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HEIMDAL:kdc: let check_PAC() to verify the incoming server and krbtgt cheksums

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For a normal TGS-REQ they're both signed with krbtgt key.
But for S4U2Proxy requests which ask for contrained delegation,
the keys differ.

metze
This commit is contained in:
Stefan Metzmacher 2011-03-25 14:57:42 +01:00
parent 2873429555
commit cc0ff48f28
1 changed files with 7 additions and 4 deletions
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11
source4/heimdal/kdc/krb5tgs.c
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@ -282,8 +282,9 @@ check_PAC(krb5_context context,
hdb_entry_ex *client,
hdb_entry_ex *server,
hdb_entry_ex *krbtgt,
const EncryptionKey *server_key,
const EncryptionKey *server_check_key,
const EncryptionKey *krbtgt_check_key,
const EncryptionKey *server_sign_key,
const EncryptionKey *krbtgt_sign_key,
EncTicketPart *tkt,
krb5_data *rspac,
@ -328,7 +329,7 @@ check_PAC(krb5_context context,
ret = krb5_pac_verify(context, pac, tkt->authtime,
client_principal,
krbtgt_check_key, NULL);
server_check_key, krbtgt_check_key);
if (ret) {
krb5_pac_free(context, pac);
return ret;
@ -351,7 +352,7 @@ check_PAC(krb5_context context,
*signedpath = 1;
ret = _krb5_pac_sign(context, pac, tkt->authtime,
client_principal,
server_key, krbtgt_sign_key, rspac);
server_sign_key, krbtgt_sign_key, rspac);
}
krb5_pac_free(context, pac);
@ -1789,7 +1790,9 @@ server_lookup:
}
ret = check_PAC(context, config, cp,
client, server, krbtgt, ekey, &tkey_check->key, &tkey_sign->key,
client, server, krbtgt,
&tkey_check->key, &tkey_check->key,
ekey, &tkey_sign->key,
tgt, &rspac, &signedpath);
if (ret) {
const char *msg = krb5_get_error_message(context, ret);