samba/CVE-2020-10730-5.patch

93 lines
3.5 KiB
Diff

From 01cce3d1fc69f04cdc237425b2f2ad1f2ac973d4 Mon Sep 17 00:00:00 2001
From: Andrew Bartlett <abartlet@samba.org>
Date: Wed, 6 May 2020 16:19:01 +1200
Subject: [PATCH 05/22] CVE-2020-10730: selftest: Add test to show that VLV and
paged_results are incompatible
As tested against Windows Server 1709
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14364
Signed-off-by: Andrew Bartlett <abartlet@samba.org>
Reviewed-by: Gary Lockyer <gary@catalyst.net.nz>
---
source4/dsdb/tests/python/asq.py | 27 +++++++++++++++++++++++++++
source4/dsdb/tests/python/vlv.py | 23 +++++++++++++++++++++++
2 files changed, 50 insertions(+)
diff --git a/source4/dsdb/tests/python/asq.py b/source4/dsdb/tests/python/asq.py
index 1c93a45f131..33973d66c37 100644
--- a/source4/dsdb/tests/python/asq.py
+++ b/source4/dsdb/tests/python/asq.py
@@ -189,6 +189,33 @@ class ASQLDAPTest(samba.tests.TestCase):
self.assertIn(ldb.Dn(self.ldb, str(group)),
self.members)
+ def test_asq_vlv_paged(self):
+ """Testing ASQ behaviour with VLV and paged_results set.
+
+ ASQ is very strange, it turns a BASE search into a search for
+ all the objects pointed to by the specified attribute,
+ returning multiple entries!
+
+ Thankfully combining both of these gives
+ unavailable-critical-extension against Windows 1709
+
+ """
+
+ sort_control = "server_sort:1:0:cn"
+
+ try:
+ msgs = self.ldb.search(base=self.top_dn,
+ scope=ldb.SCOPE_BASE,
+ attrs=["objectGUID", "cn", "member"],
+ controls=["asq:1:member",
+ sort_control,
+ "vlv:1:20:20:11:0",
+ "paged_results:1:1024"])
+ self.fail("should have failed with LDAP_UNAVAILABLE_CRITICAL_EXTENSION")
+ except ldb.LdbError as e:
+ (enum, estr) = e.args
+ self.assertEqual(enum, ldb.ERR_UNSUPPORTED_CRITICAL_EXTENSION)
+
if "://" not in url:
if os.path.isfile(url):
url = "tdb://%s" % url
diff --git a/source4/dsdb/tests/python/vlv.py b/source4/dsdb/tests/python/vlv.py
index 2efcaa5e7a3..f3c603e3a39 100644
--- a/source4/dsdb/tests/python/vlv.py
+++ b/source4/dsdb/tests/python/vlv.py
@@ -1644,6 +1644,29 @@ class PagedResultsTests(TestsWithUserOU):
page_size=len(self.users))
self.assertEqual(results, set_2[ps*2:])
+ def test_vlv_paged(self):
+ """Testing behaviour with VLV and paged_results set.
+
+ A strange combination, certainly
+
+ Thankfully combining both of these gives
+ unavailable-critical-extension against Windows 1709
+
+ """
+ sort_control = "server_sort:1:0:cn"
+
+ try:
+ msgs = self.ldb.search(base=self.base_dn,
+ scope=ldb.SCOPE_SUBTREE,
+ attrs=["objectGUID", "cn", "member"],
+ controls=["vlv:1:20:20:11:0",
+ sort_control,
+ "paged_results:1:1024"])
+ self.fail("should have failed with LDAP_UNAVAILABLE_CRITICAL_EXTENSION")
+ except ldb.LdbError as e:
+ (enum, estr) = e.args
+ self.assertEqual(enum, ldb.ERR_UNSUPPORTED_CRITICAL_EXTENSION)
+
if "://" not in host:
if os.path.isfile(host):
--
2.17.1