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2f9d2ff895
Signed-off-by: Joseph Sutton <josephsutton@catalyst.net.nz> Reviewed-by: Andrew Bartlett <abartlet@samba.org>
1413 lines
38 KiB
C
1413 lines
38 KiB
C
/*
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Unix SMB/CIFS implementation.
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Password and authentication handling
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Copyright (C) Andrew Bartlett <abartlet@samba.org> 2001-2009
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Copyright (C) Gerald Carter 2003
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Copyright (C) Stefan Metzmacher 2005-2010
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "includes.h"
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#include "system/time.h"
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#include <ldb.h>
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#include "libcli/ldap/ldap_ndr.h"
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#include "libcli/security/security.h"
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#include "auth/auth.h"
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#include "../libcli/auth/ntlm_check.h"
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#include "auth/ntlm/auth_proto.h"
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#include "auth/auth_sam.h"
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#include "dsdb/samdb/samdb.h"
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#include "dsdb/samdb/ldb_modules/util.h"
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#include "dsdb/common/util.h"
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#include "param/param.h"
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#include "librpc/gen_ndr/ndr_irpc_c.h"
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#include "librpc/gen_ndr/ndr_winbind_c.h"
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#include "lib/messaging/irpc.h"
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#include "libcli/auth/libcli_auth.h"
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#include "libds/common/roles.h"
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#include "lib/util/tevent_ntstatus.h"
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#include "system/kerberos.h"
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#include "auth/kerberos/kerberos.h"
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#include "kdc/authn_policy_util.h"
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#include "kdc/db-glue.h"
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#undef DBGC_CLASS
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#define DBGC_CLASS DBGC_AUTH
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NTSTATUS auth_sam_init(void);
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extern const char *user_attrs[];
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extern const char *domain_ref_attrs[];
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/****************************************************************************
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Do a specific test for an smb password being correct, given a smb_password and
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the lanman and NT responses.
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****************************************************************************/
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static NTSTATUS authsam_password_ok(struct auth4_context *auth_context,
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TALLOC_CTX *mem_ctx,
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const struct samr_Password *nt_pwd,
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struct smb_krb5_context *smb_krb5_context,
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const DATA_BLOB *stored_aes_256_key,
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const krb5_data *salt,
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const struct auth_usersupplied_info *user_info,
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DATA_BLOB *user_sess_key,
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DATA_BLOB *lm_sess_key)
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{
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NTSTATUS status;
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switch (user_info->password_state) {
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case AUTH_PASSWORD_PLAIN:
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{
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const struct auth_usersupplied_info *user_info_temp;
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if (nt_pwd == NULL && stored_aes_256_key != NULL && user_info->password.plaintext != NULL) {
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bool pw_equal;
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int krb5_ret;
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DATA_BLOB supplied_aes_256_key;
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krb5_keyblock key;
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krb5_data cleartext_data = {
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.data = user_info->password.plaintext,
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.length = strlen(user_info->password.plaintext)
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};
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*lm_sess_key = data_blob_null;
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*user_sess_key = data_blob_null;
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krb5_ret = smb_krb5_create_key_from_string(smb_krb5_context->krb5_context,
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NULL,
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salt,
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&cleartext_data,
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ENCTYPE_AES256_CTS_HMAC_SHA1_96,
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&key);
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if (krb5_ret) {
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DBG_ERR("generation of a aes256-cts-hmac-sha1-96 key for password comparison failed: %s\n",
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smb_get_krb5_error_message(smb_krb5_context->krb5_context,
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krb5_ret, mem_ctx));
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return NT_STATUS_INTERNAL_ERROR;
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}
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supplied_aes_256_key = data_blob_const(KRB5_KEY_DATA(&key),
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KRB5_KEY_LENGTH(&key));
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pw_equal = data_blob_equal_const_time(&supplied_aes_256_key,
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stored_aes_256_key);
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krb5_free_keyblock_contents(smb_krb5_context->krb5_context, &key);
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if (!pw_equal) {
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return NT_STATUS_WRONG_PASSWORD;
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}
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return NT_STATUS_OK;
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}
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status = encrypt_user_info(mem_ctx, auth_context,
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AUTH_PASSWORD_HASH,
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user_info, &user_info_temp);
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if (!NT_STATUS_IS_OK(status)) {
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DEBUG(1, ("Failed to convert plaintext password to password HASH: %s\n", nt_errstr(status)));
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return status;
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}
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user_info = user_info_temp;
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FALL_THROUGH;
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}
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case AUTH_PASSWORD_HASH:
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*lm_sess_key = data_blob(NULL, 0);
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*user_sess_key = data_blob(NULL, 0);
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status = hash_password_check(mem_ctx,
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false,
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lpcfg_ntlm_auth(auth_context->lp_ctx),
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NULL,
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user_info->password.hash.nt,
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user_info->mapped.account_name,
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NULL, nt_pwd);
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NT_STATUS_NOT_OK_RETURN(status);
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break;
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case AUTH_PASSWORD_RESPONSE:
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status = ntlm_password_check(mem_ctx,
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false,
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lpcfg_ntlm_auth(auth_context->lp_ctx),
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user_info->logon_parameters,
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&auth_context->challenge.data,
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&user_info->password.response.lanman,
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&user_info->password.response.nt,
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user_info->mapped.account_name,
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user_info->client.account_name,
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user_info->client.domain_name,
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NULL, nt_pwd,
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user_sess_key, lm_sess_key);
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NT_STATUS_NOT_OK_RETURN(status);
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break;
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}
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return NT_STATUS_OK;
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}
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static void auth_sam_trigger_zero_password(TALLOC_CTX *mem_ctx,
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struct imessaging_context *msg_ctx,
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struct tevent_context *event_ctx,
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struct netr_SendToSamBase *send_to_sam)
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{
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struct dcerpc_binding_handle *irpc_handle;
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struct winbind_SendToSam r;
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struct tevent_req *req;
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TALLOC_CTX *tmp_ctx;
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tmp_ctx = talloc_new(mem_ctx);
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if (tmp_ctx == NULL) {
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return;
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}
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irpc_handle = irpc_binding_handle_by_name(tmp_ctx, msg_ctx,
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"winbind_server",
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&ndr_table_winbind);
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if (irpc_handle == NULL) {
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DEBUG(1,(__location__ ": Unable to get binding handle for winbind\n"));
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TALLOC_FREE(tmp_ctx);
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return;
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}
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r.in.message = *send_to_sam;
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/*
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* This seem to rely on the current IRPC implementation,
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* which delivers the message in the _send function.
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*
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* TODO: we need a ONE_WAY IRPC handle and register
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* a callback and wait for it to be triggered!
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*/
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req = dcerpc_winbind_SendToSam_r_send(tmp_ctx,
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event_ctx,
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irpc_handle,
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&r);
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/* we aren't interested in a reply */
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talloc_free(req);
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TALLOC_FREE(tmp_ctx);
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}
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/*
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send a message to the drepl server telling it to initiate a
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REPL_SECRET getncchanges extended op to fetch the users secrets
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*/
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static void auth_sam_trigger_repl_secret(TALLOC_CTX *mem_ctx,
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struct imessaging_context *msg_ctx,
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struct tevent_context *event_ctx,
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struct ldb_dn *user_dn)
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{
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struct dcerpc_binding_handle *irpc_handle;
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struct drepl_trigger_repl_secret r;
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struct tevent_req *req;
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TALLOC_CTX *tmp_ctx;
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tmp_ctx = talloc_new(mem_ctx);
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if (tmp_ctx == NULL) {
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return;
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}
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irpc_handle = irpc_binding_handle_by_name(tmp_ctx, msg_ctx,
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"dreplsrv",
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&ndr_table_irpc);
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if (irpc_handle == NULL) {
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DEBUG(1,(__location__ ": Unable to get binding handle for dreplsrv\n"));
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TALLOC_FREE(tmp_ctx);
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return;
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}
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r.in.user_dn = ldb_dn_get_linearized(user_dn);
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/*
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* This seem to rely on the current IRPC implementation,
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* which delivers the message in the _send function.
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*
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* TODO: we need a ONE_WAY IRPC handle and register
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* a callback and wait for it to be triggered!
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*/
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req = dcerpc_drepl_trigger_repl_secret_r_send(tmp_ctx,
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event_ctx,
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irpc_handle,
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&r);
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/* we aren't interested in a reply */
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talloc_free(req);
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TALLOC_FREE(tmp_ctx);
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}
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static const struct samr_Password *hide_invalid_nthash(const struct samr_Password *in)
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{
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/*
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* This is the result of:
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*
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* E_md4hash("", zero_string_hash.hash);
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*/
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static const struct samr_Password zero_string_hash = {
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.hash = {
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0x31, 0xd6, 0xcf, 0xe0, 0xd1, 0x6a, 0xe9, 0x31,
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0xb7, 0x3c, 0x59, 0xd7, 0xe0, 0xc0, 0x89, 0xc0,
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}
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};
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if (in == NULL) {
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return NULL;
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}
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/*
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* Skip over any all-zero hashes in the history. No known software
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* stores these but just to be sure
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*/
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if (all_zero(in->hash, sizeof(in->hash))) {
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return NULL;
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}
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/*
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* This looks odd, but the password_hash module in the past has written
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* this in the rare situation where (somehow) we didn't have an old NT
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* hash (one of the old LM-only set paths)
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*
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* mem_equal_const_time() is used to avoid a timing attack
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* when comparing secret data in the server with this constant
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* value.
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*/
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if (mem_equal_const_time(in->hash, zero_string_hash.hash, 16)) {
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in = NULL;
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}
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return in;
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}
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/*
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* Check that a password is OK, and update badPwdCount if required.
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*/
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static NTSTATUS authsam_password_check_and_record(struct auth4_context *auth_context,
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TALLOC_CTX *mem_ctx,
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struct ldb_dn *domain_dn,
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struct ldb_message *msg,
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const struct auth_usersupplied_info *user_info,
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DATA_BLOB *user_sess_key,
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DATA_BLOB *lm_sess_key,
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bool *authoritative)
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{
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NTSTATUS nt_status;
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NTSTATUS auth_status;
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TALLOC_CTX *tmp_ctx;
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int i, ret;
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int history_len = 0;
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struct ldb_context *sam_ctx = auth_context->sam_ctx;
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const char * const attrs[] = { "pwdHistoryLength", NULL };
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struct ldb_message *dom_msg;
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struct samr_Password *nt_pwd;
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DATA_BLOB _aes_256_key = data_blob_null;
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DATA_BLOB *aes_256_key = NULL;
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krb5_data _salt = { .data = NULL, .length = 0 };
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krb5_data *salt = NULL;
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DATA_BLOB salt_data = data_blob_null;
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struct smb_krb5_context *smb_krb5_context = NULL;
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const struct ldb_val *sc_val;
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uint32_t userAccountControl = 0;
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uint32_t current_kvno = 0;
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bool am_rodc;
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tmp_ctx = talloc_new(mem_ctx);
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if (tmp_ctx == NULL) {
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return NT_STATUS_NO_MEMORY;
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}
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/*
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* This call does more than what it appears to do, it also
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* checks for the account lockout.
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*
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* It is done here so that all parts of Samba that read the
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* password refuse to even operate on it if the account is
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* locked out, to avoid mistakes like CVE-2013-4496.
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*/
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nt_status = samdb_result_passwords(tmp_ctx, auth_context->lp_ctx,
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msg, &nt_pwd);
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if (!NT_STATUS_IS_OK(nt_status)) {
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TALLOC_FREE(tmp_ctx);
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return nt_status;
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}
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userAccountControl = ldb_msg_find_attr_as_uint(msg,
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"userAccountControl",
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0);
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sc_val = ldb_msg_find_ldb_val(msg, "supplementalCredentials");
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if (nt_pwd == NULL && sc_val == NULL) {
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if (samdb_rodc(auth_context->sam_ctx, &am_rodc) == LDB_SUCCESS && am_rodc) {
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/*
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* we don't have passwords for this
|
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* account. We are an RODC, and this account
|
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* may be one for which we either are denied
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* REPL_SECRET replication or we haven't yet
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* done the replication. We return
|
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* NT_STATUS_NOT_IMPLEMENTED which tells the
|
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* auth code to try the next authentication
|
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* mechanism. We also send a message to our
|
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* drepl server to tell it to try and
|
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* replicate the secrets for this account.
|
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*
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* TODO: Should we only trigger this is detected
|
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* there's a chance that the password might be
|
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* replicated, we should be able to detect this
|
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* based on msDS-NeverRevealGroup.
|
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*/
|
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auth_sam_trigger_repl_secret(auth_context,
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auth_context->msg_ctx,
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auth_context->event_ctx,
|
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msg->dn);
|
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TALLOC_FREE(tmp_ctx);
|
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return NT_STATUS_NOT_IMPLEMENTED;
|
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}
|
||
}
|
||
|
||
/*
|
||
* If we don't have an NT password, pull a kerberos key
|
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* instead for plaintext.
|
||
*/
|
||
if (nt_pwd == NULL &&
|
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sc_val != NULL &&
|
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user_info->password_state == AUTH_PASSWORD_PLAIN)
|
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{
|
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krb5_error_code krb5_ret;
|
||
|
||
krb5_ret = smb_krb5_init_context(tmp_ctx,
|
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auth_context->lp_ctx,
|
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&smb_krb5_context);
|
||
if (krb5_ret != 0) {
|
||
DBG_ERR("Failed to setup krb5_context: %s!\n",
|
||
error_message(krb5_ret));
|
||
return NT_STATUS_INTERNAL_ERROR;
|
||
}
|
||
|
||
/*
|
||
* Get the current salt from the record
|
||
*/
|
||
|
||
krb5_ret = dsdb_extract_aes_256_key(smb_krb5_context->krb5_context,
|
||
tmp_ctx,
|
||
msg,
|
||
userAccountControl,
|
||
NULL, /* kvno */
|
||
¤t_kvno, /* kvno_out */
|
||
&_aes_256_key,
|
||
&salt_data);
|
||
if (krb5_ret == 0) {
|
||
aes_256_key = &_aes_256_key;
|
||
|
||
_salt.data = (char *)salt_data.data;
|
||
_salt.length = salt_data.length;
|
||
salt = &_salt;
|
||
}
|
||
}
|
||
|
||
auth_status = authsam_password_ok(auth_context,
|
||
tmp_ctx,
|
||
nt_pwd,
|
||
smb_krb5_context,
|
||
aes_256_key,
|
||
salt,
|
||
user_info,
|
||
user_sess_key, lm_sess_key);
|
||
|
||
if (NT_STATUS_IS_OK(auth_status)) {
|
||
if (user_sess_key->data) {
|
||
talloc_steal(mem_ctx, user_sess_key->data);
|
||
}
|
||
if (lm_sess_key->data) {
|
||
talloc_steal(mem_ctx, lm_sess_key->data);
|
||
}
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_OK;
|
||
}
|
||
*user_sess_key = data_blob_null;
|
||
*lm_sess_key = data_blob_null;
|
||
|
||
if (!NT_STATUS_EQUAL(auth_status, NT_STATUS_WRONG_PASSWORD)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return auth_status;
|
||
}
|
||
|
||
/*
|
||
* We only continue if this was a wrong password
|
||
* and we'll always return NT_STATUS_WRONG_PASSWORD
|
||
* no matter what error happens.
|
||
*/
|
||
|
||
/* pull the domain password property attributes */
|
||
ret = dsdb_search_one(sam_ctx, tmp_ctx, &dom_msg, domain_dn, LDB_SCOPE_BASE,
|
||
attrs, 0, "objectClass=domain");
|
||
if (ret == LDB_SUCCESS) {
|
||
history_len = ldb_msg_find_attr_as_uint(dom_msg, "pwdHistoryLength", 0);
|
||
} else if (ret == LDB_ERR_NO_SUCH_OBJECT) {
|
||
DEBUG(3,("Couldn't find domain %s: %s!\n",
|
||
ldb_dn_get_linearized(domain_dn),
|
||
ldb_errstring(sam_ctx)));
|
||
} else {
|
||
DEBUG(3,("error finding domain %s: %s!\n",
|
||
ldb_dn_get_linearized(domain_dn),
|
||
ldb_errstring(sam_ctx)));
|
||
}
|
||
|
||
for (i = 1; i < MIN(history_len, 3); i++) {
|
||
const struct samr_Password *nt_history_pwd = NULL;
|
||
NTTIME pwdLastSet;
|
||
struct timeval tv_now;
|
||
NTTIME now;
|
||
int allowed_period_mins;
|
||
NTTIME allowed_period;
|
||
|
||
/* Reset these variables back to starting as empty */
|
||
aes_256_key = NULL;
|
||
salt = NULL;
|
||
|
||
/*
|
||
* Obtain the i'th old password from the NT password
|
||
* history for this user.
|
||
*
|
||
* We avoid issues with salts (which are not
|
||
* recorded for historical AES256 keys) by using the
|
||
* ntPwdHistory in preference.
|
||
*/
|
||
nt_status = samdb_result_passwords_from_history(tmp_ctx,
|
||
auth_context->lp_ctx,
|
||
msg, i,
|
||
NULL,
|
||
&nt_history_pwd);
|
||
|
||
/*
|
||
* Belts and braces: note that
|
||
* samdb_result_passwords_from_history() currently
|
||
* does not fail for missing attributes, it only sets
|
||
* nt_history_pwd = NULL, so "break" and fall down to
|
||
* the bad password count update if this happens
|
||
*/
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
break;
|
||
}
|
||
|
||
nt_history_pwd = hide_invalid_nthash(nt_history_pwd);
|
||
|
||
/*
|
||
* We don't have an NT hash from the
|
||
* ntPwdHistory, but we can still perform the
|
||
* password check with the AES256
|
||
* key.
|
||
*
|
||
* However, this is the second preference as
|
||
* it will fail if the account was renamed
|
||
* prior to a password change (as we won't
|
||
* have the correct salt available to
|
||
* calculate the AES256 key).
|
||
*/
|
||
|
||
if (nt_history_pwd == NULL && sc_val != NULL &&
|
||
user_info->password_state == AUTH_PASSWORD_PLAIN &&
|
||
current_kvno >= i)
|
||
{
|
||
krb5_error_code krb5_ret;
|
||
const uint32_t request_kvno = current_kvno - i;
|
||
|
||
/*
|
||
* Confirm we have a krb5_context set up
|
||
*/
|
||
if (smb_krb5_context == NULL) {
|
||
/*
|
||
* We get here if we had a unicodePwd
|
||
* for the current password, no
|
||
* ntPwdHistory, a valid previous
|
||
* Kerberos history AND are processing
|
||
* a simple bind.
|
||
*
|
||
* This really is a corner case so
|
||
* favour cleaner code over trying to
|
||
* allow for an old password. It is
|
||
* more likely this is just a new
|
||
* account.
|
||
*
|
||
* "break" out of the loop and fall down
|
||
* to the bad password update
|
||
*/
|
||
break;
|
||
}
|
||
|
||
/*
|
||
* Get the current salt from the record
|
||
*/
|
||
|
||
krb5_ret = dsdb_extract_aes_256_key(smb_krb5_context->krb5_context,
|
||
tmp_ctx,
|
||
msg,
|
||
userAccountControl,
|
||
&request_kvno, /* kvno */
|
||
NULL, /* kvno_out */
|
||
&_aes_256_key,
|
||
&salt_data);
|
||
if (krb5_ret != 0) {
|
||
break;
|
||
}
|
||
|
||
aes_256_key = &_aes_256_key;
|
||
|
||
_salt.data = (char *)salt_data.data;
|
||
_salt.length = salt_data.length;
|
||
salt = &_salt;
|
||
|
||
} else if (nt_history_pwd == NULL) {
|
||
/*
|
||
* If we don't find element 'i' in the
|
||
* ntPwdHistory and can not fall back to the
|
||
* kerberos hash, we won't find 'i+1' ...
|
||
*/
|
||
break;
|
||
}
|
||
|
||
auth_status = authsam_password_ok(auth_context, tmp_ctx,
|
||
nt_history_pwd,
|
||
smb_krb5_context,
|
||
aes_256_key,
|
||
salt,
|
||
user_info,
|
||
user_sess_key,
|
||
lm_sess_key);
|
||
|
||
if (!NT_STATUS_IS_OK(auth_status)) {
|
||
/*
|
||
* If this was not a correct password, try the next
|
||
* one from the history
|
||
*/
|
||
*user_sess_key = data_blob_null;
|
||
*lm_sess_key = data_blob_null;
|
||
continue;
|
||
}
|
||
|
||
if (i != 1) {
|
||
/*
|
||
* The authentication was OK, but not against
|
||
* the previous password, which is stored at index 1.
|
||
*
|
||
* We just return the original wrong password.
|
||
* This skips the update of the bad pwd count,
|
||
* because this is almost certainly user error
|
||
* (or automatic login on a computer using a cached
|
||
* password from before the password change),
|
||
* not an attack.
|
||
*/
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_WRONG_PASSWORD;
|
||
}
|
||
|
||
if (user_info->flags & USER_INFO_INTERACTIVE_LOGON) {
|
||
/*
|
||
* The authentication was OK against the previous password,
|
||
* but it's not a NTLM network authentication,
|
||
* LDAP simple bind or something similar.
|
||
*
|
||
* We just return the original wrong password.
|
||
* This skips the update of the bad pwd count,
|
||
* because this is almost certainly user error
|
||
* (or automatic login on a computer using a cached
|
||
* password from before the password change),
|
||
* not an attack.
|
||
*/
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_WRONG_PASSWORD;
|
||
}
|
||
|
||
/*
|
||
* If the password was OK, it's a NTLM network authentication
|
||
* and it was the previous password.
|
||
*
|
||
* Now we see if it is within the grace period,
|
||
* so that we don't break cached sessions on other computers
|
||
* before the user can lock and unlock their other screens
|
||
* (resetting their cached password).
|
||
*
|
||
* See http://support.microsoft.com/kb/906305
|
||
* OldPasswordAllowedPeriod ("old password allowed period")
|
||
* is specified in minutes. The default is 60.
|
||
*/
|
||
allowed_period_mins = lpcfg_old_password_allowed_period(auth_context->lp_ctx);
|
||
/*
|
||
* NTTIME uses 100ns units
|
||
*/
|
||
allowed_period = (NTTIME) allowed_period_mins *
|
||
60 * 1000*1000*10;
|
||
pwdLastSet = samdb_result_nttime(msg, "pwdLastSet", 0);
|
||
tv_now = timeval_current();
|
||
now = timeval_to_nttime(&tv_now);
|
||
|
||
if (now < pwdLastSet) {
|
||
/*
|
||
* time jump?
|
||
*
|
||
* We just return the original wrong password.
|
||
* This skips the update of the bad pwd count,
|
||
* because this is almost certainly user error
|
||
* (or automatic login on a computer using a cached
|
||
* password from before the password change),
|
||
* not an attack.
|
||
*/
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_WRONG_PASSWORD;
|
||
}
|
||
|
||
if ((now - pwdLastSet) >= allowed_period) {
|
||
/*
|
||
* The allowed period is over.
|
||
*
|
||
* We just return the original wrong password.
|
||
* This skips the update of the bad pwd count,
|
||
* because this is almost certainly user error
|
||
* (or automatic login on a computer using a cached
|
||
* password from before the password change),
|
||
* not an attack.
|
||
*/
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_WRONG_PASSWORD;
|
||
}
|
||
|
||
/*
|
||
* We finally allow the authentication with the
|
||
* previous password within the allowed period.
|
||
*/
|
||
if (user_sess_key->data) {
|
||
talloc_steal(mem_ctx, user_sess_key->data);
|
||
}
|
||
if (lm_sess_key->data) {
|
||
talloc_steal(mem_ctx, lm_sess_key->data);
|
||
}
|
||
|
||
TALLOC_FREE(tmp_ctx);
|
||
return auth_status;
|
||
}
|
||
|
||
/*
|
||
* If we are not in the allowed period or match an old password,
|
||
* we didn't return early. Now update the badPwdCount et al.
|
||
*/
|
||
nt_status = authsam_update_bad_pwd_count(auth_context->sam_ctx,
|
||
msg, domain_dn);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
/*
|
||
* We need to return the original
|
||
* NT_STATUS_WRONG_PASSWORD error, so there isn't
|
||
* anything more we can do than write something into
|
||
* the log
|
||
*/
|
||
DEBUG(0, ("Failed to note bad password for user [%s]: %s\n",
|
||
user_info->mapped.account_name,
|
||
nt_errstr(nt_status)));
|
||
}
|
||
|
||
if (samdb_rodc(auth_context->sam_ctx, &am_rodc) == LDB_SUCCESS && am_rodc) {
|
||
*authoritative = false;
|
||
}
|
||
|
||
TALLOC_FREE(tmp_ctx);
|
||
|
||
if (NT_STATUS_IS_OK(nt_status)) {
|
||
nt_status = NT_STATUS_WRONG_PASSWORD;
|
||
}
|
||
return nt_status;
|
||
}
|
||
|
||
static NTSTATUS authsam_check_netlogon_trust(TALLOC_CTX *mem_ctx,
|
||
struct ldb_context *sam_ctx,
|
||
struct loadparm_context *lp_ctx,
|
||
const struct auth_usersupplied_info *user_info,
|
||
const struct auth_user_info_dc *user_info_dc,
|
||
struct authn_audit_info **server_audit_info_out)
|
||
{
|
||
TALLOC_CTX *tmp_ctx = NULL;
|
||
|
||
static const char *authn_policy_silo_attrs[] = {
|
||
"msDS-AssignedAuthNPolicy",
|
||
"msDS-AssignedAuthNPolicySilo",
|
||
"objectClass", /* used to determine which set of policy
|
||
* attributes apply. */
|
||
NULL,
|
||
};
|
||
|
||
const struct authn_server_policy *authn_server_policy = NULL;
|
||
|
||
struct dom_sid_buf netlogon_trust_sid_buf;
|
||
const char *netlogon_trust_sid_str = NULL;
|
||
struct ldb_dn *netlogon_trust_dn = NULL;
|
||
struct ldb_message *netlogon_trust_msg = NULL;
|
||
|
||
int ret;
|
||
|
||
/* Have we established a secure channel? */
|
||
if (user_info->netlogon_trust_account.secure_channel_type == SEC_CHAN_NULL) {
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
if (!authn_policy_silos_and_policies_in_effect(sam_ctx)) {
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
/*
|
||
* We have established a secure channel, and we should have the machine
|
||
* account’s SID.
|
||
*/
|
||
SMB_ASSERT(user_info->netlogon_trust_account.sid != NULL);
|
||
|
||
tmp_ctx = talloc_new(mem_ctx);
|
||
if (tmp_ctx == NULL) {
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
|
||
netlogon_trust_sid_str = dom_sid_str_buf(user_info->netlogon_trust_account.sid,
|
||
&netlogon_trust_sid_buf);
|
||
|
||
netlogon_trust_dn = ldb_dn_new_fmt(tmp_ctx, sam_ctx,
|
||
"<SID=%s>",
|
||
netlogon_trust_sid_str);
|
||
if (netlogon_trust_dn == NULL) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
|
||
/*
|
||
* Look up the machine account to see if it has an applicable
|
||
* authentication policy.
|
||
*/
|
||
ret = dsdb_search_one(sam_ctx,
|
||
tmp_ctx,
|
||
&netlogon_trust_msg,
|
||
netlogon_trust_dn,
|
||
LDB_SCOPE_BASE,
|
||
authn_policy_silo_attrs,
|
||
0,
|
||
NULL);
|
||
if (ret) {
|
||
talloc_free(tmp_ctx);
|
||
return dsdb_ldb_err_to_ntstatus(ret);
|
||
}
|
||
|
||
ret = authn_policy_server(sam_ctx,
|
||
tmp_ctx,
|
||
netlogon_trust_msg,
|
||
&authn_server_policy);
|
||
if (ret) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_INTERNAL_ERROR;
|
||
}
|
||
|
||
if (authn_server_policy != NULL) {
|
||
struct authn_audit_info *server_audit_info = NULL;
|
||
NTSTATUS status;
|
||
|
||
/*
|
||
* An authentication policy applies to the machine
|
||
* account. Carry out the access check.
|
||
*/
|
||
status = authn_policy_authenticate_to_service(tmp_ctx,
|
||
sam_ctx,
|
||
lp_ctx,
|
||
AUTHN_POLICY_AUTH_TYPE_NTLM,
|
||
user_info_dc,
|
||
NULL /* device_info */,
|
||
(struct auth_claims) {},
|
||
authn_server_policy,
|
||
(struct authn_policy_flags) {},
|
||
&server_audit_info);
|
||
if (server_audit_info != NULL) {
|
||
*server_audit_info_out = talloc_move(mem_ctx, &server_audit_info);
|
||
}
|
||
if (!NT_STATUS_IS_OK(status)) {
|
||
talloc_free(tmp_ctx);
|
||
return status;
|
||
}
|
||
}
|
||
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
static NTSTATUS authsam_authenticate(struct auth4_context *auth_context,
|
||
TALLOC_CTX *mem_ctx,
|
||
struct ldb_dn *domain_dn,
|
||
struct ldb_message *msg,
|
||
const struct auth_usersupplied_info *user_info,
|
||
const struct auth_user_info_dc *user_info_dc,
|
||
DATA_BLOB *user_sess_key, DATA_BLOB *lm_sess_key,
|
||
struct authn_audit_info **client_audit_info_out,
|
||
struct authn_audit_info **server_audit_info_out,
|
||
bool *authoritative)
|
||
{
|
||
NTSTATUS nt_status;
|
||
int ret;
|
||
bool interactive = (user_info->password_state == AUTH_PASSWORD_HASH);
|
||
uint32_t acct_flags = samdb_result_acct_flags(msg, NULL);
|
||
struct netr_SendToSamBase *send_to_sam = NULL;
|
||
const struct authn_ntlm_client_policy *authn_client_policy = NULL;
|
||
TALLOC_CTX *tmp_ctx = talloc_new(mem_ctx);
|
||
if (!tmp_ctx) {
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
|
||
/* You can only do an interactive login to normal accounts */
|
||
if (user_info->flags & USER_INFO_INTERACTIVE_LOGON) {
|
||
if (!(acct_flags & ACB_NORMAL)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_NO_SUCH_USER;
|
||
}
|
||
if (acct_flags & ACB_SMARTCARD_REQUIRED) {
|
||
if (acct_flags & ACB_DISABLED) {
|
||
DEBUG(2,("authsam_authenticate: Account for user '%s' "
|
||
"was disabled.\n",
|
||
user_info->mapped.account_name));
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_ACCOUNT_DISABLED;
|
||
}
|
||
DEBUG(2,("authsam_authenticate: Account for user '%s' "
|
||
"requires interactive smartcard logon.\n",
|
||
user_info->mapped.account_name));
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_SMARTCARD_LOGON_REQUIRED;
|
||
}
|
||
}
|
||
|
||
/* See whether an authentication policy applies to the client. */
|
||
ret = authn_policy_ntlm_client(auth_context->sam_ctx,
|
||
tmp_ctx,
|
||
msg,
|
||
&authn_client_policy);
|
||
if (ret) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_INTERNAL_ERROR;
|
||
}
|
||
|
||
nt_status = authn_policy_ntlm_apply_device_restriction(mem_ctx,
|
||
authn_client_policy,
|
||
client_audit_info_out);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
/*
|
||
* As we didn’t get far enough to check the server policy, only
|
||
* the client policy will be referenced in the authentication
|
||
* log message.
|
||
*/
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
nt_status = authsam_password_check_and_record(auth_context, tmp_ctx,
|
||
domain_dn, msg,
|
||
user_info,
|
||
user_sess_key, lm_sess_key,
|
||
authoritative);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
nt_status = authsam_check_netlogon_trust(mem_ctx,
|
||
auth_context->sam_ctx,
|
||
auth_context->lp_ctx,
|
||
user_info,
|
||
user_info_dc,
|
||
server_audit_info_out);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
nt_status = authsam_account_ok(tmp_ctx, auth_context->sam_ctx,
|
||
user_info->logon_parameters,
|
||
domain_dn,
|
||
msg,
|
||
user_info->workstation_name,
|
||
user_info->mapped.account_name,
|
||
false, false);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
nt_status = authsam_logon_success_accounting(auth_context->sam_ctx,
|
||
msg, domain_dn,
|
||
interactive,
|
||
tmp_ctx,
|
||
&send_to_sam);
|
||
|
||
if (send_to_sam != NULL) {
|
||
auth_sam_trigger_zero_password(tmp_ctx,
|
||
auth_context->msg_ctx,
|
||
auth_context->event_ctx,
|
||
send_to_sam);
|
||
}
|
||
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
if (user_sess_key && user_sess_key->data) {
|
||
talloc_steal(mem_ctx, user_sess_key->data);
|
||
}
|
||
if (lm_sess_key && lm_sess_key->data) {
|
||
talloc_steal(mem_ctx, lm_sess_key->data);
|
||
}
|
||
|
||
TALLOC_FREE(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
|
||
|
||
static NTSTATUS authsam_check_password_internals(struct auth_method_context *ctx,
|
||
TALLOC_CTX *mem_ctx,
|
||
const struct auth_usersupplied_info *user_info,
|
||
struct auth_user_info_dc **user_info_dc,
|
||
struct authn_audit_info **client_audit_info_out,
|
||
struct authn_audit_info **server_audit_info_out,
|
||
bool *authoritative)
|
||
{
|
||
NTSTATUS nt_status;
|
||
int result;
|
||
const char *account_name = user_info->mapped.account_name;
|
||
struct ldb_message *msg;
|
||
struct ldb_dn *domain_dn;
|
||
DATA_BLOB user_sess_key, lm_sess_key;
|
||
TALLOC_CTX *tmp_ctx;
|
||
const char *p = NULL;
|
||
struct auth_user_info_dc *reparented = NULL;
|
||
struct authn_audit_info *client_audit_info = NULL;
|
||
struct authn_audit_info *server_audit_info = NULL;
|
||
|
||
if (ctx->auth_ctx->sam_ctx == NULL) {
|
||
DEBUG(0, ("No SAM available, cannot log in users\n"));
|
||
return NT_STATUS_INVALID_SYSTEM_SERVICE;
|
||
}
|
||
|
||
if (!account_name || !*account_name) {
|
||
/* 'not for me' */
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
tmp_ctx = talloc_new(mem_ctx);
|
||
if (!tmp_ctx) {
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
|
||
domain_dn = ldb_get_default_basedn(ctx->auth_ctx->sam_ctx);
|
||
if (domain_dn == NULL) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_NO_SUCH_DOMAIN;
|
||
}
|
||
|
||
/*
|
||
* If we have not already mapped this user, then now is a good
|
||
* time to do so, before we look it up. We used to do this
|
||
* earlier, but in a multi-forest environment we want to do
|
||
* this mapping at the final domain.
|
||
*
|
||
* However, on the flip side we may have already mapped the
|
||
* user if this was an LDAP simple bind, in which case we
|
||
* really, really want to get back to exactly the same account
|
||
* we got the DN for.
|
||
*/
|
||
if (!user_info->cracknames_called) {
|
||
p = strchr_m(account_name, '@');
|
||
} else {
|
||
/*
|
||
* This is slightly nicer than double-indenting the
|
||
* block below
|
||
*/
|
||
p = NULL;
|
||
}
|
||
|
||
if (p != NULL) {
|
||
const char *nt4_domain = NULL;
|
||
const char *nt4_account = NULL;
|
||
bool is_my_domain = false;
|
||
|
||
nt_status = crack_name_to_nt4_name(mem_ctx,
|
||
ctx->auth_ctx->sam_ctx,
|
||
/*
|
||
* DRSUAPI_DS_NAME_FORMAT_UPN_FOR_LOGON ?
|
||
*/
|
||
DRSUAPI_DS_NAME_FORMAT_USER_PRINCIPAL,
|
||
account_name,
|
||
&nt4_domain, &nt4_account);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_NO_SUCH_USER;
|
||
}
|
||
|
||
is_my_domain = lpcfg_is_mydomain(ctx->auth_ctx->lp_ctx, nt4_domain);
|
||
if (!is_my_domain) {
|
||
/*
|
||
* This is a user within our forest,
|
||
* but in a different domain,
|
||
* we're not authoritative
|
||
*/
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
/*
|
||
* Let's use the NT4 account name for the lookup.
|
||
*/
|
||
account_name = nt4_account;
|
||
}
|
||
|
||
nt_status = authsam_search_account(tmp_ctx, ctx->auth_ctx->sam_ctx, account_name, domain_dn, &msg);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
talloc_free(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
nt_status = authsam_make_user_info_dc(tmp_ctx, ctx->auth_ctx->sam_ctx,
|
||
lpcfg_netbios_name(ctx->auth_ctx->lp_ctx),
|
||
lpcfg_sam_name(ctx->auth_ctx->lp_ctx),
|
||
lpcfg_sam_dnsname(ctx->auth_ctx->lp_ctx),
|
||
domain_dn,
|
||
msg,
|
||
data_blob_null, data_blob_null,
|
||
user_info_dc);
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
talloc_free(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
result = dsdb_is_protected_user(ctx->auth_ctx->sam_ctx,
|
||
(*user_info_dc)->sids,
|
||
(*user_info_dc)->num_sids);
|
||
/*
|
||
* We also consider an error result (a negative value) as denying the
|
||
* authentication.
|
||
*/
|
||
if (result != 0) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_ACCOUNT_RESTRICTION;
|
||
}
|
||
|
||
nt_status = authsam_authenticate(ctx->auth_ctx,
|
||
tmp_ctx,
|
||
domain_dn,
|
||
msg,
|
||
user_info,
|
||
*user_info_dc,
|
||
&user_sess_key,
|
||
&lm_sess_key,
|
||
&client_audit_info,
|
||
&server_audit_info,
|
||
authoritative);
|
||
if (client_audit_info != NULL) {
|
||
*client_audit_info_out = talloc_move(mem_ctx, &client_audit_info);
|
||
}
|
||
if (server_audit_info != NULL) {
|
||
*server_audit_info_out = talloc_move(mem_ctx, &server_audit_info);
|
||
}
|
||
if (!NT_STATUS_IS_OK(nt_status)) {
|
||
talloc_free(tmp_ctx);
|
||
return nt_status;
|
||
}
|
||
|
||
(*user_info_dc)->user_session_key = data_blob_talloc(*user_info_dc,
|
||
user_sess_key.data,
|
||
user_sess_key.length);
|
||
if (user_sess_key.data) {
|
||
if ((*user_info_dc)->user_session_key.data == NULL) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
}
|
||
|
||
(*user_info_dc)->lm_session_key = data_blob_talloc(*user_info_dc,
|
||
lm_sess_key.data,
|
||
lm_sess_key.length);
|
||
if (lm_sess_key.data) {
|
||
if ((*user_info_dc)->lm_session_key.data == NULL) {
|
||
TALLOC_FREE(tmp_ctx);
|
||
return NT_STATUS_NO_MEMORY;
|
||
}
|
||
}
|
||
|
||
/*
|
||
* Release our handle to *user_info_dc. {client,server}_audit_info_out,
|
||
* if non-NULL, becomes the new parent.
|
||
*/
|
||
reparented = talloc_reparent(tmp_ctx, mem_ctx, *user_info_dc);
|
||
if (reparented == NULL) {
|
||
talloc_free(tmp_ctx);
|
||
return NT_STATUS_INTERNAL_ERROR;
|
||
}
|
||
|
||
talloc_free(tmp_ctx);
|
||
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
struct authsam_check_password_state {
|
||
struct auth_user_info_dc *user_info_dc;
|
||
struct authn_audit_info *client_audit_info;
|
||
struct authn_audit_info *server_audit_info;
|
||
bool authoritative;
|
||
};
|
||
|
||
static struct tevent_req *authsam_check_password_send(
|
||
TALLOC_CTX *mem_ctx,
|
||
struct tevent_context *ev,
|
||
struct auth_method_context *ctx,
|
||
const struct auth_usersupplied_info *user_info)
|
||
{
|
||
struct tevent_req *req = NULL;
|
||
struct authsam_check_password_state *state = NULL;
|
||
NTSTATUS status;
|
||
|
||
req = tevent_req_create(
|
||
mem_ctx, &state, struct authsam_check_password_state);
|
||
if (req == NULL) {
|
||
return NULL;
|
||
}
|
||
/*
|
||
* authsam_check_password_internals() sets this to false in
|
||
* the rodc case, otherwise it leaves it untouched. Default to
|
||
* "we're authoritative".
|
||
*/
|
||
state->authoritative = true;
|
||
|
||
status = authsam_check_password_internals(
|
||
ctx,
|
||
state,
|
||
user_info,
|
||
&state->user_info_dc,
|
||
&state->client_audit_info,
|
||
&state->server_audit_info,
|
||
&state->authoritative);
|
||
if (tevent_req_nterror(req, status)) {
|
||
return tevent_req_post(req, ev);
|
||
}
|
||
|
||
tevent_req_done(req);
|
||
return tevent_req_post(req, ev);
|
||
}
|
||
|
||
static NTSTATUS authsam_check_password_recv(
|
||
struct tevent_req *req,
|
||
TALLOC_CTX *mem_ctx,
|
||
struct auth_user_info_dc **interim_info,
|
||
const struct authn_audit_info **client_audit_info,
|
||
const struct authn_audit_info **server_audit_info,
|
||
bool *authoritative)
|
||
{
|
||
struct authsam_check_password_state *state = tevent_req_data(
|
||
req, struct authsam_check_password_state);
|
||
NTSTATUS status;
|
||
|
||
*authoritative = state->authoritative;
|
||
|
||
*client_audit_info = talloc_reparent(state, mem_ctx, state->client_audit_info);
|
||
state->client_audit_info = NULL;
|
||
|
||
*server_audit_info = talloc_reparent(state, mem_ctx, state->server_audit_info);
|
||
state->server_audit_info = NULL;
|
||
|
||
if (tevent_req_is_nterror(req, &status)) {
|
||
tevent_req_received(req);
|
||
return status;
|
||
}
|
||
/*
|
||
* Release our handle to state->user_info_dc.
|
||
* {client,server}_audit_info, if non-NULL, becomes the new parent.
|
||
*/
|
||
*interim_info = talloc_reparent(state, mem_ctx, state->user_info_dc);
|
||
state->user_info_dc = NULL;
|
||
|
||
tevent_req_received(req);
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
static NTSTATUS authsam_ignoredomain_want_check(struct auth_method_context *ctx,
|
||
TALLOC_CTX *mem_ctx,
|
||
const struct auth_usersupplied_info *user_info)
|
||
{
|
||
if (!user_info->mapped.account_name || !*user_info->mapped.account_name) {
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
/****************************************************************************
|
||
Check SAM security (above) but with a few extra checks.
|
||
****************************************************************************/
|
||
static NTSTATUS authsam_want_check(struct auth_method_context *ctx,
|
||
TALLOC_CTX *mem_ctx,
|
||
const struct auth_usersupplied_info *user_info)
|
||
{
|
||
const char *effective_domain = user_info->mapped.domain_name;
|
||
bool is_local_name = false;
|
||
bool is_my_domain = false;
|
||
const char *p = NULL;
|
||
struct dsdb_trust_routing_table *trt = NULL;
|
||
const struct lsa_TrustDomainInfoInfoEx *tdo = NULL;
|
||
NTSTATUS status;
|
||
|
||
if (!user_info->mapped.account_name || !*user_info->mapped.account_name) {
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
if (effective_domain == NULL) {
|
||
effective_domain = "";
|
||
}
|
||
|
||
is_local_name = lpcfg_is_myname(ctx->auth_ctx->lp_ctx,
|
||
effective_domain);
|
||
|
||
/* check whether or not we service this domain/workgroup name */
|
||
switch (lpcfg_server_role(ctx->auth_ctx->lp_ctx)) {
|
||
case ROLE_STANDALONE:
|
||
return NT_STATUS_OK;
|
||
|
||
case ROLE_DOMAIN_MEMBER:
|
||
if (is_local_name) {
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
DBG_DEBUG("%s is not one of my local names (DOMAIN_MEMBER)\n",
|
||
effective_domain);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
|
||
case ROLE_ACTIVE_DIRECTORY_DC:
|
||
/* handled later */
|
||
break;
|
||
|
||
default:
|
||
DBG_ERR("lpcfg_server_role() has an undefined value\n");
|
||
return NT_STATUS_INVALID_SERVER_STATE;
|
||
}
|
||
|
||
/*
|
||
* Now we handle the AD DC case...
|
||
*/
|
||
|
||
is_my_domain = lpcfg_is_my_domain_or_realm(ctx->auth_ctx->lp_ctx,
|
||
effective_domain);
|
||
if (is_my_domain) {
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
if (user_info->cracknames_called) {
|
||
/*
|
||
* The caller already did a cracknames call.
|
||
*/
|
||
DBG_DEBUG("%s is not own domain name (DC)\n",
|
||
effective_domain);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
if (!strequal(effective_domain, "")) {
|
||
DBG_DEBUG("%s is not own domain name (DC)\n",
|
||
effective_domain);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
p = strchr_m(user_info->mapped.account_name, '@');
|
||
if (p == NULL) {
|
||
/*
|
||
* An empty to domain name should be handled
|
||
* as the local domain name.
|
||
*/
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
effective_domain = p + 1;
|
||
is_my_domain = lpcfg_is_my_domain_or_realm(ctx->auth_ctx->lp_ctx,
|
||
effective_domain);
|
||
if (is_my_domain) {
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
if (strequal(effective_domain, "")) {
|
||
DBG_DEBUG("authsam_check_password: upn without realm (DC)\n");
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
/*
|
||
* as last option we check the routing table if the
|
||
* domain is within our forest.
|
||
*/
|
||
status = dsdb_trust_routing_table_load(ctx->auth_ctx->sam_ctx,
|
||
mem_ctx, &trt);
|
||
if (!NT_STATUS_IS_OK(status)) {
|
||
DBG_ERR("authsam_check_password: dsdb_trust_routing_table_load() %s\n",
|
||
nt_errstr(status));
|
||
return status;
|
||
}
|
||
|
||
tdo = dsdb_trust_routing_by_name(trt, effective_domain);
|
||
if (tdo == NULL) {
|
||
DBG_DEBUG("%s is not a known TLN (DC)\n",
|
||
effective_domain);
|
||
TALLOC_FREE(trt);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
if (!(tdo->trust_attributes & LSA_TRUST_ATTRIBUTE_WITHIN_FOREST)) {
|
||
DBG_DEBUG("%s is not a TLN in our forest (DC)\n",
|
||
effective_domain);
|
||
TALLOC_FREE(trt);
|
||
return NT_STATUS_NOT_IMPLEMENTED;
|
||
}
|
||
|
||
/*
|
||
* This principal is within our forest.
|
||
* we'll later do a crack_name_to_nt4_name()
|
||
* to check if it's in our domain.
|
||
*/
|
||
TALLOC_FREE(trt);
|
||
return NT_STATUS_OK;
|
||
}
|
||
|
||
static const struct auth_operations sam_ignoredomain_ops = {
|
||
.name = "sam_ignoredomain",
|
||
.want_check = authsam_ignoredomain_want_check,
|
||
.check_password_send = authsam_check_password_send,
|
||
.check_password_recv = authsam_check_password_recv,
|
||
};
|
||
|
||
static const struct auth_operations sam_ops = {
|
||
.name = "sam",
|
||
.want_check = authsam_want_check,
|
||
.check_password_send = authsam_check_password_send,
|
||
.check_password_recv = authsam_check_password_recv,
|
||
};
|
||
|
||
_PUBLIC_ NTSTATUS auth4_sam_init(TALLOC_CTX *);
|
||
_PUBLIC_ NTSTATUS auth4_sam_init(TALLOC_CTX *ctx)
|
||
{
|
||
NTSTATUS ret;
|
||
|
||
ret = auth_register(ctx, &sam_ops);
|
||
if (!NT_STATUS_IS_OK(ret)) {
|
||
DEBUG(0,("Failed to register 'sam' auth backend!\n"));
|
||
return ret;
|
||
}
|
||
|
||
ret = auth_register(ctx, &sam_ignoredomain_ops);
|
||
if (!NT_STATUS_IS_OK(ret)) {
|
||
DEBUG(0,("Failed to register 'sam_ignoredomain' auth backend!\n"));
|
||
return ret;
|
||
}
|
||
|
||
return ret;
|
||
}
|