summaryrefslogtreecommitdiff
path: root/source3/utils
diff options
context:
space:
mode:
authorAndrew Bartlett <abartlet@samba.org>2003-12-30 05:02:32 +0000
committerAndrew Bartlett <abartlet@samba.org>2003-12-30 05:02:32 +0000
commitbccf3f374b984bf327057daa8d03374b70034d3b (patch)
tree7853ac1a4c26b7116d55b941ecc6199096298ec3 /source3/utils
parentd90e41600629f963d8bd3b9bda98260d70130947 (diff)
downloadsamba-bccf3f374b984bf327057daa8d03374b70034d3b.tar.gz
samba-bccf3f374b984bf327057daa8d03374b70034d3b.tar.bz2
samba-bccf3f374b984bf327057daa8d03374b70034d3b.zip
Refactor our authentication and authentication testing code.
The next move will be to remove our password checking code from the SAM authentication backend, and into a file where other parts of samba can use it. The ntlm_auth changes provide for better use of common code. Andrew Bartlett (This used to be commit 2375abfa0077a884248c84614d5109f57dfdf5b1)
Diffstat (limited to 'source3/utils')
-rw-r--r--source3/utils/ntlm_auth.c523
1 files changed, 181 insertions, 342 deletions
diff --git a/source3/utils/ntlm_auth.c b/source3/utils/ntlm_auth.c
index b2450ffd0c..e33f4c4dee 100644
--- a/source3/utils/ntlm_auth.c
+++ b/source3/utils/ntlm_auth.c
@@ -38,6 +38,14 @@ enum stdio_helper_mode {
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,
char *buf, int length);
@@ -1217,71 +1225,10 @@ static DATA_BLOB get_challenge(void)
}
/*
- * Test LM authentication, no NT response supplied
- */
-
-static BOOL test_lm(void)
-{
- NTSTATUS nt_status;
- uint32 flags = 0;
- DATA_BLOB lm_response = data_blob(NULL, 24);
-
- uchar lm_key[8];
- uchar nt_key[16];
- uchar lm_hash[16];
- DATA_BLOB chall = get_challenge();
- char *error_string;
-
- ZERO_STRUCT(lm_key);
- ZERO_STRUCT(nt_key);
-
- flags |= WBFLAG_PAM_LMKEY;
- flags |= WBFLAG_PAM_NTKEY;
-
- SMBencrypt(opt_password, chall.data, lm_response.data);
- E_deshash(opt_password, lm_hash);
-
- nt_status = contact_winbind_auth_crap(opt_username, opt_domain, opt_workstation,
- &chall,
- &lm_response,
- NULL,
- flags,
- lm_key,
- nt_key,
- &error_string);
-
- 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));
- 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);
- }
- if (memcmp(lm_hash, nt_key, 8) != 0) {
- DEBUG(1, ("Session Key (first 8, lm hash) does not match expectations!\n"));
- DEBUG(1, ("nt_key:\n"));
- dump_data(1, (const char *)nt_key, 8);
- DEBUG(1, ("expected:\n"));
- dump_data(1, (const char *)lm_hash, 8);
- }
- return True;
-}
-
-/*
* Test the normal 'LM and NTLM' combination
*/
-static BOOL test_lm_ntlm(void)
+static BOOL test_lm_ntlm_broken(enum ntlm_break break_which)
{
BOOL pass = True;
NTSTATUS nt_status;
@@ -1311,6 +1258,23 @@ static BOOL test_lm_ntlm(void)
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,
@@ -1328,7 +1292,7 @@ static BOOL test_lm_ntlm(void)
error_string,
NT_STATUS_V(nt_status));
SAFE_FREE(error_string);
- return False;
+ return break_which == BREAK_NT;
}
if (memcmp(lm_hash, lm_key,
@@ -1340,88 +1304,48 @@ static BOOL test_lm_ntlm(void)
dump_data(1, (const char *)lm_hash, 8);
pass = False;
}
- if (memcmp(session_key.data, nt_key,
- sizeof(nt_key)) != 0) {
- DEBUG(1, ("NT Session Key does not match expectations!\n"));
- DEBUG(1, ("nt_key:\n"));
- dump_data(1, (const char *)nt_key, 16);
- DEBUG(1, ("expected:\n"));
- dump_data(1, (const char *)session_key.data, session_key.length);
- pass = False;
+
+ if (break_which == NO_NT) {
+ if (memcmp(lm_hash, nt_key,
+ 8) != 0) {
+ DEBUG(1, ("NT Session Key does not match expectations (should be LM hash)!\n"));
+ DEBUG(1, ("nt_key:\n"));
+ dump_data(1, (const char *)nt_key, sizeof(nt_key));
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)lm_hash, sizeof(lm_hash));
+ pass = False;
+ }
+ } else {
+ if (memcmp(session_key.data, nt_key,
+ sizeof(nt_key)) != 0) {
+ DEBUG(1, ("NT Session Key does not match expectations!\n"));
+ DEBUG(1, ("nt_key:\n"));
+ dump_data(1, (const char *)nt_key, 16);
+ DEBUG(1, ("expected:\n"));
+ dump_data(1, (const char *)session_key.data, session_key.length);
+ pass = False;
+ }
}
return pass;
}
/*
- * Test the NTLM response only, no LM.
+ * Test LM authentication, no NT response supplied
*/
-static BOOL test_ntlm(void)
+static BOOL test_lm(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 nt_key[16];
- char lm_hash[16];
- char nt_hash[16];
- DATA_BLOB chall = get_challenge();
- char *error_string;
-
- ZERO_STRUCT(lm_key);
- ZERO_STRUCT(nt_key);
- flags |= WBFLAG_PAM_LMKEY;
- flags |= WBFLAG_PAM_NTKEY;
-
- 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,
- NULL,
- &nt_response,
- flags,
- (unsigned char *)lm_key,
- (unsigned char *)nt_key,
- &error_string);
-
- data_blob_free(&nt_response);
+ return test_lm_ntlm_broken(NO_NT);
+}
- 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;
- }
+/*
+ * Test the NTLM response only, no LM.
+ */
- 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, nt_key,
- sizeof(nt_key)) != 0) {
- DEBUG(1, ("NT Session Key does not match expectations!\n"));
- DEBUG(1, ("nt_key:\n"));
- dump_data(1, nt_key, 16);
- DEBUG(1, ("expected:\n"));
- dump_data(1, (const char *)session_key.data, session_key.length);
- pass = False;
- }
- return pass;
+static BOOL test_ntlm(void)
+{
+ return test_lm_ntlm_broken(NO_LM);
}
/*
@@ -1565,15 +1489,16 @@ static BOOL test_ntlm_in_both(void)
}
/*
- * Test the NTLMv2 response only
+ * Test the NTLMv2 and LMv2 responses
*/
-static BOOL test_ntlmv2(void)
+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 nt_session_key = data_blob(NULL, 0);
DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
@@ -1587,23 +1512,41 @@ static BOOL test_ntlmv2(void)
if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
&names_blob,
- NULL, &ntlmv2_response,
+ &lmv2_response, &ntlmv2_response,
&nt_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,
- NULL,
+ &lmv2_response,
&ntlmv2_response,
flags,
NULL,
nt_key,
&error_string);
+ data_blob_free(&lmv2_response);
data_blob_free(&ntlmv2_response);
if (!NT_STATUS_IS_OK(nt_status)) {
@@ -1611,10 +1554,10 @@ static BOOL test_ntlmv2(void)
error_string,
NT_STATUS_V(nt_status));
SAFE_FREE(error_string);
- return False;
+ return break_which == BREAK_NT;
}
- if (memcmp(nt_session_key.data, nt_key,
+ if (break_which != NO_NT && break_which != BREAK_NT && memcmp(nt_session_key.data, nt_key,
sizeof(nt_key)) != 0) {
DEBUG(1, ("NT Session Key does not match expectations!\n"));
DEBUG(1, ("nt_key:\n"));
@@ -1632,62 +1575,7 @@ static BOOL test_ntlmv2(void)
static BOOL test_lmv2_ntlmv2(void)
{
- 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 nt_session_key = data_blob(NULL, 0);
- DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
-
- uchar nt_key[16];
- DATA_BLOB chall = get_challenge();
- char *error_string;
-
- ZERO_STRUCT(nt_key);
-
- flags |= WBFLAG_PAM_NTKEY;
-
- if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
- &names_blob,
- &lmv2_response, &ntlmv2_response,
- &nt_session_key)) {
- data_blob_free(&names_blob);
- return False;
- }
- data_blob_free(&names_blob);
-
- nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
- opt_workstation,
- &chall,
- &lmv2_response,
- &ntlmv2_response,
- flags,
- NULL,
- nt_key,
- &error_string);
-
- 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 False;
- }
-
- if (memcmp(nt_session_key.data, nt_key,
- sizeof(nt_key)) != 0) {
- DEBUG(1, ("NT Session Key does not match expectations!\n"));
- DEBUG(1, ("nt_key:\n"));
- dump_data(1, (const char *)nt_key, 16);
- DEBUG(1, ("expected:\n"));
- dump_data(1, (const char *)nt_session_key.data, nt_session_key.length);
- pass = False;
- }
- return pass;
+ return test_lmv2_ntlmv2_broken(BREAK_NONE);
}
/*
@@ -1696,200 +1584,145 @@ static BOOL test_lmv2_ntlmv2(void)
static BOOL test_lmv2(void)
{
- BOOL pass = True;
- NTSTATUS nt_status;
- uint32 flags = 0;
- DATA_BLOB lmv2_response = data_blob(NULL, 0);
-
- DATA_BLOB chall = get_challenge();
- char *error_string;
-
- if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
- NULL,
- &lmv2_response, NULL,
- NULL)) {
- return False;
- }
-
- nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
- opt_workstation,
- &chall,
- &lmv2_response,
- NULL,
- flags,
- NULL,
- NULL,
- &error_string);
-
- data_blob_free(&lmv2_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;
- }
-
- return pass;
+ return test_lmv2_ntlmv2_broken(NO_NT);
}
/*
- * Test the normal 'LM and NTLM' combination but deliberately break one
+ * Test the NTLMv2 response only
*/
-static BOOL test_ntlm_broken(BOOL break_lm)
+static BOOL test_ntlmv2(void)
{
- 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 nt_key[16];
- uchar lm_hash[16];
- uchar nt_hash[16];
- DATA_BLOB chall = get_challenge();
- char *error_string;
-
- ZERO_STRUCT(lm_key);
- ZERO_STRUCT(nt_key);
-
- flags |= WBFLAG_PAM_LMKEY;
- flags |= WBFLAG_PAM_NTKEY;
-
- 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);
-
- if (break_lm)
- lm_response.data[0]++;
- else
- nt_response.data[0]++;
-
- nt_status = contact_winbind_auth_crap(opt_username, opt_domain,
- opt_workstation,
- &chall,
- &lm_response,
- &nt_response,
- flags,
- lm_key,
- nt_key,
- &error_string);
-
- 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 False;
- }
+ return test_lmv2_ntlmv2_broken(NO_LM);
+}
- 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(session_key.data, nt_key,
- sizeof(nt_key)) != 0) {
- DEBUG(1, ("NT Session Key does not match expectations!\n"));
- DEBUG(1, ("nt_key:\n"));
- dump_data(1, (const char *)nt_key, 16);
- DEBUG(1, ("expected:\n"));
- dump_data(1, (const char *)session_key.data, session_key.length);
- pass = False;
- }
- return pass;
+static BOOL test_lm_ntlm(void)
+{
+ return test_lm_ntlm_broken(BREAK_NONE);
}
static BOOL test_ntlm_lm_broken(void)
{
- return test_ntlm_broken(True);
+ return test_lm_ntlm_broken(BREAK_LM);
}
static BOOL test_ntlm_ntlm_broken(void)
{
- return test_ntlm_broken(False);
+ return test_lm_ntlm_broken(BREAK_NT);
}
-static BOOL test_ntlmv2_broken(BOOL break_lmv2)
+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)
{
- 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 nt_session_key = data_blob(NULL, 0);
- DATA_BLOB names_blob = NTLMv2_generate_names_blob(get_winbind_netbios_name(), get_winbind_domain());
+ DATA_BLOB nt_response = data_blob(NULL, 0);
+ DATA_BLOB lm_response = data_blob(NULL, 0);
+ char *password;
uchar nt_key[16];
- DATA_BLOB chall = get_challenge();
+ uchar lm_key[16];
+ static const uchar zeros[8];
+ DATA_BLOB chall = data_blob(zeros, sizeof(zeros));
char *error_string;
ZERO_STRUCT(nt_key);
flags |= WBFLAG_PAM_NTKEY;
-
- if (!SMBNTLMv2encrypt(opt_username, opt_domain, opt_password, &chall,
- &names_blob,
- &lmv2_response, &ntlmv2_response,
- &nt_session_key)) {
- data_blob_free(&names_blob);
- return False;
+ flags |= WBFLAG_PAM_LMKEY;
+
+ if ((push_ucs2_allocate((smb_ucs2_t **)&nt_response.data, opt_password)) == -1) {
+ DEBUG(0, ("push_ucs2_allocate failed!\n"));
+ exit(1);
}
- data_blob_free(&names_blob);
- /* Heh - this should break the appropriate password hash nicely! */
+ nt_response.length = strlen_w(((void *)nt_response.data))*sizeof(smb_ucs2_t);
- if (break_lmv2)
- lmv2_response.data[0]++;
- else
- ntlmv2_response.data[0]++;
+ password = strdup_upper(opt_password);
+
+ if ((convert_string_allocate(NULL, CH_UNIX,
+ CH_DOS, password,
+ strlen(password)+1,
+ (void**)&lm_response.data)) == -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,
- &lmv2_response,
- &ntlmv2_response,
+ &lm_response,
+ &nt_response,
flags,
- NULL,
+ lm_key,
nt_key,
&error_string);
- data_blob_free(&lmv2_response);
- data_blob_free(&ntlmv2_response);
+ 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 False;
+ return break_which == BREAK_NT;
}
- return pass;
+ return break_which != BREAK_NT;
}
-static BOOL test_ntlmv2_lmv2_broken(void)
-{
- return test_ntlmv2_broken(True);
+static BOOL test_plaintext_none_broken(void) {
+ return test_plaintext(BREAK_NONE);
}
-static BOOL test_ntlmv2_ntlmv2_broken(void)
-{
- return test_ntlmv2_broken(False);
+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);
}
/*
@@ -1903,7 +1736,8 @@ static BOOL test_ntlmv2_ntlmv2_broken(void)
- 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
@@ -1924,7 +1758,12 @@ struct ntlm_tests {
{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_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)