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DEFINITIONS
This source file includes following definitions.
- test_PACVerify
- torture_rpc_remote_pac
1 /*
2 Unix SMB/CIFS implementation.
3
4 test suite for netlogon PAC operations
5
6 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2008
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
20 */
21
22 #include "includes.h"
23 #include "torture/torture.h"
24 #include "lib/events/events.h"
25 #include "auth/auth.h"
26 #include "auth/gensec/gensec.h"
27 #include "lib/cmdline/popt_common.h"
28 #include "torture/rpc/rpc.h"
29 #include "torture/rpc/netlogon.h"
30 #include "libcli/auth/libcli_auth.h"
31 #include "librpc/gen_ndr/ndr_netlogon_c.h"
32 #include "librpc/gen_ndr/ndr_krb5pac.h"
33 #include "param/param.h"
34 #include "lib/messaging/irpc.h"
35 #include "cluster/cluster.h"
36
37 #define TEST_MACHINE_NAME "torturepactest"
38
39 /* Check to see if we can pass the PAC across to the NETLOGON server for validation */
40
41 /* Also happens to be a really good one-step verfication of our Kerberos stack */
42
43 static bool test_PACVerify(struct torture_context *tctx,
/* [<][>][^][v][top][bottom][index][help] */
44 struct dcerpc_pipe *p,
45 struct cli_credentials *credentials)
46 {
47 NTSTATUS status;
48
49 struct netr_LogonSamLogon r;
50
51 union netr_LogonLevel logon;
52 union netr_Validation validation;
53 uint8_t authoritative;
54 struct netr_Authenticator return_authenticator;
55
56 struct netr_GenericInfo generic;
57 struct netr_Authenticator auth, auth2;
58
59
60 struct creds_CredentialState *creds;
61 struct gensec_security *gensec_client_context;
62 struct gensec_security *gensec_server_context;
63
64 DATA_BLOB client_to_server, server_to_client, pac_wrapped, payload;
65 struct PAC_Validate pac_wrapped_struct;
66
67 enum ndr_err_code ndr_err;
68
69 struct auth_session_info *session_info;
70
71 char *tmp_dir;
72
73 TALLOC_CTX *tmp_ctx = talloc_new(tctx);
74
75 torture_assert(tctx, tmp_ctx != NULL, "talloc_new() failed");
76
77 if (!test_SetupCredentials2(p, tctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
78 credentials, SEC_CHAN_BDC,
79 &creds)) {
80 return false;
81 }
82
83 status = torture_temp_dir(tctx, "PACVerify", &tmp_dir);
84 torture_assert_ntstatus_ok(tctx, status, "torture_temp_dir failed");
85
86 status = gensec_client_start(tctx, &gensec_client_context, tctx->ev,
87 lp_gensec_settings(tctx, tctx->lp_ctx));
88 torture_assert_ntstatus_ok(tctx, status, "gensec_client_start (client) failed");
89
90 status = gensec_set_target_hostname(gensec_client_context, TEST_MACHINE_NAME);
91
92 status = gensec_set_credentials(gensec_client_context, cmdline_credentials);
93 torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (client) failed");
94
95 status = gensec_start_mech_by_sasl_name(gensec_client_context, "GSSAPI");
96 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (client) failed");
97
98 status = gensec_server_start(tctx, tctx->ev,
99 lp_gensec_settings(tctx, tctx->lp_ctx),
100 NULL, &gensec_server_context);
101 torture_assert_ntstatus_ok(tctx, status, "gensec_server_start (server) failed");
102
103 status = gensec_set_credentials(gensec_server_context, credentials);
104 torture_assert_ntstatus_ok(tctx, status, "gensec_set_credentials (server) failed");
105
106 status = gensec_start_mech_by_sasl_name(gensec_server_context, "GSSAPI");
107 torture_assert_ntstatus_ok(tctx, status, "gensec_start_mech_by_sasl_name (server) failed");
108
109 server_to_client = data_blob(NULL, 0);
110
111 do {
112 /* Do a client-server update dance */
113 status = gensec_update(gensec_client_context, tmp_ctx, server_to_client, &client_to_server);
114 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
115 torture_assert_ntstatus_ok(tctx, status, "gensec_update (client) failed");
116 }
117
118 status = gensec_update(gensec_server_context, tmp_ctx, client_to_server, &server_to_client);
119 if (!NT_STATUS_EQUAL(status, NT_STATUS_MORE_PROCESSING_REQUIRED)) {;
120 torture_assert_ntstatus_ok(tctx, status, "gensec_update (server) failed");
121 }
122
123 if (NT_STATUS_IS_OK(status)) {
124 break;
125 }
126 } while (1);
127
128 /* Extract the PAC using Samba's code */
129
130 status = gensec_session_info(gensec_server_context, &session_info);
131 torture_assert_ntstatus_ok(tctx, status, "gensec_session_info failed");
132
133 pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
134 pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
135 pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
136 pac_wrapped_struct.ChecksumAndSignature = payload
137 = data_blob_talloc(tmp_ctx, NULL,
138 pac_wrapped_struct.ChecksumLength
139 + pac_wrapped_struct.SignatureLength);
140 memcpy(&payload.data[0],
141 session_info->server_info->pac_srv_sig.signature.data,
142 pac_wrapped_struct.ChecksumLength);
143 memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
144 session_info->server_info->pac_kdc_sig.signature.data,
145 pac_wrapped_struct.SignatureLength);
146
147 ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
148 (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
149 torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
150
151 torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
152 creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
153
154 generic.length = pac_wrapped.length;
155 generic.data = pac_wrapped.data;
156
157 /* Validate it over the netlogon pipe */
158
159 generic.identity_info.parameter_control = 0;
160 generic.identity_info.logon_id_high = 0;
161 generic.identity_info.logon_id_low = 0;
162 generic.identity_info.domain_name.string = session_info->server_info->domain_name;
163 generic.identity_info.account_name.string = session_info->server_info->account_name;
164 generic.identity_info.workstation.string = TEST_MACHINE_NAME;
165
166 generic.package_name.string = "Kerberos";
167
168 logon.generic = &generic;
169
170 ZERO_STRUCT(auth2);
171 creds_client_authenticator(creds, &auth);
172 r.in.credential = &auth;
173 r.in.return_authenticator = &auth2;
174 r.in.logon = &logon;
175 r.in.logon_level = NetlogonGenericInformation;
176 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
177 r.in.computer_name = cli_credentials_get_workstation(credentials);
178 r.in.validation_level = NetlogonValidationGenericInfo2;
179 r.out.validation = &validation;
180 r.out.authoritative = &authoritative;
181 r.out.return_authenticator = &return_authenticator;
182
183 status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
184
185 torture_assert_ntstatus_ok(tctx, status, "LogonSamLogon failed");
186
187 /* This will break the signature nicely (even in the crypto wrapping), check we get a logon failure */
188 generic.data[generic.length-1]++;
189
190 logon.generic = &generic;
191
192 ZERO_STRUCT(auth2);
193 creds_client_authenticator(creds, &auth);
194 r.in.credential = &auth;
195 r.in.return_authenticator = &auth2;
196 r.in.logon_level = NetlogonGenericInformation;
197 r.in.logon = &logon;
198 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
199 r.in.computer_name = cli_credentials_get_workstation(credentials);
200 r.in.validation_level = NetlogonValidationGenericInfo2;
201
202 status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
203
204 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
205
206 torture_assert(tctx, creds_client_check(creds, &r.out.return_authenticator->cred),
207 "Credential chaining failed");
208
209 /* This will break the parsing nicely (even in the crypto wrapping), check we get INVALID_PARAMETER */
210 generic.length--;
211
212 logon.generic = &generic;
213
214 ZERO_STRUCT(auth2);
215 creds_client_authenticator(creds, &auth);
216 r.in.credential = &auth;
217 r.in.return_authenticator = &auth2;
218 r.in.logon_level = NetlogonGenericInformation;
219 r.in.logon = &logon;
220 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
221 r.in.computer_name = cli_credentials_get_workstation(credentials);
222 r.in.validation_level = NetlogonValidationGenericInfo2;
223
224 status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
225
226 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
227
228 torture_assert(tctx, creds_client_check(creds, &r.out.return_authenticator->cred),
229 "Credential chaining failed");
230
231 pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
232 pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
233
234 /* Break the SignatureType */
235 pac_wrapped_struct.SignatureType++;
236
237 pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
238 pac_wrapped_struct.ChecksumAndSignature = payload
239 = data_blob_talloc(tmp_ctx, NULL,
240 pac_wrapped_struct.ChecksumLength
241 + pac_wrapped_struct.SignatureLength);
242 memcpy(&payload.data[0],
243 session_info->server_info->pac_srv_sig.signature.data,
244 pac_wrapped_struct.ChecksumLength);
245 memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
246 session_info->server_info->pac_kdc_sig.signature.data,
247 pac_wrapped_struct.SignatureLength);
248
249 ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
250 (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
251 torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
252
253 torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
254 creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
255
256 generic.length = pac_wrapped.length;
257 generic.data = pac_wrapped.data;
258
259 logon.generic = &generic;
260
261 ZERO_STRUCT(auth2);
262 creds_client_authenticator(creds, &auth);
263 r.in.credential = &auth;
264 r.in.return_authenticator = &auth2;
265 r.in.logon_level = NetlogonGenericInformation;
266 r.in.logon = &logon;
267 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
268 r.in.computer_name = cli_credentials_get_workstation(credentials);
269 r.in.validation_level = NetlogonValidationGenericInfo2;
270
271 status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
272
273 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_LOGON_FAILURE, "LogonSamLogon failed");
274
275 torture_assert(tctx, creds_client_check(creds, &r.out.return_authenticator->cred),
276 "Credential chaining failed");
277
278 pac_wrapped_struct.ChecksumLength = session_info->server_info->pac_srv_sig.signature.length;
279 pac_wrapped_struct.SignatureType = session_info->server_info->pac_kdc_sig.type;
280 pac_wrapped_struct.SignatureLength = session_info->server_info->pac_kdc_sig.signature.length;
281
282 pac_wrapped_struct.ChecksumAndSignature = payload
283 = data_blob_talloc(tmp_ctx, NULL,
284 pac_wrapped_struct.ChecksumLength
285 + pac_wrapped_struct.SignatureLength);
286 memcpy(&payload.data[0],
287 session_info->server_info->pac_srv_sig.signature.data,
288 pac_wrapped_struct.ChecksumLength);
289 memcpy(&payload.data[pac_wrapped_struct.ChecksumLength],
290 session_info->server_info->pac_kdc_sig.signature.data,
291 pac_wrapped_struct.SignatureLength);
292
293 /* Break the signature length */
294 pac_wrapped_struct.SignatureLength++;
295
296 ndr_err = ndr_push_struct_blob(&pac_wrapped, tmp_ctx, lp_iconv_convenience(tctx->lp_ctx), &pac_wrapped_struct,
297 (ndr_push_flags_fn_t)ndr_push_PAC_Validate);
298 torture_assert(tctx, NDR_ERR_CODE_IS_SUCCESS(ndr_err), "ndr_push_struct_blob of PACValidate structure failed");
299
300 torture_assert(tctx, (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR), "not willing to even try a PACValidate without RC4 encryption");
301 creds_arcfour_crypt(creds, pac_wrapped.data, pac_wrapped.length);
302
303 generic.length = pac_wrapped.length;
304 generic.data = pac_wrapped.data;
305
306 logon.generic = &generic;
307
308 ZERO_STRUCT(auth2);
309 creds_client_authenticator(creds, &auth);
310 r.in.credential = &auth;
311 r.in.return_authenticator = &auth2;
312 r.in.logon_level = NetlogonGenericInformation;
313 r.in.logon = &logon;
314 r.in.server_name = talloc_asprintf(tctx, "\\\\%s", dcerpc_server_name(p));
315 r.in.computer_name = cli_credentials_get_workstation(credentials);
316 r.in.validation_level = NetlogonValidationGenericInfo2;
317
318 status = dcerpc_netr_LogonSamLogon(p, tctx, &r);
319
320 torture_assert_ntstatus_equal(tctx, status, NT_STATUS_INVALID_PARAMETER, "LogonSamLogon failed");
321
322 torture_assert(tctx, creds_client_check(creds, &r.out.return_authenticator->cred),
323 "Credential chaining failed");
324 return true;
325 }
326
327 struct torture_suite *torture_rpc_remote_pac(TALLOC_CTX *mem_ctx)
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328 {
329 struct torture_suite *suite = torture_suite_create(mem_ctx, "PAC");
330 struct torture_rpc_tcase *tcase;
331
332 tcase = torture_suite_add_machine_rpc_iface_tcase(suite, "netlogon",
333 &ndr_table_netlogon, TEST_MACHINE_NAME);
334 torture_rpc_tcase_add_test_creds(tcase, "verify", test_PACVerify);
335
336 return suite;
337 }