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samba-mirror/source3/libnet/libnet_samsync_display.c

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/*
Unix SMB/CIFS implementation.
dump the remote SAM using rpc samsync operations
Copyright (C) Andrew Tridgell 2002
Copyright (C) Tim Potter 2001,2002
Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2005
Modified by Volker Lendecke 2002
Copyright (C) Jeremy Allison 2005.
Copyright (C) Guenther Deschner 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_samsync.h"
#include "passdb.h"
static void display_group_mem_info(uint32_t rid,
struct netr_DELTA_GROUP_MEMBER *r)
{
int i;
d_printf("Group mem %u: ", rid);
for (i=0; i< r->num_rids; i++) {
d_printf("%u ", r->rids[i]);
}
d_printf("\n");
}
static void display_alias_info(uint32_t rid,
struct netr_DELTA_ALIAS *r)
{
d_printf("Alias '%s' ", r->alias_name.string);
d_printf("desc='%s' rid=%u\n", r->description.string, r->rid);
}
static void display_alias_mem(uint32_t rid,
struct netr_DELTA_ALIAS_MEMBER *r)
{
int i;
d_printf("Alias rid %u: ", rid);
for (i=0; i< r->sids.num_sids; i++) {
d_printf("%s ", sid_string_tos(r->sids.sids[i].sid));
}
d_printf("\n");
}
static void display_account_info(uint32_t rid,
struct netr_DELTA_USER *r)
{
fstring hex_nt_passwd, hex_lm_passwd;
Fix net rpc vampire, based on an *amazing* piece of debugging work by "Cooper S. Blake" <the_analogkid@yahoo.com>. "I believe I have found two bugs in the 3.2 code and one bug that carried on to the 3.3 branch. In the 3.2 code, everything is located in the utils/net_rpc_samsync.c file. What I believe is the first problem is that fetch_database() is calling samsync_fix_delta_array() with rid_crypt set to true, which means the password hashes are unencrypted from the RID encryption. However, I believe this call is redundant, and the corresponding call for samdump has rid_crypt set to false. So I think the rid_crypt param should be false in fetch_database(). If you follow the code, it makes its way to sam_account_from_delta() where the password hashes are decrypted a second time by calling sam_pwd_hash(). I believe this is what is scrambling my passwords. These methods were refactored somewhere in the 3.3 branch. Now the net_rpc_samsync.c class calls rpc_vampire_internals, which calls libnet/libnet_samsync.c, which calls samsync_fix_delta_array() with rid_crypt always set to false. I think that's correct. But the second bug has carried through in the sam_account_from_delta() function: 208 if (memcmp(r->ntpassword.hash, zero_buf, 16) != 0) { 209 sam_pwd_hash(r->rid, r->ntpassword.hash, lm_passwd, 0); 210 pdb_set_lanman_passwd(account, lm_passwd, PDB_CHANGED); 211 } 212 213 if (memcmp(r->lmpassword.hash, zero_buf, 16) != 0) { 214 sam_pwd_hash(r->rid, r->lmpassword.hash, nt_passwd, 0); 215 pdb_set_nt_passwd(account, nt_passwd, PDB_CHANGED); If you look closely you'll see that the nt hash is going into the lm_passwd variable and the decrypted value is being set in the lanman hash, and the lanman hash is being decrypted and put into the nt hash field. So the LanMan and NT hashes look like they're being put in the opposite fields." Fix this by removing the rid_crypt parameter. Jeremy.
2008-10-23 00:21:23 +04:00
uchar zero_buf[16];
memset(zero_buf, '\0', sizeof(zero_buf));
/* Decode hashes from password hash (if they are not NULL) */
if (memcmp(r->lmpassword.hash, zero_buf, 16) != 0) {
Fix net rpc vampire, based on an *amazing* piece of debugging work by "Cooper S. Blake" <the_analogkid@yahoo.com>. "I believe I have found two bugs in the 3.2 code and one bug that carried on to the 3.3 branch. In the 3.2 code, everything is located in the utils/net_rpc_samsync.c file. What I believe is the first problem is that fetch_database() is calling samsync_fix_delta_array() with rid_crypt set to true, which means the password hashes are unencrypted from the RID encryption. However, I believe this call is redundant, and the corresponding call for samdump has rid_crypt set to false. So I think the rid_crypt param should be false in fetch_database(). If you follow the code, it makes its way to sam_account_from_delta() where the password hashes are decrypted a second time by calling sam_pwd_hash(). I believe this is what is scrambling my passwords. These methods were refactored somewhere in the 3.3 branch. Now the net_rpc_samsync.c class calls rpc_vampire_internals, which calls libnet/libnet_samsync.c, which calls samsync_fix_delta_array() with rid_crypt always set to false. I think that's correct. But the second bug has carried through in the sam_account_from_delta() function: 208 if (memcmp(r->ntpassword.hash, zero_buf, 16) != 0) { 209 sam_pwd_hash(r->rid, r->ntpassword.hash, lm_passwd, 0); 210 pdb_set_lanman_passwd(account, lm_passwd, PDB_CHANGED); 211 } 212 213 if (memcmp(r->lmpassword.hash, zero_buf, 16) != 0) { 214 sam_pwd_hash(r->rid, r->lmpassword.hash, nt_passwd, 0); 215 pdb_set_nt_passwd(account, nt_passwd, PDB_CHANGED); If you look closely you'll see that the nt hash is going into the lm_passwd variable and the decrypted value is being set in the lanman hash, and the lanman hash is being decrypted and put into the nt hash field. So the LanMan and NT hashes look like they're being put in the opposite fields." Fix this by removing the rid_crypt parameter. Jeremy.
2008-10-23 00:21:23 +04:00
pdb_sethexpwd(hex_lm_passwd, r->lmpassword.hash, r->acct_flags);
} else {
pdb_sethexpwd(hex_lm_passwd, NULL, 0);
}
if (memcmp(r->ntpassword.hash, zero_buf, 16) != 0) {
Fix net rpc vampire, based on an *amazing* piece of debugging work by "Cooper S. Blake" <the_analogkid@yahoo.com>. "I believe I have found two bugs in the 3.2 code and one bug that carried on to the 3.3 branch. In the 3.2 code, everything is located in the utils/net_rpc_samsync.c file. What I believe is the first problem is that fetch_database() is calling samsync_fix_delta_array() with rid_crypt set to true, which means the password hashes are unencrypted from the RID encryption. However, I believe this call is redundant, and the corresponding call for samdump has rid_crypt set to false. So I think the rid_crypt param should be false in fetch_database(). If you follow the code, it makes its way to sam_account_from_delta() where the password hashes are decrypted a second time by calling sam_pwd_hash(). I believe this is what is scrambling my passwords. These methods were refactored somewhere in the 3.3 branch. Now the net_rpc_samsync.c class calls rpc_vampire_internals, which calls libnet/libnet_samsync.c, which calls samsync_fix_delta_array() with rid_crypt always set to false. I think that's correct. But the second bug has carried through in the sam_account_from_delta() function: 208 if (memcmp(r->ntpassword.hash, zero_buf, 16) != 0) { 209 sam_pwd_hash(r->rid, r->ntpassword.hash, lm_passwd, 0); 210 pdb_set_lanman_passwd(account, lm_passwd, PDB_CHANGED); 211 } 212 213 if (memcmp(r->lmpassword.hash, zero_buf, 16) != 0) { 214 sam_pwd_hash(r->rid, r->lmpassword.hash, nt_passwd, 0); 215 pdb_set_nt_passwd(account, nt_passwd, PDB_CHANGED); If you look closely you'll see that the nt hash is going into the lm_passwd variable and the decrypted value is being set in the lanman hash, and the lanman hash is being decrypted and put into the nt hash field. So the LanMan and NT hashes look like they're being put in the opposite fields." Fix this by removing the rid_crypt parameter. Jeremy.
2008-10-23 00:21:23 +04:00
pdb_sethexpwd(hex_nt_passwd, r->ntpassword.hash, r->acct_flags);
} else {
pdb_sethexpwd(hex_nt_passwd, NULL, 0);
}
printf("%s:%d:%s:%s:%s:LCT-0\n",
r->account_name.string,
r->rid, hex_lm_passwd, hex_nt_passwd,
pdb_encode_acct_ctrl(r->acct_flags, NEW_PW_FORMAT_SPACE_PADDED_LEN));
}
static void display_domain_info(struct netr_DELTA_DOMAIN *r)
{
time_t u_logout;
struct netr_AcctLockStr *lockstr = NULL;
NTSTATUS status;
TALLOC_CTX *mem_ctx = talloc_tos();
status = pull_netr_AcctLockStr(mem_ctx, &r->account_lockout,
&lockstr);
if (!NT_STATUS_IS_OK(status)) {
d_printf("failed to pull account lockout string: %s\n",
nt_errstr(status));
}
u_logout = uint64s_nt_time_to_unix_abs((const uint64 *)&r->force_logoff_time);
d_printf("Domain name: %s\n", r->domain_name.string);
d_printf("Minimal Password Length: %d\n", r->min_password_length);
d_printf("Password History Length: %d\n", r->password_history_length);
d_printf("Force Logoff: %d\n", (int)u_logout);
d_printf("Max Password Age: %s\n", display_time(r->max_password_age));
d_printf("Min Password Age: %s\n", display_time(r->min_password_age));
if (lockstr) {
d_printf("Lockout Time: %s\n", display_time((NTTIME)lockstr->lockout_duration));
d_printf("Lockout Reset Time: %s\n", display_time((NTTIME)lockstr->reset_count));
d_printf("Bad Attempt Lockout: %d\n", lockstr->bad_attempt_lockout);
}
d_printf("User must logon to change password: %d\n", r->logon_to_chgpass);
}
static void display_group_info(uint32_t rid, struct netr_DELTA_GROUP *r)
{
d_printf("Group '%s' ", r->group_name.string);
d_printf("desc='%s', rid=%u\n", r->description.string, rid);
}
static void display_delete_group(uint32_t rid)
{
d_printf("Delete Group '%d'\n", rid);
}
static void display_rename_group(uint32_t rid, struct netr_DELTA_RENAME *r)
{
d_printf("Rename Group '%d' ", rid);
d_printf("Rename Group: %s -> %s\n",
r->OldName.string, r->NewName.string);
}
static void display_delete_user(uint32_t rid)
{
d_printf("Delete User '%d'\n", rid);
}
static void display_rename_user(uint32_t rid, struct netr_DELTA_RENAME *r)
{
d_printf("Rename User '%d' ", rid);
d_printf("Rename User: %s -> %s\n",
r->OldName.string, r->NewName.string);
}
static void display_delete_alias(uint32_t rid)
{
d_printf("Delete Alias '%d'\n", rid);
}
static void display_rename_alias(uint32_t rid, struct netr_DELTA_RENAME *r)
{
d_printf("Rename Alias '%d' ", rid);
d_printf("Rename Alias: %s -> %s\n",
r->OldName.string, r->NewName.string);
}
static NTSTATUS display_sam_entry(TALLOC_CTX *mem_ctx,
enum netr_SamDatabaseID database_id,
struct netr_DELTA_ENUM *r,
struct samsync_context *ctx)
{
union netr_DELTA_UNION u = r->delta_union;
union netr_DELTA_ID_UNION id = r->delta_id_union;
switch (r->delta_type) {
case NETR_DELTA_DOMAIN:
display_domain_info(u.domain);
break;
case NETR_DELTA_GROUP:
display_group_info(id.rid, u.group);
break;
case NETR_DELTA_DELETE_GROUP:
display_delete_group(id.rid);
break;
case NETR_DELTA_RENAME_GROUP:
display_rename_group(id.rid, u.rename_group);
break;
case NETR_DELTA_USER:
display_account_info(id.rid, u.user);
break;
case NETR_DELTA_DELETE_USER:
display_delete_user(id.rid);
break;
case NETR_DELTA_RENAME_USER:
display_rename_user(id.rid, u.rename_user);
break;
case NETR_DELTA_GROUP_MEMBER:
display_group_mem_info(id.rid, u.group_member);
break;
case NETR_DELTA_ALIAS:
display_alias_info(id.rid, u.alias);
break;
case NETR_DELTA_DELETE_ALIAS:
display_delete_alias(id.rid);
break;
case NETR_DELTA_RENAME_ALIAS:
display_rename_alias(id.rid, u.rename_alias);
break;
case NETR_DELTA_ALIAS_MEMBER:
display_alias_mem(id.rid, u.alias_member);
break;
case NETR_DELTA_POLICY:
printf("Policy: %s\n",
sid_string_dbg(id.sid));
break;
case NETR_DELTA_TRUSTED_DOMAIN:
printf("Trusted Domain: %s\n",
u.trusted_domain->domain_name.string);
break;
case NETR_DELTA_DELETE_TRUST:
printf("Delete Trust: %s\n",
sid_string_dbg(id.sid));
break;
case NETR_DELTA_ACCOUNT:
printf("Account: %s\n",
sid_string_dbg(id.sid));
break;
case NETR_DELTA_DELETE_ACCOUNT:
printf("Delete Account: %s\n",
sid_string_dbg(id.sid));
break;
case NETR_DELTA_SECRET:
printf("Secret: %s\n",
id.name);
break;
case NETR_DELTA_DELETE_SECRET:
printf("Delete Secret: %s\n",
id.name);
break;
case NETR_DELTA_DELETE_GROUP2:
printf("Delete Group2: %s\n",
u.delete_group->account_name);
break;
case NETR_DELTA_DELETE_USER2:
printf("Delete User2: %s\n",
u.delete_user->account_name);
break;
case NETR_DELTA_MODIFY_COUNT:
printf("sam sequence update: 0x%016llx\n",
(unsigned long long) *u.modified_count);
break;
#if 0
/* The following types are recognised but not handled */
case NETR_DELTA_POLICY:
d_printf("NETR_DELTA_POLICY not handled\n");
break;
case NETR_DELTA_TRUSTED_DOMAIN:
d_printf("NETR_DELTA_TRUSTED_DOMAIN not handled\n");
break;
case NETR_DELTA_ACCOUNT:
d_printf("NETR_DELTA_ACCOUNT not handled\n");
break;
case NETR_DELTA_SECRET:
d_printf("NETR_DELTA_SECRET not handled\n");
break;
case NETR_DELTA_MODIFY_COUNT:
d_printf("NETR_DELTA_MODIFY_COUNT not handled\n");
break;
case NETR_DELTA_DELETE_TRUST:
d_printf("NETR_DELTA_DELETE_TRUST not handled\n");
break;
case NETR_DELTA_DELETE_ACCOUNT:
d_printf("NETR_DELTA_DELETE_ACCOUNT not handled\n");
break;
case NETR_DELTA_DELETE_SECRET:
d_printf("NETR_DELTA_DELETE_SECRET not handled\n");
break;
case NETR_DELTA_DELETE_GROUP2:
d_printf("NETR_DELTA_DELETE_GROUP2 not handled\n");
break;
case NETR_DELTA_DELETE_USER2:
d_printf("NETR_DELTA_DELETE_USER2 not handled\n");
break;
#endif
default:
printf("unknown delta type 0x%02x\n",
r->delta_type);
break;
}
return NT_STATUS_OK;
}
static NTSTATUS display_sam_entries(TALLOC_CTX *mem_ctx,
enum netr_SamDatabaseID database_id,
struct netr_DELTA_ENUM_ARRAY *r,
uint64_t *sequence_num,
struct samsync_context *ctx)
{
int i;
for (i = 0; i < r->num_deltas; i++) {
display_sam_entry(mem_ctx, database_id, &r->delta_enum[i],
ctx);
}
return NT_STATUS_OK;
}
const struct samsync_ops libnet_samsync_display_ops = {
.process_objects = display_sam_entries,
};