source4/torture/rpc/samlogon.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    test suite for netlogon SamLogon operations
   5
   6    Copyright (C) Andrew Tridgell 2003
   7    Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
   8    Copyright (C) Tim Potter      2003
   9
  10    This program is free software; you can redistribute it and/or modify
  11    it under the terms of the GNU General Public License as published by
  12    the Free Software Foundation; either version 2 of the License, or
  13    (at your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful,
  16    but WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18    GNU General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 */
  24
  25 #include "includes.h"
  26 #include "librpc/gen_ndr/ndr_netlogon.h"
  27 #include "auth/auth.h"
  28 #include "lib/crypto/crypto.h"
  29
  30 #define TEST_MACHINE_NAME "samlogontest"
  31
  32 enum ntlm_break {
  33         BREAK_BOTH,
  34         BREAK_NONE,
  35         BREAK_LM,
  36         BREAK_NT,
  37         NO_LM,
  38         NO_NT
  39 };
  40
  41 struct samlogon_state {
  42         TALLOC_CTX *mem_ctx;
  43         const char *account_name;
  44         const char *account_domain;
  45         const char *password;
  46         struct dcerpc_pipe *p;
  47         int function_level;
  48         struct netr_LogonSamLogon r;
  49         struct netr_LogonSamLogonWithFlags r_flags;
  50         struct netr_Authenticator auth, auth2;
  51         struct creds_CredentialState *creds;
  52
  53         DATA_BLOB chall;
  54 };
  55
  56 /*
  57    Authenticate a user with a challenge/response, checking session key
  58    and valid authentication types
  59 */
  60 static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
  61                                enum ntlm_break break_which,
  62                                DATA_BLOB *chall,
  63                                DATA_BLOB *lm_response,
  64                                DATA_BLOB *nt_response,
  65                                uint8_t lm_key[8],
  66                                uint8_t user_session_key[16],
  67                                char **error_string)
  68 {
  69         NTSTATUS status;
  70         struct netr_LogonSamLogon *r = &samlogon_state->r;
  71         struct netr_LogonSamLogonWithFlags *r_flags = &samlogon_state->r_flags;
  72         struct netr_NetworkInfo ninfo;
  73
  74         struct netr_SamBaseInfo *base;
  75
  76         uint16 validation_level;
  77
  78         samlogon_state->r.in.logon.network = &ninfo;
  79         samlogon_state->r_flags.in.logon.network = &ninfo;
  80
  81         ninfo.identity_info.domain_name.string = samlogon_state->account_domain;
  82         ninfo.identity_info.parameter_control = 0;
  83         ninfo.identity_info.logon_id_low = 0;
  84         ninfo.identity_info.logon_id_high = 0;
  85         ninfo.identity_info.account_name.string = samlogon_state->account_name;
  86         ninfo.identity_info.workstation.string = TEST_MACHINE_NAME;
  87
  88         memcpy(ninfo.challenge, chall->data, 8);
  89
  90         switch (break_which) {
  91         case BREAK_NONE:
  92                 break;
  93         case BREAK_LM:
  94                 if (lm_response && lm_response->data) {
  95                         lm_response->data[0]++;
  96                 }
  97                 break;
  98         case BREAK_NT:
  99                 if (nt_response && nt_response->data) {
 100                         nt_response->data[0]++;
 101                 }
 102                 break;
 103         case BREAK_BOTH:
 104                 if (lm_response && lm_response->data) {
 105                         lm_response->data[0]++;
 106                 }
 107                 if (nt_response && nt_response->data) {
 108                         nt_response->data[0]++;
 109                 }
 110                 break;
 111         case NO_LM:
 112                 data_blob_free(lm_response);
 113                 break;
 114         case NO_NT:
 115                 data_blob_free(nt_response);
 116                 break;
 117         }
 118
 119         if (nt_response) {
 120                 ninfo.nt.data = nt_response->data;
 121                 ninfo.nt.length = nt_response->length;
 122         } else {
 123                 ninfo.nt.data = NULL;
 124                 ninfo.nt.length = 0;
 125         }
 126
 127         if (lm_response) {
 128                 ninfo.lm.data = lm_response->data;
 129                 ninfo.lm.length = lm_response->length;
 130         } else {
 131                 ninfo.lm.data = NULL;
 132                 ninfo.lm.length = 0;
 133         }
 134
 135         ZERO_STRUCT(samlogon_state->auth2);
 136         creds_client_authenticator(samlogon_state->creds, &samlogon_state->auth);
 137
 138         switch (samlogon_state->function_level) {
 139         case DCERPC_NETR_LOGONSAMLOGON:
 140                 r->out.return_authenticator = NULL;
 141                 status = dcerpc_netr_LogonSamLogon(samlogon_state->p, samlogon_state->mem_ctx, r);
 142                 if (!r->out.return_authenticator ||
 143                     !creds_client_check(samlogon_state->creds, &r->out.return_authenticator->cred)) {
 144                         printf("Credential chaining failed\n");
 145                 }
 146                 if (!NT_STATUS_IS_OK(status)) {
 147                         if (error_string) {
 148                                 *error_string = strdup(nt_errstr(status));
 149                         }
 150                 }
 151
 152                 validation_level = r->in.validation_level;
 153                 switch (validation_level) {
 154                 case 2:
 155                         base = &r->out.validation.sam2->base;
 156                         break;
 157                 case 3:
 158                         base = &r->out.validation.sam3->base;
 159                         break;
 160                 case 6:
 161                         base = &r->out.validation.sam6->base;
 162                         break;
 163                 }
 164                 break;
 165         case DCERPC_NETR_LOGONSAMLOGONWITHFLAGS:
 166                 r_flags->out.return_authenticator = NULL;
 167                 status = dcerpc_netr_LogonSamLogonWithFlags(samlogon_state->p, samlogon_state->mem_ctx, r_flags);
 168                 if (!r_flags->out.return_authenticator ||
 169                     !creds_client_check(samlogon_state->creds, &r_flags->out.return_authenticator->cred)) {
 170                         printf("Credential chaining failed\n");
 171                 }
 172                 if (!NT_STATUS_IS_OK(status)) {
 173                         if (error_string) {
 174                                 *error_string = strdup(nt_errstr(status));
 175                         }
 176                 }
 177
 178                 validation_level = r_flags->in.validation_level;
 179                 switch (validation_level) {
 180                 case 2:
 181                         base = &r_flags->out.validation.sam2->base;
 182                         break;
 183                 case 3:
 184                         base = &r_flags->out.validation.sam3->base;
 185                         break;
 186                 case 6:
 187                         base = &r_flags->out.validation.sam6->base;
 188                         break;
 189                 }
 190                 break;
 191         }
 192
 193
 194         if (!NT_STATUS_IS_OK(status)) {
 195                 /* we cannot check the session key, if the logon failed... */
 196                 return status;
 197         }
 198
 199
 200         /* find and decyrpt the session keys, return in parameters above */
 201         if (validation_level == 6) {
 202                 /* they aren't encrypted! */
 203                 if (user_session_key) {
 204                         memcpy(user_session_key, base->key.key, 16);
 205                 }
 206                 if (lm_key) {
 207                         memcpy(lm_key, base->LMSessKey.key, 8);
 208                 }
 209         } else if (samlogon_state->creds->negotiate_flags) {
 210                 static const char zeros[16];
 211
 212                 if (memcmp(base->key.key, zeros,
 213                            sizeof(base->key.key)) != 0) {
 214                         creds_arcfour_crypt(samlogon_state->creds,
 215                                             base->key.key,
 216                                             sizeof(base->key.key));
 217                 }
 218
 219                 if (user_session_key) {
 220                         memcpy(user_session_key, base->key.key, 16);
 221                 }
 222
 223                 if (memcmp(base->LMSessKey.key, zeros,
 224                            sizeof(base->LMSessKey.key)) != 0) {
 225                         creds_arcfour_crypt(samlogon_state->creds,
 226                                             base->LMSessKey.key,
 227                                             sizeof(base->LMSessKey.key));
 228                 }
 229
 230                 if (lm_key) {
 231                         memcpy(lm_key, base->LMSessKey.key, 8);
 232                 }
 233         } else {
 234                 static const char zeros[16];
 235
 236                 if (user_session_key) {
 237                         memcpy(user_session_key, base->key.key, 16);
 238                 }
 239
 240                 if (memcmp(base->LMSessKey.key, zeros,
 241                            sizeof(base->LMSessKey.key)) != 0) {
 242                         creds_des_decrypt_LMKey(samlogon_state->creds,
 243                                                 &base->LMSessKey);
 244                 }
 245
 246                 if (lm_key) {
 247                         memcpy(lm_key, base->LMSessKey.key, 8);
 248                 }
 249         }
 250
 251         return status;
 252 }
 253
 254
 255 /*
 256  * Test the normal 'LM and NTLM' combination
 257  */
 258
 259 static BOOL test_lm_ntlm_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
 260 {
 261         BOOL pass = True;
 262         BOOL lm_good;
 263         NTSTATUS nt_status;
 264         DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 265         DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 266         DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
 267
 268         uint8_t lm_key[8];
 269         uint8_t user_session_key[16];
 270         uint8_t lm_hash[16];
 271         uint8_t nt_hash[16];
 272
 273         ZERO_STRUCT(lm_key);
 274         ZERO_STRUCT(user_session_key);
 275
 276         lm_good = SMBencrypt(samlogon_state->password, samlogon_state->chall.data, lm_response.data);
 277         if (!lm_good) {
 278                 ZERO_STRUCT(lm_hash);
 279         } else {
 280                 E_deshash(samlogon_state->password, lm_hash);
 281         }
 282
 283         SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
 284
 285         E_md4hash(samlogon_state->password, nt_hash);
 286         SMBsesskeygen_ntv1(nt_hash, session_key.data);
 287
 288         nt_status = check_samlogon(samlogon_state,
 289                                    break_which,
 290                                    &samlogon_state->chall,
 291                                    &lm_response,
 292                                    &nt_response,
 293                                    lm_key,
 294                                    user_session_key,
 295                                    error_string);
 296
 297         data_blob_free(&lm_response);
 298
 299         if (NT_STATUS_EQUAL(NT_STATUS_WRONG_PASSWORD, nt_status)) {
 300                 /* for 'long' passwords, the LM password is invalid */
 301                 if (break_which == NO_NT && !lm_good) {
 302                         return True;
 303                 }
 304                 return ((break_which == BREAK_NT) || (break_which == BREAK_BOTH));
 305         }
 306
 307         if (!NT_STATUS_IS_OK(nt_status)) {
 308                 return False;
 309         }
 310
 311         if (break_which == NO_NT && !lm_good) {
 312                 printf("LM password is 'long' (> 14 chars and therefore invalid) but login did not fail!");
 313                 return False;
 314         }
 315
 316         if (memcmp(lm_hash, lm_key,
 317                    sizeof(lm_key)) != 0) {
 318                 printf("LM Key does not match expectations!\n");
 319                 printf("lm_key:\n");
 320                 dump_data(1, (const char *)lm_key, 8);
 321                 printf("expected:\n");
 322                 dump_data(1, (const char *)lm_hash, 8);
 323                 pass = False;
 324         }
 325
 326         switch (break_which) {
 327         case NO_NT:
 328         {
 329                 char lm_key_expected[16];
 330                 memcpy(lm_key_expected, lm_hash, 8);
 331                 memset(lm_key_expected+8, '\0', 8);
 332                 if (memcmp(lm_key_expected, user_session_key,
 333                            16) != 0) {
 334                         printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
 335                         printf("user_session_key:\n");
 336                         dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
 337                         printf("expected:\n");
 338                         dump_data(1, (const char *)lm_key_expected, sizeof(lm_key_expected));
 339                         pass = False;
 340                 }
 341                 break;
 342         }
 343         default:
 344                 if (memcmp(session_key.data, user_session_key,
 345                            sizeof(user_session_key)) != 0) {
 346                         printf("NT Session Key does not match expectations!\n");
 347                         printf("user_session_key:\n");
 348                         dump_data(1, (const char *)user_session_key, 16);
 349                         printf("expected:\n");
 350                         dump_data(1, (const char *)session_key.data, session_key.length);
 351                         pass = False;
 352                 }
 353         }
 354         return pass;
 355 }
 356
 357 /*
 358  * Test LM authentication, no NT response supplied
 359  */
 360
 361 static BOOL test_lm(struct samlogon_state *samlogon_state, char **error_string)
 362 {
 363
 364         return test_lm_ntlm_broken(samlogon_state, NO_NT, error_string);
 365 }
 366
 367 /*
 368  * Test the NTLM response only, no LM.
 369  */
 370
 371 static BOOL test_ntlm(struct samlogon_state *samlogon_state, char **error_string)
 372 {
 373         return test_lm_ntlm_broken(samlogon_state, NO_LM, error_string);
 374 }
 375
 376 /*
 377  * Test the NTLM response only, but in the LM field.
 378  */
 379
 380 static BOOL test_ntlm_in_lm(struct samlogon_state *samlogon_state, char **error_string)
 381 {
 382         BOOL pass = True;
 383         NTSTATUS nt_status;
 384         DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 385
 386         uint8_t lm_key[8];
 387         uint8_t lm_hash[16];
 388         uint8_t user_session_key[16];
 389
 390         ZERO_STRUCT(user_session_key);
 391
 392         SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
 393
 394         E_deshash(samlogon_state->password, lm_hash);
 395
 396         nt_status = check_samlogon(samlogon_state,
 397                                    BREAK_NONE,
 398                                    &samlogon_state->chall,
 399                                    &nt_response,
 400                                    NULL,
 401                                    lm_key,
 402                                    user_session_key,
 403                                    error_string);
 404
 405         if (!NT_STATUS_IS_OK(nt_status)) {
 406                 return False;
 407         }
 408
 409         if (memcmp(lm_hash, lm_key,
 410                    sizeof(lm_key)) != 0) {
 411                 printf("LM Key does not match expectations!\n");
 412                 printf("lm_key:\n");
 413                 dump_data(1, (const char *)lm_key, 8);
 414                 printf("expected:\n");
 415                 dump_data(1, (const char *)lm_hash, 8);
 416                 pass = False;
 417         }
 418         if (memcmp(lm_hash, user_session_key, 8) != 0) {
 419                 char lm_key_expected[16];
 420                 memcpy(lm_key_expected, lm_hash, 8);
 421                 memset(lm_key_expected+8, '\0', 8);
 422                 if (memcmp(lm_key_expected, user_session_key,
 423                            16) != 0) {
 424                         printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
 425                         printf("user_session_key:\n");
 426                         dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
 427                         printf("expected:\n");
 428                         dump_data(1, (const char *)lm_key_expected, sizeof(lm_key_expected));
 429                         pass = False;
 430                 }
 431         }
 432         return pass;
 433 }
 434
 435 /*
 436  * Test the NTLM response only, but in the both the NT and LM fields.
 437  */
 438
 439 static BOOL test_ntlm_in_both(struct samlogon_state *samlogon_state, char **error_string)
 440 {
 441         BOOL pass = True;
 442         BOOL lm_good;
 443         NTSTATUS nt_status;
 444         DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 445         DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
 446
 447         char lm_key[8];
 448         char lm_hash[16];
 449         char user_session_key[16];
 450         char nt_hash[16];
 451
 452         ZERO_STRUCT(lm_key);
 453         ZERO_STRUCT(user_session_key);
 454
 455         SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data,
 456                      nt_response.data);
 457         E_md4hash(samlogon_state->password, (uint8_t *)nt_hash);
 458         SMBsesskeygen_ntv1((const uint8_t *)nt_hash,
 459                            session_key.data);
 460
 461         lm_good = E_deshash(samlogon_state->password, (uint8_t *)lm_hash);
 462         if (!lm_good) {
 463                 ZERO_STRUCT(lm_hash);
 464         }
 465
 466         nt_status = check_samlogon(samlogon_state,
 467                                    BREAK_NONE,
 468                                    &samlogon_state->chall,
 469                                    NULL,
 470                                    &nt_response,
 471                                    lm_key,
 472                                    user_session_key,
 473                                    error_string);
 474
 475         if (!NT_STATUS_IS_OK(nt_status)) {
 476                 return False;
 477         }
 478
 479         if (memcmp(lm_hash, lm_key,
 480                    sizeof(lm_key)) != 0) {
 481                 printf("LM Key does not match expectations!\n");
 482                 printf("lm_key:\n");
 483                 dump_data(1, lm_key, 8);
 484                 printf("expected:\n");
 485                 dump_data(1, lm_hash, 8);
 486                 pass = False;
 487         }
 488         if (memcmp(session_key.data, user_session_key,
 489                    sizeof(user_session_key)) != 0) {
 490                 printf("NT Session Key does not match expectations!\n");
 491                 printf("user_session_key:\n");
 492                 dump_data(1, user_session_key, 16);
 493                 printf("expected:\n");
 494                 dump_data(1, (const char *)session_key.data, session_key.length);
 495                 pass = False;
 496         }
 497
 498
 499         return pass;
 500 }
 501
 502 /*
 503  * Test the NTLMv2 and LMv2 responses
 504  */
 505
 506 static BOOL test_lmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
 507 {
 508         BOOL pass = True;
 509         NTSTATUS nt_status;
 510         DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
 511         DATA_BLOB lmv2_response = data_blob(NULL, 0);
 512         DATA_BLOB lmv2_session_key = data_blob(NULL, 0);
 513         DATA_BLOB ntlmv2_session_key = data_blob(NULL, 0);
 514         DATA_BLOB names_blob = NTLMv2_generate_names_blob(samlogon_state->mem_ctx, lp_netbios_name(), lp_workgroup());
 515
 516         uint8_t lm_session_key[8];
 517         uint8_t user_session_key[16];
 518
 519         ZERO_STRUCT(lm_session_key);
 520         ZERO_STRUCT(user_session_key);
 521
 522         /* TODO - test with various domain cases, and without domain */
 523         if (!SMBNTLMv2encrypt(samlogon_state->account_name, samlogon_state->account_domain,
 524                               samlogon_state->password, &samlogon_state->chall,
 525                               &names_blob,
 526                               &lmv2_response, &ntlmv2_response,
 527                               &lmv2_session_key, &ntlmv2_session_key)) {
 528                 data_blob_free(&names_blob);
 529                 return False;
 530         }
 531         data_blob_free(&names_blob);
 532
 533         nt_status = check_samlogon(samlogon_state,
 534                                    break_which,
 535                                    &samlogon_state->chall,
 536                                    &lmv2_response,
 537                                    &ntlmv2_response,
 538                                    lm_session_key,
 539                                    user_session_key,
 540                                    error_string);
 541
 542         data_blob_free(&lmv2_response);
 543         data_blob_free(&ntlmv2_response);
 544
 545
 546         if (NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD)) {
 547                 return break_which == BREAK_BOTH;
 548         }
 549
 550         switch (break_which) {
 551         case NO_NT:
 552                 if (memcmp(lmv2_session_key.data, user_session_key,
 553                            sizeof(user_session_key)) != 0) {
 554                         printf("USER (LMv2) Session Key does not match expectations!\n");
 555                         printf("user_session_key:\n");
 556                         dump_data(1, (const char *)user_session_key, 16);
 557                         printf("expected:\n");
 558                         dump_data(1, (const char *)lmv2_session_key.data, ntlmv2_session_key.length);
 559                         pass = False;
 560                 }
 561                 if (memcmp(lmv2_session_key.data, lm_session_key,
 562                            sizeof(lm_session_key)) != 0) {
 563                         printf("LM (LMv2) Session Key does not match expectations!\n");
 564                         printf("lm_session_key:\n");
 565                         dump_data(1, (const char *)lm_session_key, 8);
 566                         printf("expected:\n");
 567                         dump_data(1, (const char *)lmv2_session_key.data, 8);
 568                         pass = False;
 569                 }
 570                 break;
 571         default:
 572                 if (memcmp(ntlmv2_session_key.data, user_session_key,
 573                            sizeof(user_session_key)) != 0) {
 574                         printf("USER (NTLMv2) Session Key does not match expectations!\n");
 575                         printf("user_session_key:\n");
 576                         dump_data(1, (const char *)user_session_key, 16);
 577                         printf("expected:\n");
 578                         dump_data(1, (const char *)ntlmv2_session_key.data, ntlmv2_session_key.length);
 579                         pass = False;
 580                 }
 581                 if (memcmp(ntlmv2_session_key.data, lm_session_key,
 582                            sizeof(lm_session_key)) != 0) {
 583                         printf("LM (NTLMv2) Session Key does not match expectations!\n");
 584                         printf("lm_session_key:\n");
 585                         dump_data(1, (const char *)lm_session_key, 8);
 586                         printf("expected:\n");
 587                         dump_data(1, (const char *)ntlmv2_session_key.data, 8);
 588                         pass = False;
 589                 }
 590         }
 591
 592         return pass;
 593 }
 594
 595 /*
 596  * Test the NTLMv2 and LMv2 responses
 597  */
 598
 599 static BOOL test_lmv2_ntlmv2(struct samlogon_state *samlogon_state, char **error_string)
 600 {
 601         return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NONE, error_string);
 602 }
 603
 604 /*
 605  * Test the LMv2 response only
 606  */
 607
 608 static BOOL test_lmv2(struct samlogon_state *samlogon_state, char **error_string)
 609 {
 610         return test_lmv2_ntlmv2_broken(samlogon_state, NO_NT, error_string);
 611 }
 612
 613 /*
 614  * Test the NTLMv2 response only
 615  */
 616
 617 static BOOL test_ntlmv2(struct samlogon_state *samlogon_state, char **error_string)
 618 {
 619         return test_lmv2_ntlmv2_broken(samlogon_state, NO_LM, error_string);
 620 }
 621
 622 static BOOL test_lm_ntlm(struct samlogon_state *samlogon_state, char **error_string)
 623 {
 624         return test_lm_ntlm_broken(samlogon_state, BREAK_NONE, error_string);
 625 }
 626
 627 static BOOL test_ntlm_lm_broken(struct samlogon_state *samlogon_state, char **error_string)
 628 {
 629         return test_lm_ntlm_broken(samlogon_state, BREAK_LM, error_string);
 630 }
 631
 632 static BOOL test_ntlm_ntlm_broken(struct samlogon_state *samlogon_state, char **error_string)
 633 {
 634         return test_lm_ntlm_broken(samlogon_state, BREAK_NT, error_string);
 635 }
 636
 637 static BOOL test_lm_ntlm_both_broken(struct samlogon_state *samlogon_state, char **error_string)
 638 {
 639         return test_lm_ntlm_broken(samlogon_state, BREAK_BOTH, error_string);
 640 }
 641 static BOOL test_ntlmv2_lmv2_broken(struct samlogon_state *samlogon_state, char **error_string)
 642 {
 643         return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_LM, error_string);
 644 }
 645
 646 static BOOL test_ntlmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, char **error_string)
 647 {
 648         return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NT, error_string);
 649 }
 650
 651 static BOOL test_ntlmv2_both_broken(struct samlogon_state *samlogon_state, char **error_string)
 652 {
 653         return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_BOTH, error_string);
 654 }
 655
 656 /*
 657  * Test the NTLM2 response (extra challenge in LM feild)
 658  *
 659  * This test is the same as the 'break LM' test, but checks that the
 660  * server implements NTLM2 session security in the right place
 661  * (NETLOGON is the wrong place).
 662  */
 663
 664 static BOOL test_ntlm2(struct samlogon_state *samlogon_state, char **error_string)
 665 {
 666         BOOL pass = True;
 667         NTSTATUS nt_status;
 668         DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 669         DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
 670
 671         uint8_t lm_key[8];
 672         uint8_t nt_hash[16];
 673         uint8_t lm_hash[16];
 674         uint8_t nt_key[16];
 675         uint8_t user_session_key[16];
 676         uint8_t expected_user_session_key[16];
 677         uint8_t session_nonce_hash[16];
 678         uint8_t client_chall[8];
 679
 680         struct MD5Context md5_session_nonce_ctx;
 681         HMACMD5Context hmac_ctx;
 682
 683         ZERO_STRUCT(user_session_key);
 684         ZERO_STRUCT(lm_key);
 685         generate_random_buffer(client_chall, 8);
 686
 687         MD5Init(&md5_session_nonce_ctx);
 688         MD5Update(&md5_session_nonce_ctx, samlogon_state->chall.data, 8);
 689         MD5Update(&md5_session_nonce_ctx, client_chall, 8);
 690         MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
 691
 692         E_md4hash(samlogon_state->password, (uint8_t *)nt_hash);
 693         E_deshash(samlogon_state->password, (uint8_t *)lm_hash);
 694         SMBsesskeygen_ntv1((const uint8_t *)nt_hash,
 695                            nt_key);
 696
 697         SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
 698
 699         memcpy(lm_response.data, session_nonce_hash, 8);
 700         memset(lm_response.data + 8, 0, 16);
 701
 702         hmac_md5_init_rfc2104(nt_key, 16, &hmac_ctx);
 703         hmac_md5_update(samlogon_state->chall.data, 8, &hmac_ctx);
 704         hmac_md5_update(client_chall, 8, &hmac_ctx);
 705         hmac_md5_final(expected_user_session_key, &hmac_ctx);
 706
 707         nt_status = check_samlogon(samlogon_state,
 708                                    BREAK_NONE,
 709                                    &samlogon_state->chall,
 710                                    &lm_response,
 711                                    &nt_response,
 712                                    lm_key,
 713                                    user_session_key,
 714                                    error_string);
 715
 716         if (!NT_STATUS_IS_OK(nt_status)) {
 717                 return False;
 718         }
 719
 720         if (memcmp(lm_hash, lm_key,
 721                    sizeof(lm_key)) != 0) {
 722                 printf("LM Key does not match expectations!\n");
 723                 printf("lm_key:\n");
 724                 dump_data(1, (const char *)lm_key, 8);
 725                 printf("expected:\n");
 726                 dump_data(1, (const char *)lm_hash, 8);
 727                 pass = False;
 728         }
 729         if (memcmp(nt_key, user_session_key, 16) != 0) {
 730                 printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
 731                 printf("user_session_key:\n");
 732                 dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
 733                 printf("expected:\n");
 734                 dump_data(1, (const char *)nt_key, sizeof(nt_key));
 735                 pass = False;
 736         }
 737         return pass;
 738 }
 739
 740 static BOOL test_plaintext(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
 741 {
 742         NTSTATUS nt_status;
 743         DATA_BLOB nt_response = data_blob(NULL, 0);
 744         DATA_BLOB lm_response = data_blob(NULL, 0);
 745         char *password;
 746         char *dospw;
 747         void *unicodepw;
 748
 749         uint8_t user_session_key[16];
 750         uint8_t lm_key[16];
 751         static const uint8_t zeros[8];
 752         DATA_BLOB chall = data_blob_talloc(samlogon_state->mem_ctx, zeros, sizeof(zeros));
 753
 754         ZERO_STRUCT(user_session_key);
 755
 756         if ((push_ucs2_talloc(samlogon_state->mem_ctx, &unicodepw,
 757                               samlogon_state->password)) == -1) {
 758                 DEBUG(0, ("push_ucs2_allocate failed!\n"));
 759                 exit(1);
 760         }
 761
 762         nt_response = data_blob_talloc(samlogon_state->mem_ctx, unicodepw, strlen_m(samlogon_state->password)*2);
 763
 764         password = strupper_talloc(samlogon_state->mem_ctx, samlogon_state->password);
 765
 766         if ((convert_string_talloc(samlogon_state->mem_ctx, CH_UNIX,
 767                                    CH_DOS, password,
 768                                    strlen(password)+1,
 769                                    (void**)&dospw)) == -1) {
 770                 DEBUG(0, ("convert_string_talloc failed!\n"));
 771                 exit(1);
 772         }
 773
 774         lm_response = data_blob_talloc(samlogon_state->mem_ctx, dospw, strlen(dospw));
 775
 776         nt_status = check_samlogon(samlogon_state,
 777                                    break_which,
 778                                    &chall,
 779                                    &lm_response,
 780                                    &nt_response,
 781                                    lm_key,
 782                                    user_session_key,
 783                                    error_string);
 784
 785         if (!NT_STATUS_IS_OK(nt_status)) {
 786                 return break_which == BREAK_NT;
 787         }
 788
 789         return True;
 790 }
 791
 792 static BOOL test_plaintext_none_broken(struct samlogon_state *samlogon_state,
 793                                        char **error_string) {
 794         return test_plaintext(samlogon_state, BREAK_NONE, error_string);
 795 }
 796
 797 static BOOL test_plaintext_lm_broken(struct samlogon_state *samlogon_state,
 798                                      char **error_string) {
 799         return test_plaintext(samlogon_state, BREAK_LM, error_string);
 800 }
 801
 802 static BOOL test_plaintext_nt_broken(struct samlogon_state *samlogon_state,
 803                                      char **error_string) {
 804         return test_plaintext(samlogon_state, BREAK_NT, error_string);
 805 }
 806
 807 static BOOL test_plaintext_nt_only(struct samlogon_state *samlogon_state,
 808                                    char **error_string) {
 809         return test_plaintext(samlogon_state, NO_LM, error_string);
 810 }
 811
 812 static BOOL test_plaintext_lm_only(struct samlogon_state *samlogon_state,
 813                                    char **error_string) {
 814         return test_plaintext(samlogon_state, NO_NT, error_string);
 815 }
 816
 817 /*
 818    Tests:
 819
 820    - LM only
 821    - NT and LM
 822    - NT
 823    - NT in LM field
 824    - NT in both fields
 825    - NTLMv2
 826    - NTLMv2 and LMv2
 827    - LMv2
 828    - plaintext tests (in challenge-response fields)
 829
 830    check we get the correct session key in each case
 831    check what values we get for the LM session key
 832
 833 */
 834
 835 static const struct ntlm_tests {
 836         BOOL (*fn)(struct samlogon_state *, char **);
 837         const char *name;
 838         BOOL expect_fail;
 839 } test_table[] = {
 840         {test_lm, "LM", False},
 841         {test_lm_ntlm, "LM and NTLM", False},
 842         {test_lm_ntlm_both_broken, "LM and NTLM, both broken", False},
 843         {test_ntlm, "NTLM", False},
 844         {test_ntlm_in_lm, "NTLM in LM", False},
 845         {test_ntlm_in_both, "NTLM in both", False},
 846         {test_ntlmv2, "NTLMv2", False},
 847         {test_lmv2_ntlmv2, "NTLMv2 and LMv2", False},
 848         {test_lmv2, "LMv2", False},
 849         {test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken", False},
 850         {test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken", False},
 851         {test_ntlmv2_both_broken, "NTLMv2 and LMv2, both broken", False},
 852         {test_ntlm_lm_broken, "NTLM and LM, LM broken", False},
 853         {test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken", False},
 854         {test_ntlm2, "NTLM2 (NTLMv2 session security)", False},
 855         {test_plaintext_none_broken, "Plaintext", True},
 856         {test_plaintext_lm_broken, "Plaintext LM broken", True},
 857         {test_plaintext_nt_broken, "Plaintext NT broken", True},
 858         {test_plaintext_nt_only, "Plaintext NT only", True},
 859         {test_plaintext_lm_only, "Plaintext LM only", True},
 860         {NULL, NULL}
 861 };
 862
 863 /*
 864   try a netlogon SamLogon
 865 */
 866 static BOOL test_SamLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
 867                           struct creds_CredentialState *creds)
 868 {
 869         int i, v, l, f;
 870         BOOL ret = True;
 871         int validation_levels[] = {2,3,6};
 872         int logon_levels[] = { 2, 6 };
 873         int function_levels[] = {
 874                 DCERPC_NETR_LOGONSAMLOGON,
 875                 DCERPC_NETR_LOGONSAMLOGONWITHFLAGS };
 876         struct samlogon_state samlogon_state;
 877
 878         printf("testing netr_LogonSamLogon and netr_LogonSamLogonWithFlags\n");
 879
 880         samlogon_state.mem_ctx = mem_ctx;
 881         samlogon_state.account_name = lp_parm_string(-1, "torture", "username");
 882         samlogon_state.account_domain = lp_parm_string(-1, "torture", "userdomain");
 883         samlogon_state.password = lp_parm_string(-1, "torture", "password");
 884         samlogon_state.p = p;
 885         samlogon_state.creds = creds;
 886
 887         samlogon_state.chall = data_blob_talloc(mem_ctx, NULL, 8);
 888
 889         generate_random_buffer(samlogon_state.chall.data, 8);
 890         samlogon_state.r_flags.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
 891         samlogon_state.r_flags.in.workstation = TEST_MACHINE_NAME;
 892         samlogon_state.r_flags.in.credential = &samlogon_state.auth;
 893         samlogon_state.r_flags.in.return_authenticator = &samlogon_state.auth2;
 894         samlogon_state.r_flags.in.flags = 0;
 895
 896         samlogon_state.r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
 897         samlogon_state.r.in.workstation = TEST_MACHINE_NAME;
 898         samlogon_state.r.in.credential = &samlogon_state.auth;
 899         samlogon_state.r.in.return_authenticator = &samlogon_state.auth2;
 900
 901         for (i=0; test_table[i].fn; i++) {
 902                 for (v=0;v<ARRAY_SIZE(validation_levels);v++) {
 903                         for (l=0;l<ARRAY_SIZE(logon_levels);l++) {
 904                                 for (f=0;f<ARRAY_SIZE(function_levels);f++) {
 905                                         char *error_string = NULL;
 906                                         samlogon_state.function_level = function_levels[f];
 907                                         samlogon_state.r.in.validation_level = validation_levels[v];
 908                                         samlogon_state.r.in.logon_level = logon_levels[l];
 909                                         samlogon_state.r_flags.in.validation_level = validation_levels[v];
 910                                         samlogon_state.r_flags.in.logon_level = logon_levels[l];
 911                                         if (!test_table[i].fn(&samlogon_state, &error_string)) {
 912                                                 printf("Testing '%s' at validation level %d, logon level %d, function %d: \n",
 913                                                        test_table[i].name, validation_levels[v],
 914                                                        logon_levels[l], function_levels[f]);
 915
 916                                                 if (test_table[i].expect_fail) {
 917                                                         printf(" failed (expected, test incomplete): %s\n", error_string);
 918                                                 } else {
 919                                                         printf(" failed: %s\n", error_string);
 920                                                         ret = False;
 921                                                 }
 922                                                 SAFE_FREE(error_string);
 923                                         }
 924                                 }
 925                         }
 926                 }
 927         }
 928
 929         return ret;
 930 }
 931
 932 /*
 933   test an ADS style interactive domain logon
 934 */
 935 static BOOL test_InteractiveLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
 936                                   struct creds_CredentialState *creds)
 937 {
 938         NTSTATUS status;
 939         struct netr_LogonSamLogonWithFlags r;
 940         struct netr_Authenticator a, ra;
 941         struct netr_PasswordInfo pinfo;
 942         const char *plain_pass;
 943
 944         ZERO_STRUCT(a);
 945         ZERO_STRUCT(r);
 946         ZERO_STRUCT(ra);
 947
 948         creds_client_authenticator(creds, &a);
 949
 950         r.in.server_name = talloc_asprintf(mem_ctx, "\\\\%s", dcerpc_server_name(p));
 951         r.in.workstation = TEST_MACHINE_NAME;
 952         r.in.credential = &a;
 953         r.in.return_authenticator = &ra;
 954         r.in.logon_level = 5;
 955         r.in.logon.password = &pinfo;
 956         r.in.validation_level = 6;
 957         r.in.flags = 0;
 958
 959         pinfo.identity_info.domain_name.string = lp_parm_string(-1, "torture", "userdomain");
 960         pinfo.identity_info.parameter_control = 0;
 961         pinfo.identity_info.logon_id_low = 0;
 962         pinfo.identity_info.logon_id_high = 0;
 963         pinfo.identity_info.account_name.string = lp_parm_string(-1, "torture", "username");
 964         pinfo.identity_info.workstation.string = TEST_MACHINE_NAME;
 965
 966         plain_pass = lp_parm_string(-1, "torture", "password");
 967
 968         E_deshash(plain_pass, pinfo.lmpassword.hash);
 969         E_md4hash(plain_pass, pinfo.ntpassword.hash);
 970
 971         if (creds->negotiate_flags) {
 972                 creds_arcfour_crypt(creds, pinfo.lmpassword.hash, 16);
 973                 creds_arcfour_crypt(creds, pinfo.ntpassword.hash, 16);
 974         } else {
 975                 creds_des_encrypt(creds, &pinfo.lmpassword);
 976                 creds_des_encrypt(creds, &pinfo.ntpassword);
 977         }
 978
 979         printf("Testing netr_LogonSamLogonWithFlags\n");
 980
 981         status = dcerpc_netr_LogonSamLogonWithFlags(p, mem_ctx, &r);
 982         if (!NT_STATUS_IS_OK(status)) {
 983                 printf("netr_LogonSamLogonWithFlags - %s\n", nt_errstr(status));
 984                 return False;
 985         }
 986
 987         if (!creds_client_check(creds, &r.out.return_authenticator->cred)) {
 988                 printf("Credential chaining failed\n");
 989                 return False;
 990         }
 991
 992         return True;
 993 }
 994
 995
 996
 997 BOOL torture_rpc_samlogon(void)
 998 {
 999         NTSTATUS status;
1000         struct dcerpc_pipe *p;
1001         TALLOC_CTX *mem_ctx;
1002         BOOL ret = True;
1003         void *join_ctx;
1004         const char *machine_pass;
1005
1006         struct creds_CredentialState creds;
1007
1008         mem_ctx = talloc_init("torture_rpc_netlogon");
1009
1010         join_ctx = torture_join_domain(TEST_MACHINE_NAME, lp_workgroup(), ACB_SVRTRUST,
1011                                        &machine_pass);
1012         if (!join_ctx) {
1013                 printf("Failed to join as BDC\n");
1014                 return False;
1015         }
1016
1017         status = torture_rpc_connection(&p,
1018                                         DCERPC_NETLOGON_NAME,
1019                                         DCERPC_NETLOGON_UUID,
1020                                         DCERPC_NETLOGON_VERSION);
1021         if (!NT_STATUS_IS_OK(status)) {
1022                 return False;
1023         }
1024
1025
1026         if (!test_SetupCredentials(p, mem_ctx,
1027                                     TEST_MACHINE_NAME, machine_pass, &creds)) {
1028                 ret = False;
1029         }
1030
1031         if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
1032                 ret = False;
1033         }
1034
1035         if (!test_SamLogon(p, mem_ctx, &creds)) {
1036                 ret = False;
1037         }
1038
1039         if (!test_SetupCredentials2(p, mem_ctx, NETLOGON_NEG_AUTH2_FLAGS,
1040                                     TEST_MACHINE_NAME, machine_pass, &creds)) {
1041                 return False;
1042         }
1043
1044         if (!test_SamLogon(p, mem_ctx, &creds)) {
1045                 ret = False;
1046         }
1047
1048         if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
1049                 ret = False;
1050         }
1051
1052         if (!test_SetupCredentials3(p, mem_ctx, NETLOGON_NEG_AUTH2_FLAGS,
1053                                     TEST_MACHINE_NAME, machine_pass, &creds)) {
1054                 return False;
1055         }
1056
1057         if (!test_SamLogon(p, mem_ctx, &creds)) {
1058                 ret = False;
1059         }
1060
1061         if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
1062                 ret = False;
1063         }
1064
1065         if (!test_SetupCredentials3(p, mem_ctx, NETLOGON_NEG_AUTH2_ADS_FLAGS,
1066                                     TEST_MACHINE_NAME, machine_pass, &creds)) {
1067                 return False;
1068         }
1069
1070         if (!test_SamLogon(p, mem_ctx, &creds)) {
1071                 ret = False;
1072         }
1073
1074         if (!test_InteractiveLogon(p, mem_ctx, &creds)) {
1075                 ret = False;
1076         }
1077
1078         talloc_destroy(mem_ctx);
1079
1080         torture_rpc_close(p);
1081
1082         torture_leave_domain(join_ctx);
1083
1084         return ret;
1085 }