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samba-mirror/source4/torture/rpc/samlogon.c
2007-10-10 13:18:05 -05:00

1433 lines
40 KiB
C

/*
Unix SMB/CIFS implementation.
test suite for netlogon SamLogon operations
Copyright (C) Andrew Tridgell 2003
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
Copyright (C) Tim Potter 2003
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
#include "librpc/gen_ndr/ndr_netlogon.h"
#include "auth/auth.h"
#include "lib/crypto/crypto.h"
#include "lib/cmdline/popt_common.h"
#define TEST_MACHINE_NAME "samlogontest"
#define TEST_USER_NAME "samlogontestuser"
enum ntlm_break {
BREAK_BOTH,
BREAK_NONE,
BREAK_LM,
BREAK_NT,
NO_LM,
NO_NT
};
struct samlogon_state {
TALLOC_CTX *mem_ctx;
const char *account_name;
const char *account_domain;
const char *password;
struct dcerpc_pipe *p;
int function_level;
struct netr_LogonSamLogon r;
struct netr_LogonSamLogonEx r_ex;
struct netr_LogonSamLogonWithFlags r_flags;
struct netr_Authenticator auth, auth2;
struct creds_CredentialState *creds;
DATA_BLOB chall;
};
/*
Authenticate a user with a challenge/response, checking session key
and valid authentication types
*/
static NTSTATUS check_samlogon(struct samlogon_state *samlogon_state,
enum ntlm_break break_which,
DATA_BLOB *chall,
DATA_BLOB *lm_response,
DATA_BLOB *nt_response,
uint8_t lm_key[8],
uint8_t user_session_key[16],
char **error_string)
{
NTSTATUS status;
struct netr_LogonSamLogon *r = &samlogon_state->r;
struct netr_LogonSamLogonEx *r_ex = &samlogon_state->r_ex;
struct netr_LogonSamLogonWithFlags *r_flags = &samlogon_state->r_flags;
struct netr_NetworkInfo ninfo;
struct netr_SamBaseInfo *base = NULL;
uint16_t validation_level = 0;
samlogon_state->r.in.logon.network = &ninfo;
samlogon_state->r_ex.in.logon.network = &ninfo;
samlogon_state->r_flags.in.logon.network = &ninfo;
ninfo.identity_info.domain_name.string = samlogon_state->account_domain;
ninfo.identity_info.parameter_control = 0;
ninfo.identity_info.logon_id_low = 0;
ninfo.identity_info.logon_id_high = 0;
ninfo.identity_info.account_name.string = samlogon_state->account_name;
ninfo.identity_info.workstation.string = TEST_MACHINE_NAME;
memcpy(ninfo.challenge, chall->data, 8);
switch (break_which) {
case BREAK_NONE:
break;
case BREAK_LM:
if (lm_response && lm_response->data) {
lm_response->data[0]++;
}
break;
case BREAK_NT:
if (nt_response && nt_response->data) {
nt_response->data[0]++;
}
break;
case BREAK_BOTH:
if (lm_response && lm_response->data) {
lm_response->data[0]++;
}
if (nt_response && nt_response->data) {
nt_response->data[0]++;
}
break;
case NO_LM:
data_blob_free(lm_response);
break;
case NO_NT:
data_blob_free(nt_response);
break;
}
if (nt_response) {
ninfo.nt.data = nt_response->data;
ninfo.nt.length = nt_response->length;
} else {
ninfo.nt.data = NULL;
ninfo.nt.length = 0;
}
if (lm_response) {
ninfo.lm.data = lm_response->data;
ninfo.lm.length = lm_response->length;
} else {
ninfo.lm.data = NULL;
ninfo.lm.length = 0;
}
switch (samlogon_state->function_level) {
case DCERPC_NETR_LOGONSAMLOGON:
ZERO_STRUCT(samlogon_state->auth2);
creds_client_authenticator(samlogon_state->creds, &samlogon_state->auth);
r->out.return_authenticator = NULL;
status = dcerpc_netr_LogonSamLogon(samlogon_state->p, samlogon_state->mem_ctx, r);
if (!r->out.return_authenticator ||
!creds_client_check(samlogon_state->creds, &r->out.return_authenticator->cred)) {
printf("Credential chaining failed\n");
}
if (!NT_STATUS_IS_OK(status)) {
if (error_string) {
*error_string = strdup(nt_errstr(status));
}
}
validation_level = r->in.validation_level;
switch (validation_level) {
case 2:
base = &r->out.validation.sam2->base;
break;
case 3:
base = &r->out.validation.sam3->base;
break;
case 6:
base = &r->out.validation.sam6->base;
break;
}
break;
case DCERPC_NETR_LOGONSAMLOGONEX:
status = dcerpc_netr_LogonSamLogonEx(samlogon_state->p, samlogon_state->mem_ctx, r_ex);
if (!NT_STATUS_IS_OK(status)) {
if (error_string) {
*error_string = strdup(nt_errstr(status));
}
}
validation_level = r_ex->in.validation_level;
switch (validation_level) {
case 2:
base = &r_ex->out.validation.sam2->base;
break;
case 3:
base = &r_ex->out.validation.sam3->base;
break;
case 6:
base = &r_ex->out.validation.sam6->base;
break;
}
break;
case DCERPC_NETR_LOGONSAMLOGONWITHFLAGS:
ZERO_STRUCT(samlogon_state->auth2);
creds_client_authenticator(samlogon_state->creds, &samlogon_state->auth);
r_flags->out.return_authenticator = NULL;
status = dcerpc_netr_LogonSamLogonWithFlags(samlogon_state->p, samlogon_state->mem_ctx, r_flags);
if (!r_flags->out.return_authenticator ||
!creds_client_check(samlogon_state->creds, &r_flags->out.return_authenticator->cred)) {
printf("Credential chaining failed\n");
}
if (!NT_STATUS_IS_OK(status)) {
if (error_string) {
*error_string = strdup(nt_errstr(status));
}
}
validation_level = r_flags->in.validation_level;
switch (validation_level) {
case 2:
base = &r_flags->out.validation.sam2->base;
break;
case 3:
base = &r_flags->out.validation.sam3->base;
break;
case 6:
base = &r_flags->out.validation.sam6->base;
break;
}
break;
}
if (!NT_STATUS_IS_OK(status)) {
/* we cannot check the session key, if the logon failed... */
return status;
}
if (!base) {
printf("No user info returned from 'successful' SamLogon*() call!\n");
return NT_STATUS_INVALID_PARAMETER;
}
/* find and decyrpt the session keys, return in parameters above */
if (validation_level == 6) {
/* they aren't encrypted! */
if (user_session_key) {
memcpy(user_session_key, base->key.key, 16);
}
if (lm_key) {
memcpy(lm_key, base->LMSessKey.key, 8);
}
} else if (samlogon_state->creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
static const char zeros[16];
if (memcmp(base->key.key, zeros,
sizeof(base->key.key)) != 0) {
creds_arcfour_crypt(samlogon_state->creds,
base->key.key,
sizeof(base->key.key));
}
if (user_session_key) {
memcpy(user_session_key, base->key.key, 16);
}
if (memcmp(base->LMSessKey.key, zeros,
sizeof(base->LMSessKey.key)) != 0) {
creds_arcfour_crypt(samlogon_state->creds,
base->LMSessKey.key,
sizeof(base->LMSessKey.key));
}
if (lm_key) {
memcpy(lm_key, base->LMSessKey.key, 8);
}
} else {
static const char zeros[16];
if (user_session_key) {
memcpy(user_session_key, base->key.key, 16);
}
if (memcmp(base->LMSessKey.key, zeros,
sizeof(base->LMSessKey.key)) != 0) {
creds_des_decrypt_LMKey(samlogon_state->creds,
&base->LMSessKey);
}
if (lm_key) {
memcpy(lm_key, base->LMSessKey.key, 8);
}
}
return status;
}
/*
* Test the normal 'LM and NTLM' combination
*/
static BOOL test_lm_ntlm_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
{
BOOL pass = True;
BOOL lm_good;
NTSTATUS nt_status;
DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
uint8_t lm_key[8];
uint8_t user_session_key[16];
uint8_t lm_hash[16];
uint8_t nt_hash[16];
ZERO_STRUCT(lm_key);
ZERO_STRUCT(user_session_key);
lm_good = SMBencrypt(samlogon_state->password, samlogon_state->chall.data, lm_response.data);
if (!lm_good) {
ZERO_STRUCT(lm_hash);
} else {
E_deshash(samlogon_state->password, lm_hash);
}
SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
E_md4hash(samlogon_state->password, nt_hash);
SMBsesskeygen_ntv1(nt_hash, session_key.data);
nt_status = check_samlogon(samlogon_state,
break_which,
&samlogon_state->chall,
&lm_response,
&nt_response,
lm_key,
user_session_key,
error_string);
data_blob_free(&lm_response);
if (NT_STATUS_EQUAL(NT_STATUS_WRONG_PASSWORD, nt_status)) {
/* for 'long' passwords, the LM password is invalid */
if (break_which == NO_NT && !lm_good) {
return True;
}
return ((break_which == BREAK_NT) || (break_which == BREAK_BOTH));
}
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
if (break_which == NO_NT && !lm_good) {
printf("LM password is 'long' (> 14 chars and therefore invalid) but login did not fail!");
return False;
}
if (memcmp(lm_hash, lm_key,
sizeof(lm_key)) != 0) {
printf("LM Key does not match expectations!\n");
printf("lm_key:\n");
dump_data(1, lm_key, 8);
printf("expected:\n");
dump_data(1, lm_hash, 8);
pass = False;
}
switch (break_which) {
case NO_NT:
{
uint8_t lm_key_expected[16];
memcpy(lm_key_expected, lm_hash, 8);
memset(lm_key_expected+8, '\0', 8);
if (memcmp(lm_key_expected, user_session_key,
16) != 0) {
printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, sizeof(user_session_key));
printf("expected:\n");
dump_data(1, lm_key_expected, sizeof(lm_key_expected));
pass = False;
}
break;
}
default:
if (memcmp(session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("NT Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, session_key.data, session_key.length);
pass = False;
}
}
return pass;
}
/*
* Test LM authentication, no NT response supplied
*/
static BOOL test_lm(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, NO_NT, error_string);
}
/*
* Test the NTLM response only, no LM.
*/
static BOOL test_ntlm(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, NO_LM, error_string);
}
/*
* Test the NTLM response only, but in the LM field.
*/
static BOOL test_ntlm_in_lm(struct samlogon_state *samlogon_state, char **error_string)
{
BOOL pass = True;
NTSTATUS nt_status;
DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
uint8_t lm_key[8];
uint8_t lm_hash[16];
uint8_t user_session_key[16];
ZERO_STRUCT(user_session_key);
SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
E_deshash(samlogon_state->password, lm_hash);
nt_status = check_samlogon(samlogon_state,
BREAK_NONE,
&samlogon_state->chall,
&nt_response,
NULL,
lm_key,
user_session_key,
error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
if (memcmp(lm_hash, lm_key,
sizeof(lm_key)) != 0) {
printf("LM Key does not match expectations!\n");
printf("lm_key:\n");
dump_data(1, lm_key, 8);
printf("expected:\n");
dump_data(1, lm_hash, 8);
pass = False;
}
if (memcmp(lm_hash, user_session_key, 8) != 0) {
uint8_t lm_key_expected[16];
memcpy(lm_key_expected, lm_hash, 8);
memset(lm_key_expected+8, '\0', 8);
if (memcmp(lm_key_expected, user_session_key,
16) != 0) {
printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, sizeof(user_session_key));
printf("expected:\n");
dump_data(1, lm_key_expected, sizeof(lm_key_expected));
pass = False;
}
}
return pass;
}
/*
* Test the NTLM response only, but in the both the NT and LM fields.
*/
static BOOL test_ntlm_in_both(struct samlogon_state *samlogon_state, char **error_string)
{
BOOL pass = True;
BOOL lm_good;
NTSTATUS nt_status;
DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
DATA_BLOB session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
uint8_t lm_key[8];
uint8_t lm_hash[16];
uint8_t user_session_key[16];
uint8_t nt_hash[16];
ZERO_STRUCT(lm_key);
ZERO_STRUCT(user_session_key);
SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data,
nt_response.data);
E_md4hash(samlogon_state->password, nt_hash);
SMBsesskeygen_ntv1(nt_hash,
session_key.data);
lm_good = E_deshash(samlogon_state->password, lm_hash);
if (!lm_good) {
ZERO_STRUCT(lm_hash);
}
nt_status = check_samlogon(samlogon_state,
BREAK_NONE,
&samlogon_state->chall,
NULL,
&nt_response,
lm_key,
user_session_key,
error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
if (memcmp(lm_hash, lm_key,
sizeof(lm_key)) != 0) {
printf("LM Key does not match expectations!\n");
printf("lm_key:\n");
dump_data(1, lm_key, 8);
printf("expected:\n");
dump_data(1, lm_hash, 8);
pass = False;
}
if (memcmp(session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("NT Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, session_key.data, session_key.length);
pass = False;
}
return pass;
}
/*
* Test the NTLMv2 and LMv2 responses
*/
static BOOL test_lmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
{
BOOL pass = True;
NTSTATUS nt_status;
DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
DATA_BLOB lmv2_response = data_blob(NULL, 0);
DATA_BLOB lmv2_session_key = data_blob(NULL, 0);
DATA_BLOB ntlmv2_session_key = data_blob(NULL, 0);
DATA_BLOB names_blob = NTLMv2_generate_names_blob(samlogon_state->mem_ctx, lp_netbios_name(), lp_workgroup());
uint8_t lm_session_key[8];
uint8_t user_session_key[16];
ZERO_STRUCT(lm_session_key);
ZERO_STRUCT(user_session_key);
/* TODO - test with various domain cases, and without domain */
if (!SMBNTLMv2encrypt(samlogon_state->account_name, samlogon_state->account_domain,
samlogon_state->password, &samlogon_state->chall,
&names_blob,
&lmv2_response, &ntlmv2_response,
&lmv2_session_key, &ntlmv2_session_key)) {
data_blob_free(&names_blob);
return False;
}
data_blob_free(&names_blob);
nt_status = check_samlogon(samlogon_state,
break_which,
&samlogon_state->chall,
&lmv2_response,
&ntlmv2_response,
lm_session_key,
user_session_key,
error_string);
data_blob_free(&lmv2_response);
data_blob_free(&ntlmv2_response);
if (NT_STATUS_EQUAL(nt_status, NT_STATUS_WRONG_PASSWORD)) {
return break_which == BREAK_BOTH;
}
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
switch (break_which) {
case NO_NT:
if (memcmp(lmv2_session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("USER (LMv2) Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, lmv2_session_key.data, ntlmv2_session_key.length);
pass = False;
}
if (memcmp(lmv2_session_key.data, lm_session_key,
sizeof(lm_session_key)) != 0) {
printf("LM (LMv2) Session Key does not match expectations!\n");
printf("lm_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, lmv2_session_key.data, 8);
pass = False;
}
break;
default:
if (memcmp(ntlmv2_session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
if (memcmp(lmv2_session_key.data, user_session_key,
sizeof(user_session_key)) == 0) {
printf("USER (NTLMv2) Session Key expected, got LMv2 sessesion key instead:\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, ntlmv2_session_key.data, ntlmv2_session_key.length);
pass = False;
} else {
printf("USER (NTLMv2) Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, ntlmv2_session_key.data, ntlmv2_session_key.length);
pass = False;
}
}
if (memcmp(ntlmv2_session_key.data, lm_session_key,
sizeof(lm_session_key)) != 0) {
if (memcmp(lmv2_session_key.data, lm_session_key,
sizeof(lm_session_key)) == 0) {
printf("LM (NTLMv2) Session Key expected, got LMv2 sessesion key instead:\n");
printf("user_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, ntlmv2_session_key.data, 8);
pass = False;
} else {
printf("LM (NTLMv2) Session Key does not match expectations!\n");
printf("lm_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, ntlmv2_session_key.data, 8);
pass = False;
}
}
}
return pass;
}
/*
* Test the NTLM and LMv2 responses
*/
static BOOL test_lmv2_ntlm_broken(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
{
BOOL pass = True;
NTSTATUS nt_status;
DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
DATA_BLOB lmv2_response = data_blob(NULL, 0);
DATA_BLOB lmv2_session_key = data_blob(NULL, 0);
DATA_BLOB ntlmv2_session_key = data_blob(NULL, 0);
DATA_BLOB names_blob = NTLMv2_generate_names_blob(samlogon_state->mem_ctx, lp_netbios_name(), lp_workgroup());
DATA_BLOB ntlm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
DATA_BLOB ntlm_session_key = data_blob_talloc(samlogon_state->mem_ctx, NULL, 16);
uint8_t lm_hash[16];
uint8_t lm_session_key[8];
uint8_t user_session_key[16];
uint8_t nt_hash[16];
SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data,
ntlm_response.data);
E_md4hash(samlogon_state->password, nt_hash);
SMBsesskeygen_ntv1(nt_hash,
ntlm_session_key.data);
E_deshash(samlogon_state->password, lm_hash);
ZERO_STRUCT(lm_session_key);
ZERO_STRUCT(user_session_key);
/* TODO - test with various domain cases, and without domain */
if (!SMBNTLMv2encrypt(samlogon_state->account_name, samlogon_state->account_domain,
samlogon_state->password, &samlogon_state->chall,
&names_blob,
&lmv2_response, &ntlmv2_response,
&lmv2_session_key, &ntlmv2_session_key)) {
data_blob_free(&names_blob);
return False;
}
data_blob_free(&names_blob);
nt_status = check_samlogon(samlogon_state,
break_which,
&samlogon_state->chall,
&lmv2_response,
&ntlm_response,
lm_session_key,
user_session_key,
error_string);
data_blob_free(&lmv2_response);
data_blob_free(&ntlmv2_response);
if (NT_STATUS_EQUAL(NT_STATUS_WRONG_PASSWORD, nt_status)) {
return ((break_which == BREAK_NT) || (break_which == BREAK_BOTH));
}
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
switch (break_which) {
case NO_NT:
if (memcmp(lmv2_session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("USER (LMv2) Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, lmv2_session_key.data, ntlmv2_session_key.length);
pass = False;
}
if (memcmp(lmv2_session_key.data, lm_session_key,
sizeof(lm_session_key)) != 0) {
printf("LM (LMv2) Session Key does not match expectations!\n");
printf("lm_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, lmv2_session_key.data, 8);
pass = False;
}
break;
case BREAK_LM:
if (memcmp(ntlm_session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("USER (NTLMv2) Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, ntlm_session_key.data, ntlm_session_key.length);
pass = False;
}
if (memcmp(lm_hash, lm_session_key,
sizeof(lm_session_key)) != 0) {
printf("LM Session Key does not match expectations!\n");
printf("lm_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, lm_hash, 8);
pass = False;
}
break;
default:
if (memcmp(ntlm_session_key.data, user_session_key,
sizeof(user_session_key)) != 0) {
printf("USER (NTLMv2) Session Key does not match expectations!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, 16);
printf("expected:\n");
dump_data(1, ntlm_session_key.data, ntlm_session_key.length);
pass = False;
}
if (memcmp(ntlm_session_key.data, lm_session_key,
sizeof(lm_session_key)) != 0) {
printf("LM (NTLMv2) Session Key does not match expectations!\n");
printf("lm_session_key:\n");
dump_data(1, lm_session_key, 8);
printf("expected:\n");
dump_data(1, ntlm_session_key.data, 8);
pass = False;
}
}
return pass;
}
/*
* Test the NTLMv2 and LMv2 responses
*/
static BOOL test_lmv2_ntlmv2(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NONE, error_string);
}
/*
* Test the LMv2 response only
*/
static BOOL test_lmv2(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, NO_NT, error_string);
}
/*
* Test the NTLMv2 response only
*/
static BOOL test_ntlmv2(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, NO_LM, error_string);
}
static BOOL test_lm_ntlm(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, BREAK_NONE, error_string);
}
static BOOL test_ntlm_lm_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, BREAK_LM, error_string);
}
static BOOL test_ntlm_ntlm_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, BREAK_NT, error_string);
}
static BOOL test_lm_ntlm_both_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lm_ntlm_broken(samlogon_state, BREAK_BOTH, error_string);
}
static BOOL test_ntlmv2_lmv2_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_LM, error_string);
}
static BOOL test_ntlmv2_ntlmv2_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_NT, error_string);
}
static BOOL test_ntlmv2_both_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlmv2_broken(samlogon_state, BREAK_BOTH, error_string);
}
static BOOL test_lmv2_ntlm_both_broken(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlm_broken(samlogon_state, BREAK_BOTH, error_string);
}
static BOOL test_lmv2_ntlm_break_ntlm(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlm_broken(samlogon_state, BREAK_NT, error_string);
}
static BOOL test_lmv2_ntlm_break_lm(struct samlogon_state *samlogon_state, char **error_string)
{
return test_lmv2_ntlm_broken(samlogon_state, BREAK_LM, error_string);
}
/*
* Test the NTLM2 response (extra challenge in LM feild)
*
* This test is the same as the 'break LM' test, but checks that the
* server implements NTLM2 session security in the right place
* (NETLOGON is the wrong place).
*/
static BOOL test_ntlm2(struct samlogon_state *samlogon_state, char **error_string)
{
BOOL pass = True;
NTSTATUS nt_status;
DATA_BLOB lm_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
DATA_BLOB nt_response = data_blob_talloc(samlogon_state->mem_ctx, NULL, 24);
uint8_t lm_key[8];
uint8_t nt_hash[16];
uint8_t lm_hash[16];
uint8_t nt_key[16];
uint8_t user_session_key[16];
uint8_t expected_user_session_key[16];
uint8_t session_nonce_hash[16];
uint8_t client_chall[8];
struct MD5Context md5_session_nonce_ctx;
HMACMD5Context hmac_ctx;
ZERO_STRUCT(user_session_key);
ZERO_STRUCT(lm_key);
generate_random_buffer(client_chall, 8);
MD5Init(&md5_session_nonce_ctx);
MD5Update(&md5_session_nonce_ctx, samlogon_state->chall.data, 8);
MD5Update(&md5_session_nonce_ctx, client_chall, 8);
MD5Final(session_nonce_hash, &md5_session_nonce_ctx);
E_md4hash(samlogon_state->password, (uint8_t *)nt_hash);
E_deshash(samlogon_state->password, (uint8_t *)lm_hash);
SMBsesskeygen_ntv1((const uint8_t *)nt_hash,
nt_key);
SMBNTencrypt(samlogon_state->password, samlogon_state->chall.data, nt_response.data);
memcpy(lm_response.data, session_nonce_hash, 8);
memset(lm_response.data + 8, 0, 16);
hmac_md5_init_rfc2104(nt_key, 16, &hmac_ctx);
hmac_md5_update(samlogon_state->chall.data, 8, &hmac_ctx);
hmac_md5_update(client_chall, 8, &hmac_ctx);
hmac_md5_final(expected_user_session_key, &hmac_ctx);
nt_status = check_samlogon(samlogon_state,
BREAK_NONE,
&samlogon_state->chall,
&lm_response,
&nt_response,
lm_key,
user_session_key,
error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
return False;
}
if (memcmp(lm_hash, lm_key,
sizeof(lm_key)) != 0) {
printf("LM Key does not match expectations!\n");
printf("lm_key:\n");
dump_data(1, lm_key, 8);
printf("expected:\n");
dump_data(1, lm_hash, 8);
pass = False;
}
if (memcmp(nt_key, user_session_key, 16) != 0) {
printf("NT Session Key does not match expectations (should be first-8 LM hash)!\n");
printf("user_session_key:\n");
dump_data(1, user_session_key, sizeof(user_session_key));
printf("expected:\n");
dump_data(1, nt_key, sizeof(nt_key));
pass = False;
}
return pass;
}
static BOOL test_plaintext(struct samlogon_state *samlogon_state, enum ntlm_break break_which, char **error_string)
{
NTSTATUS nt_status;
DATA_BLOB nt_response = data_blob(NULL, 0);
DATA_BLOB lm_response = data_blob(NULL, 0);
char *password;
char *dospw;
void *unicodepw;
uint8_t user_session_key[16];
uint8_t lm_key[16];
static const uint8_t zeros[8];
DATA_BLOB chall = data_blob_talloc(samlogon_state->mem_ctx, zeros, sizeof(zeros));
ZERO_STRUCT(user_session_key);
if ((push_ucs2_talloc(samlogon_state->mem_ctx, &unicodepw,
samlogon_state->password)) == -1) {
DEBUG(0, ("push_ucs2_allocate failed!\n"));
exit(1);
}
nt_response = data_blob_talloc(samlogon_state->mem_ctx, unicodepw, strlen_m(samlogon_state->password)*2);
password = strupper_talloc(samlogon_state->mem_ctx, samlogon_state->password);
if ((convert_string_talloc(samlogon_state->mem_ctx, CH_UNIX,
CH_DOS, password,
strlen(password)+1,
(void**)&dospw)) == -1) {
DEBUG(0, ("convert_string_talloc failed!\n"));
exit(1);
}
lm_response = data_blob_talloc(samlogon_state->mem_ctx, dospw, strlen(dospw));
nt_status = check_samlogon(samlogon_state,
break_which,
&chall,
&lm_response,
&nt_response,
lm_key,
user_session_key,
error_string);
if (!NT_STATUS_IS_OK(nt_status)) {
return break_which == BREAK_NT;
}
return True;
}
static BOOL test_plaintext_none_broken(struct samlogon_state *samlogon_state,
char **error_string) {
return test_plaintext(samlogon_state, BREAK_NONE, error_string);
}
static BOOL test_plaintext_lm_broken(struct samlogon_state *samlogon_state,
char **error_string) {
return test_plaintext(samlogon_state, BREAK_LM, error_string);
}
static BOOL test_plaintext_nt_broken(struct samlogon_state *samlogon_state,
char **error_string) {
return test_plaintext(samlogon_state, BREAK_NT, error_string);
}
static BOOL test_plaintext_nt_only(struct samlogon_state *samlogon_state,
char **error_string) {
return test_plaintext(samlogon_state, NO_LM, error_string);
}
static BOOL test_plaintext_lm_only(struct samlogon_state *samlogon_state,
char **error_string) {
return test_plaintext(samlogon_state, NO_NT, error_string);
}
/*
Tests:
- LM only
- NT and LM
- NT
- NT in LM field
- NT in both fields
- NTLMv2
- NTLMv2 and LMv2
- LMv2
- plaintext tests (in challenge-response fields)
check we get the correct session key in each case
check what values we get for the LM session key
*/
static const struct ntlm_tests {
BOOL (*fn)(struct samlogon_state *, char **);
const char *name;
BOOL expect_fail;
} test_table[] = {
{test_lmv2_ntlmv2, "NTLMv2 and LMv2", False},
{test_lm, "LM", False},
{test_lm_ntlm, "LM and NTLM", False},
{test_lm_ntlm_both_broken, "LM and NTLM, both broken", False},
{test_ntlm, "NTLM", False},
{test_ntlm_in_lm, "NTLM in LM", False},
{test_ntlm_in_both, "NTLM in both", False},
{test_ntlmv2, "NTLMv2", False},
{test_lmv2, "LMv2", False},
{test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken", False},
{test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken", False},
{test_ntlmv2_both_broken, "NTLMv2 and LMv2, both broken", False},
{test_ntlm_lm_broken, "NTLM and LM, LM broken", False},
{test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken", False},
{test_ntlm2, "NTLM2 (NTLMv2 session security)", False},
{test_lmv2_ntlm_both_broken, "LMv2 and NTLM, both broken", False},
{test_lmv2_ntlm_break_ntlm, "LMv2 and NTLM, NTLM broken", False},
{test_lmv2_ntlm_break_lm, "LMv2 and NTLM, LMv2 broken", False},
{test_plaintext_none_broken, "Plaintext", True},
{test_plaintext_lm_broken, "Plaintext LM broken", True},
{test_plaintext_nt_broken, "Plaintext NT broken", True},
{test_plaintext_nt_only, "Plaintext NT only", True},
{test_plaintext_lm_only, "Plaintext LM only", True},
{NULL, NULL}
};
/*
try a netlogon SamLogon
*/
static BOOL test_SamLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
struct creds_CredentialState *creds,
const char *account_domain, const char *account_name,
const char *plain_pass,
int n_subtests)
{
TALLOC_CTX *fn_ctx = talloc_named(mem_ctx, 0, "test_SamLogon function-level context");
int i, v, l, f;
BOOL ret = True;
int validation_levels[] = {2,3,6};
int logon_levels[] = { 2, 6 };
int function_levels[] = {
DCERPC_NETR_LOGONSAMLOGON,
DCERPC_NETR_LOGONSAMLOGONEX,
DCERPC_NETR_LOGONSAMLOGONWITHFLAGS };
struct samlogon_state samlogon_state;
printf("testing netr_LogonSamLogon and netr_LogonSamLogonWithFlags\n");
samlogon_state.account_name = account_name;
samlogon_state.account_domain = account_domain;
samlogon_state.password = plain_pass;
samlogon_state.p = p;
samlogon_state.creds = creds;
samlogon_state.chall = data_blob_talloc(fn_ctx, NULL, 8);
generate_random_buffer(samlogon_state.chall.data, 8);
samlogon_state.r_flags.in.server_name = talloc_asprintf(fn_ctx, "\\\\%s", dcerpc_server_name(p));
samlogon_state.r_flags.in.workstation = TEST_MACHINE_NAME;
samlogon_state.r_flags.in.credential = &samlogon_state.auth;
samlogon_state.r_flags.in.return_authenticator = &samlogon_state.auth2;
samlogon_state.r_flags.in.flags = 0;
samlogon_state.r_ex.in.server_name = talloc_asprintf(fn_ctx, "\\\\%s", dcerpc_server_name(p));
samlogon_state.r_ex.in.workstation = TEST_MACHINE_NAME;
samlogon_state.r_ex.in.flags = 0;
samlogon_state.r.in.server_name = talloc_asprintf(fn_ctx, "\\\\%s", dcerpc_server_name(p));
samlogon_state.r.in.workstation = TEST_MACHINE_NAME;
samlogon_state.r.in.credential = &samlogon_state.auth;
samlogon_state.r.in.return_authenticator = &samlogon_state.auth2;
for (f=0;f<ARRAY_SIZE(function_levels);f++) {
for (i=0; test_table[i].fn; i++) {
if (n_subtests && (i > n_subtests)) {
continue;
}
for (v=0;v<ARRAY_SIZE(validation_levels);v++) {
for (l=0;l<ARRAY_SIZE(logon_levels);l++) {
char *error_string = NULL;
TALLOC_CTX *tmp_ctx = talloc_named(fn_ctx, 0, "test_SamLogon inner loop");
samlogon_state.mem_ctx = tmp_ctx;
samlogon_state.function_level = function_levels[f];
samlogon_state.r.in.validation_level = validation_levels[v];
samlogon_state.r.in.logon_level = logon_levels[l];
samlogon_state.r_ex.in.validation_level = validation_levels[v];
samlogon_state.r_ex.in.logon_level = logon_levels[l];
samlogon_state.r_flags.in.validation_level = validation_levels[v];
samlogon_state.r_flags.in.logon_level = logon_levels[l];
if (!test_table[i].fn(&samlogon_state, &error_string)) {
printf("Testing [%s]\\[%s] '%s' at validation level %d, logon level %d, function %d: \n",
samlogon_state.account_domain,
samlogon_state.account_name,
test_table[i].name, validation_levels[v],
logon_levels[l], function_levels[f]);
if (test_table[i].expect_fail) {
printf(" failed (expected, test incomplete): %s\n", error_string);
} else {
printf(" failed: %s\n", error_string);
ret = False;
}
SAFE_FREE(error_string);
}
talloc_free(tmp_ctx);
}
}
}
}
talloc_free(fn_ctx);
return ret;
}
/*
test an ADS style interactive domain logon
*/
static BOOL test_InteractiveLogon(struct dcerpc_pipe *p, TALLOC_CTX *mem_ctx,
struct creds_CredentialState *creds,
const char *account_domain, const char *account_name,
const char *plain_pass)
{
NTSTATUS status;
TALLOC_CTX *fn_ctx = talloc_named(mem_ctx, 0, "test_InteractiveLogon function-level context");
struct netr_LogonSamLogonWithFlags r;
struct netr_Authenticator a, ra;
struct netr_PasswordInfo pinfo;
ZERO_STRUCT(a);
ZERO_STRUCT(r);
ZERO_STRUCT(ra);
creds_client_authenticator(creds, &a);
r.in.server_name = talloc_asprintf(fn_ctx, "\\\\%s", dcerpc_server_name(p));
r.in.workstation = TEST_MACHINE_NAME;
r.in.credential = &a;
r.in.return_authenticator = &ra;
r.in.logon_level = 5;
r.in.logon.password = &pinfo;
r.in.validation_level = 6;
r.in.flags = 0;
pinfo.identity_info.domain_name.string = account_domain;
pinfo.identity_info.parameter_control = 0;
pinfo.identity_info.logon_id_low = 0;
pinfo.identity_info.logon_id_high = 0;
pinfo.identity_info.account_name.string = account_name;
pinfo.identity_info.workstation.string = TEST_MACHINE_NAME;
E_deshash(plain_pass, pinfo.lmpassword.hash);
E_md4hash(plain_pass, pinfo.ntpassword.hash);
if (creds->negotiate_flags & NETLOGON_NEG_ARCFOUR) {
creds_arcfour_crypt(creds, pinfo.lmpassword.hash, 16);
creds_arcfour_crypt(creds, pinfo.ntpassword.hash, 16);
} else {
creds_des_encrypt(creds, &pinfo.lmpassword);
creds_des_encrypt(creds, &pinfo.ntpassword);
}
printf("Testing netr_LogonSamLogonWithFlags (Interactive Logon)\n");
status = dcerpc_netr_LogonSamLogonWithFlags(p, fn_ctx, &r);
if (!r.out.return_authenticator || !creds_client_check(creds, &r.out.return_authenticator->cred)) {
printf("Credential chaining failed\n");
talloc_free(fn_ctx);
return False;
}
talloc_free(fn_ctx);
if (!NT_STATUS_IS_OK(status)) {
printf("[%s]\\[%s] netr_LogonSamLogonWithFlags - %s\n", account_name, account_domain, nt_errstr(status));
return False;
}
return True;
}
BOOL torture_rpc_samlogon(void)
{
NTSTATUS status;
struct dcerpc_pipe *p;
struct dcerpc_binding *b;
struct cli_credentials *credentials;
TALLOC_CTX *mem_ctx = talloc_init("torture_rpc_netlogon");
BOOL ret = True;
struct test_join *join_ctx;
#if 0
struct test_join *user_ctx;
const char *user_password;
#endif
char *test_machine_account;
const char *machine_password;
const char *binding = lp_parm_string(-1, "torture", "binding");
int i;
int ci;
unsigned int credential_flags[] = {
NETLOGON_NEG_AUTH2_FLAGS,
NETLOGON_NEG_ARCFOUR,
NETLOGON_NEG_ARCFOUR | NETLOGON_NEG_128BIT,
NETLOGON_NEG_AUTH2_ADS_FLAGS,
0 /* yes, this is a valid flag, causes the use of DES */
};
struct creds_CredentialState *creds;
struct {
const char *domain;
const char *username;
const char *password;
BOOL network_login;
} usercreds[] = {
{
cli_credentials_get_domain(cmdline_credentials),
cli_credentials_get_username(cmdline_credentials),
cli_credentials_get_password(cmdline_credentials),
True
},
{
cli_credentials_get_realm(cmdline_credentials),
cli_credentials_get_username(cmdline_credentials),
cli_credentials_get_password(cmdline_credentials),
True
},
{
NULL,
talloc_asprintf(mem_ctx,
"%s@%s",
cli_credentials_get_username(cmdline_credentials),
cli_credentials_get_domain(cmdline_credentials)
),
cli_credentials_get_password(cmdline_credentials),
False
},
{
NULL,
talloc_asprintf(mem_ctx,
"%s@%s",
cli_credentials_get_username(cmdline_credentials),
cli_credentials_get_realm(cmdline_credentials)
),
cli_credentials_get_password(cmdline_credentials),
True
},
#if 0
{
lp_parm_string(-1, "torture", "userdomain"),
TEST_USER_NAME,
NULL,
True
},
{
NULL,
talloc_asprintf(mem_ctx,
"%s@%s",
TEST_USER_NAME,
lp_realm()),
NULL,
True
},
{
NULL,
talloc_asprintf(mem_ctx,
"%s@%s",
TEST_USER_NAME,
lp_parm_string(-1, "torture", "userdomain")),
NULL,
False
}
#endif
};
credentials = cli_credentials_init(mem_ctx);
test_machine_account = talloc_asprintf(mem_ctx, "%s$", TEST_MACHINE_NAME);
/* We only need to join as a workstation here, and in future,
* if we wish to test against trusted domains, we must be a
* workstation here */
join_ctx = torture_create_testuser(test_machine_account, lp_workgroup(), ACB_WSTRUST,
&machine_password);
if (!join_ctx) {
printf("Failed to join as Workstation\n");
return False;
}
#if 0
user_ctx = torture_create_testuser(TEST_USER_NAME,
lp_parm_string(-1, "torture", "userdomain"),
ACB_NORMAL,
&user_password);
if (!user_ctx) {
printf("Failed to join as Workstation\n");
return False;
}
usercreds[3].password = user_password;
usercreds[4].password = user_password;
usercreds[5].password = user_password;
#endif
status = dcerpc_parse_binding(mem_ctx, binding, &b);
if (!NT_STATUS_IS_OK(status)) {
printf("Bad binding string %s\n", binding);
ret = False;
goto failed;
}
/* We have to use schannel, otherwise the SamLogonEx fails
* with INTERNAL_ERROR */
b->flags &= ~DCERPC_AUTH_OPTIONS;
b->flags |= DCERPC_SCHANNEL | DCERPC_SIGN | DCERPC_SCHANNEL_128;
cli_credentials_set_workstation(credentials, TEST_MACHINE_NAME, CRED_SPECIFIED);
cli_credentials_set_domain(credentials, lp_workgroup(), CRED_SPECIFIED);
cli_credentials_set_username(credentials, test_machine_account, CRED_SPECIFIED);
cli_credentials_set_password(credentials, machine_password, CRED_SPECIFIED);
cli_credentials_set_secure_channel_type(credentials,
SEC_CHAN_WKSTA);
status = dcerpc_pipe_connect_b(mem_ctx, &p, b,
DCERPC_NETLOGON_UUID,
DCERPC_NETLOGON_VERSION,
credentials);
if (!NT_STATUS_IS_OK(status)) {
printf("RPC pipe connect as domain member failed: %s\n", nt_errstr(status));
ret = False;
goto failed;
}
status = dcerpc_schannel_creds(p->conn->security_state.generic_state, mem_ctx, &creds);
if (!NT_STATUS_IS_OK(status)) {
ret = False;
goto failed;
}
/* Try all the tests for different username forms */
for (ci = 0; ci < ARRAY_SIZE(usercreds); ci++) {
if (!test_InteractiveLogon(p, mem_ctx, creds,
usercreds[ci].domain,
usercreds[ci].username,
usercreds[ci].password)) {
ret = False;
}
if (usercreds[ci].network_login) {
if (!test_SamLogon(p, mem_ctx, creds,
usercreds[ci].domain,
usercreds[ci].username,
usercreds[ci].password,
0)) {
ret = False;
}
}
}
/* Using the first username form, try the different
* credentials flag setups, on only one of the tests (checks
* session key encryption) */
for (i=0; i < ARRAY_SIZE(credential_flags); i++) {
if (!test_InteractiveLogon(p, mem_ctx, creds,
usercreds[0].domain,
usercreds[0].username,
usercreds[0].password)) {
ret = False;
}
if (usercreds[ci].network_login) {
if (!test_SamLogon(p, mem_ctx, creds,
usercreds[0].domain,
usercreds[0].username,
usercreds[0].password,
1)) {
ret = False;
}
}
}
failed:
talloc_free(mem_ctx);
torture_leave_domain(join_ctx);
#if 0
torture_leave_domain(user_ctx);
#endif
return ret;
}