A malformed principal will cause kadmind to segfault. The PR addresses only when chpass is requested but delete is also affected. Fix both. PR: 268002 Reported by: Robert Morris <rtm@lcs.mit.edu> MFC after: 3 days
205 lines
5.6 KiB
C
205 lines
5.6 KiB
C
/*
|
|
* Copyright (c) 1997-2006 Kungliga Tekniska Högskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "kadm5_locl.h"
|
|
|
|
RCSID("$Id$");
|
|
|
|
static kadm5_ret_t
|
|
change(void *server_handle,
|
|
krb5_principal princ,
|
|
const char *password,
|
|
int cond)
|
|
{
|
|
kadm5_server_context *context = server_handle;
|
|
hdb_entry_ex ent;
|
|
kadm5_ret_t ret;
|
|
Key *keys;
|
|
size_t num_keys;
|
|
int existsp = 0;
|
|
|
|
memset(&ent, 0, sizeof(ent));
|
|
ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
|
|
if(ret)
|
|
return ret;
|
|
|
|
ret = context->db->hdb_fetch_kvno(context->context, context->db, princ,
|
|
HDB_F_DECRYPT|HDB_F_GET_ANY|HDB_F_ADMIN_DATA, 0, &ent);
|
|
if(ret)
|
|
goto out;
|
|
|
|
if (context->db->hdb_capability_flags & HDB_CAP_F_HANDLE_PASSWORDS) {
|
|
ret = context->db->hdb_password(context->context, context->db,
|
|
&ent, password, cond);
|
|
if (ret)
|
|
goto out2;
|
|
} else {
|
|
|
|
num_keys = ent.entry.keys.len;
|
|
keys = ent.entry.keys.val;
|
|
|
|
ent.entry.keys.len = 0;
|
|
ent.entry.keys.val = NULL;
|
|
|
|
ret = _kadm5_set_keys(context, &ent.entry, password);
|
|
if(ret) {
|
|
_kadm5_free_keys (context->context, num_keys, keys);
|
|
goto out2;
|
|
}
|
|
|
|
if (cond)
|
|
existsp = _kadm5_exists_keys (ent.entry.keys.val,
|
|
ent.entry.keys.len,
|
|
keys, num_keys);
|
|
_kadm5_free_keys (context->context, num_keys, keys);
|
|
|
|
if (existsp) {
|
|
ret = KADM5_PASS_REUSE;
|
|
krb5_set_error_message(context->context, ret,
|
|
"Password reuse forbidden");
|
|
goto out2;
|
|
}
|
|
|
|
ret = hdb_seal_keys(context->context, context->db, &ent.entry);
|
|
if (ret)
|
|
goto out2;
|
|
}
|
|
ent.entry.kvno++;
|
|
|
|
ret = _kadm5_set_modifier(context, &ent.entry);
|
|
if(ret)
|
|
goto out2;
|
|
|
|
ret = _kadm5_bump_pw_expire(context, &ent.entry);
|
|
if (ret)
|
|
goto out2;
|
|
|
|
ret = context->db->hdb_store(context->context, context->db,
|
|
HDB_F_REPLACE, &ent);
|
|
if (ret)
|
|
goto out2;
|
|
|
|
kadm5_log_modify (context,
|
|
&ent.entry,
|
|
KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME |
|
|
KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION |
|
|
KADM5_TL_DATA);
|
|
|
|
out2:
|
|
hdb_free_entry(context->context, &ent);
|
|
out:
|
|
context->db->hdb_close(context->context, context->db);
|
|
return _kadm5_error_code(ret);
|
|
}
|
|
|
|
|
|
|
|
/*
|
|
* change the password of `princ' to `password' if it's not already that.
|
|
*/
|
|
|
|
kadm5_ret_t
|
|
kadm5_s_chpass_principal_cond(void *server_handle,
|
|
krb5_principal princ,
|
|
const char *password)
|
|
{
|
|
return change (server_handle, princ, password, 1);
|
|
}
|
|
|
|
/*
|
|
* change the password of `princ' to `password'
|
|
*/
|
|
|
|
kadm5_ret_t
|
|
kadm5_s_chpass_principal(void *server_handle,
|
|
krb5_principal princ,
|
|
const char *password)
|
|
{
|
|
return change (server_handle, princ, password, 0);
|
|
}
|
|
|
|
/*
|
|
* change keys for `princ' to `keys'
|
|
*/
|
|
|
|
kadm5_ret_t
|
|
kadm5_s_chpass_principal_with_key(void *server_handle,
|
|
krb5_principal princ,
|
|
int n_key_data,
|
|
krb5_key_data *key_data)
|
|
{
|
|
kadm5_server_context *context = server_handle;
|
|
hdb_entry_ex ent;
|
|
kadm5_ret_t ret;
|
|
|
|
memset(&ent, 0, sizeof(ent));
|
|
ret = context->db->hdb_open(context->context, context->db, O_RDWR, 0);
|
|
if(ret)
|
|
return ret;
|
|
ret = context->db->hdb_fetch_kvno(context->context, context->db, princ, 0,
|
|
HDB_F_GET_ANY|HDB_F_ADMIN_DATA, &ent);
|
|
if(ret)
|
|
goto out;
|
|
ret = _kadm5_set_keys2(context, &ent.entry, n_key_data, key_data);
|
|
if(ret)
|
|
goto out2;
|
|
ent.entry.kvno++;
|
|
ret = _kadm5_set_modifier(context, &ent.entry);
|
|
if(ret)
|
|
goto out2;
|
|
ret = _kadm5_bump_pw_expire(context, &ent.entry);
|
|
if (ret)
|
|
goto out2;
|
|
|
|
ret = hdb_seal_keys(context->context, context->db, &ent.entry);
|
|
if (ret)
|
|
goto out2;
|
|
|
|
ret = context->db->hdb_store(context->context, context->db,
|
|
HDB_F_REPLACE, &ent);
|
|
if (ret)
|
|
goto out2;
|
|
|
|
kadm5_log_modify (context,
|
|
&ent.entry,
|
|
KADM5_PRINCIPAL | KADM5_MOD_NAME | KADM5_MOD_TIME |
|
|
KADM5_KEY_DATA | KADM5_KVNO | KADM5_PW_EXPIRATION |
|
|
KADM5_TL_DATA);
|
|
|
|
out2:
|
|
hdb_free_entry(context->context, &ent);
|
|
out:
|
|
context->db->hdb_close(context->context, context->db);
|
|
return _kadm5_error_code(ret);
|
|
}
|