diff options
Diffstat (limited to 'framework/src/suricata/src/detect-dce-stub-data.c')
| -rw-r--r-- | framework/src/suricata/src/detect-dce-stub-data.c | 1848 |
1 files changed, 0 insertions, 1848 deletions
diff --git a/framework/src/suricata/src/detect-dce-stub-data.c b/framework/src/suricata/src/detect-dce-stub-data.c deleted file mode 100644 index d5e660eb..00000000 --- a/framework/src/suricata/src/detect-dce-stub-data.c +++ /dev/null @@ -1,1848 +0,0 @@ -/* Copyright (C) 2007-2010 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 Anoop Saldanha <anoopsaldanha@gmail.com> - * - * Implements dce_stub_data keyword - */ - -#include "suricata-common.h" - -#include "detect.h" -#include "detect-parse.h" - -#include "detect-engine.h" -#include "detect-engine-mpm.h" -#include "detect-engine-state.h" - -#include "flow.h" -#include "flow-var.h" -#include "flow-util.h" - -#include "app-layer.h" -#include "app-layer-dcerpc.h" -#include "queue.h" -#include "stream-tcp-reassemble.h" -#include "detect-dce-stub-data.h" - -#include "util-debug.h" - -#include "util-unittest.h" -#include "util-unittest-helper.h" - -#include "stream-tcp.h" - -int DetectDceStubDataMatch(ThreadVars *, DetectEngineThreadCtx *, Flow *, uint8_t, - void *, Signature *, SigMatch *); -static int DetectDceStubDataSetup(DetectEngineCtx *, Signature *, char *); - -/** - * \brief Registers the keyword handlers for the "dce_stub_data" keyword. - */ -void DetectDceStubDataRegister(void) -{ - sigmatch_table[DETECT_DCE_STUB_DATA].name = "dce_stub_data"; - sigmatch_table[DETECT_DCE_STUB_DATA].alproto = ALPROTO_DCERPC; - sigmatch_table[DETECT_DCE_STUB_DATA].Match = NULL; - sigmatch_table[DETECT_DCE_STUB_DATA].AppLayerMatch = NULL; - sigmatch_table[DETECT_DCE_STUB_DATA].Setup = DetectDceStubDataSetup; - sigmatch_table[DETECT_DCE_STUB_DATA].Free = NULL; - sigmatch_table[DETECT_DCE_STUB_DATA].RegisterTests = DetectDceStubDataRegisterTests; - - sigmatch_table[DETECT_DCE_STUB_DATA].flags |= SIGMATCH_NOOPT; - sigmatch_table[DETECT_DCE_STUB_DATA].flags |= SIGMATCH_PAYLOAD; - - return; -} - -/** - * \brief Creates a SigMatch for the \"dce_stub_data\" keyword being sent as argument, - * and appends it to the Signature(s). - * - * \param de_ctx Pointer to the detection engine context - * \param s Pointer to signature for the current Signature being parsed - * from the rules - * \param arg Pointer to the string holding the keyword value - * - * \retval 0 on success, -1 on failure - */ - -static int DetectDceStubDataSetup(DetectEngineCtx *de_ctx, Signature *s, char *arg) -{ - if (s->alproto != ALPROTO_UNKNOWN && s->alproto != ALPROTO_DCERPC) { - SCLogError(SC_ERR_CONFLICTING_RULE_KEYWORDS, - "rule contains conflicting keywords."); - goto error; - } - - s->list = DETECT_SM_LIST_DMATCH; - s->alproto = ALPROTO_DCERPC; - s->flags |= SIG_FLAG_APPLAYER; - return 0; - - error: - return -1; -} - -/************************************Unittests*********************************/ - -#ifdef UNITTESTS - -static int DetectDceStubDataTestParse01(void) -{ - Signature s; - int result = 0; - - memset(&s, 0, sizeof(Signature)); - - result = (DetectDceStubDataSetup(NULL, &s, NULL) == 0); - - if (s.sm_lists[DETECT_SM_LIST_AMATCH] == NULL) { - result = 1; - } else { - result = 0; - } - - return result; -} - -/** - * \test Test a valid dce_stub_data entry with bind, bind_ack, request frags. - */ -static int DetectDceStubDataTestParse02(void) -{ - int result = 0; - Signature *s = NULL; - ThreadVars th_v; - Packet *p = NULL; - Flow f; - TcpSession ssn; - DetectEngineThreadCtx *det_ctx = NULL; - DetectEngineCtx *de_ctx = NULL; - DCERPCState *dcerpc_state = NULL; - int r = 0; - - uint8_t dcerpc_bind[] = { - 0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xb8, 0x10, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, - 0x6a, 0x28, 0x19, 0x39, 0x0c, 0xb1, 0xd0, 0x11, - 0x9b, 0xa8, 0x00, 0xc0, 0x4f, 0xd9, 0x2e, 0xf5, - 0x00, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a, - 0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00, - 0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_bindack[] = { - 0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xb8, 0x10, 0xb8, 0x10, 0x26, 0x3d, 0x00, 0x00, - 0x0c, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c, - 0x6c, 0x73, 0x61, 0x73, 0x73, 0x00, 0x00, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11, - 0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60, - 0x02, 0x00, 0x00, 0x00 - }; - - /* todo chop the request frag length and change the - * length related parameters in the frag */ - uint8_t dcerpc_request[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0xec, 0x0c, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xd4, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00, - 0xe1, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xe1, 0x03, 0x00, 0x00, 0x83, 0xc7, 0x0b, 0x47, - 0x47, 0x47, 0x47, 0x81, 0x37, 0x22, 0xa5, 0x9b, - 0x4a, 0x75, 0xf4, 0xa3, 0x61, 0xd3, 0xbe, 0xdd, - 0x5a, 0xfb, 0x20, 0x1e, 0xfc, 0x10, 0x8e, 0x0f, - 0xa5, 0x9f, 0x4a, 0x22, 0x20, 0x9b, 0xa8, 0xd5, - 0xc4, 0xff, 0xc1, 0x3f, 0xbd, 0x9b, 0x4a, 0x22, - 0x2e, 0xc0, 0x7a, 0xa9, 0xfe, 0x97, 0xc9, 0xe1, - 0xa9, 0xf3, 0x2f, 0x22, 0xc9, 0x9b, 0x22, 0x50, - 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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x01, 0x02, 0x03, 0x04 - }; - - uint32_t dcerpc_bind_len = sizeof(dcerpc_bind); - uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack); - uint32_t dcerpc_request_len = sizeof(dcerpc_request); - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_DCERPC; - - StreamTcpInitConfig(TRUE); - - de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx, - "alert tcp any any -> any any " - "(msg:\"DCERPC\"; " - "dce_stub_data; content:\"|42 42 42 42|\";" - "sid:1;)"); - if (s == NULL) - goto end; - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START, - dcerpc_bind, dcerpc_bind_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - dcerpc_state = f.alstate; - if (dcerpc_state == NULL) { - SCLogDebug("no dcerpc state: "); - goto end; - } - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - /* we shouldn't have any stub data */ - if (PacketAlertCheck(p, 1)) - goto end; - - /* do detect */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_bindack, - dcerpc_bindack_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - /* we shouldn't have any stub data */ - if (PacketAlertCheck(p, 1)) - goto end; - - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_EOF, - dcerpc_request, dcerpc_request_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - /* we should have the stub data since we previously parsed a request frag */ - if (!PacketAlertCheck(p, 1)) - goto end; - - result = 1; - - end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - SigGroupCleanup(de_ctx); - SigCleanSignatures(de_ctx); - - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - DetectEngineCtxFree(de_ctx); - - StreamTcpFreeConfig(TRUE); - FLOW_DESTROY(&f); - - UTHFreePackets(&p, 1); - return result; -} - -/** - * \test Test a valid dce_stub_data with just a request frag. - */ -static int DetectDceStubDataTestParse03(void) -{ - int result = 0; - Signature *s = NULL; - ThreadVars th_v; - Packet *p = NULL; - Flow f; - TcpSession ssn; - DetectEngineThreadCtx *det_ctx = NULL; - DetectEngineCtx *de_ctx = NULL; - DCERPCState *dcerpc_state = NULL; - int r = 0; - - /* todo chop the request frag length and change the - * length related parameters in the frag */ - uint8_t dcerpc_request[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0xec, 0x0c, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xd4, 0x0c, 0x00, 0x00, 0x00, 0x00, 0x09, 0x00, - 0xe1, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0xe1, 0x03, 0x00, 0x00, 0x83, 0xc7, 0x0b, 0x47, - 0x47, 0x47, 0x47, 0x81, 0x37, 0x22, 0xa5, 0x9b, - 0x4a, 0x75, 0xf4, 0xa3, 0x61, 0xd3, 0xbe, 0xdd, - 0x5a, 0xfb, 0x20, 0x1e, 0xfc, 0x10, 0x8e, 0x0f, - 0xa5, 0x9f, 0x4a, 0x22, 0x20, 0x9b, 0xa8, 0xd5, - 0xc4, 0xff, 0xc1, 0x3f, 0xbd, 0x9b, 0x4a, 0x22, - 0x2e, 0xc0, 0x7a, 0xa9, 0xfe, 0x97, 0xc9, 0xe1, - 0xa9, 0xf3, 0x2f, 0x22, 0xc9, 0x9b, 0x22, 0x50, - 0xa5, 0xf5, 0x4a, 0x4a, 0xce, 0x9b, 0x2f, 0x22, - 0x2e, 0x6f, 0xc1, 0xe1, 0xf3, 0xa8, 0x83, 0xa2, - 0x64, 0x98, 0xc1, 0x62, 0xa1, 0xa0, 0x89, 0x56, - 0xa8, 0x1b, 0x8b, 0x2b, 0x2e, 0xe3, 0x7a, 0xd1, - 0x03, 0xef, 0x58, 0x7c, 0x4e, 0x7d, 0x14, 0x76, - 0xfa, 0xc3, 0x7f, 0x02, 0xa5, 0xbb, 0x4a, 0x89, - 0x47, 0x6c, 0x12, 0xc9, 0x70, 0x18, 0x8e, 0x3a, - 0x2e, 0xcb, 0x52, 0xa9, 0x67, 0x98, 0x0a, 0x1e, - 0x2e, 0xc3, 0x32, 0x21, 0x7f, 0x10, 0x31, 0x3e, - 0xa6, 0x61, 0xc1, 0x61, 0x85, 0x98, 0x88, 0xa9, - 0xee, 0x83, 0x22, 0x51, 0xd6, 0xda, 0x4a, 0x4a, - 0xc1, 0xff, 0x38, 0x47, 0xcd, 0xe9, 0x25, 0x41, - 0xe4, 0xf3, 0x0d, 0x47, 0xd1, 0xcb, 0xc1, 0xd6, - 0x1e, 0x95, 0x4a, 0x22, 0xa5, 0x73, 0x08, 0x22, - 0xa5, 0x9b, 0xc9, 0xe6, 0xb5, 0xcd, 0x22, 0x43, - 0xd7, 0xe2, 0x0b, 0x4a, 0xe9, 0xf2, 0x28, 0x50, - 0xcd, 0xd7, 0x25, 0x43, 0xc1, 0x10, 0xbe, 0x99, - 0xa9, 0x9b, 0x4a, 0x22, 0x4d, 0xb8, 0x4a, 0x22, - 0xa5, 0x18, 0x8e, 0x2e, 0xf3, 0xc9, 0x22, 0x4e, - 0xc9, 0x9b, 0x4a, 0x4a, 0x96, 0xa9, 0x64, 0x46, - 0xcd, 0xec, 0x39, 0x10, 0xfa, 0xcf, 0xb5, 0x76, - 0x81, 0x8f, 0xc9, 0xe6, 0xa9, 0x10, 0x82, 0x7c, - 0xff, 0xc4, 0xa1, 0x0a, 0xf5, 0xcc, 0x1b, 0x74, - 0xf4, 0x10, 0x81, 0xa9, 0x9d, 0x98, 0xb0, 0xa1, - 0x65, 0x9f, 0xb9, 0x84, 0xd1, 0x9f, 0x13, 0x7c, - 0x47, 0x76, 0x12, 0x7c, 0xfc, 0x10, 0xbb, 0x09, - 0x55, 0x5a, 0xac, 0x20, 0xfa, 0x10, 0x7e, 0x15, - 0xa6, 0x69, 0x12, 0xe1, 0xf7, 0xca, 0x22, 0x57, - 0xd5, 0x9b, 0x4a, 0x4a, 0xd1, 0xfa, 0x38, 0x56, - 0xcd, 0xcc, 0x19, 0x63, 0xf6, 0xf3, 0x2f, 0x56, - 0xa5, 0x9b, 0x22, 0x51, 0xca, 0xf8, 0x21, 0x48, - 0xa5, 0xf3, 0x28, 0x4b, 0xcb, 0xff, 0x22, 0x47, - 0xcb, 0x9b, 0x4a, 0x4a, 0xc9, 0xf2, 0x39, 0x56, - 0xcd, 0xeb, 0x3e, 0x22, 0xa5, 0xf3, 0x2b, 0x41, - 0xc6, 0xfe, 0xc1, 0xfe, 0xf6, 0xca, 0xc9, 0xe1, - 0xad, 0xc8, 0x1b, 0xa1, 0x66, 0x93, 0x19, 0x73, - 0x26, 0x58, 0x42, 0x71, 0xf4, 0x18, 0x89, 0x2a, - 0xf6, 0xca, 0xb5, 0xf5, 0x2c, 0xd8, 0x42, 0xdd, - 0x72, 0x12, 0x09, 0x26, 0x5a, 0x4c, 0xc3, 0x21, - 0x5a, 0x4c, 0xc3, 0x61, 0x59, 0x64, 0x9d, 0xab, - 0xe6, 0x63, 0xc9, 0xc9, 0xad, 0x10, 0xa9, 0xa3, - 0x49, 0x0b, 0x4b, 0x22, 0xa5, 0xcf, 0x22, 0x23, - 0xa4, 0x9b, 0x4a, 0xdd, 0x31, 0xbf, 0xe2, 0x23, - 0xa5, 0x9b, 0xcb, 0xe6, 0x35, 0x9a, 0x4a, 0x22, - 0xcf, 0x9d, 0x20, 0x23, 0xcf, 0x99, 0xb5, 0x76, - 0x81, 0x83, 0x20, 0x22, 0xcf, 0x9b, 0x20, 0x22, - 0xcd, 0x99, 0x4a, 0xe6, 0x96, 0x10, 0x96, 0x71, - 0xf6, 0xcb, 0x20, 0x23, 0xf5, 0xf1, 0x5a, 0x71, - 0xf5, 0x64, 0x1e, 0x06, 0x9d, 0x64, 0x1e, 0x06, - 0x8d, 0x5c, 0x49, 0x32, 0xa5, 0x9b, 0x4a, 0xdd, - 0xf1, 0xbf, 0x56, 0xa1, 0x61, 0xbf, 0x13, 0x78, - 0xf4, 0xc9, 0x1a, 0x11, 0x77, 0xc9, 0x22, 0x51, - 0xc0, 0xf5, 0x2e, 0xa9, 0x61, 0xc9, 0x22, 0x50, - 0xc0, 0xf8, 0x3c, 0xa9, 0x71, 0xc9, 0x1b, 0x72, - 0xf4, 0x64, 0x9d, 0xb1, 0x5a, 0x4c, 0xdf, 0xa1, - 0x61, 0x8b, 0x12, 0x78, 0xfc, 0xc8, 0x1f, 0x72, - 0x2e, 0x77, 0x1a, 0x42, 0xcf, 0x9f, 0x10, 0x72, - 0x2e, 0x47, 0xa2, 0x63, 0xa5, 0x9b, 0x4a, 0x48, - 0xa5, 0xf3, 0x26, 0x4e, 0xca, 0xf8, 0x22, 0x57, - 0xc4, 0xf7, 0x0b, 0x4a, 0xf3, 0xf2, 0x38, 0x56, - 0xf1, 0xcd, 0xb5, 0xf5, 0x26, 0x5f, 0x5a, 0x78, - 0xf7, 0xf1, 0x0a, 0x4a, 0xa5, 0x8b, 0x4a, 0x22, - 0xf7, 0xf1, 0x4a, 0xdd, 0x75, 0x12, 0x0e, 0x06, - 0x81, 0xc1, 0xd9, 0xca, 0xb5, 0x9b, 0x4a, 0x22, - 0xc4, 0xc0, 0xb5, 0xc1, 0xc5, 0xa8, 0x8a, 0x92, - 0xa1, 0x73, 0x5c, 0x22, 0xa5, 0x9b, 0x2b, 0xe1, - 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0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, 0x42, - 0x01, 0x02, 0x03, 0x04 - }; - - uint32_t dcerpc_request_len = sizeof(dcerpc_request); - - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_DCERPC; - - StreamTcpInitConfig(TRUE); - - de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx, - "alert tcp any any -> any any " - "(msg:\"DCERPC\"; " - "dce_stub_data; content:\"|42 42 42 42|\";" - "sid:1;)"); - if (s == NULL) - goto end; - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START, - dcerpc_request, dcerpc_request_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - dcerpc_state = f.alstate; - if (dcerpc_state == NULL) { - SCLogDebug("no dcerpc state: "); - goto end; - } - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (!PacketAlertCheck(p, 1)) - goto end; - - result = 1; - - end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - SigGroupCleanup(de_ctx); - SigCleanSignatures(de_ctx); - - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - DetectEngineCtxFree(de_ctx); - - StreamTcpFreeConfig(TRUE); - FLOW_DESTROY(&f); - - UTHFreePackets(&p, 1); - return result; -} - -static int DetectDceStubDataTestParse04(void) -{ - int result = 0; - Signature *s = NULL; - ThreadVars th_v; - Packet *p = NULL; - Flow f; - TcpSession ssn; - DetectEngineThreadCtx *det_ctx = NULL; - DetectEngineCtx *de_ctx = NULL; - DCERPCState *dcerpc_state = NULL; - int r = 0; - - uint8_t dcerpc_bind[] = { - 0x05, 0x00, 0x0b, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x48, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xb8, 0x10, 0xb8, 0x10, 0x00, 0x00, 0x00, 0x00, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, - 0x01, 0xd0, 0x8c, 0x33, 0x44, 0x22, 0xf1, 0x31, - 0xaa, 0xaa, 0x90, 0x00, 0x38, 0x00, 0x10, 0x03, - 0x01, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a, - 0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00, - 0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_bindack[] = { - 0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0xb8, 0x10, 0xb8, 0x10, 0x65, 0x8e, 0x00, 0x00, - 0x0d, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c, - 0x77, 0x69, 0x6e, 0x72, 0x65, 0x67, 0x00, 0x6d, - 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x04, 0x5d, 0x88, 0x8a, 0xeb, 0x1c, 0xc9, 0x11, - 0x9f, 0xe8, 0x08, 0x00, 0x2b, 0x10, 0x48, 0x60, - 0x02, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_request1[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, - 0x2c, 0xfd, 0xb5, 0x00, 0x40, 0xaa, 0x01, 0x00, - 0x00, 0x00, 0x00, 0x02, - }; - - uint8_t dcerpc_response1[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x30, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_request2[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0xa4, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, - 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x5c, 0x00, 0x5c, 0x00, - 0xa8, 0xb9, 0x14, 0x00, 0x2e, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x2e, 0x00, 0x00, 0x00, - 0x53, 0x00, 0x4f, 0x00, 0x46, 0x00, 0x54, 0x00, - 0x57, 0x00, 0x41, 0x00, 0x52, 0x00, 0x45, 0x00, - 0x5c, 0x00, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, - 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, - 0x66, 0x00, 0x74, 0x00, 0x5c, 0x00, 0x57, 0x00, - 0x69, 0x00, 0x6e, 0x00, 0x64, 0x00, 0x6f, 0x00, - 0x77, 0x00, 0x73, 0x00, 0x5c, 0x00, 0x43, 0x00, - 0x75, 0x00, 0x72, 0x00, 0x72, 0x00, 0x65, 0x00, - 0x6e, 0x00, 0x74, 0x00, 0x56, 0x00, 0x65, 0x00, - 0x72, 0x00, 0x73, 0x00, 0x69, 0x00, 0x6f, 0x00, - 0x6e, 0x00, 0x5c, 0x00, 0x52, 0x00, 0x75, 0x00, - 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_response2[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x30, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_request3[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x70, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, - 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x0c, 0x00, 0x0c, 0x00, - 0x98, 0xda, 0x14, 0x00, 0x06, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, - 0x4f, 0x00, 0x73, 0x00, 0x61, 0x00, 0x33, 0x00, - 0x32, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x4e, 0x00, 0x54, 0x00, - 0x4f, 0x00, 0x53, 0x00, 0x41, 0x00, 0x33, 0x00, - 0x32, 0x00, 0x2e, 0x00, 0x45, 0x00, 0x58, 0x00, - 0x45, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_response3[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x1c, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, - 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - }; - - uint32_t dcerpc_bind_len = sizeof(dcerpc_bind); - uint32_t dcerpc_bindack_len = sizeof(dcerpc_bindack); - - uint32_t dcerpc_request1_len = sizeof(dcerpc_request1); - uint32_t dcerpc_response1_len = sizeof(dcerpc_response1); - - uint32_t dcerpc_request2_len = sizeof(dcerpc_request2); - uint32_t dcerpc_response2_len = sizeof(dcerpc_response2); - - uint32_t dcerpc_request3_len = sizeof(dcerpc_request3); - uint32_t dcerpc_response3_len = sizeof(dcerpc_response3); - - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_DCERPC; - - StreamTcpInitConfig(TRUE); - - de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - - s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any " - "(msg:\"DCERPC\"; dce_stub_data; content:\"|00 02|\"; sid:1;)"); - if (s == NULL) - goto end; - s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any " - "(msg:\"DCERPC\"; dce_stub_data; content:\"|00 75|\"; sid:2;)"); - if (s == NULL) - goto end; - s = DetectEngineAppendSig(de_ctx, "alert tcp any any -> any any " - "(msg:\"DCERPC\"; dce_stub_data; content:\"|00 18|\"; sid:3;)"); - if (s == NULL) - goto end; - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START, - dcerpc_bind, dcerpc_bind_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - dcerpc_state = f.alstate; - if (dcerpc_state == NULL) { - SCLogDebug("no dcerpc state: "); - goto end; - } - - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_bindack, - dcerpc_bindack_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - /* request1 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request1, - dcerpc_request1_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (!PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* response1 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_response1, - dcerpc_response1_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* request2 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request2, - dcerpc_request2_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || !PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* response2 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, dcerpc_response2, - dcerpc_response2_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* request3 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, dcerpc_request3, - dcerpc_request3_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || !PacketAlertCheck(p, 3)) - goto end; - - /* response3 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT | STREAM_EOF, - dcerpc_response3, dcerpc_response3_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - result = 1; - - end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - SigGroupCleanup(de_ctx); - SigCleanSignatures(de_ctx); - - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - DetectEngineCtxFree(de_ctx); - - StreamTcpFreeConfig(TRUE); - FLOW_DESTROY(&f); - - UTHFreePackets(&p, 1); - return result; -} - -static int DetectDceStubDataTestParse05(void) -{ - int result = 0; - Signature *s = NULL; - ThreadVars th_v; - Packet *p = NULL; - Flow f; - TcpSession ssn; - DetectEngineThreadCtx *det_ctx = NULL; - DetectEngineCtx *de_ctx = NULL; - DCERPCState *dcerpc_state = NULL; - int r = 0; - - uint8_t dcerpc_request1[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x24, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x0c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, - 0x2c, 0xfd, 0xb5, 0x00, 0x40, 0xaa, 0x01, 0x00, - 0x00, 0x00, 0x00, 0x02, - }; - - uint8_t dcerpc_response1[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x30, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_request2[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0xa4, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, - 0x8c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf6, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x5c, 0x00, 0x5c, 0x00, - 0xa8, 0xb9, 0x14, 0x00, 0x2e, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x2e, 0x00, 0x00, 0x00, - 0x53, 0x00, 0x4f, 0x00, 0x46, 0x00, 0x54, 0x00, - 0x57, 0x00, 0x41, 0x00, 0x52, 0x00, 0x45, 0x00, - 0x5c, 0x00, 0x4d, 0x00, 0x69, 0x00, 0x63, 0x00, - 0x72, 0x00, 0x6f, 0x00, 0x73, 0x00, 0x6f, 0x00, - 0x66, 0x00, 0x74, 0x00, 0x5c, 0x00, 0x57, 0x00, - 0x69, 0x00, 0x6e, 0x00, 0x64, 0x00, 0x6f, 0x00, - 0x77, 0x00, 0x73, 0x00, 0x5c, 0x00, 0x43, 0x00, - 0x75, 0x00, 0x72, 0x00, 0x72, 0x00, 0x65, 0x00, - 0x6e, 0x00, 0x74, 0x00, 0x56, 0x00, 0x65, 0x00, - 0x72, 0x00, 0x73, 0x00, 0x69, 0x00, 0x6f, 0x00, - 0x6e, 0x00, 0x5c, 0x00, 0x52, 0x00, 0x75, 0x00, - 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x03, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_response2[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x30, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x00, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_request3[] = { - 0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x70, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, - 0x58, 0x00, 0x00, 0x00, 0x00, 0x00, 0x16, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xf7, 0x72, 0x28, 0x9c, - 0xf0, 0x57, 0xd8, 0x11, 0xb0, 0x05, 0x00, 0x0c, - 0x29, 0x87, 0xea, 0xe9, 0x0c, 0x00, 0x0c, 0x00, - 0x98, 0xda, 0x14, 0x00, 0x06, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, - 0x4f, 0x00, 0x73, 0x00, 0x61, 0x00, 0x33, 0x00, - 0x32, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, - 0x18, 0x00, 0x00, 0x00, 0x4e, 0x00, 0x54, 0x00, - 0x4f, 0x00, 0x53, 0x00, 0x41, 0x00, 0x33, 0x00, - 0x32, 0x00, 0x2e, 0x00, 0x45, 0x00, 0x58, 0x00, - 0x45, 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, - }; - - uint8_t dcerpc_response3[] = { - 0x05, 0x00, 0x02, 0x03, 0x10, 0x00, 0x00, 0x00, - 0x1c, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, - 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, - }; - - uint32_t dcerpc_request1_len = sizeof(dcerpc_request1); - uint32_t dcerpc_response1_len = sizeof(dcerpc_response1); - - uint32_t dcerpc_request2_len = sizeof(dcerpc_request2); - uint32_t dcerpc_response2_len = sizeof(dcerpc_response2); - - uint32_t dcerpc_request3_len = sizeof(dcerpc_request3); - uint32_t dcerpc_response3_len = sizeof(dcerpc_response3); - - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - p = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_DCERPC; - - StreamTcpInitConfig(TRUE); - - de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx, - "alert tcp any any -> any any " - "(msg:\"DCERPC\"; " - "dce_stub_data; content:\"|00 02|\"; " - "sid:1;)"); - if (s == NULL) - goto end; - s = de_ctx->sig_list->next = SigInit(de_ctx, - "alert tcp any any -> any any " - "(msg:\"DCERPC\"; " - "dce_stub_data; content:\"|00 75|\"; " - "sid:2;)"); - if (s == NULL) - goto end; - s = de_ctx->sig_list->next->next = SigInit(de_ctx, - "alert tcp any any -> any any " - "(msg:\"DCERPC\"; " - "dce_stub_data; content:\"|00 18|\"; " - "sid:3;)"); - if (s == NULL) - goto end; - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - /* request1 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER | STREAM_START, - dcerpc_request1, dcerpc_request1_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - dcerpc_state = f.alstate; - if (dcerpc_state == NULL) { - SCLogDebug("no dcerpc state: "); - goto end; - } - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (!PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* response1 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, - dcerpc_response1, dcerpc_response1_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* request2 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, - dcerpc_request2, dcerpc_request2_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || !PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* response2 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT, - dcerpc_response2, dcerpc_response2_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || PacketAlertCheck(p, 3)) - goto end; - - /* request3 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOSERVER, - dcerpc_request3, dcerpc_request3_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOCLIENT; - p->flowflags |= FLOW_PKT_TOSERVER; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1) || PacketAlertCheck(p, 2) || !PacketAlertCheck(p, 3)) - goto end; - - /* response3 */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_DCERPC, STREAM_TOCLIENT | STREAM_EOF, - dcerpc_response3, dcerpc_response3_len); - if (r != 0) { - SCLogDebug("AppLayerParse for dcerpc failed. Returned %" PRId32, r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - p->flowflags &=~ FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_TOCLIENT; - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (PacketAlertCheck(p, 1)) - goto end; - - result = 1; - - end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - - SigGroupCleanup(de_ctx); - SigCleanSignatures(de_ctx); - - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - DetectEngineCtxFree(de_ctx); - - StreamTcpFreeConfig(TRUE); - FLOW_DESTROY(&f); - - UTHFreePackets(&p, 1); - return result; -} - - -#endif - -void DetectDceStubDataRegisterTests(void) -{ -#ifdef UNITTESTS - UtRegisterTest("DetectDceStubDataTestParse01", DetectDceStubDataTestParse01, 1); - UtRegisterTest("DetectDceStubDataTestParse02", DetectDceStubDataTestParse02, 1); - UtRegisterTest("DetectDceStubDataTestParse03", DetectDceStubDataTestParse03, 1); - UtRegisterTest("DetectDceStubDataTestParse04", DetectDceStubDataTestParse04, 1); - UtRegisterTest("DetectDceStubDataTestParse05", DetectDceStubDataTestParse05, 1); -#endif - - return; -} |