diff options
Diffstat (limited to 'framework/src/suricata/src/detect-http-cookie.c')
| -rw-r--r-- | framework/src/suricata/src/detect-http-cookie.c | 1277 |
1 files changed, 0 insertions, 1277 deletions
diff --git a/framework/src/suricata/src/detect-http-cookie.c b/framework/src/suricata/src/detect-http-cookie.c deleted file mode 100644 index 94f76765..00000000 --- a/framework/src/suricata/src/detect-http-cookie.c +++ /dev/null @@ -1,1277 +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. - */ - -/** - * \ingroup httplayer - * - * @{ - */ - - -/** - * \file - * - * \author Gurvinder Singh <gurvindersinghdahiya@gmail.com> - * - * Implements the http_cookie keyword - */ - -#include "suricata-common.h" -#include "threads.h" -#include "debug.h" -#include "decode.h" -#include "detect.h" - -#include "detect-parse.h" -#include "detect-engine.h" -#include "detect-engine-mpm.h" -#include "detect-content.h" -#include "detect-pcre.h" - -#include "flow.h" -#include "flow-var.h" -#include "flow-util.h" - -#include "util-debug.h" -#include "util-error.h" -#include "util-unittest.h" -#include "util-unittest-helper.h" -#include "util-spm.h" -#include "util-print.h" - -#include "app-layer.h" -#include "app-layer-parser.h" - -#include "app-layer-htp.h" -#include "detect-http-cookie.h" -#include "stream-tcp.h" - -static int DetectHttpCookieSetup (DetectEngineCtx *, Signature *, char *); -void DetectHttpCookieRegisterTests(void); -void DetectHttpCookieFree(void *); - -/** - * \brief Registration function for keyword: http_cookie - */ -void DetectHttpCookieRegister(void) -{ - sigmatch_table[DETECT_AL_HTTP_COOKIE].name = "http_cookie"; - sigmatch_table[DETECT_AL_HTTP_COOKIE].desc = "content modifier to match only on the HTTP cookie-buffer"; - sigmatch_table[DETECT_AL_HTTP_COOKIE].url = "https://redmine.openinfosecfoundation.org/projects/suricata/wiki/HTTP-keywords#http_cookie"; - sigmatch_table[DETECT_AL_HTTP_COOKIE].Match = NULL; - sigmatch_table[DETECT_AL_HTTP_COOKIE].AppLayerMatch = NULL; - sigmatch_table[DETECT_AL_HTTP_COOKIE].alproto = ALPROTO_HTTP; - sigmatch_table[DETECT_AL_HTTP_COOKIE].Setup = DetectHttpCookieSetup; - sigmatch_table[DETECT_AL_HTTP_COOKIE].Free = DetectHttpCookieFree; - sigmatch_table[DETECT_AL_HTTP_COOKIE].RegisterTests = DetectHttpCookieRegisterTests; - - sigmatch_table[DETECT_AL_HTTP_COOKIE].flags |= SIGMATCH_NOOPT; - sigmatch_table[DETECT_AL_HTTP_COOKIE].flags |= SIGMATCH_PAYLOAD; -} - -/** - * \brief this function clears the memory of http_cookie modifier keyword - * - * \param ptr Pointer to the Detection Cookie data - */ -void DetectHttpCookieFree(void *ptr) -{ - DetectContentData *hcd = (DetectContentData *)ptr; - if (hcd == NULL) - return; - if (hcd->content != NULL) - SCFree(hcd->content); - SCFree(hcd); -} - -/** - * \brief this function setups the http_cookie modifier keyword used in the rule - * - * \param de_ctx Pointer to the Detection Engine Context - * \param s Pointer to the Signature to which the current keyword belongs - * \param str Should hold an empty string always - * - * \retval 0 On success - * \retval -1 On failure - */ - -static int DetectHttpCookieSetup(DetectEngineCtx *de_ctx, Signature *s, char *str) -{ - return DetectEngineContentModifierBufferSetup(de_ctx, s, str, - DETECT_AL_HTTP_COOKIE, - DETECT_SM_LIST_HCDMATCH, - ALPROTO_HTTP, - NULL); -} - -/******************************** UNITESTS **********************************/ - -#ifdef UNITTESTS - -#include "stream-tcp-reassemble.h" - -/** - * \test Checks if a http_cookie is registered in a Signature, if content is not - * specified in the signature - */ -int DetectHttpCookieTest01(void) -{ - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; http_cookie;sid:1;)"); - if (de_ctx->sig_list == NULL) - result = 1; - -end: - if (de_ctx != NULL) - DetectEngineCtxFree(de_ctx); - return result; -} - -/** - * \test Checks if a http_cookie is registered in a Signature, if some parameter - * is specified with http_cookie in the signature - */ -int DetectHttpCookieTest02(void) -{ - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; content:\"me\"; " - "http_cookie:woo; sid:1;)"); - if (de_ctx->sig_list == NULL) - result = 1; - -end: - if (de_ctx != NULL) - DetectEngineCtxFree(de_ctx); - return result; -} - -/** - * \test Checks if a http_cookie is registered in a Signature - */ -int DetectHttpCookieTest03(void) -{ - SigMatch *sm = NULL; - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; content:\"one\"; " - "http_cookie; content:\"two\"; http_cookie; " - "content:\"two\"; http_cookie; " - "sid:1;)"); - if (de_ctx->sig_list == NULL) { - printf("sig parse failed: "); - goto end; - } - - result = 0; - sm = de_ctx->sig_list->sm_lists[DETECT_SM_LIST_HCDMATCH]; - if (sm == NULL) { - printf("no sigmatch(es): "); - goto end; - } - - while (sm != NULL) { - if (sm->type == DETECT_CONTENT) { - result = 1; - } else { - printf("expected DETECT_CONTENT for http_cookie, got %d: ", sm->type); - goto end; - } - sm = sm->next; - } - -end: - if (de_ctx != NULL) - DetectEngineCtxFree(de_ctx); - return result; -} - -/** - * \test Checks if a http_cookie is registered in a Signature, when fast_pattern - * is also specified in the signature (now it should) - */ -int DetectHttpCookieTest04(void) -{ - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; content:\"one\"; " - "fast_pattern; http_cookie; sid:1;)"); - if (de_ctx->sig_list != NULL) - result = 1; - -end: - if (de_ctx != NULL) SigCleanSignatures(de_ctx); - if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); - return result; -} - -/** - * \test Checks if a http_cookie is registered in a Signature, when rawbytes is - * also specified in the signature - */ -int DetectHttpCookieTest05(void) -{ - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; content:\"one\"; " - "rawbytes; http_cookie; sid:1;)"); - if (de_ctx->sig_list == NULL) - result = 1; - - end: - if (de_ctx != NULL) SigCleanSignatures(de_ctx); - if (de_ctx != NULL) DetectEngineCtxFree(de_ctx); - return result; -} - -/** - * \test Checks if a http_cookie is registered in a Signature, when rawbytes is - * also specified in the signature - */ -int DetectHttpCookieTest06(void) -{ - DetectEngineCtx *de_ctx = NULL; - int result = 0; - - if ( (de_ctx = DetectEngineCtxInit()) == NULL) - goto end; - - de_ctx->flags |= DE_QUIET; - de_ctx->sig_list = SigInit(de_ctx, "alert tcp any any -> any any " - "(msg:\"Testing http_cookie\"; content:\"one\"; " - "http_cookie; uricontent:\"abc\"; sid:1;)"); - if (de_ctx->sig_list == NULL) - goto end; - - Signature *s = de_ctx->sig_list; - - BUG_ON(s->sm_lists[DETECT_SM_LIST_HCDMATCH] == NULL); - - if (s->sm_lists[DETECT_SM_LIST_HCDMATCH]->type != DETECT_CONTENT) - goto end; - - if (s->sm_lists[DETECT_SM_LIST_UMATCH] == NULL) { - printf("expected another SigMatch, got NULL: "); - goto end; - } - - if (s->sm_lists[DETECT_SM_LIST_UMATCH]->type != DETECT_CONTENT) { - goto end; - } - - result = 1; -end: - if (de_ctx != NULL) { - DetectEngineCtxFree(de_ctx); - } - return result; -} - -/** \test Check the signature working to alert when http_cookie is matched . */ -static int DetectHttpCookieSigTest01(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\nCookie:" - " hellocatchme\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:\"me\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - s->next = SigInit(de_ctx,"alert http any any -> any any (msg:\"HTTP " - "cookie\"; content:\"go\"; http_cookie; sid:2;)"); - if (s->next == NULL) { - goto end; - } - - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (!(PacketAlertCheck(p, 1))) { - printf("sid 1 didn't match but should have: "); - goto end; - } - if (PacketAlertCheck(p, 2)) { - printf("sid 2 matched but shouldn't: "); - goto end; - } - - result = 1; -end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest02(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&p, 0, sizeof(p)); - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:\"me\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* 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); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest03(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n" - "Cookie: dummy\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:\"boo\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* 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); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest04(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n" - "Cookie: dummy\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&p, 0, sizeof(p)); - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:!\"boo\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* 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); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest05(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n" - "Cookie: DuMmY\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&p, 0, sizeof(p)); - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:\"dummy\"; nocase; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* 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); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest06(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n" - "Cookie: DuMmY\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&p, 0, sizeof(p)); - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:\"dummy\"; " - "http_cookie; nocase; sid:1;)"); - if (s == NULL) { - printf("sig parse failed: "); - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - goto end; - } - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p); - - if (!PacketAlertCheck(p, 1)) { - printf("sig 1 failed to match: "); - goto end; - } - - result = 1; -end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** \test Check the signature working to alert when http_cookie is not present */ -static int DetectHttpCookieSigTest07(void) -{ - int result = 0; - Flow f; - uint8_t httpbuf1[] = "POST / HTTP/1.0\r\nUser-Agent: Mozilla/1.0\r\n" - "Cookie: dummy\r\n\r\n"; - uint32_t httplen1 = sizeof(httpbuf1) - 1; /* minus the \0 */ - TcpSession ssn; - Packet *p = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - 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; - f.flags |= FLOW_IPV4; - - p->flow = &f; - p->flowflags |= FLOW_PKT_TOSERVER; - p->flowflags |= FLOW_PKT_ESTABLISHED; - p->flags |= PKT_HAS_FLOW|PKT_STREAM_EST; - f.alproto = ALPROTO_HTTP; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any (msg:" - "\"HTTP cookie\"; content:!\"dummy\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, httpbuf1, httplen1); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - result = 0; - goto end; - } - - /* 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); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p, 1); - return result; -} - -/** - * \test Check the signature working to alert against set-cookie - */ -static int DetectHttpCookieSigTest08(void) -{ - int result = 0; - Flow f; - - uint8_t httpbuf_request[] = - "GET / HTTP/1.1\r\n" - "User-Agent: Mozilla/1.0\r\n" - "\r\n"; - uint32_t httpbuf_request_len = sizeof(httpbuf_request) - 1; /* minus the \0 */ - - uint8_t httpbuf_response[] = - "HTTP/1.1 200 OK\r\n" - "Set-Cookie: response_user_agent\r\n" - "\r\n"; - uint32_t httpbuf_response_len = sizeof(httpbuf_response) - 1; /* minus the \0 */ - - TcpSession ssn; - Packet *p1 = NULL, *p2 = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - f.flags |= FLOW_IPV4; - f.alproto = ALPROTO_HTTP; - - p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - p1->flow = &f; - p1->flowflags |= FLOW_PKT_TOSERVER; - p1->flowflags |= FLOW_PKT_ESTABLISHED; - p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST; - - p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - p2->flow = &f; - p2->flowflags |= FLOW_PKT_TOCLIENT; - p2->flowflags |= FLOW_PKT_ESTABLISHED; - p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any " - "(flow:to_client; content:\"response_user_agent\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - /* request */ - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, - httpbuf_request, httpbuf_request_len); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - goto end; - } - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); - if (PacketAlertCheck(p1, 1)) { - goto end; - } - - /* response */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT, - httpbuf_response, httpbuf_response_len); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); - if (!PacketAlertCheck(p2, 1)) { - goto end; - } - - result = 1; - -end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p1, 1); - UTHFreePackets(&p2, 1); - return result; -} - -/** - * \test Check the signature working to alert against cookie/set-cookie - */ -static int DetectHttpCookieSigTest09(void) -{ - int result = 0; - Flow f; - - uint8_t httpbuf_request[] = - "GET / HTTP/1.1\r\n" - "Cookie: request_user_agent\r\n" - "User-Agent: Mozilla/1.0\r\n" - "\r\n"; - uint32_t httpbuf_request_len = sizeof(httpbuf_request) - 1; /* minus the \0 */ - - uint8_t httpbuf_response[] = - "HTTP/1.1 200 OK\r\n" - "Set-Cookie: response_user_agent\r\n" - "\r\n"; - uint32_t httpbuf_response_len = sizeof(httpbuf_response) - 1; /* minus the \0 */ - - TcpSession ssn; - Packet *p1 = NULL, *p2 = NULL; - Signature *s = NULL; - ThreadVars th_v; - DetectEngineThreadCtx *det_ctx = NULL; - HtpState *http_state = NULL; - AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc(); - - memset(&th_v, 0, sizeof(th_v)); - memset(&f, 0, sizeof(f)); - memset(&ssn, 0, sizeof(ssn)); - - FLOW_INITIALIZE(&f); - f.protoctx = (void *)&ssn; - f.proto = IPPROTO_TCP; - f.flags |= FLOW_IPV4; - f.alproto = ALPROTO_HTTP; - - p1 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - p1->flow = &f; - p1->flowflags |= FLOW_PKT_TOSERVER; - p1->flowflags |= FLOW_PKT_ESTABLISHED; - p1->flags |= PKT_HAS_FLOW | PKT_STREAM_EST; - - p2 = UTHBuildPacket(NULL, 0, IPPROTO_TCP); - p2->flow = &f; - p2->flowflags |= FLOW_PKT_TOCLIENT; - p2->flowflags |= FLOW_PKT_ESTABLISHED; - p2->flags |= PKT_HAS_FLOW | PKT_STREAM_EST; - - StreamTcpInitConfig(TRUE); - - DetectEngineCtx *de_ctx = DetectEngineCtxInit(); - if (de_ctx == NULL) { - goto end; - } - - de_ctx->flags |= DE_QUIET; - - s = de_ctx->sig_list = SigInit(de_ctx,"alert http any any -> any any " - "(flow:to_server; content:\"request_user_agent\"; " - "http_cookie; sid:1;)"); - if (s == NULL) { - goto end; - } - s = de_ctx->sig_list->next = SigInit(de_ctx,"alert http any any -> any any " - "(flow:to_client; content:\"response_user_agent\"; " - "http_cookie; sid:2;)"); - if (s == NULL) { - goto end; - } - - SigGroupBuild(de_ctx); - DetectEngineThreadCtxInit(&th_v, (void *)de_ctx, (void *)&det_ctx); - - /* request */ - SCMutexLock(&f.m); - int r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOSERVER, - httpbuf_request, httpbuf_request_len); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - http_state = f.alstate; - if (http_state == NULL) { - printf("no http state: "); - goto end; - } - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p1); - if (!PacketAlertCheck(p1, 1) || PacketAlertCheck(p1, 2)) { - goto end; - } - - /* response */ - SCMutexLock(&f.m); - r = AppLayerParserParse(alp_tctx, &f, ALPROTO_HTTP, STREAM_TOCLIENT, - httpbuf_response, httpbuf_response_len); - if (r != 0) { - printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r); - result = 0; - SCMutexUnlock(&f.m); - goto end; - } - SCMutexUnlock(&f.m); - - /* do detect */ - SigMatchSignatures(&th_v, de_ctx, det_ctx, p2); - if (PacketAlertCheck(p2, 1) || !PacketAlertCheck(p2, 2)) { - goto end; - } - - result = 1; - -end: - if (alp_tctx != NULL) - AppLayerParserThreadCtxFree(alp_tctx); - if (det_ctx != NULL) { - DetectEngineThreadCtxDeinit(&th_v, (void *)det_ctx); - } - if (de_ctx != NULL) { - SigGroupCleanup(de_ctx); - DetectEngineCtxFree(de_ctx); - } - - StreamTcpFreeConfig(TRUE); - UTHFreePackets(&p1, 1); - UTHFreePackets(&p2, 1); - return result; -} - -#endif /* UNITTESTS */ - -/** - * \brief Register the UNITTESTS for the http_cookie keyword - */ -void DetectHttpCookieRegisterTests (void) -{ -#ifdef UNITTESTS /* UNITTESTS */ - UtRegisterTest("DetectHttpCookieTest01", DetectHttpCookieTest01, 1); - UtRegisterTest("DetectHttpCookieTest02", DetectHttpCookieTest02, 1); - UtRegisterTest("DetectHttpCookieTest03", DetectHttpCookieTest03, 1); - UtRegisterTest("DetectHttpCookieTest04", DetectHttpCookieTest04, 1); - UtRegisterTest("DetectHttpCookieTest05", DetectHttpCookieTest05, 1); - UtRegisterTest("DetectHttpCookieTest06", DetectHttpCookieTest06, 1); - UtRegisterTest("DetectHttpCookieSigTest01", DetectHttpCookieSigTest01, 1); - UtRegisterTest("DetectHttpCookieSigTest02", DetectHttpCookieSigTest02, 1); - UtRegisterTest("DetectHttpCookieSigTest03", DetectHttpCookieSigTest03, 1); - UtRegisterTest("DetectHttpCookieSigTest04", DetectHttpCookieSigTest04, 1); - UtRegisterTest("DetectHttpCookieSigTest05", DetectHttpCookieSigTest05, 1); - UtRegisterTest("DetectHttpCookieSigTest06", DetectHttpCookieSigTest06, 1); - UtRegisterTest("DetectHttpCookieSigTest07", DetectHttpCookieSigTest07, 1); - UtRegisterTest("DetectHttpCookieSigTest08", DetectHttpCookieSigTest08, 1); - UtRegisterTest("DetectHttpCookieSigTest09", DetectHttpCookieSigTest09, 1); -#endif /* UNITTESTS */ - -} -/** - * @} - */ |