--- /dev/null
+/*
+ Unix SMB/CIFS implementation.
+
+ Winbind status program.
+
+ Copyright (C) Tim Potter 2000-2003
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2003-2004
+ Copyright (C) Francesco Chemolli <kinkie@kame.usr.dsi.unimi.it> 2000
+
+ 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 "utils/ntlm_auth.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_WINBIND
+
+enum ntlm_break {
+ BREAK_NONE,
+ BREAK_LM,
+ BREAK_NT,
+ NO_LM,
+ NO_NT
+};
+
+/*
+ Authenticate a user with a challenge/response, checking session key
+ and valid authentication types
+*/
+
+/*
+ * Test the normal 'LM and NTLM' combination
+ */
+
+static BOOL test_lm_ntlm_broken(enum ntlm_break break_which)
+{
+ BOOL pass = True;
+ NTSTATUS nt_status;
+ uint32 flags = 0;
+ DATA_BLOB lm_response = data_blob(NULL, 24);
+ DATA_BLOB nt_response = data_blob(NULL, 24);
+ DATA_BLOB session_key = data_blob(NULL, 16);
+
+ uchar lm_key[8];
+ uchar user_session_key[16];
+ uchar lm_hash[16];
+ uchar nt_hash[16];
+ DATA_BLOB chall = get_challenge();
+ char *error_string;
+
+ ZERO_STRUCT(lm_key);
+ ZERO_STRUCT(user_session_key);
+
+ flags |= WBFLAG_PAM_LMKEY;
+ flags |= WBFLAG_PAM_USER_SESSION_KEY;
+
+ SMBencrypt(opt_password,chall.data,lm_response.data);
+ E_deshash(opt_password, lm_hash);
+
+ SMBNTencrypt(opt_password,chall.data,nt_response.data);
+
+ E_md4hash(opt_password, nt_hash);
+ SMBsesskeygen_ntv1(nt_hash, NULL, session_key.data);
+
+ switch (break_which) {
+ case BREAK_NONE:
+ break;
+ case BREAK_LM:
+ lm_response.data[0]++;
+ break;
+ case BREAK_NT:
+ nt_response.data[0]++;
+ break;
+ case NO_LM:
+ data_blob_free(&lm_response);
+ break;
+ case NO_NT:
+ data_blob_free(&nt_response);
+ break;
+ }
+
+ nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
+ opt_workstation,
+ &chall,
+ &lm_response,
+ &nt_response,
+ flags,
+ lm_key,
+ user_session_key,
+ &error_string, NULL);
+
+ data_blob_free(&lm_response);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ d_printf("%s (0x%x)\n",
+ error_string,
+ NT_STATUS_V(nt_status));
+ SAFE_FREE(error_string);
+ return break_which == BREAK_NT;
+ }
+
+ if (memcmp(lm_hash, lm_key,
+ sizeof(lm_key)) != 0) {
+ DEBUG(1, ("LM Key does not match expectations!\n"));
+ DEBUG(1, ("lm_key:\n"));
+ dump_data(1, (const char *)lm_key, 8);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)lm_hash, 8);
+ pass = False;
+ }
+
+ if (break_which == NO_NT) {
+ if (memcmp(lm_hash, user_session_key,
+ 8) != 0) {
+ DEBUG(1, ("NT Session Key does not match expectations (should be LM hash)!\n"));
+ DEBUG(1, ("user_session_key:\n"));
+ dump_data(1, (const char *)user_session_key, sizeof(user_session_key));
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)lm_hash, sizeof(lm_hash));
+ pass = False;
+ }
+ } else {
+ if (memcmp(session_key.data, user_session_key,
+ sizeof(user_session_key)) != 0) {
+ DEBUG(1, ("NT Session Key does not match expectations!\n"));
+ DEBUG(1, ("user_session_key:\n"));
+ dump_data(1, (const char *)user_session_key, 16);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)session_key.data, session_key.length);
+ pass = False;
+ }
+ }
+ return pass;
+}
+
+/*
+ * Test LM authentication, no NT response supplied
+ */
+
+static BOOL test_lm(void)
+{
+
+ return test_lm_ntlm_broken(NO_NT);
+}
+
+/*
+ * Test the NTLM response only, no LM.
+ */
+
+static BOOL test_ntlm(void)
+{
+ return test_lm_ntlm_broken(NO_LM);
+}
+
+/*
+ * Test the NTLM response only, but in the LM field.
+ */
+
+static BOOL test_ntlm_in_lm(void)
+{
+ BOOL pass = True;
+ NTSTATUS nt_status;
+ uint32 flags = 0;
+ DATA_BLOB nt_response = data_blob(NULL, 24);
+
+ uchar lm_key[8];
+ uchar lm_hash[16];
+ uchar user_session_key[16];
+ DATA_BLOB chall = get_challenge();
+ char *error_string;
+
+ ZERO_STRUCT(user_session_key);
+
+ flags |= WBFLAG_PAM_LMKEY;
+ flags |= WBFLAG_PAM_USER_SESSION_KEY;
+
+ SMBNTencrypt(opt_password,chall.data,nt_response.data);
+
+ E_deshash(opt_password, lm_hash);
+
+ nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
+ opt_workstation,
+ &chall,
+ &nt_response,
+ NULL,
+ flags,
+ lm_key,
+ user_session_key,
+ &error_string, NULL);
+
+ data_blob_free(&nt_response);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ d_printf("%s (0x%x)\n",
+ error_string,
+ NT_STATUS_V(nt_status));
+ SAFE_FREE(error_string);
+ return False;
+ }
+
+ if (memcmp(lm_hash, lm_key,
+ sizeof(lm_key)) != 0) {
+ DEBUG(1, ("LM Key does not match expectations!\n"));
+ DEBUG(1, ("lm_key:\n"));
+ dump_data(1, (const char *)lm_key, 8);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)lm_hash, 8);
+ pass = False;
+ }
+ if (memcmp(lm_hash, user_session_key, 8) != 0) {
+ DEBUG(1, ("Session Key (first 8 lm hash) does not match expectations!\n"));
+ DEBUG(1, ("user_session_key:\n"));
+ dump_data(1, (const char *)user_session_key, 16);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)lm_hash, 8);
+ pass = False;
+ }
+ return pass;
+}
+
+/*
+ * Test the NTLM response only, but in the both the NT and LM fields.
+ */
+
+static BOOL test_ntlm_in_both(void)
+{
+ BOOL pass = True;
+ NTSTATUS nt_status;
+ uint32 flags = 0;
+ DATA_BLOB nt_response = data_blob(NULL, 24);
+ DATA_BLOB session_key = data_blob(NULL, 16);
+
+ char lm_key[8];
+ char lm_hash[16];
+ char user_session_key[16];
+ char nt_hash[16];
+ DATA_BLOB chall = get_challenge();
+ char *error_string;
+
+ ZERO_STRUCT(lm_key);
+ ZERO_STRUCT(user_session_key);
+
+ flags |= WBFLAG_PAM_LMKEY;
+ flags |= WBFLAG_PAM_USER_SESSION_KEY;
+
+ SMBNTencrypt(opt_password,chall.data,nt_response.data);
+ E_md4hash(opt_password, (unsigned char *)nt_hash);
+ SMBsesskeygen_ntv1((const unsigned char *)nt_hash, NULL, session_key.data);
+
+ E_deshash(opt_password, (unsigned char *)lm_hash);
+
+ nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
+ opt_workstation,
+ &chall,
+ &nt_response,
+ &nt_response,
+ flags,
+ (unsigned char *)lm_key,
+ (unsigned char *)user_session_key,
+ &error_string, NULL);
+
+ data_blob_free(&nt_response);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ d_printf("%s (0x%x)\n",
+ error_string,
+ NT_STATUS_V(nt_status));
+ SAFE_FREE(error_string);
+ return False;
+ }
+
+ if (memcmp(lm_hash, lm_key,
+ sizeof(lm_key)) != 0) {
+ DEBUG(1, ("LM Key does not match expectations!\n"));
+ DEBUG(1, ("lm_key:\n"));
+ dump_data(1, lm_key, 8);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, lm_hash, 8);
+ pass = False;
+ }
+ if (memcmp(session_key.data, user_session_key,
+ sizeof(user_session_key)) != 0) {
+ DEBUG(1, ("NT Session Key does not match expectations!\n"));
+ DEBUG(1, ("user_session_key:\n"));
+ dump_data(1, user_session_key, 16);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)session_key.data, session_key.length);
+ pass = False;
+ }
+
+
+ return pass;
+}
+
+/*
+ * Test the NTLMv2 and LMv2 responses
+ */
+
+static BOOL test_lmv2_ntlmv2_broken(enum ntlm_break break_which)
+{
+ BOOL pass = True;
+ NTSTATUS nt_status;
+ uint32 flags = 0;
+ DATA_BLOB ntlmv2_response = data_blob(NULL, 0);
+ DATA_BLOB lmv2_response = data_blob(NULL, 0);
+ DATA_BLOB ntlmv2_session_key = data_blob(NULL, 0);
+ DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
+
+ uchar user_session_key[16];
+ DATA_BLOB chall = get_challenge();
+ char *error_string;
+
+ ZERO_STRUCT(user_session_key);
+
+ flags |= WBFLAG_PAM_USER_SESSION_KEY;
+
+ if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
+ &names_blob,
+ &lmv2_response, &ntlmv2_response,
+ &ntlmv2_session_key)) {
+ data_blob_free(&names_blob);
+ return False;
+ }
+ data_blob_free(&names_blob);
+
+ switch (break_which) {
+ case BREAK_NONE:
+ break;
+ case BREAK_LM:
+ lmv2_response.data[0]++;
+ break;
+ case BREAK_NT:
+ ntlmv2_response.data[0]++;
+ break;
+ case NO_LM:
+ data_blob_free(&lmv2_response);
+ break;
+ case NO_NT:
+ data_blob_free(&ntlmv2_response);
+ break;
+ }
+
+ nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
+ opt_workstation,
+ &chall,
+ &lmv2_response,
+ &ntlmv2_response,
+ flags,
+ NULL,
+ user_session_key,
+ &error_string, NULL);
+
+ data_blob_free(&lmv2_response);
+ data_blob_free(&ntlmv2_response);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ d_printf("%s (0x%x)\n",
+ error_string,
+ NT_STATUS_V(nt_status));
+ SAFE_FREE(error_string);
+ return break_which == BREAK_NT;
+ }
+
+ if (break_which != NO_NT && break_which != BREAK_NT && memcmp(ntlmv2_session_key.data, user_session_key,
+ sizeof(user_session_key)) != 0) {
+ DEBUG(1, ("USER (NTLMv2) Session Key does not match expectations!\n"));
+ DEBUG(1, ("user_session_key:\n"));
+ dump_data(1, (const char *)user_session_key, 16);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)ntlmv2_session_key.data, ntlmv2_session_key.length);
+ pass = False;
+ }
+ return pass;
+}
+
+/*
+ * Test the NTLMv2 and LMv2 responses
+ */
+
+static BOOL test_lmv2_ntlmv2(void)
+{
+ return test_lmv2_ntlmv2_broken(BREAK_NONE);
+}
+
+/*
+ * Test the LMv2 response only
+ */
+
+static BOOL test_lmv2(void)
+{
+ return test_lmv2_ntlmv2_broken(NO_NT);
+}
+
+/*
+ * Test the NTLMv2 response only
+ */
+
+static BOOL test_ntlmv2(void)
+{
+ return test_lmv2_ntlmv2_broken(NO_LM);
+}
+
+static BOOL test_lm_ntlm(void)
+{
+ return test_lm_ntlm_broken(BREAK_NONE);
+}
+
+static BOOL test_ntlm_lm_broken(void)
+{
+ return test_lm_ntlm_broken(BREAK_LM);
+}
+
+static BOOL test_ntlm_ntlm_broken(void)
+{
+ return test_lm_ntlm_broken(BREAK_NT);
+}
+
+static BOOL test_ntlmv2_lmv2_broken(void)
+{
+ return test_lmv2_ntlmv2_broken(BREAK_LM);
+}
+
+static BOOL test_ntlmv2_ntlmv2_broken(void)
+{
+ return test_lmv2_ntlmv2_broken(BREAK_NT);
+}
+
+static BOOL test_plaintext(enum ntlm_break break_which)
+{
+ NTSTATUS nt_status;
+ uint32 flags = 0;
+ DATA_BLOB nt_response = data_blob(NULL, 0);
+ DATA_BLOB lm_response = data_blob(NULL, 0);
+ char *password;
+
+ uchar user_session_key[16];
+ uchar lm_key[16];
+ static const uchar zeros[8];
+ DATA_BLOB chall = data_blob(zeros, sizeof(zeros));
+ char *error_string;
+
+ ZERO_STRUCT(user_session_key);
+
+ flags |= WBFLAG_PAM_LMKEY;
+ flags |= WBFLAG_PAM_USER_SESSION_KEY;
+
+ if ((push_ucs2_allocate((smb_ucs2_t **)&nt_response.data, opt_password)) == -1) {
+ DEBUG(0, ("push_ucs2_allocate failed!\n"));
+ exit(1);
+ }
+
+ nt_response.length = strlen_w(((void *)nt_response.data))*sizeof(smb_ucs2_t);
+
+ password = strdup_upper(opt_password);
+
+ if ((convert_string_allocate(NULL, CH_UNIX,
+ CH_DOS, password,
+ strlen(password)+1,
+ (void**)&lm_response.data,True)) == -1) {
+ DEBUG(0, ("push_ascii_allocate failed!\n"));
+ exit(1);
+ }
+
+ SAFE_FREE(password);
+
+ lm_response.length = strlen((const char *)lm_response.data);
+
+ switch (break_which) {
+ case BREAK_NONE:
+ break;
+ case BREAK_LM:
+ lm_response.data[0]++;
+ break;
+ case BREAK_NT:
+ nt_response.data[0]++;
+ break;
+ case NO_LM:
+ SAFE_FREE(lm_response.data);
+ lm_response.length = 0;
+ break;
+ case NO_NT:
+ SAFE_FREE(nt_response.data);
+ nt_response.length = 0;
+ break;
+ }
+
+ nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
+ opt_workstation,
+ &chall,
+ &lm_response,
+ &nt_response,
+ flags,
+ lm_key,
+ user_session_key,
+ &error_string, NULL);
+
+ SAFE_FREE(nt_response.data);
+ SAFE_FREE(lm_response.data);
+ data_blob_free(&chall);
+
+ if (!NT_STATUS_IS_OK(nt_status)) {
+ d_printf("%s (0x%x)\n",
+ error_string,
+ NT_STATUS_V(nt_status));
+ SAFE_FREE(error_string);
+ return break_which == BREAK_NT;
+ }
+
+ return break_which != BREAK_NT;
+}
+
+static BOOL test_plaintext_none_broken(void) {
+ return test_plaintext(BREAK_NONE);
+}
+
+static BOOL test_plaintext_lm_broken(void) {
+ return test_plaintext(BREAK_LM);
+}
+
+static BOOL test_plaintext_nt_broken(void) {
+ return test_plaintext(BREAK_NT);
+}
+
+static BOOL test_plaintext_nt_only(void) {
+ return test_plaintext(NO_LM);
+}
+
+static BOOL test_plaintext_lm_only(void) {
+ return test_plaintext(NO_NT);
+}
+
+/*
+ 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 feilds)
+
+ 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)(void);
+ const char *name;
+} test_table[] = {
+ {test_lm, "LM"},
+ {test_lm_ntlm, "LM and NTLM"},
+ {test_ntlm, "NTLM"},
+ {test_ntlm_in_lm, "NTLM in LM"},
+ {test_ntlm_in_both, "NTLM in both"},
+ {test_ntlmv2, "NTLMv2"},
+ {test_lmv2_ntlmv2, "NTLMv2 and LMv2"},
+ {test_lmv2, "LMv2"},
+ {test_ntlmv2_lmv2_broken, "NTLMv2 and LMv2, LMv2 broken"},
+ {test_ntlmv2_ntlmv2_broken, "NTLMv2 and LMv2, NTLMv2 broken"},
+ {test_ntlm_lm_broken, "NTLM and LM, LM broken"},
+ {test_ntlm_ntlm_broken, "NTLM and LM, NTLM broken"},
+ {test_plaintext_none_broken, "Plaintext"},
+ {test_plaintext_lm_broken, "Plaintext LM broken"},
+ {test_plaintext_nt_broken, "Plaintext NT broken"},
+ {test_plaintext_nt_only, "Plaintext NT only"},
+ {test_plaintext_lm_only, "Plaintext LM only"},
+ {NULL, NULL}
+};
+
+BOOL diagnose_ntlm_auth(void)
+{
+ unsigned int i;
+ BOOL pass = True;
+
+ for (i=0; test_table[i].fn; i++) {
+ if (!test_table[i].fn()) {
+ DEBUG(1, ("Test %s failed!\n", test_table[i].name));
+ pass = False;
+ }
+ }
+
+ return pass;
+}
+
projects / samba / blobdiff