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dce tests to check SigMatchSignatures()'s working against new dce transactions

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remotes/origin/master-1.0.x
Anoop Saldanha 16 years ago committed by Victor Julien
parent d6709b0961
commit bb8937477d
1 changed files with 458 additions and 0 deletions
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src/detect-engine-dcepayload.c
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@ -6051,6 +6051,462 @@ end:
return result; return result;
} }
/**
* \test Test the working of detection engien with respect to dce keywords.
*/
int DcePayloadTest13(void)
{
int result = 0;
uint8_t 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,
};
uint32_t request1_len = sizeof(request1);
uint8_t 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,
};
uint32_t response1_len = sizeof(response1);
uint8_t 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,
};
uint32_t request2_len = sizeof(request2);
uint8_t 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,
};
uint32_t response2_len = sizeof(response2);
uint8_t 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,
};
uint32_t request3_len = sizeof(request3);
uint8_t 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 response3_len = sizeof(response3);
TcpSession ssn;
Packet p[8];
ThreadVars tv;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
Flow f;
int r;
int i = 0;
char *sig1 = "alert tcp any any -> any any "
"(dce_stub_data; sid:1;)";
Signature *s;
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
/* let the 7 and the 8th packet be dummy packets the client sends to the server */
for (i = 0; i < 8; i++) {
memset(&p[i], 0, sizeof(Packet));
p[i].src.family = AF_INET;
p[i].dst.family = AF_INET;
p[i].payload = NULL;
p[i].payload_len = 0;
p[i].proto = IPPROTO_TCP;
p[i].flow = &f;
p[i].flowflags |= FLOW_PKT_TOSERVER;
}
p[1].flowflags |= FLOW_PKT_TOCLIENT;
p[3].flowflags |= FLOW_PKT_TOCLIENT;
p[5].flowflags |= FLOW_PKT_TOCLIENT;
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.src.family = AF_INET;
f.dst.family = AF_INET;
f.alproto = ALPROTO_DCERPC;
StreamTcpInitConfig(TRUE);
FlowL7DataPtrInit(&f);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, sig1);
s = de_ctx->sig_list;
if (s == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, request1, request1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[0]);
if (!(PacketAlertCheck(&p[0], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[6]);
if ((PacketAlertCheck(&p[6], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, response1, response1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[1]);
if ((PacketAlertCheck(&p[1], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, request2, request2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
/* we should have a match for the sig once again for the same flow, since
* the detection engine state for the flow has been reset because of a
* fresh transaction */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[2]);
if (!(PacketAlertCheck(&p[2], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[7]);
if ((PacketAlertCheck(&p[7], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, response2, response2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[3]);
if ((PacketAlertCheck(&p[3], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, request3, request3_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
/* we should have a match for the sig once again for the same flow, since
* the detection engine state for the flow has been reset because of a
* fresh transaction */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[4]);
if (!(PacketAlertCheck(&p[4], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, response3, response3_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[5]);
if ((PacketAlertCheck(&p[5], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
return result;
}
/**
* \test Test the working of detection engien with respect to dce keywords.
*/
int DcePayloadTest14(void)
{
int result = 0;
uint8_t request1[] = {
0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
0x68, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1a, 0x00,
0x76, 0x7e, 0x32, 0x00, 0x0f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00,
0x5c, 0x00, 0x5c, 0x00, 0x31, 0x00, 0x37, 0x00,
0x31, 0x00, 0x2e, 0x00, 0x37, 0x00, 0x31, 0x00,
0x2e, 0x00, 0x38, 0x00, 0x34, 0x00, 0x2e, 0x00,
0x36, 0x00, 0x37, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x84, 0xf9, 0x7f, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff,
0x14, 0xfa, 0x7f, 0x01, 0x00, 0x00, 0x00, 0x00
};
uint32_t request1_len = sizeof(request1);
uint8_t 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,
0x81, 0xbb, 0x7a, 0x36, 0x44, 0x98, 0xf1, 0x35,
0xad, 0x32, 0x98, 0xf0, 0x38, 0x00, 0x10, 0x03,
0x02, 0x00, 0x00, 0x00, 0x04, 0x5d, 0x88, 0x8a,
0xeb, 0x1c, 0xc9, 0x11, 0x9f, 0xe8, 0x08, 0x00,
0x2b, 0x10, 0x48, 0x60, 0x02, 0x00, 0x00, 0x00
};
uint32_t bind_len = sizeof(bind);
uint8_t bind_ack[] = {
0x05, 0x00, 0x0c, 0x03, 0x10, 0x00, 0x00, 0x00,
0x44, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0xb8, 0x10, 0xb8, 0x10, 0x74, 0x73, 0x00, 0x00,
0x0d, 0x00, 0x5c, 0x50, 0x49, 0x50, 0x45, 0x5c,
0x6e, 0x74, 0x73, 0x76, 0x63, 0x73, 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
};
uint32_t bind_ack_len = sizeof(bind_ack);
uint8_t request2[] = {
0x05, 0x00, 0x00, 0x03, 0x10, 0x00, 0x00, 0x00,
0x40, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x28, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1b, 0x00,
0x64, 0x7e, 0x32, 0x00, 0x0f, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x0f, 0x00, 0x00, 0x00,
0x5c, 0x5c, 0x31, 0x37, 0x31, 0x2e, 0x37, 0x31,
0x2e, 0x38, 0x34, 0x2e, 0x36, 0x37, 0x00, 0x8a,
0x00, 0x00, 0x00, 0x00, 0x3f, 0x00, 0x0f, 0x00
};
uint32_t request2_len = sizeof(request2);
uint8_t response2[] = {
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, 0xd2, 0xc4, 0x88, 0x14,
0xef, 0x31, 0xbb, 0x4d, 0xa8, 0x13, 0xb7, 0x1b,
0x47, 0x49, 0xb5, 0xd7, 0x00, 0x00, 0x00, 0x00
};
uint32_t response2_len = sizeof(response2);
TcpSession ssn;
Packet p[6];
ThreadVars tv;
DetectEngineCtx *de_ctx = NULL;
DetectEngineThreadCtx *det_ctx = NULL;
Flow f;
int r;
int i = 0;
char *sig1 = "alert tcp any any -> any any "
"(dce_stub_data; sid:1;)";
Signature *s;
memset(&tv, 0, sizeof(ThreadVars));
memset(&f, 0, sizeof(Flow));
memset(&ssn, 0, sizeof(TcpSession));
for (i = 0; i < 6; i++) {
memset(&p[i], 0, sizeof(Packet));
p[i].src.family = AF_INET;
p[i].dst.family = AF_INET;
p[i].payload = NULL;
p[i].payload_len = 0;
p[i].proto = IPPROTO_TCP;
p[i].flow = &f;
p[i].flowflags |= FLOW_PKT_TOSERVER;
}
p[3].flowflags |= FLOW_PKT_TOCLIENT;
p[5].flowflags |= FLOW_PKT_TOCLIENT;
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.src.family = AF_INET;
f.dst.family = AF_INET;
f.alproto = ALPROTO_DCERPC;
StreamTcpInitConfig(TRUE);
FlowL7DataPtrInit(&f);
de_ctx = DetectEngineCtxInit();
if (de_ctx == NULL)
goto end;
de_ctx->flags |= DE_QUIET;
de_ctx->sig_list = SigInit(de_ctx, sig1);
s = de_ctx->sig_list;
if (s == NULL)
goto end;
SigGroupBuild(de_ctx);
DetectEngineThreadCtxInit(&tv, (void *)de_ctx, (void *)&det_ctx);
/* request 1 */
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, request1, request1_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[0]);
if (!(PacketAlertCheck(&p[0], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[1]);
if ((PacketAlertCheck(&p[1], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* bind */
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, bind, bind_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[2]);
if ((PacketAlertCheck(&p[2], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* bind_ack. A new transaction initiation */
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, bind_ack, bind_ack_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[3]);
if ((PacketAlertCheck(&p[3], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* we should have a match for the sig once again for the same flow, since
* the detection engine state for the flow has been reset because of a
* fresh transaction */
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOSERVER, request2, request2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[4]);
if (!(PacketAlertCheck(&p[4], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
/* response */
r = AppLayerParse(&f, ALPROTO_DCERPC, STREAM_TOCLIENT, response2, response2_len);
if (r != 0) {
printf("toserver chunk 1 returned %" PRId32 ", expected 0: ", r);
result = 0;
goto end;
}
/* detection phase */
SigMatchSignatures(&tv, de_ctx, det_ctx, &p[5]);
if ((PacketAlertCheck(&p[5], 1))) {
printf("sid 1 didn't match but should have: ");
goto end;
}
result = 1;
end:
return result;
}
#endif /* UNITTESTS */ #endif /* UNITTESTS */
void DcePayloadRegisterTests(void) void DcePayloadRegisterTests(void)
@ -6069,6 +6525,8 @@ void DcePayloadRegisterTests(void)
UtRegisterTest("DcePayloadTest10", DcePayloadTest10, 1); UtRegisterTest("DcePayloadTest10", DcePayloadTest10, 1);
UtRegisterTest("DcePayloadTest11", DcePayloadTest11, 1); UtRegisterTest("DcePayloadTest11", DcePayloadTest11, 1);
UtRegisterTest("DcePayloadTest12", DcePayloadTest12, 1); UtRegisterTest("DcePayloadTest12", DcePayloadTest12, 1);
UtRegisterTest("DcePayloadTest13", DcePayloadTest13, 1);
UtRegisterTest("DcePayloadTest14", DcePayloadTest14, 1);
#endif /* UNITTESTS */ #endif /* UNITTESTS */
return; return;

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