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-rw-r--r--source4/auth/auth_sam.c7
-rw-r--r--source4/auth/ntlm_check.c131
2 files changed, 42 insertions, 96 deletions
diff --git a/source4/auth/auth_sam.c b/source4/auth/auth_sam.c
index 008a7f3a84..57f645adc8 100644
--- a/source4/auth/auth_sam.c
+++ b/source4/auth/auth_sam.c
@@ -70,14 +70,13 @@ static NTSTATUS authsam_password_ok(struct auth_context *auth_context,
/* NO break */
}
case AUTH_PASSWORD_HASH:
+ *lm_sess_key = data_blob(NULL, 0);
+ *user_sess_key = data_blob(NULL, 0);
status = hash_password_check(mem_ctx,
user_info->password.hash.lanman,
user_info->password.hash.nt,
user_info->mapped.account_name,
- user_info->client.account_name,
- user_info->client.domain_name,
- lm_pwd, nt_pwd,
- user_sess_key, lm_sess_key);
+ lm_pwd, nt_pwd);
NT_STATUS_NOT_OK_RETURN(status);
break;
diff --git a/source4/auth/ntlm_check.c b/source4/auth/ntlm_check.c
index fa9677e75e..d033dfeb79 100644
--- a/source4/auth/ntlm_check.c
+++ b/source4/auth/ntlm_check.c
@@ -221,31 +221,16 @@ NTSTATUS hash_password_check(TALLOC_CTX *mem_ctx,
const struct samr_Password *client_lanman,
const struct samr_Password *client_nt,
const char *username,
- const char *client_username,
- const char *client_domain,
const struct samr_Password *stored_lanman,
- const struct samr_Password *stored_nt,
- DATA_BLOB *user_sess_key,
- DATA_BLOB *lm_sess_key)
+ const struct samr_Password *stored_nt)
{
if (stored_nt == NULL) {
DEBUG(3,("ntlm_password_check: NO NT password stored for user %s.\n",
username));
}
- if (lm_sess_key) {
- *lm_sess_key = data_blob(NULL, 0);
- }
- if (user_sess_key) {
- *user_sess_key = data_blob(NULL, 0);
- }
-
if (client_nt && stored_nt) {
if (memcmp(client_nt->hash, stored_nt->hash, sizeof(stored_nt->hash)) == 0) {
- if (user_sess_key) {
- *user_sess_key = data_blob_talloc(mem_ctx, NULL, 16);
- SMBsesskeygen_ntv1(stored_nt->hash, user_sess_key->data);
- }
return NT_STATUS_OK;
} else {
DEBUG(3,("ntlm_password_check: Interactive logon: NT password check failed for user %s\n",
@@ -308,56 +293,30 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
username));
}
- if (lm_sess_key) {
- *lm_sess_key = data_blob(NULL, 0);
- }
- if (user_sess_key) {
- *user_sess_key = data_blob(NULL, 0);
- }
+ *lm_sess_key = data_blob(NULL, 0);
+ *user_sess_key = data_blob(NULL, 0);
/* Check for cleartext netlogon. Used by Exchange 5.5. */
if (challenge->length == sizeof(zeros) &&
(memcmp(challenge->data, zeros, challenge->length) == 0 )) {
+ struct samr_Password client_nt;
+ struct samr_Password client_lm;
+ uint8_t dospwd[14];
DEBUG(4,("ntlm_password_check: checking plaintext passwords for user %s\n",
username));
- if (stored_nt && nt_response->length) {
- uint8_t pwhash[16];
- mdfour(pwhash, nt_response->data, nt_response->length);
- if (memcmp(pwhash, stored_nt->hash, sizeof(pwhash)) == 0) {
- return NT_STATUS_OK;
- } else {
- DEBUG(3,("ntlm_password_check: NT (Unicode) plaintext password check failed for user %s\n",
- username));
- return NT_STATUS_WRONG_PASSWORD;
- }
-
- } else if (!lp_lanman_auth()) {
- DEBUG(3,("ntlm_password_check: (plaintext password check) LANMAN passwords NOT PERMITTED for user %s\n",
- username));
-
- } else if (stored_lanman && lm_response->length) {
- uint8_t dospwd[14];
- uint8_t p16[16];
- ZERO_STRUCT(dospwd);
-
- memcpy(dospwd, lm_response->data, MIN(lm_response->length, sizeof(dospwd)));
- /* Only the fisrt 14 chars are considered, password need not be null terminated. */
-
- /* we *might* need to upper-case the string here */
- E_P16((const uint8_t *)dospwd, p16);
-
- if (memcmp(p16, stored_lanman->hash, sizeof(p16)) == 0) {
- return NT_STATUS_OK;
- } else {
- DEBUG(3,("ntlm_password_check: LANMAN (ASCII) plaintext password check failed for user %s\n",
- username));
- return NT_STATUS_WRONG_PASSWORD;
- }
- } else {
- DEBUG(3, ("Plaintext authentication for user %s attempted, but neither NT nor LM passwords available\n", username));
- return NT_STATUS_WRONG_PASSWORD;
- }
+ mdfour(client_nt.hash, nt_response->data, nt_response->length);
+ ZERO_STRUCT(dospwd);
+
+ memcpy(dospwd, lm_response->data, MIN(lm_response->length, sizeof(dospwd)));
+ /* Only the fisrt 14 chars are considered, password need not be null terminated. */
+
+ /* we *might* need to upper-case the string here */
+ E_P16((const uint8_t *)dospwd, client_lm.hash);
+
+ return hash_password_check(mem_ctx, &client_lm, &client_nt,
+ username,
+ stored_lanman, stored_nt);
}
if (nt_response->length != 0 && nt_response->length < 24) {
@@ -377,11 +336,9 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
client_domain,
False,
user_sess_key)) {
- if (lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
}
@@ -394,11 +351,9 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
client_domain,
True,
user_sess_key)) {
- if (lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
}
@@ -411,11 +366,9 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
"",
False,
user_sess_key)) {
- if (lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
} else {
@@ -517,15 +470,13 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
client_domain,
False,
user_sess_key);
- } else if (user_sess_key) {
+ } else {
/* Otherwise, use the LMv2 session key */
*user_sess_key = tmp_sess_key;
}
- if (user_sess_key && lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
}
@@ -550,15 +501,13 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
client_domain,
True,
user_sess_key);
- } else if (user_sess_key) {
+ } else {
/* Otherwise, use the LMv2 session key */
*user_sess_key = tmp_sess_key;
}
- if (user_sess_key && lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
}
@@ -583,15 +532,13 @@ NTSTATUS ntlm_password_check(TALLOC_CTX *mem_ctx,
"",
False,
user_sess_key);
- } else if (user_sess_key) {
+ } else {
/* Otherwise, use the LMv2 session key */
*user_sess_key = tmp_sess_key;
}
- if (user_sess_key && lm_sess_key) {
- *lm_sess_key = *user_sess_key;
- if (user_sess_key->length) {
- lm_sess_key->length = 8;
- }
+ *lm_sess_key = *user_sess_key;
+ if (user_sess_key->length) {
+ lm_sess_key->length = 8;
}
return NT_STATUS_OK;
}
generated by cgit (git 2.34.1) at 2024-07-06 23:54:06 +0000