The branch, v3-2-test has been updated via 1a22e975dd1255f3557c1cd873d877aa35822afc (commit) via 5b68be96996a710988b1fd1c176cd5dff0f2c6af (commit) from 8800afafedccd43e425463045c05934d381e178d (commit)
http://gitweb.samba.org/?p=samba.git;a=shortlog;h=v3-2-test - Log ----------------------------------------------------------------- commit 1a22e975dd1255f3557c1cd873d877aa35822afc Author: Günther Deschner <[EMAIL PROTECTED]> Date: Fri Jun 13 12:20:01 2008 +0200 net: Fix bug #5542 (samsync contains empty passwords). Guenther commit 5b68be96996a710988b1fd1c176cd5dff0f2c6af Author: Günther Deschner <[EMAIL PROTECTED]> Date: Fri Jun 13 11:57:09 2008 +0200 samsync: add samsync_fix_delta_array() This code is vastly based on samba4 code. Guenther ----------------------------------------------------------------------- Summary of changes: source/Makefile.in | 1 + source/libnet/libnet_samsync.c | 188 ++++++++++++++++++++++++++++++++++++++++ source/utils/net.h | 1 + source/utils/net_ads.c | 2 - source/utils/net_rpc_samsync.c | 27 ++++++ 5 files changed, 217 insertions(+), 2 deletions(-) create mode 100644 source/libnet/libnet_samsync.c Changeset truncated at 500 lines: diff --git a/source/Makefile.in b/source/Makefile.in index cb72b94..04ff7cc 100644 --- a/source/Makefile.in +++ b/source/Makefile.in @@ -869,6 +869,7 @@ SMBCONFTORT_OBJ = $(SMBCONFTORT_OBJ0) \ $(POPT_LIB_OBJ) LIBNET_OBJ = libnet/libnet_join.o \ + libnet/libnet_samsync.o \ librpc/gen_ndr/ndr_libnet_join.o NET_OBJ1 = utils/net.o utils/net_ads.o utils/net_help.o \ diff --git a/source/libnet/libnet_samsync.c b/source/libnet/libnet_samsync.c new file mode 100644 index 0000000..e45a845 --- /dev/null +++ b/source/libnet/libnet_samsync.c @@ -0,0 +1,188 @@ +/* + Unix SMB/CIFS implementation. + + Extract the user/system database from a remote SamSync server + + Copyright (C) Andrew Bartlett <[EMAIL PROTECTED]> 2004-2005 + Copyright (C) Guenther Deschner <[EMAIL PROTECTED]> 2008 + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + + +#include "includes.h" + +/** + * Decrypt and extract the user's passwords. + * + * The writes decrypted (no longer 'RID encrypted' or arcfour encrypted) + * passwords back into the structure + */ + +static NTSTATUS fix_user(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + + uint32_t rid = delta->delta_id_union.rid; + struct netr_DELTA_USER *user = delta->delta_union.user; + struct samr_Password lm_hash; + struct samr_Password nt_hash; + const char *username = user->account_name.string; + + if (rid_crypt) { + if (user->lm_password_present) { + sam_pwd_hash(rid, user->lmpassword.hash, lm_hash.hash, 0); + user->lmpassword = lm_hash; + } + + if (user->nt_password_present) { + sam_pwd_hash(rid, user->ntpassword.hash, nt_hash.hash, 0); + user->ntpassword = nt_hash; + } + } + + if (user->user_private_info.SensitiveData) { + DATA_BLOB data; + struct netr_USER_KEYS keys; + enum ndr_err_code ndr_err; + data.data = user->user_private_info.SensitiveData; + data.length = user->user_private_info.DataLength; + SamOEMhashBlob(data.data, data.length, session_key); + user->user_private_info.SensitiveData = data.data; + user->user_private_info.DataLength = data.length; + + ndr_err = ndr_pull_struct_blob(&data, mem_ctx, &keys, + (ndr_pull_flags_fn_t)ndr_pull_netr_USER_KEYS); + if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { + dump_data(10, data.data, data.length); + return ndr_map_error2ntstatus(ndr_err); + } + + if (keys.keys.keys2.lmpassword.length == 16) { + if (rid_crypt) { + sam_pwd_hash(rid, + keys.keys.keys2.lmpassword.pwd.hash, + lm_hash.hash, 0); + user->lmpassword = lm_hash; + } else { + user->lmpassword = keys.keys.keys2.lmpassword.pwd; + } + user->lm_password_present = true; + } + if (keys.keys.keys2.ntpassword.length == 16) { + if (rid_crypt) { + sam_pwd_hash(rid, + keys.keys.keys2.ntpassword.pwd.hash, + nt_hash.hash, 0); + user->ntpassword = nt_hash; + } else { + user->ntpassword = keys.keys.keys2.ntpassword.pwd; + } + user->nt_password_present = true; + } + /* TODO: rid decrypt history fields */ + } + return NT_STATUS_OK; +} + +/** + * Decrypt and extract the secrets + * + * The writes decrypted secrets back into the structure + */ +static NTSTATUS fix_secret(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_SECRET *secret = delta->delta_union.secret; + + SamOEMhashBlob(secret->current_cipher.cipher_data, + secret->current_cipher.maxlen, + session_key); + + SamOEMhashBlob(secret->old_cipher.cipher_data, + secret->old_cipher.maxlen, + session_key); + + return NT_STATUS_OK; +} + +/** + * Fix up the delta, dealing with encryption issues so that the final + * callback need only do the printing or application logic + */ + +static NTSTATUS samsync_fix_delta(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta) +{ + NTSTATUS status = NT_STATUS_OK; + + switch (delta->delta_type) { + case NETR_DELTA_USER: + + status = fix_user(mem_ctx, + session_key, + rid_crypt, + database_id, + delta); + break; + case NETR_DELTA_SECRET: + + status = fix_secret(mem_ctx, + session_key, + database_id, + delta); + break; + default: + break; + } + + return status; +} + +/** + * Fix up the delta, dealing with encryption issues so that the final + * callback need only do the printing or application logic + */ + +NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx, + DATA_BLOB *session_key, + bool rid_crypt, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM_ARRAY *r) +{ + NTSTATUS status; + int i; + + for (i = 0; i < r->num_deltas; i++) { + + status = samsync_fix_delta(mem_ctx, + session_key, + rid_crypt, + database_id, + &r->delta_enum[i]); + if (!NT_STATUS_IS_OK(status)) { + return status; + } + } + + return NT_STATUS_OK; +} diff --git a/source/utils/net.h b/source/utils/net.h index 68ed179..f043668 100644 --- a/source/utils/net.h +++ b/source/utils/net.h @@ -23,6 +23,7 @@ */ #include "lib/netapi/netapi.h" +#include "libnet/libnet.h" typedef NTSTATUS (*rpc_command_fn)(const DOM_SID *, const char *, diff --git a/source/utils/net_ads.c b/source/utils/net_ads.c index 9c6a548..ef6b151 100644 --- a/source/utils/net_ads.c +++ b/source/utils/net_ads.c @@ -23,8 +23,6 @@ #include "includes.h" #include "utils/net.h" -#include "libnet/libnet.h" - #ifdef HAVE_ADS int net_ads_usage(int argc, const char **argv) diff --git a/source/utils/net_rpc_samsync.c b/source/utils/net_rpc_samsync.c index 06cde2a..ac0739e 100644 --- a/source/utils/net_rpc_samsync.c +++ b/source/utils/net_rpc_samsync.c @@ -336,6 +336,7 @@ static void dump_database(struct rpc_pipe_client *pipe_hnd, struct netr_Authenticator return_authenticator; uint16_t restart_state = 0; uint32_t sync_context = 0; + DATA_BLOB session_key; ZERO_STRUCT(return_authenticator); @@ -386,6 +387,14 @@ static void dump_database(struct rpc_pipe_client *pipe_hnd, break; } + session_key = data_blob_const(pipe_hnd->dc->sess_key, 16); + + samsync_fix_delta_array(mem_ctx, + &session_key, + true, + database_id, + delta_enum_array); + /* Display results */ for (i = 0; i < delta_enum_array->num_deltas; i++) { display_sam_entry(&delta_enum_array->delta_enum[i]); @@ -1197,6 +1206,7 @@ static NTSTATUS fetch_database(struct rpc_pipe_client *pipe_hnd, uint32 db_type, enum netr_SamDatabaseID database_id = db_type; uint16_t restart_state = 0; uint32_t sync_context = 0; + DATA_BLOB session_key; if (!(mem_ctx = talloc_init("fetch_database"))) return NT_STATUS_NO_MEMORY; @@ -1243,6 +1253,14 @@ static NTSTATUS fetch_database(struct rpc_pipe_client *pipe_hnd, uint32 db_type, break; } + session_key = data_blob_const(pipe_hnd->dc->sess_key, 16); + + samsync_fix_delta_array(mem_ctx, + &session_key, + true, + database_id, + delta_enum_array); + for (i = 0; i < delta_enum_array->num_deltas; i++) { fetch_sam_entry(&delta_enum_array->delta_enum[i], dom_sid); } @@ -2018,6 +2036,7 @@ static NTSTATUS fetch_database_to_ldif(struct rpc_pipe_client *pipe_hnd, enum netr_SamDatabaseID database_id = db_type; uint16_t restart_state = 0; uint32_t sync_context = 0; + DATA_BLOB session_key; /* Set up array for mapping accounts to groups */ /* Array element is the group rid */ @@ -2150,6 +2169,14 @@ static NTSTATUS fetch_database_to_ldif(struct rpc_pipe_client *pipe_hnd, break; } + session_key = data_blob_const(pipe_hnd->dc->sess_key, 16); + + samsync_fix_delta_array(mem_ctx, + &session_key, + true, + database_id, + delta_enum_array); + num_deltas = delta_enum_array->num_deltas; /* Re-allocate memory for groupmap and accountmap arrays */ -- Samba Shared Repository