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245b277749
The system account was instanciated with wrong user an group SIDs, group
sid resulted being just the domain SID.
Bug seems to date from fbe6d155bf.
Andrew (B.) please check.
414 lines
13 KiB
C
414 lines
13 KiB
C
/*
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Unix SMB/CIFS implementation.
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Authentication utility functions
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) Andrew Bartlett 2001-2010
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Copyright (C) Jeremy Allison 2000-2001
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Copyright (C) Rafal Szczesniak 2002
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Copyright (C) Stefan Metzmacher 2005
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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 "libcli/security/security.h"
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#include "auth/credentials/credentials.h"
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#include "param/param.h"
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#include "auth/auth.h" /* for auth_user_info_dc */
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#include "auth/session.h"
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#include "auth/system_session_proto.h"
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/*
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prevent the static system session being freed
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*/
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static int system_session_destructor(struct auth_session_info *info)
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{
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return -1;
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}
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/* Create a security token for a session SYSTEM (the most
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* trusted/prvilaged account), including the local machine account as
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* the off-host credentials
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*/
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_PUBLIC_ struct auth_session_info *system_session(struct loadparm_context *lp_ctx)
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{
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static struct auth_session_info *static_session;
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NTSTATUS nt_status;
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if (static_session) {
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return static_session;
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}
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nt_status = auth_system_session_info(talloc_autofree_context(),
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lp_ctx,
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&static_session);
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if (!NT_STATUS_IS_OK(nt_status)) {
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talloc_free(static_session);
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static_session = NULL;
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return NULL;
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}
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talloc_set_destructor(static_session, system_session_destructor);
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return static_session;
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}
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NTSTATUS auth_system_session_info(TALLOC_CTX *parent_ctx,
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struct loadparm_context *lp_ctx,
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struct auth_session_info **_session_info)
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{
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NTSTATUS nt_status;
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struct auth_user_info_dc *user_info_dc = NULL;
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struct auth_session_info *session_info = NULL;
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TALLOC_CTX *mem_ctx = talloc_new(parent_ctx);
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nt_status = auth_system_user_info_dc(mem_ctx, lpcfg_netbios_name(lp_ctx),
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&user_info_dc);
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if (!NT_STATUS_IS_OK(nt_status)) {
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talloc_free(mem_ctx);
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return nt_status;
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}
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/* references the user_info_dc into the session_info */
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nt_status = auth_generate_session_info(parent_ctx, NULL, NULL, user_info_dc, AUTH_SESSION_INFO_SIMPLE_PRIVILEGES, &session_info);
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talloc_free(mem_ctx);
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NT_STATUS_NOT_OK_RETURN(nt_status);
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session_info->credentials = cli_credentials_init(session_info);
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if (!session_info->credentials) {
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return NT_STATUS_NO_MEMORY;
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}
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cli_credentials_set_conf(session_info->credentials, lp_ctx);
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cli_credentials_set_machine_account_pending(session_info->credentials, lp_ctx);
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*_session_info = session_info;
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return NT_STATUS_OK;
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}
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NTSTATUS auth_system_user_info_dc(TALLOC_CTX *mem_ctx, const char *netbios_name,
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struct auth_user_info_dc **_user_info_dc)
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{
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struct auth_user_info_dc *user_info_dc;
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struct auth_user_info *info;
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user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
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/* This returns a pointer to a struct dom_sid, which is the
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* same as a 1 element list of struct dom_sid */
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user_info_dc->num_sids = 1;
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user_info_dc->sids = dom_sid_parse_talloc(user_info_dc, SID_NT_SYSTEM);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->sids);
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/* annoying, but the Anonymous really does have a session key,
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and it is all zeros! */
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user_info_dc->user_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
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user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
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data_blob_clear(&user_info_dc->user_session_key);
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data_blob_clear(&user_info_dc->lm_session_key);
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user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
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info->account_name = talloc_strdup(info, "SYSTEM");
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NT_STATUS_HAVE_NO_MEMORY(info->account_name);
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info->domain_name = talloc_strdup(info, "NT AUTHORITY");
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NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
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info->full_name = talloc_strdup(info, "System");
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NT_STATUS_HAVE_NO_MEMORY(info->full_name);
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info->logon_script = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
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info->profile_path = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
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info->home_directory = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
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info->home_drive = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
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info->logon_server = talloc_strdup(info, netbios_name);
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NT_STATUS_HAVE_NO_MEMORY(info->logon_server);
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info->last_logon = 0;
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info->last_logoff = 0;
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info->acct_expiry = 0;
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info->last_password_change = 0;
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info->allow_password_change = 0;
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info->force_password_change = 0;
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info->logon_count = 0;
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info->bad_password_count = 0;
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info->acct_flags = ACB_NORMAL;
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info->authenticated = true;
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*_user_info_dc = user_info_dc;
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return NT_STATUS_OK;
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}
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static NTSTATUS auth_domain_admin_user_info_dc(TALLOC_CTX *mem_ctx,
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const char *netbios_name,
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const char *domain_name,
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struct dom_sid *domain_sid,
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struct auth_user_info_dc **_user_info_dc)
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{
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struct auth_user_info_dc *user_info_dc;
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struct auth_user_info *info;
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user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
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user_info_dc->num_sids = 7;
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user_info_dc->sids = talloc_array(user_info_dc, struct dom_sid, user_info_dc->num_sids);
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user_info_dc->sids[PRIMARY_USER_SID_INDEX] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[PRIMARY_USER_SID_INDEX], DOMAIN_RID_ADMINISTRATOR);
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user_info_dc->sids[PRIMARY_GROUP_SID_INDEX] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[PRIMARY_GROUP_SID_INDEX], DOMAIN_RID_USERS);
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user_info_dc->sids[2] = global_sid_Builtin_Administrators;
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user_info_dc->sids[3] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[3], DOMAIN_RID_ADMINS);
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user_info_dc->sids[4] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[4], DOMAIN_RID_ENTERPRISE_ADMINS);
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user_info_dc->sids[5] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[5], DOMAIN_RID_POLICY_ADMINS);
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user_info_dc->sids[6] = *domain_sid;
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sid_append_rid(&user_info_dc->sids[6], DOMAIN_RID_SCHEMA_ADMINS);
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/* What should the session key be?*/
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user_info_dc->user_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
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user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
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data_blob_clear(&user_info_dc->user_session_key);
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data_blob_clear(&user_info_dc->lm_session_key);
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user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
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info->account_name = talloc_strdup(info, "Administrator");
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NT_STATUS_HAVE_NO_MEMORY(info->account_name);
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info->domain_name = talloc_strdup(info, domain_name);
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NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
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info->full_name = talloc_strdup(info, "Administrator");
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NT_STATUS_HAVE_NO_MEMORY(info->full_name);
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info->logon_script = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
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info->profile_path = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
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info->home_directory = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
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info->home_drive = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
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info->logon_server = talloc_strdup(info, netbios_name);
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NT_STATUS_HAVE_NO_MEMORY(info->logon_server);
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info->last_logon = 0;
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info->last_logoff = 0;
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info->acct_expiry = 0;
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info->last_password_change = 0;
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info->allow_password_change = 0;
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info->force_password_change = 0;
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info->logon_count = 0;
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info->bad_password_count = 0;
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info->acct_flags = ACB_NORMAL;
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info->authenticated = true;
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*_user_info_dc = user_info_dc;
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return NT_STATUS_OK;
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}
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static NTSTATUS auth_domain_admin_session_info(TALLOC_CTX *parent_ctx,
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struct loadparm_context *lp_ctx,
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struct dom_sid *domain_sid,
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struct auth_session_info **session_info)
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{
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NTSTATUS nt_status;
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struct auth_user_info_dc *user_info_dc = NULL;
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TALLOC_CTX *mem_ctx = talloc_new(parent_ctx);
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NT_STATUS_HAVE_NO_MEMORY(mem_ctx);
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nt_status = auth_domain_admin_user_info_dc(mem_ctx, lpcfg_netbios_name(lp_ctx),
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lpcfg_workgroup(lp_ctx), domain_sid,
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&user_info_dc);
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if (!NT_STATUS_IS_OK(nt_status)) {
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talloc_free(mem_ctx);
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return nt_status;
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}
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nt_status = auth_generate_session_info(mem_ctx, NULL, NULL, user_info_dc,
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AUTH_SESSION_INFO_SIMPLE_PRIVILEGES|AUTH_SESSION_INFO_AUTHENTICATED|AUTH_SESSION_INFO_DEFAULT_GROUPS,
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session_info);
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/* There is already a reference between the sesion_info and user_info_dc */
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if (NT_STATUS_IS_OK(nt_status)) {
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talloc_steal(parent_ctx, *session_info);
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}
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talloc_free(mem_ctx);
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return nt_status;
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}
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_PUBLIC_ struct auth_session_info *admin_session(TALLOC_CTX *mem_ctx, struct loadparm_context *lp_ctx, struct dom_sid *domain_sid)
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{
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NTSTATUS nt_status;
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struct auth_session_info *session_info = NULL;
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nt_status = auth_domain_admin_session_info(mem_ctx,
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lp_ctx,
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domain_sid,
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&session_info);
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if (!NT_STATUS_IS_OK(nt_status)) {
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return NULL;
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}
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return session_info;
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}
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_PUBLIC_ NTSTATUS auth_anonymous_session_info(TALLOC_CTX *parent_ctx,
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struct loadparm_context *lp_ctx,
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struct auth_session_info **_session_info)
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{
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NTSTATUS nt_status;
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struct auth_user_info_dc *user_info_dc = NULL;
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struct auth_session_info *session_info = NULL;
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TALLOC_CTX *mem_ctx = talloc_new(parent_ctx);
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nt_status = auth_anonymous_user_info_dc(mem_ctx,
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lpcfg_netbios_name(lp_ctx),
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&user_info_dc);
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if (!NT_STATUS_IS_OK(nt_status)) {
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talloc_free(mem_ctx);
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return nt_status;
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}
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/* references the user_info_dc into the session_info */
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nt_status = auth_generate_session_info(parent_ctx, NULL, NULL, user_info_dc, AUTH_SESSION_INFO_SIMPLE_PRIVILEGES, &session_info);
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talloc_free(mem_ctx);
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NT_STATUS_NOT_OK_RETURN(nt_status);
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session_info->credentials = cli_credentials_init(session_info);
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if (!session_info->credentials) {
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return NT_STATUS_NO_MEMORY;
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}
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cli_credentials_set_conf(session_info->credentials, lp_ctx);
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cli_credentials_set_anonymous(session_info->credentials);
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*_session_info = session_info;
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return NT_STATUS_OK;
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}
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_PUBLIC_ NTSTATUS auth_anonymous_user_info_dc(TALLOC_CTX *mem_ctx,
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const char *netbios_name,
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struct auth_user_info_dc **_user_info_dc)
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{
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struct auth_user_info_dc *user_info_dc;
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struct auth_user_info *info;
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user_info_dc = talloc(mem_ctx, struct auth_user_info_dc);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc);
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/* This returns a pointer to a struct dom_sid, which is the
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* same as a 1 element list of struct dom_sid */
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user_info_dc->num_sids = 1;
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user_info_dc->sids = dom_sid_parse_talloc(user_info_dc, SID_NT_ANONYMOUS);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->sids);
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/* annoying, but the Anonymous really does have a session key... */
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user_info_dc->user_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->user_session_key.data);
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user_info_dc->lm_session_key = data_blob_talloc(user_info_dc, NULL, 16);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->lm_session_key.data);
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/* and it is all zeros! */
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data_blob_clear(&user_info_dc->user_session_key);
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data_blob_clear(&user_info_dc->lm_session_key);
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user_info_dc->info = info = talloc_zero(user_info_dc, struct auth_user_info);
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NT_STATUS_HAVE_NO_MEMORY(user_info_dc->info);
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info->account_name = talloc_strdup(info, "ANONYMOUS LOGON");
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NT_STATUS_HAVE_NO_MEMORY(info->account_name);
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info->domain_name = talloc_strdup(info, "NT AUTHORITY");
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NT_STATUS_HAVE_NO_MEMORY(info->domain_name);
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info->full_name = talloc_strdup(info, "Anonymous Logon");
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NT_STATUS_HAVE_NO_MEMORY(info->full_name);
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info->logon_script = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->logon_script);
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info->profile_path = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->profile_path);
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info->home_directory = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_directory);
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info->home_drive = talloc_strdup(info, "");
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NT_STATUS_HAVE_NO_MEMORY(info->home_drive);
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info->logon_server = talloc_strdup(info, netbios_name);
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NT_STATUS_HAVE_NO_MEMORY(info->logon_server);
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info->last_logon = 0;
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info->last_logoff = 0;
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info->acct_expiry = 0;
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info->last_password_change = 0;
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info->allow_password_change = 0;
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info->force_password_change = 0;
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info->logon_count = 0;
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info->bad_password_count = 0;
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info->acct_flags = ACB_NORMAL;
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info->authenticated = false;
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*_user_info_dc = user_info_dc;
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return NT_STATUS_OK;
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}
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