kadm5_c_get_principal() should check the return code from kadm5_ret_principal_ent(). As it doesn't it assumes success when there is none and can lead to potential vulnerability. Fix this. Reported by: rtm@csail.mit.edu MFC after: 3 days
85 lines
2.8 KiB
C
85 lines
2.8 KiB
C
/*
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* Copyright (c) 1997 - 2000, 2006 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include "kadm5_locl.h"
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RCSID("$Id$");
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kadm5_ret_t
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kadm5_c_get_principal(void *server_handle,
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krb5_principal princ,
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kadm5_principal_ent_t out,
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uint32_t mask)
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{
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kadm5_client_context *context = server_handle;
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kadm5_ret_t ret;
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krb5_storage *sp;
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unsigned char buf[1024];
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int32_t tmp;
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krb5_data reply;
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ret = _kadm5_connect(server_handle);
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if(ret)
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return ret;
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sp = krb5_storage_from_mem(buf, sizeof(buf));
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if (sp == NULL) {
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krb5_clear_error_message(context->context);
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return ENOMEM;
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}
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krb5_store_int32(sp, kadm_get);
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krb5_store_principal(sp, princ);
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krb5_store_int32(sp, mask);
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ret = _kadm5_client_send(context, sp);
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krb5_storage_free(sp);
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if(ret)
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return ret;
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ret = _kadm5_client_recv(context, &reply);
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if (ret)
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return ret;
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sp = krb5_storage_from_data (&reply);
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if (sp == NULL) {
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krb5_clear_error_message(context->context);
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krb5_data_free (&reply);
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return ENOMEM;
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}
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krb5_ret_int32(sp, &tmp);
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ret = tmp;
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krb5_clear_error_message(context->context);
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if(ret == 0)
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ret = kadm5_ret_principal_ent(sp, out);
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krb5_storage_free(sp);
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krb5_data_free (&reply);
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return ret;
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}
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