samba/backport-0006-CVE-2020-25722-samdb-Fill-in-isCriticalSystemObject-.patch
haochenstar 8378df4821 fix CVE-2020-25717,CVE-2020-25718,CVE-2020-25719,CVE-2020-25721,CVE-2020-25722,CVE-2016-2124,CVE-2021-3738
(cherry picked from commit aee849c6c0708056f62f6445e3b5274d1cec6408)
2022-01-19 11:41:35 +08:00

43 lines
1.6 KiB
Diff

From 55d821ca8b5baaa69f88127b228bd4906e2cee68 Mon Sep 17 00:00:00 2001
From: Andrew Bartlett <abartlet@samba.org>
Date: Thu, 21 Oct 2021 13:02:42 +1300
Subject: [PATCH 072/266] CVE-2020-25722 samdb: Fill in isCriticalSystemObject
on any account type change
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14753
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Douglas Bagnall <douglas.bagnall@catalyst.net.nz>
Conflict:remove test
Reference:https://gitlab.com/samba-team/samba/-/commit/55d821ca8b5baaa69f88127b228bd4906e2cee68
---
source4/dsdb/samdb/ldb_modules/samldb.c | 10 ++++++++--
1 files changed, 8 insertions(+), 2 deletions(-)
delete mode 100644 selftest/knownfail.d/sam-isCriticalSystemObject
diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c
index aeef663d2f0..5352af1099f 100644
--- a/source4/dsdb/samdb/ldb_modules/samldb.c
+++ b/source4/dsdb/samdb/ldb_modules/samldb.c
@@ -2621,8 +2621,14 @@ static int samldb_user_account_control_change(struct samldb_ctx *ac)
el->flags = LDB_FLAG_MOD_REPLACE;
}
- /* "isCriticalSystemObject" might be set/changed */
- if (old_is_critical != new_is_critical) {
+ /*
+ * "isCriticalSystemObject" might be set/changed
+ *
+ * Even a change from UF_NORMAL_ACCOUNT (implicitly FALSE) to
+ * UF_WORKSTATION_TRUST_ACCOUNT (actually FALSE) triggers
+ * creating the attribute.
+ */
+ if (old_is_critical != new_is_critical || old_atype != new_atype) {
ret = ldb_msg_add_string(ac->msg, "isCriticalSystemObject",
new_is_critical ? "TRUE": "FALSE");
if (ret != LDB_SUCCESS) {
--
2.23.0