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r177: Split ntlm_auth --diagnostics into a seperate file, so as not to clutter

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the main ntlm_auth program.

It quite possibly should belong in smbtorture, but relies on the
winbind client for now.

Andrew Bartlett
(This used to be commit 6e1b7a8848)
This commit is contained in:
Andrew Bartlett 2004-04-12 14:19:48 +00:00 committed by Gerald (Jerry) Carter
parent 85a307bb3e
commit 78b5dfadca
4 changed files with 665 additions and 601 deletions
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10
source3/Makefile.in
View File

@ -653,7 +653,8 @@ TDBBACKUP_OBJ = tdb/tdbbackup.o tdb/tdbback.o lib/snprintf.o $(TDBBASE_OBJ)
TDBDUMP_OBJ = tdb/tdbdump.o $(TDBBASE_OBJ) TDBDUMP_OBJ = tdb/tdbdump.o $(TDBBASE_OBJ)
NTLM_AUTH_OBJ = utils/ntlm_auth.o $(LIBSAMBA_OBJ) $(POPT_LIB_OBJ) \ NTLM_AUTH_OBJ1 = utils/ntlm_auth.o utils/ntlm_auth_diagnostics.o
NTLM_AUTH_OBJ = ${NTLM_AUTH_OBJ1} $(LIBSAMBA_OBJ) $(POPT_LIB_OBJ) \
libsmb/asn1.o libsmb/spnego.o libsmb/clikrb5.o libads/kerberos.o \ libsmb/asn1.o libsmb/spnego.o libsmb/clikrb5.o libads/kerberos.o \
libads/kerberos_verify.o $(SECRETS_OBJ) lib/server_mutex.o \ libads/kerberos_verify.o $(SECRETS_OBJ) lib/server_mutex.o \
libads/authdata.o rpc_parse/parse_prs.o rpc_parse/parse_misc.o \ libads/authdata.o rpc_parse/parse_prs.o rpc_parse/parse_misc.o \
@ -1365,7 +1366,7 @@ clean: delheaders python_clean
# afterwards. # afterwards.
proto_exists: include/proto.h include/wrepld_proto.h include/build_env.h \ proto_exists: include/proto.h include/wrepld_proto.h include/build_env.h \
nsswitch/winbindd_proto.h web/swat_proto.h \ nsswitch/winbindd_proto.h web/swat_proto.h \
client/client_proto.h utils/net_proto.h smbd/build_options.c client/client_proto.h utils/net_proto.h utils/ntlm_auth_proto.h smbd/build_options.c
delheaders: delheaders:
@echo Removing prototype headers @echo Removing prototype headers
@ -1413,6 +1414,11 @@ utils/net_proto.h:
-h _NET_PROTO_H_ $(builddir)/utils/net_proto.h \ -h _NET_PROTO_H_ $(builddir)/utils/net_proto.h \
$(NET_OBJ1) $(NET_OBJ1)
utils/ntlm_auth_proto.h:
@cd $(srcdir) && $(SHELL) $(MKPROTO_SH) $(AWK) \
-h _NTLM_AUTH_PROTO_H_ $(builddir)/utils/ntlm_auth_proto.h \
$(NTLM_AUTH_OBJ1)
# "make headers" or "make proto" calls a subshell because we need to # "make headers" or "make proto" calls a subshell because we need to
# make sure these commands are executed in sequence even for a # make sure these commands are executed in sequence even for a
# parallel make. # parallel make.

629
source3/utils/ntlm_auth.c
View File

@ -23,6 +23,7 @@
*/ */
#include "includes.h" #include "includes.h"
#include "../utils/ntlm_auth.h"
#undef DBGC_CLASS #undef DBGC_CLASS
#define DBGC_CLASS DBGC_WINBIND #define DBGC_CLASS DBGC_WINBIND
@ -39,14 +40,6 @@ enum stdio_helper_mode {
NUM_HELPER_MODES NUM_HELPER_MODES
}; };
enum ntlm_break {
BREAK_NONE,
BREAK_LM,
BREAK_NT,
NO_LM,
NO_NT
};
typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode, typedef void (*stdio_helper_function)(enum stdio_helper_mode stdio_helper_mode,
char *buf, int length); char *buf, int length);
@ -81,10 +74,10 @@ static const struct {
extern int winbindd_fd; extern int winbindd_fd;
static const char *opt_username; const char *opt_username;
static const char *opt_domain; const char *opt_domain;
static const char *opt_workstation; const char *opt_workstation;
static const char *opt_password; const char *opt_password;
static DATA_BLOB opt_challenge; static DATA_BLOB opt_challenge;
static DATA_BLOB opt_lm_response; static DATA_BLOB opt_lm_response;
static DATA_BLOB opt_nt_response; static DATA_BLOB opt_nt_response;
@ -124,7 +117,7 @@ static char winbind_separator(void)
return sep; return sep;
} }
static const char *get_winbind_domain(void) const char *get_winbind_domain(void)
{ {
struct winbindd_response response; struct winbindd_response response;
@ -149,7 +142,7 @@ static const char *get_winbind_domain(void)
} }
static const char *get_winbind_netbios_name(void) const char *get_winbind_netbios_name(void)
{ {
struct winbindd_response response; struct winbindd_response response;
@ -175,6 +168,18 @@ static const char *get_winbind_netbios_name(void)
} }
DATA_BLOB get_challenge(void)
{
static DATA_BLOB chal;
if (opt_challenge.length)
return opt_challenge;
chal = data_blob(NULL, 8);
generate_random_buffer(chal.data, chal.length, False);
return chal;
}
/* Copy of parse_domain_user from winbindd_util.c. Parse a string of the /* Copy of parse_domain_user from winbindd_util.c. Parse a string of the
form DOMAIN/user into a domain and a user */ form DOMAIN/user into a domain and a user */
@ -287,17 +292,17 @@ static BOOL check_plaintext_auth(const char *user, const char *pass,
/* authenticate a user with an encrypted username/password */ /* authenticate a user with an encrypted username/password */
static NTSTATUS contact_winbind_auth_crap(const char *username, NTSTATUS contact_winbind_auth_crap(const char *username,
const char *domain, const char *domain,
const char *workstation, const char *workstation,
const DATA_BLOB *challenge, const DATA_BLOB *challenge,
const DATA_BLOB *lm_response, const DATA_BLOB *lm_response,
const DATA_BLOB *nt_response, const DATA_BLOB *nt_response,
uint32 flags, uint32 flags,
uint8 lm_key[8], uint8 lm_key[8],
uint8 user_session_key[16], uint8 user_session_key[16],
char **error_string, char **error_string,
char **unix_name) char **unix_name)
{ {
NTSTATUS nt_status; NTSTATUS nt_status;
NSS_STATUS result; NSS_STATUS result;
@ -1490,580 +1495,6 @@ static BOOL check_auth_crap(void)
return True; return True;
} }
/*
Authenticate a user with a challenge/response, checking session key
and valid authentication types
*/
static DATA_BLOB get_challenge(void)
{
static DATA_BLOB chal;
if (opt_challenge.length)
return opt_challenge;
chal = data_blob(NULL, 8);
generate_random_buffer(chal.data, chal.length, False);
return chal;
}
/*
* 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(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"}
};
static 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;
}
/* Main program */ /* Main program */
enum { enum {

27
source3/utils/ntlm_auth.h Normal file
View File

@ -0,0 +1,27 @@
/*
Samba Unix/Linux NTLM authentication tool
Copyright (C) 2001 Andrew Bartlett (abartlet@samba.org)
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 "../utils/ntlm_auth_proto.h"
/* Some of the popt variables are needed in the diagnostics code */
extern const char *opt_username;
extern const char *opt_domain;
extern const char *opt_workstation;
extern const char *opt_password;

600
source3/utils/ntlm_auth_diagnostics.c Normal file
View File

@ -0,0 +1,600 @@
/*
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(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"}
};
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;
}