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authorAndrew Bartlett <abartlet@samba.org>2019-11-26 15:50:35 +1300
committerKarolin Seeger <kseeger@samba.org>2020-01-10 11:56:20 +0100
commit9e6b09e0fd52c664de7f0589074fef872c753fa2 (patch)
treee46f96ee42a7a7f6f6546590be49ef29b9208457
parent9ac2b09fa5a2de44967a0b190918825e7dca8d53 (diff)
downloadsamba-9e6b09e0fd52c664de7f0589074fef872c753fa2.tar.gz
CVE-2019-14902 repl_meta_data: Fix issue where inherited Security Descriptors were not replicated.
BUG: https://bugzilla.samba.org/show_bug.cgi?id=12497 Signed-off-by: Andrew Bartlett <abartlet@samba.org>
-rw-r--r--selftest/knownfail.d/repl_secdesc1
-rw-r--r--source4/dsdb/samdb/ldb_modules/repl_meta_data.c22
2 files changed, 21 insertions, 2 deletions
diff --git a/selftest/knownfail.d/repl_secdesc b/selftest/knownfail.d/repl_secdesc
index 7d554ff237a..13a9ce458dd 100644
--- a/selftest/knownfail.d/repl_secdesc
+++ b/selftest/knownfail.d/repl_secdesc
@@ -1,3 +1,2 @@
^samba4.drs.repl_secdesc.python\(.*\).repl_secdesc.ReplAclTestCase.test_acl_inheirt_renamed_object_in_conflict
-^samba4.drs.repl_secdesc.python\(.*\).repl_secdesc.ReplAclTestCase.test_acl_inherit_existing_object
^samba4.drs.repl_secdesc.python\(.*\).repl_secdesc.ReplAclTestCase.test_acl_inheirt_renamed_child_object
diff --git a/source4/dsdb/samdb/ldb_modules/repl_meta_data.c b/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
index 52ff3d75ee2..9812ded99fb 100644
--- a/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
+++ b/source4/dsdb/samdb/ldb_modules/repl_meta_data.c
@@ -5527,6 +5527,15 @@ static int replmd_replicated_apply_add(struct replmd_replicated_request *ar)
replmd_ldb_message_sort(msg, ar->schema);
if (!remote_isDeleted) {
+ /*
+ * Ensure any local ACL inheritence is applied from
+ * the parent object.
+ *
+ * This is needed because descriptor is above
+ * repl_meta_data in the module stack, so this will
+ * not be trigered 'naturally' by the flow of
+ * operations.
+ */
ret = dsdb_module_schedule_sd_propagation(ar->module,
ar->objs->partition_dn,
msg->dn, true);
@@ -6309,9 +6318,20 @@ static int replmd_replicated_apply_merge(struct replmd_replicated_request *ar)
}
if (sd_updated && !isDeleted) {
+ /*
+ * This is an existing object, so there is no need to
+ * inherit from the parent, but we must inherit any
+ * incoming changes to our child objects.
+ *
+ * This is needed because descriptor is above
+ * repl_meta_data in the module stack, so this will
+ * not be trigered 'naturally' by the flow of
+ * operations.
+ */
ret = dsdb_module_schedule_sd_propagation(ar->module,
ar->objs->partition_dn,
- msg->dn, true);
+ msg->dn,
+ false);
if (ret != LDB_SUCCESS) {
return ldb_operr(ldb);
}