1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
|
/* Copyright (C) 2020 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 Pierre Chifflier <chifflier@wzdftpd.net>
* \author Frank Honza <frank.honza@dcso.de>
*
* IKE application layer detector and parser.
*
*/
#include "suricata-common.h"
#include "stream.h"
#include "conf.h"
#include "util-unittest.h"
#include "app-layer-detect-proto.h"
#include "app-layer-parser.h"
#include "app-layer-ike.h"
#include "rust.h"
void RegisterIKEParsers(void)
{
rs_ike_register_parser();
#ifdef UNITTESTS
AppLayerParserRegisterProtocolUnittests(IPPROTO_UDP, ALPROTO_IKE, IKEParserRegisterTests);
#endif
}
#ifdef UNITTESTS
#include "stream-tcp.h"
#include "util-unittest-helper.h"
#include "flow-util.h"
static int IkeParserTest(void)
{
uint64_t ret[4];
Flow f;
TcpSession ssn;
AppLayerParserThreadCtx *alp_tctx = AppLayerParserThreadCtxAlloc();
FAIL_IF_NULL(alp_tctx);
memset(&f, 0, sizeof(f));
memset(&ssn, 0, sizeof(ssn));
FLOW_INITIALIZE(&f);
f.protoctx = (void *)&ssn;
f.proto = IPPROTO_UDP;
f.protomap = FlowGetProtoMapping(f.proto);
f.alproto = ALPROTO_IKE;
StreamTcpInitConfig(true);
static const unsigned char initiator_sa[] = { 0xe4, 0x7a, 0x59, 0x1f, 0xd0, 0x57, 0x58, 0x7f,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xa8, 0x0d, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x30, 0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x28, 0x01,
0x01, 0x00, 0x00, 0x80, 0x01, 0x00, 0x07, 0x80, 0x0e, 0x00, 0x80, 0x80, 0x02, 0x00, 0x02,
0x80, 0x04, 0x00, 0x02, 0x80, 0x03, 0x00, 0x01, 0x80, 0x0b, 0x00, 0x01, 0x00, 0x0c, 0x00,
0x04, 0x00, 0x01, 0x51, 0x80, 0x0d, 0x00, 0x00, 0x14, 0x4a, 0x13, 0x1c, 0x81, 0x07, 0x03,
0x58, 0x45, 0x5c, 0x57, 0x28, 0xf2, 0x0e, 0x95, 0x45, 0x2f, 0x0d, 0x00, 0x00, 0x14, 0x43,
0x9b, 0x59, 0xf8, 0xba, 0x67, 0x6c, 0x4c, 0x77, 0x37, 0xae, 0x22, 0xea, 0xb8, 0xf5, 0x82,
0x0d, 0x00, 0x00, 0x14, 0x7d, 0x94, 0x19, 0xa6, 0x53, 0x10, 0xca, 0x6f, 0x2c, 0x17, 0x9d,
0x92, 0x15, 0x52, 0x9d, 0x56, 0x00, 0x00, 0x00, 0x14, 0x90, 0xcb, 0x80, 0x91, 0x3e, 0xbb,
0x69, 0x6e, 0x08, 0x63, 0x81, 0xb5, 0xec, 0x42, 0x7b, 0x1f };
// the initiator sending the security association with proposals
int r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_IKE, STREAM_TOSERVER | STREAM_START,
(uint8_t *)initiator_sa, sizeof(initiator_sa));
FAIL_IF_NOT(r == 0);
static const unsigned char responder_sa[] = { 0xe4, 0x7a, 0x59, 0x1f, 0xd0, 0x57, 0x58, 0x7f,
0xa0, 0x0b, 0x8e, 0xf0, 0x90, 0x2b, 0xb8, 0xec, 0x01, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x6c, 0x0d, 0x00, 0x00, 0x3c, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00, 0x00, 0x30, 0x01, 0x01, 0x00, 0x01, 0x00, 0x00, 0x00, 0x28, 0x01,
0x01, 0x00, 0x00, 0x80, 0x01, 0x00, 0x07, 0x80, 0x0e, 0x00, 0x80, 0x80, 0x02, 0x00, 0x02,
0x80, 0x04, 0x00, 0x02, 0x80, 0x03, 0x00, 0x01, 0x80, 0x0b, 0x00, 0x01, 0x00, 0x0c, 0x00,
0x04, 0x00, 0x01, 0x51, 0x80, 0x00, 0x00, 0x00, 0x14, 0x4a, 0x13, 0x1c, 0x81, 0x07, 0x03,
0x58, 0x45, 0x5c, 0x57, 0x28, 0xf2, 0x0e, 0x95, 0x45, 0x2f };
// responder answering with chosen proposal
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_IKE, STREAM_TOCLIENT,
(uint8_t *)responder_sa, sizeof(responder_sa));
FAIL_IF_NOT(r == 0);
static const unsigned char initiator_key[] = { 0xe4, 0x7a, 0x59, 0x1f, 0xd0, 0x57, 0x58, 0x7f,
0xa0, 0x0b, 0x8e, 0xf0, 0x90, 0x2b, 0xb8, 0xec, 0x04, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x1c, 0x0a, 0x00, 0x00, 0x84, 0x35, 0x04, 0xd3, 0xd2, 0xed, 0x14,
0xe0, 0xca, 0x03, 0xb8, 0x51, 0xa5, 0x1a, 0x9d, 0xa2, 0xe5, 0xa4, 0xc1, 0x4c, 0x1d, 0x7e,
0xc3, 0xe1, 0xfb, 0xe9, 0x50, 0x02, 0x54, 0x24, 0x51, 0x4b, 0x3c, 0x69, 0xed, 0x7f, 0xbb,
0x44, 0xe0, 0x92, 0x25, 0xda, 0x52, 0xd2, 0xa9, 0x26, 0x04, 0xa9, 0x9b, 0xf6, 0x1b, 0x7b,
0xee, 0xd7, 0xfb, 0xfa, 0x63, 0x5e, 0x82, 0xf0, 0x65, 0xf4, 0xfe, 0x78, 0x07, 0x51, 0x35,
0x4d, 0xbe, 0x47, 0x4c, 0x3d, 0xe7, 0x20, 0x7d, 0xcf, 0x69, 0xfd, 0xbb, 0xed, 0x32, 0xc1,
0x69, 0x1c, 0xc1, 0x49, 0xb3, 0x18, 0xee, 0xe0, 0x03, 0x70, 0xe6, 0x5f, 0xc3, 0x06, 0x9b,
0xba, 0xcf, 0xb0, 0x13, 0x46, 0x71, 0x73, 0x96, 0x6e, 0x9d, 0x5f, 0x4b, 0xc4, 0xf3, 0x85,
0x7e, 0x35, 0x9b, 0xba, 0x3a, 0xdb, 0xb6, 0xef, 0xee, 0xa5, 0x16, 0xf3, 0x89, 0x7d, 0x85,
0x34, 0xf3, 0x0d, 0x00, 0x00, 0x18, 0x89, 0xd7, 0xc8, 0xfb, 0xf9, 0x4b, 0x51, 0x5b, 0x52,
0x1d, 0x5d, 0x95, 0x89, 0xc2, 0x60, 0x20, 0x21, 0xe1, 0xa7, 0x09, 0x0d, 0x00, 0x00, 0x14,
0xaf, 0xca, 0xd7, 0x13, 0x68, 0xa1, 0xf1, 0xc9, 0x6b, 0x86, 0x96, 0xfc, 0x77, 0x57, 0x01,
0x00, 0x0d, 0x00, 0x00, 0x14, 0x11, 0xbd, 0xfe, 0x02, 0xd0, 0x56, 0x58, 0x7f, 0x2c, 0x18,
0x12, 0x59, 0x72, 0xc3, 0x24, 0x01, 0x14, 0x00, 0x00, 0x0c, 0x09, 0x00, 0x26, 0x89, 0xdf,
0xd6, 0xb7, 0x12, 0x14, 0x00, 0x00, 0x18, 0x15, 0x74, 0xd6, 0x4c, 0x01, 0x65, 0xba, 0xd1,
0x6a, 0x02, 0x3f, 0x03, 0x8d, 0x45, 0xa0, 0x74, 0x98, 0xd8, 0xd0, 0x51, 0x00, 0x00, 0x00,
0x18, 0xfe, 0xbf, 0x46, 0x2f, 0x1c, 0xd7, 0x58, 0x05, 0xa7, 0xba, 0xa2, 0x87, 0x47, 0xe7,
0x69, 0xd6, 0x74, 0xf8, 0x56, 0x00 };
// the initiator sending key exchange
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_IKE, STREAM_TOSERVER,
(uint8_t *)initiator_key, sizeof(initiator_key));
FAIL_IF_NOT(r == 0);
static const unsigned char responder_key[] = { 0xe4, 0x7a, 0x59, 0x1f, 0xd0, 0x57, 0x58, 0x7f,
0xa0, 0x0b, 0x8e, 0xf0, 0x90, 0x2b, 0xb8, 0xec, 0x04, 0x10, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x01, 0x30, 0x0a, 0x00, 0x00, 0x84, 0x6d, 0x02, 0x6d, 0x56, 0x16, 0xc4,
0x5b, 0xe0, 0x5e, 0x5b, 0x89, 0x84, 0x11, 0xe9, 0xf9, 0x5d, 0x19, 0x5c, 0xea, 0x00, 0x9a,
0xd2, 0x2c, 0x62, 0xbe, 0xf0, 0x6c, 0x57, 0x1b, 0x7c, 0xfb, 0xc4, 0x79, 0x2f, 0x45, 0x56,
0x4e, 0xc7, 0x10, 0xac, 0x58, 0x4a, 0xa1, 0x8d, 0x20, 0xcb, 0xc8, 0xf5, 0xf8, 0x91, 0x06,
0x66, 0xb8, 0x9e, 0x4e, 0xe2, 0xf9, 0x5a, 0xbc, 0x02, 0x30, 0xe2, 0xcb, 0xa1, 0xb8, 0x8a,
0xc4, 0xbb, 0xa7, 0xfc, 0xc8, 0x18, 0xa9, 0x86, 0xc0, 0x1a, 0x4c, 0xa8, 0x65, 0xa5, 0xeb,
0x82, 0x88, 0x4d, 0xbe, 0xc8, 0x5b, 0xfd, 0x7d, 0x1a, 0x30, 0x3b, 0x09, 0x89, 0x4d, 0xcf,
0x2e, 0x37, 0x85, 0xfd, 0x79, 0xdb, 0xa2, 0x25, 0x37, 0x7c, 0xf8, 0xcc, 0xa0, 0x09, 0xce,
0xff, 0xbb, 0x6a, 0xa3, 0x8b, 0x64, 0x8c, 0x4b, 0x05, 0x40, 0x4f, 0x1c, 0xfa, 0xac, 0x36,
0x1a, 0xff, 0x0d, 0x00, 0x00, 0x18, 0x15, 0xb6, 0x88, 0x42, 0x1e, 0xd5, 0xc3, 0xdd, 0x92,
0xd3, 0xb8, 0x6e, 0x47, 0xa7, 0x6f, 0x0d, 0x39, 0xcc, 0x09, 0xe0, 0x0d, 0x00, 0x00, 0x14,
0x12, 0xf5, 0xf2, 0x8c, 0x45, 0x71, 0x68, 0xa9, 0x70, 0x2d, 0x9f, 0xe2, 0x74, 0xcc, 0x01,
0x00, 0x0d, 0x00, 0x00, 0x14, 0xaf, 0xca, 0xd7, 0x13, 0x68, 0xa1, 0xf1, 0xc9, 0x6b, 0x86,
0x96, 0xfc, 0x77, 0x57, 0x01, 0x00, 0x0d, 0x00, 0x00, 0x14, 0x55, 0xcc, 0x29, 0xed, 0x90,
0x2a, 0xb8, 0xec, 0x53, 0xb1, 0xdf, 0x86, 0x7c, 0x61, 0x09, 0x29, 0x14, 0x00, 0x00, 0x0c,
0x09, 0x00, 0x26, 0x89, 0xdf, 0xd6, 0xb7, 0x12, 0x14, 0x00, 0x00, 0x18, 0xfe, 0xbf, 0x46,
0x2f, 0x1c, 0xd7, 0x58, 0x05, 0xa7, 0xba, 0xa2, 0x87, 0x47, 0xe7, 0x69, 0xd6, 0x74, 0xf8,
0x56, 0x00, 0x00, 0x00, 0x00, 0x18, 0x15, 0x74, 0xd6, 0x4c, 0x01, 0x65, 0xba, 0xd1, 0x6a,
0x02, 0x3f, 0x03, 0x8d, 0x45, 0xa0, 0x74, 0x98, 0xd8, 0xd0, 0x51 };
// responder sending key exchange
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_IKE, STREAM_TOCLIENT,
(uint8_t *)responder_key, sizeof(responder_key));
FAIL_IF_NOT(r == 0);
static const unsigned char encrypted[] = { 0xe4, 0x7a, 0x59, 0x1f, 0xd0, 0x57, 0x58, 0x7f, 0xa0,
0x0b, 0x8e, 0xf0, 0x90, 0x2b, 0xb8, 0xec, 0x05, 0x10, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x6c, 0xa4, 0x85, 0xa5, 0xd5, 0x86, 0x8a, 0x3c, 0x92, 0x5d, 0xed, 0xf2,
0xd1, 0x0d, 0x5e, 0x47, 0x11, 0x2b, 0xc2, 0x94, 0x60, 0x18, 0xc7, 0x61, 0x28, 0xed, 0x7b,
0xb2, 0x9d, 0xb0, 0x61, 0xfd, 0xab, 0xf7, 0x9a, 0x18, 0xe7, 0x56, 0x89, 0x53, 0x6d, 0x27,
0xcb, 0xe0, 0x92, 0x1d, 0x67, 0xf7, 0x02, 0xf3, 0x47, 0xae, 0x6e, 0x79, 0xde, 0xe1, 0x09,
0x4d, 0xc8, 0x6a, 0x5a, 0x26, 0x44, 0x8a, 0xde, 0x72, 0x83, 0x06, 0x94, 0xe1, 0x5d, 0xca,
0x2d, 0x96, 0x03, 0xeb, 0xc5, 0xf7, 0x90, 0x47, 0x3d };
// the initiator sending encrypted data
r = AppLayerParserParse(NULL, alp_tctx, &f, ALPROTO_IKE, STREAM_TOSERVER, (uint8_t *)encrypted,
sizeof(encrypted));
FAIL_IF_NOT(r == 0);
AppLayerParserTransactionsCleanup(&f, STREAM_TOCLIENT);
UTHAppLayerParserStateGetIds(f.alparser, &ret[0], &ret[1], &ret[2], &ret[3]);
FAIL_IF_NOT(ret[0] == 5); // inspect_id[0]
FAIL_IF_NOT(ret[1] == 5); // inspect_id[1]
FAIL_IF_NOT(ret[2] == 5); // log_id
FAIL_IF_NOT(ret[3] == 5); // min_id
AppLayerParserThreadCtxFree(alp_tctx);
StreamTcpFreeConfig(true);
FLOW_DESTROY(&f);
PASS;
}
#endif
void IKEParserRegisterTests(void)
{
#ifdef UNITTESTS
UtRegisterTest("IkeParserTest", IkeParserTest);
#endif
}
|
