31, 0x8a, 0x66,
|
||||
0x02, 0x52, 0x1a, 0xa4, 0x32, 0x6a, 0x61, 0x05,
|
||||
0xcf, 0x1d, 0xf9, 0x90, 0x73, 0xf0, 0xeb, 0x20,
|
||||
0x31, 0x7b, 0x2e, 0xc0, 0xb0, 0xfb, 0x5c, 0xcc,
|
||||
0xdc, 0x76, 0x55, 0x72, 0xaf, 0xb1, 0x05, 0xf4,
|
||||
0xad, 0xf9, 0xd7, 0x73, 0x5c, 0x2c, 0xbf, 0x0d,
|
||||
0x84, 0x18, 0x01, 0x1d, 0x4d, 0x08, 0xa9, 0x4e,
|
||||
0x37, 0xb7, 0x58, 0xc4, 0x05, 0x0e, 0x65, 0x63,
|
||||
0xd2, 0x88, 0x02, 0xf5, 0x82, 0x17, 0x08, 0xd5,
|
||||
0x8f, 0x80, 0xc7, 0x82, 0x29, 0xbb, 0xe1, 0x04,
|
||||
0xbe, 0xf6, 0xe1, 0x8c, 0xbc, 0x3a, 0xf8, 0xf9,
|
||||
0x56, 0xda, 0xdc, 0x8e, 0xc6, 0xe6, 0x63, 0x98,
|
||||
0x12, 0x08, 0x41, 0x2c, 0x9d, 0x7c, 0x82, 0x0d,
|
||||
0x1e, 0xea, 0xba, 0xde, 0x32, 0x09, 0xda, 0x52,
|
||||
0x24, 0x4f, 0xcc, 0xb6, 0x09, 0x33, 0x8b, 0x00,
|
||||
0xf9, 0x83, 0xb3, 0xc6, 0xa4, 0x90, 0x49, 0x83,
|
||||
0x2d, 0x36, 0xd9, 0x11, 0x78, 0xd0, 0x62, 0x9f,
|
||||
0xc4, 0x8f, 0x84, 0xba, 0x7f, 0xaa, 0x04, 0xf1,
|
||||
0xd9, 0xa4, 0xad, 0x5d, 0x63, 0xee, 0x72, 0xc6,
|
||||
0x4d, 0xd1, 0x4b, 0x41, 0x8f, 0x40, 0x0f, 0x7d,
|
||||
0xcd, 0xb8, 0x2e, 0x5b, 0x6e, 0x21, 0xc9, 0x3d
|
||||
};
|
||||
|
||||
Flow f;
|
||||
SSLState *ssl_state = NULL;
|
||||
TcpSession ssn;
|
||||
Packet *p1 = NULL;
|
||||
Packet *p2 = NULL;
|
||||
Packet *p3 = NULL;
|
||||
Signature *s = NULL;
|
||||
ThreadVars tv;
|
||||
DetectEngineThreadCtx *det_ctx = NULL;
|
||||
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
|
||||
|
||||
memset(&tv, 0, sizeof(ThreadVars));
|
||||
memset(&f, 0, sizeof(Flow));
|
||||
memset(&ssn, 0, sizeof(TcpSession));
|
||||
|
||||
p1 = UTHBuildPacketReal(client_hello, sizeof(client_hello), IPPROTO_TCP,
|
||||
"192.168.1.5", "192.168.1.1", 51251, 443);
|
||||
p2 = UTHBuildPacketReal(server_hello, sizeof(server_hello), IPPROTO_TCP,
|
||||
"192.168.1.1", "192.168.1.5", 443, 51251);
|
||||
p3 = UTHBuildPacketReal(certificate, sizeof(certificate), IPPROTO_TCP,
|
||||
"192.168.1.1", "192.168.1.5", 443, 51251);
|
||||
|
||||
FLOW_INITIALIZE(&f);
|
||||
f.flags |= FLOW_IPV4;
|
||||
f.proto = IPPROTO_TCP;
|
||||
f.protomap = FlowGetProtoMapping(f.proto);
|
||||
f.alproto = ALPROTO_TLS;
|
||||
|
||||
p1->flow = &f;
|
||||
p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
||||
p1->flowflags |= FLOW_PKT_TOSERVER;
|
||||
p1->flowflags |= FLOW_PKT_ESTABLISHED;
|
||||
p1->pcap_cnt = 1;
|
||||
|
||||
p2->flow = &f;
|
||||
p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
||||
p2->flowflags |= FLOW_PKT_TOCLIENT;
|
||||
p2->flowflags |= FLOW_PKT_ESTABLISHED;
|
||||
p2->pcap_cnt = 2;
|
||||
|
||||
p3->flow = &f;
|
||||
p3->flags |= PKT_HAS_FLOW | PKT_STREAM_EST;
|
||||
p3->flowflags |= FLOW_PKT_TOCLIENT;
|
||||
p3->flowflags |= FLOW_PKT_ESTABLISHED;
|
||||
p3->pcap_cnt = 3;
|
||||
|
||||
StreamTcpInitConfig(TRUE);
|
||||
|
||||
DetectEngineCtx *de_ctx = DetectEngineCtxInit();
|
||||
FAIL_IF_NULL(de_ctx);
|
||||
|
||||
de_ctx->mpm_matcher = mpm_default_matcher;
|
||||
de_ctx->flags |= DE_QUIET;
|
||||
|
||||
s = DetectEngineAppendSig(de_ctx, "alert tls any any -> any any "
|
||||
"(msg:\"Test tls_cert_serial\"; "
|
||||
"tls_cert_fingerprint; "
|
||||
"content:\"4a:a3:66:76:82:cb:6b:23:bb:c3:58:47:23:a4:63:a7:78:a4:a1:18\"; "
|
||||
"sid:1;)");
|
||||
FAIL_IF_NULL(s);
|
||||
|
||||
SigGroupBuild(de_ctx);
|
||||
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
|
||||
|
||||
FLOWLOCK_WRLOCK(&f);
|
||||
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS,
|
||||
STREAM_TOSERVER, client_hello,
|
||||
sizeof(client_hello));
|
||||
FLOWLOCK_UNLOCK(&f);
|
||||
|
||||
FAIL_IF(r != 0);
|
||||
|
||||
ssl_state = f.alstate;
|
||||
FAIL_IF_NULL(ssl_state);
|
||||
|
||||
SigMatchSignatures(&tv, de_ctx, det_ctx, p1);
|
||||
|
||||
FAIL_IF(PacketAlertCheck(p1, 1));
|
||||
|
||||
FLOWLOCK_WRLOCK(&f);
|
||||
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
|
||||
server_hello, sizeof(server_hello));
|
||||
FLOWLOCK_UNLOCK(&f);
|
||||
|
||||
FAIL_IF(r != 0);
|
||||
|
||||
SigMatchSignatures(&tv, de_ctx, det_ctx, p2);
|
||||
|
||||
FAIL_IF(PacketAlertCheck(p2, 1));
|
||||
|
||||
FLOWLOCK_WRLOCK(&f);
|
||||
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_TLS, STREAM_TOCLIENT,
|
||||
certificate, sizeof(certificate));
|
||||
FLOWLOCK_UNLOCK(&f);
|
||||
|
||||
FAIL_IF(r != 0);
|
||||
|
||||
SigMatchSignatures(&tv, de_ctx, det_ctx, p3);
|
||||
|
||||
FAIL_IF_NOT(PacketAlertCheck(p3, 1));
|
||||
|
||||
AppLayerParserThreadCtxFree(alp_tctx);
|
||||
DetectEngineThreadCtxDeinit(&tv, det_ctx);
|
||||
SigGroupCleanup(de_ctx);
|
||||
DetectEngineCtxFree(de_ctx);
|
||||
StreamTcpFreeConfig(TRUE);
|
||||
FLOW_DESTROY(&f);
|
||||
UTHFreePacket(p1);
|
||||
UTHFreePacket(p2);
|
||||
UTHFreePacket(p3);
|
||||
|
||||
PASS;
|
||||
}
|
||||
|
||||
#endif /* UNITTESTS */
|
||||
|
||||
static void DetectTlsFingerprintRegisterTests(void)
|
||||
{
|
||||
#ifdef UNITTESTS
|
||||
UtRegisterTest("DetectTlsFingerprintTest01", DetectTlsFingerprintTest01);
|
||||
UtRegisterTest("DetectTlsFingerprintTest02", DetectTlsFingerprintTest02);
|
||||
#endif /* UNITTESTS */
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
/* Copyright (C) 2017 Open Information Security Foundation
|
||||
*
|
||||
* You can copy, redistribute or modify this Program under the terms of
|
||||
* the GNU General Public License version 2 as published by the Free
|
||||
* Software Foundation.
|
||||
*
|
||||
* This program is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* version 2 along with this program; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
|
||||
* 02110-1301, USA.
|
||||
*/
|
||||
|
||||
/**
|
||||
* \file
|
||||
*
|
||||
* \author Mats Klepsland <mats.klepsland@gmail.com>
|
||||
*/
|
||||
|
||||
#ifndef __DETECT_TLS_CERT_FINGERPRINT_H__
|
||||
#define __DETECT_TLS_CERT_FINGERPRINT_H__
|
||||
|
||||
/* prototypes */
|
||||
void DetectTlsFingerprintRegister(void);
|
||||
|
||||
#endif /* __DETECT_TLS_CERT_FINGERPRINT_H__ */
|
||||
Loading…
Reference in New Issue