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|
/*
* Unit tests for the ntlm_check password hash check library.
*
* Copyright (C) Andrew Bartlett <abartlet@samba.org> 2018
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*
*/
/*
* from cmocka.c:
* These headers or their equivalents should be included prior to
* including
* this header file.
*
* #include <stdarg.h>
* #include <stddef.h>
* #include <setjmp.h>
*
* This allows test applications to use custom definitions of C standard
* library functions and types.
*
*/
/*
* Note that the messaging routines (audit_message_send and get_event_server)
* are not tested by these unit tests. Currently they are for integration
* test support, and as such are exercised by the integration tests.
*/
#include <stdarg.h>
#include <stddef.h>
#include <setjmp.h>
#include <cmocka.h>
#include "includes.h"
#include "../lib/crypto/crypto.h"
#include "librpc/gen_ndr/netlogon.h"
#include "libcli/auth/libcli_auth.h"
#include "auth/credentials/credentials.h"
struct ntlm_state {
const char *username;
const char *domain;
DATA_BLOB challenge;
DATA_BLOB ntlm;
DATA_BLOB lm;
DATA_BLOB ntlm_key;
DATA_BLOB lm_key;
const struct samr_Password *nt_hash;
};
static int test_ntlm_setup_with_options(void **state,
int flags, bool upn)
{
NTSTATUS status;
DATA_BLOB challenge = {
.data = discard_const_p(uint8_t, "I am a teapot"),
.length = 8
};
struct ntlm_state *ntlm_state = talloc(NULL, struct ntlm_state);
DATA_BLOB target_info = NTLMv2_generate_names_blob(ntlm_state,
NULL,
"serverdom");
struct cli_credentials *creds = cli_credentials_init(ntlm_state);
cli_credentials_set_username(creds,
"testuser",
CRED_SPECIFIED);
cli_credentials_set_domain(creds,
"testdom",
CRED_SPECIFIED);
cli_credentials_set_workstation(creds,
"testwksta",
CRED_SPECIFIED);
cli_credentials_set_password(creds,
"testpass",
CRED_SPECIFIED);
if (upn) {
cli_credentials_set_principal(creds,
"testuser@samba.org",
CRED_SPECIFIED);
}
cli_credentials_get_ntlm_username_domain(creds,
ntlm_state,
&ntlm_state->username,
&ntlm_state->domain);
status = cli_credentials_get_ntlm_response(creds,
ntlm_state,
&flags,
challenge,
NULL,
target_info,
&ntlm_state->lm,
&ntlm_state->ntlm,
&ntlm_state->lm_key,
&ntlm_state->ntlm_key);
ntlm_state->challenge = challenge;
ntlm_state->nt_hash = cli_credentials_get_nt_hash(creds,
ntlm_state);
if (!NT_STATUS_IS_OK(status)) {
return -1;
}
*state = ntlm_state;
return 0;
}
static int test_ntlm_setup(void **state) {
return test_ntlm_setup_with_options(state, 0, false);
}
static int test_ntlm_and_lm_setup(void **state) {
return test_ntlm_setup_with_options(state,
CLI_CRED_LANMAN_AUTH,
false);
}
static int test_ntlm2_setup(void **state) {
return test_ntlm_setup_with_options(state,
CLI_CRED_NTLM2,
false);
}
static int test_ntlmv2_setup(void **state) {
return test_ntlm_setup_with_options(state,
CLI_CRED_NTLMv2_AUTH,
false);
}
static int test_ntlm_teardown(void **state)
{
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
TALLOC_FREE(ntlm_state);
*state = NULL;
return 0;
}
static void test_ntlm_allowed(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_ON,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status), NT_STATUS_V(NT_STATUS_OK));
}
static void test_ntlm_allowed_lm_supplied(void **state)
{
return test_ntlm_allowed(state);
}
static void test_ntlm_disabled(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_DISABLED,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status), NT_STATUS_V(NT_STATUS_NTLM_BLOCKED));
}
static void test_ntlm2(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_ON,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
/*
* NTLM2 session security (where the real challenge is the
* MD5(challenge, client-challenge) (in the first 8 bytes of
* the lm) isn't decoded by ntlm_password_check(), it must
* first be converted back into normal NTLM by the NTLMSSP
* layer
*/
assert_int_equal(NT_STATUS_V(status),
NT_STATUS_V(NT_STATUS_WRONG_PASSWORD));
}
static void test_ntlm_mschapv2_only_allowed(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_MSCHAPv2_NTLMV2_ONLY,
MSV1_0_ALLOW_MSVCHAPV2,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status), NT_STATUS_V(NT_STATUS_OK));
}
static void test_ntlm_mschapv2_only_denied(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_MSCHAPv2_NTLMV2_ONLY,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status),
NT_STATUS_V(NT_STATUS_WRONG_PASSWORD));
}
static void test_ntlmv2_only_ntlmv2(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_NTLMV2_ONLY,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status), NT_STATUS_V(NT_STATUS_OK));
}
static void test_ntlmv2_only_ntlm(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_NTLMV2_ONLY,
0,
&ntlm_state->challenge,
&ntlm_state->lm,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status),
NT_STATUS_V(NT_STATUS_WRONG_PASSWORD));
}
static void test_ntlmv2_only_ntlm_and_lanman(void **state)
{
return test_ntlmv2_only_ntlm(state);
}
static void test_ntlmv2_only_ntlm_once(void **state)
{
DATA_BLOB user_sess_key, lm_sess_key;
struct ntlm_state *ntlm_state
= talloc_get_type_abort(*state,
struct ntlm_state);
NTSTATUS status;
status = ntlm_password_check(ntlm_state,
false,
NTLM_AUTH_NTLMV2_ONLY,
0,
&ntlm_state->challenge,
&data_blob_null,
&ntlm_state->ntlm,
ntlm_state->username,
ntlm_state->username,
ntlm_state->domain,
NULL,
ntlm_state->nt_hash,
&user_sess_key,
&lm_sess_key);
assert_int_equal(NT_STATUS_V(status),
NT_STATUS_V(NT_STATUS_WRONG_PASSWORD));
}
int main(int argc, const char **argv)
{
const struct CMUnitTest tests[] = {
cmocka_unit_test_setup_teardown(test_ntlm_allowed,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlm_allowed_lm_supplied,
test_ntlm_and_lm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlm_disabled,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlm2,
test_ntlm2_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlm_mschapv2_only_allowed,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlm_mschapv2_only_denied,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlmv2_only_ntlm,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlmv2_only_ntlm_and_lanman,
test_ntlm_and_lm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlmv2_only_ntlm_once,
test_ntlm_setup,
test_ntlm_teardown),
cmocka_unit_test_setup_teardown(test_ntlmv2_only_ntlmv2,
test_ntlmv2_setup,
test_ntlm_teardown)
};
cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
return cmocka_run_group_tests(tests, NULL, NULL);
}
|
