krb5/SOURCES/Put-KDB-authdata-first.patch

46 lines
1.7 KiB
Diff

From 684821fc68fd27ddcc5f809a37819edd35365a9d Mon Sep 17 00:00:00 2001
From: Isaac Boukris <iboukris@gmail.com>
Date: Sat, 1 Feb 2020 16:13:30 +0100
Subject: [PATCH] Put KDB authdata first
Windows services, as well as some versions of Samba, may refuse
tickets if the PAC is not in the first AD-IF-RELEVANT container. In
fetch_kdb_authdata(), change the merge order so that authdata from the
KDB module appears first.
[ghudson@mit.edu: added comment and clarified commit message]
ticket: 8872 (new)
tags: pullup
target_version: 1.18
target_version: 1.17-next
(cherry picked from commit 331fa4bdd34263ea20667a0f51338cb84357fdaa)
(cherry picked from commit 1678270de3fda699114122447b1f06b08fb4e53e)
---
src/kdc/kdc_authdata.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/kdc/kdc_authdata.c b/src/kdc/kdc_authdata.c
index 1b067cb0b..616c3eadc 100644
--- a/src/kdc/kdc_authdata.c
+++ b/src/kdc/kdc_authdata.c
@@ -383,11 +383,14 @@ fetch_kdb_authdata(krb5_context context, unsigned int flags,
if (ret)
return (ret == KRB5_PLUGIN_OP_NOTSUPP) ? 0 : ret;
- /* Add the KDB authdata to the ticket, without copying or filtering. */
- ret = merge_authdata(context, db_authdata,
- &enc_tkt_reply->authorization_data, FALSE, FALSE);
+ /* Put the KDB authdata first in the ticket. A successful merge places the
+ * combined list in db_authdata and releases the old ticket authdata. */
+ ret = merge_authdata(context, enc_tkt_reply->authorization_data,
+ &db_authdata, FALSE, FALSE);
if (ret)
krb5_free_authdata(context, db_authdata);
+ else
+ enc_tkt_reply->authorization_data = db_authdata;
return ret;
}