diff options
| -rw-r--r-- | libcli/samsync/decrypt.c | 174 | ||||
| -rw-r--r-- | libcli/samsync/samsync.h | 26 | ||||
| -rw-r--r-- | source3/libnet/libnet_samsync.c | 164 | ||||
| -rw-r--r-- | source4/libnet/libnet_samsync.c | 136 |
4 files changed, 209 insertions, 291 deletions
diff --git a/libcli/samsync/decrypt.c b/libcli/samsync/decrypt.c new file mode 100644 index 0000000000..2181c6ff6b --- /dev/null +++ b/libcli/samsync/decrypt.c @@ -0,0 +1,174 @@ +/* + Unix SMB/CIFS implementation. + + Extract the user/system database from a remote SamSync server + + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005 + Copyright (C) Guenther Deschner <gd@samba.org> 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" +#include "libnet/libnet.h" +#include "../lib/crypto/crypto.h" +#include "../libcli/auth/libcli_auth.h" +#include "../libcli/samsync/samsync.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, + struct creds_CredentialState *creds, + 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; + unsigned char zero_buf[16]; + + memset(zero_buf, '\0', sizeof(zero_buf)); + + /* Note that win2000 may send us all zeros + * for the hashes if it doesn't + * think this channel is secure enough. */ + if (user->lm_password_present) { + if (memcmp(user->lmpassword.hash, zero_buf, 16) != 0) { + sam_rid_crypt(rid, user->lmpassword.hash, lm_hash.hash, 0); + } else { + memset(lm_hash.hash, '\0', sizeof(lm_hash.hash)); + } + user->lmpassword = lm_hash; + } + + if (user->nt_password_present) { + if (memcmp(user->ntpassword.hash, zero_buf, 16) != 0) { + sam_rid_crypt(rid, user->ntpassword.hash, nt_hash.hash, 0); + } else { + memset(nt_hash.hash, '\0', sizeof(nt_hash.hash)); + } + 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; + creds_arcfour_crypt(creds, data.data, data.length); + user->user_private_info.SensitiveData = data.data; + user->user_private_info.DataLength = data.length; + + ndr_err = ndr_pull_struct_blob(&data, mem_ctx, NULL, &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); + } + + /* Note that win2000 may send us all zeros + * for the hashes if it doesn't + * think this channel is secure enough. */ + if (keys.keys.keys2.lmpassword.length == 16) { + if (memcmp(keys.keys.keys2.lmpassword.pwd.hash, + zero_buf, 16) != 0) { + sam_rid_crypt(rid, + keys.keys.keys2.lmpassword.pwd.hash, + lm_hash.hash, 0); + } else { + memset(lm_hash.hash, '\0', sizeof(lm_hash.hash)); + } + user->lmpassword = lm_hash; + user->lm_password_present = true; + } + if (keys.keys.keys2.ntpassword.length == 16) { + if (memcmp(keys.keys.keys2.ntpassword.pwd.hash, + zero_buf, 16) != 0) { + sam_rid_crypt(rid, + keys.keys.keys2.ntpassword.pwd.hash, + nt_hash.hash, 0); + } else { + memset(nt_hash.hash, '\0', sizeof(nt_hash.hash)); + } + user->ntpassword = nt_hash; + 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, + struct creds_CredentialState *creds, + enum netr_SamDatabaseID database, + struct netr_DELTA_ENUM *delta) +{ + struct netr_DELTA_SECRET *secret = delta->delta_union.secret; + creds_arcfour_crypt(creds, secret->current_cipher.cipher_data, + secret->current_cipher.maxlen); + + creds_arcfour_crypt(creds, secret->old_cipher.cipher_data, + secret->old_cipher.maxlen); + + 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 + */ + +NTSTATUS samsync_fix_delta(TALLOC_CTX *mem_ctx, + struct creds_CredentialState *creds, + 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, + creds, + database_id, + delta); + break; + case NETR_DELTA_SECRET: + + status = fix_secret(mem_ctx, + creds, + database_id, + delta); + break; + default: + break; + } + + return status; +} + diff --git a/libcli/samsync/samsync.h b/libcli/samsync/samsync.h new file mode 100644 index 0000000000..19c797816a --- /dev/null +++ b/libcli/samsync/samsync.h @@ -0,0 +1,26 @@ +/* + Unix SMB/CIFS implementation. + + Extract the user/system database from a remote SamSync server + + Copyright (C) Andrew Bartlett <abartlet@samba.org> 2004-2005 + Copyright (C) Guenther Deschner <gd@samba.org> 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/>. +*/ + +NTSTATUS samsync_fix_delta(TALLOC_CTX *mem_ctx, + struct creds_CredentialState *creds, + enum netr_SamDatabaseID database_id, + struct netr_DELTA_ENUM *delta); diff --git a/source3/libnet/libnet_samsync.c b/source3/libnet/libnet_samsync.c index b89f4efaf5..8928f1c052 100644 --- a/source3/libnet/libnet_samsync.c +++ b/source3/libnet/libnet_samsync.c @@ -24,163 +24,16 @@ #include "includes.h" #include "libnet/libnet.h" #include "../lib/crypto/crypto.h" +#include "../libcli/samsync/samsync.h" #include "../libcli/auth/libcli_auth.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, - 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; - unsigned char zero_buf[16]; - - memset(zero_buf, '\0', sizeof(zero_buf)); - - /* Note that win2000 may send us all zeros - * for the hashes if it doesn't - * think this channel is secure enough. */ - if (user->lm_password_present) { - if (memcmp(user->lmpassword.hash, zero_buf, 16) != 0) { - sam_rid_crypt(rid, user->lmpassword.hash, lm_hash.hash, 0); - } else { - memset(lm_hash.hash, '\0', sizeof(lm_hash.hash)); - } - user->lmpassword = lm_hash; - } - - if (user->nt_password_present) { - if (memcmp(user->ntpassword.hash, zero_buf, 16) != 0) { - sam_rid_crypt(rid, user->ntpassword.hash, nt_hash.hash, 0); - } else { - memset(nt_hash.hash, '\0', sizeof(nt_hash.hash)); - } - 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; - arcfour_crypt_blob(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, NULL, &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); - } - - /* Note that win2000 may send us all zeros - * for the hashes if it doesn't - * think this channel is secure enough. */ - if (keys.keys.keys2.lmpassword.length == 16) { - if (memcmp(keys.keys.keys2.lmpassword.pwd.hash, - zero_buf, 16) != 0) { - sam_rid_crypt(rid, - keys.keys.keys2.lmpassword.pwd.hash, - lm_hash.hash, 0); - } else { - memset(lm_hash.hash, '\0', sizeof(lm_hash.hash)); - } - user->lmpassword = lm_hash; - user->lm_password_present = true; - } - if (keys.keys.keys2.ntpassword.length == 16) { - if (memcmp(keys.keys.keys2.ntpassword.pwd.hash, - zero_buf, 16) != 0) { - sam_rid_crypt(rid, - keys.keys.keys2.ntpassword.pwd.hash, - nt_hash.hash, 0); - } else { - memset(nt_hash.hash, '\0', sizeof(nt_hash.hash)); - } - user->ntpassword = nt_hash; - 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; - - arcfour_crypt_blob(secret->current_cipher.cipher_data, - secret->current_cipher.maxlen, - session_key); - - arcfour_crypt_blob(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, - 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, - 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 */ static NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx, - DATA_BLOB *session_key, + struct creds_CredentialState *creds, enum netr_SamDatabaseID database_id, struct netr_DELTA_ENUM_ARRAY *r) { @@ -190,7 +43,7 @@ static NTSTATUS samsync_fix_delta_array(TALLOC_CTX *mem_ctx, for (i = 0; i < r->num_deltas; i++) { status = samsync_fix_delta(mem_ctx, - session_key, + creds, database_id, &r->delta_enum[i]); if (!NT_STATUS_IS_OK(status)) { @@ -347,14 +200,13 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx, struct netr_Authenticator return_authenticator; uint16_t restart_state = 0; uint32_t sync_context = 0; - DATA_BLOB session_key; ZERO_STRUCT(return_authenticator); do { struct netr_DELTA_ENUM_ARRAY *delta_enum_array = NULL; - netlogon_creds_client_step(ctx->cli->dc, &credential); + creds_client_authenticator(ctx->cli->dc, &credential); if (ctx->single_object_replication && !ctx->force_full_replication) { @@ -395,8 +247,8 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx, } /* Check returned credentials. */ - if (!netlogon_creds_client_check(ctx->cli->dc, - &return_authenticator.cred)) { + if (!creds_client_check(ctx->cli->dc, + &return_authenticator.cred)) { DEBUG(0,("credentials chain check failed\n")); return NT_STATUS_ACCESS_DENIED; } @@ -405,10 +257,8 @@ static NTSTATUS libnet_samsync_delta(TALLOC_CTX *mem_ctx, break; } - session_key = data_blob_const(ctx->cli->dc->sess_key, 16); - samsync_fix_delta_array(mem_ctx, - &session_key, + ctx->cli->dc, database_id, delta_enum_array); diff --git a/source4/libnet/libnet_samsync.c b/source4/libnet/libnet_samsync.c index 51e49e94a0..80111fe757 100644 --- a/source4/libnet/libnet_samsync.c +++ b/source4/libnet/libnet_samsync.c @@ -23,6 +23,7 @@ #include "includes.h" #include "libnet/libnet.h" #include "libcli/auth/libcli_auth.h" +#include "../libcli/samsync/samsync.h" #include "auth/gensec/gensec.h" #include "auth/credentials/credentials.h" #include "auth/gensec/schannel_proto.h" @@ -30,139 +31,6 @@ #include "librpc/gen_ndr/ndr_netlogon_c.h" #include "param/param.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, - struct creds_CredentialState *creds, - bool rid_crypt, - enum netr_SamDatabaseID database, - struct netr_DELTA_ENUM *delta, - char **error_string) -{ - - 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_rid_crypt(rid, user->lmpassword.hash, lm_hash.hash, 0); - user->lmpassword = lm_hash; - } - - if (user->nt_password_present) { - sam_rid_crypt(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; - creds_arcfour_crypt(creds, data.data, data.length); - user->user_private_info.SensitiveData = data.data; - user->user_private_info.DataLength = data.length; - - ndr_err = ndr_pull_struct_blob(&data, mem_ctx, NULL, &keys, (ndr_pull_flags_fn_t)ndr_pull_netr_USER_KEYS); - if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) { - *error_string = talloc_asprintf(mem_ctx, "Failed to parse Sensitive Data for %s:", username); - dump_data(10, data.data, data.length); - return ndr_map_error2ntstatus(ndr_err); - } - - if (keys.keys.keys2.lmpassword.length == 16) { - if (rid_crypt) { - sam_rid_crypt(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_rid_crypt(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, - struct creds_CredentialState *creds, - enum netr_SamDatabaseID database, - struct netr_DELTA_ENUM *delta, - char **error_string) -{ - struct netr_DELTA_SECRET *secret = delta->delta_union.secret; - creds_arcfour_crypt(creds, secret->current_cipher.cipher_data, - secret->current_cipher.maxlen); - - creds_arcfour_crypt(creds, secret->old_cipher.cipher_data, - secret->old_cipher.maxlen); - - 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 fix_delta(TALLOC_CTX *mem_ctx, - struct creds_CredentialState *creds, - bool rid_crypt, - enum netr_SamDatabaseID database, - struct netr_DELTA_ENUM *delta, - char **error_string) -{ - NTSTATUS nt_status = NT_STATUS_OK; - *error_string = NULL; - switch (delta->delta_type) { - case NETR_DELTA_USER: - { - nt_status = fix_user(mem_ctx, - creds, - rid_crypt, - database, - delta, - error_string); - break; - } - case NETR_DELTA_SECRET: - { - nt_status = fix_secret(mem_ctx, - creds, - database, - delta, - error_string); - break; - } - default: - break; - } - return nt_status; -} - NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx, struct libnet_SamSync *r) { NTSTATUS nt_status, dbsync_nt_status; @@ -177,7 +45,7 @@ NTSTATUS libnet_SamSync_netlogon(struct libnet_context *ctx, TALLOC_CTX *mem_ctx struct libnet_RpcConnect *c; struct libnet_SamSync_state *state; const enum netr_SamDatabaseID database_ids[] = {SAM_DATABASE_DOMAIN, SAM_DATABASE_BUILTIN, SAM_DATABASE_PRIVS}; - int i; +f int i; samsync_ctx = talloc_named(mem_ctx, 0, "SamSync top context"); |