samba/CVE-2018-16857-9.patch

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2019-12-25 16:07:00 +08:00
From 60b2cd50f4d0554cc5ca8c53b2d1fa89e56a6d06 Mon Sep 17 00:00:00 2001
From: Tim Beale <timbeale@catalyst.net.nz>
Date: Tue, 13 Nov 2018 13:22:41 +1300
Subject: [PATCH 17/17] CVE-2018-16857 dsdb/util: Add better default
lockOutObservationWindow
Clearly the lockOutObservationWindow value is important, and using a
default value of zero doesn't work very well.
This patch adds a better default value (the domain default setting of 30
minutes).
BUG: https://bugzilla.samba.org/show_bug.cgi?id=13683
Signed-off-by: Tim Beale <timbeale@catalyst.net.nz>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
---
source4/dsdb/common/util.c | 10 +++++++---
1 file changed, 7 insertions(+), 3 deletions(-)
diff --git a/source4/dsdb/common/util.c b/source4/dsdb/common/util.c
index 8d863f85a29..18f700370a3 100644
--- a/source4/dsdb/common/util.c
+++ b/source4/dsdb/common/util.c
@@ -56,6 +56,9 @@
*/
#include "dsdb/samdb/ldb_modules/util.h"
+/* default is 30 minutes: -1e7 * 30 * 60 */
+#define DEFAULT_OBSERVATION_WINDOW -18000000000
+
/*
search the sam for the specified attributes in a specific domain, filter on
objectSid being in domain_sid.
@@ -5363,7 +5366,7 @@ int samdb_result_effective_badPwdCount(struct ldb_context *sam_ldb,
lockOutObservationWindow =
ldb_msg_find_attr_as_int64(res->msgs[0],
"msDS-LockoutObservationWindow",
- 0);
+ DEFAULT_OBSERVATION_WINDOW);
talloc_free(res);
} else {
@@ -5402,10 +5405,11 @@ static int64_t get_lockout_observation_window(struct ldb_message *domain_msg,
if (pso_msg != NULL) {
return ldb_msg_find_attr_as_int64(pso_msg,
"msDS-LockoutObservationWindow",
- 0);
+ DEFAULT_OBSERVATION_WINDOW);
} else {
return ldb_msg_find_attr_as_int64(domain_msg,
- "lockOutObservationWindow", 0);
+ "lockOutObservationWindow",
+ DEFAULT_OBSERVATION_WINDOW);
}
}
--
2.17.1