From bd8fdeb2d1ece6db6dfe9fdc024f3a81440c1c0c Mon Sep 17 00:00:00 2001
From: Mark Andrews <marka@isc.org>
Date: Tue, 18 Jan 2022 00:19:47 +1100
Subject: [PATCH] Add tests for forwarder cache poisoning scenarios
- Check that an NS in an authority section returned from a forwarder
which is above the name in a configured "forward first" or "forward
only" zone (i.e., net/NS in a response from a forwarder configured for
local.net) is not cached.
- Test that a DNAME for a parent domain will not be cached when sent
in a response from a forwarder configured to answer for a child.
- Check that glue is rejected if its name falls below that of zone
configured locally.
- Check that an extra out-of-bailiwick data in the answer section is
not cached (this was already working correctly, but was not explicitly
tested before).
(cherry picked from commit bf3fffff67e1de78e9387a93674d471bf4291604)
(cherry picked from commit 59d1eb3ff810145c8098a0a4fbf93ef4380ad739)
---
bin/tests/system/forward/ans11/ans.py | 136 ++++++++++++++++++
bin/tests/system/forward/clean.sh | 2 +
bin/tests/system/forward/ns1/diditwork.net.db | 22 +++
bin/tests/system/forward/ns1/named.conf.in | 20 +++
bin/tests/system/forward/ns1/net.example.lll | 15 ++
bin/tests/system/forward/ns1/spoofed.net.db | 22 +++
bin/tests/system/forward/ns1/sub.local.net.db | 22 +++
bin/tests/system/forward/ns10/fakenet.zone | 17 +++
bin/tests/system/forward/ns10/fakenet2.zone | 15 ++
.../system/forward/ns10/fakesublocalnet.zone | 15 ++
.../system/forward/ns10/fakesublocaltld.zone | 15 ++
bin/tests/system/forward/ns10/named.conf.in | 53 +++++++
bin/tests/system/forward/ns10/net.example.lll | 15 ++
bin/tests/system/forward/ns10/spoofednet.zone | 16 +++
bin/tests/system/forward/ns2/tld.db | 6 +
bin/tests/system/forward/ns4/named.conf.in | 5 +
bin/tests/system/forward/ns4/sibling.tld.db | 22 +++
bin/tests/system/forward/ns8/named.conf.in | 5 +
bin/tests/system/forward/ns8/sub.local.tld.db | 15 ++
bin/tests/system/forward/ns9/local.net.db | 16 +++
bin/tests/system/forward/ns9/local.tld.db | 15 ++
bin/tests/system/forward/ns9/named1.conf.in | 67 +++++++++
bin/tests/system/forward/ns9/named2.conf.in | 70 +++++++++
bin/tests/system/forward/ns9/named3.conf.in | 50 +++++++
bin/tests/system/forward/ns9/named4.conf.in | 47 ++++++
bin/tests/system/forward/ns9/root.db | 13 ++
bin/tests/system/forward/setup.sh | 2 +
bin/tests/system/forward/tests.sh | 122 ++++++++++++++++
bin/tests/system/ifconfig.sh | 8 +-
29 files changed, 844 insertions(+), 4 deletions(-)
create mode 100644 bin/tests/system/forward/ans11/ans.py
create mode 100644 bin/tests/system/forward/ns1/diditwork.net.db
create mode 100644 bin/tests/system/forward/ns1/net.example.lll
create mode 100644 bin/tests/system/forward/ns1/spoofed.net.db
create mode 100644 bin/tests/system/forward/ns1/sub.local.net.db
create mode 100644 bin/tests/system/forward/ns10/fakenet.zone
create mode 100644 bin/tests/system/forward/ns10/fakenet2.zone
create mode 100644 bin/tests/system/forward/ns10/fakesublocalnet.zone
create mode 100644 bin/tests/system/forward/ns10/fakesublocaltld.zone
create mode 100644 bin/tests/system/forward/ns10/named.conf.in
create mode 100644 bin/tests/system/forward/ns10/net.example.lll
create mode 100644 bin/tests/system/forward/ns10/spoofednet.zone
create mode 100644 bin/tests/system/forward/ns4/sibling.tld.db
create mode 100644 bin/tests/system/forward/ns8/sub.local.tld.db
create mode 100644 bin/tests/system/forward/ns9/local.net.db
create mode 100644 bin/tests/system/forward/ns9/local.tld.db
create mode 100644 bin/tests/system/forward/ns9/named1.conf.in
create mode 100644 bin/tests/system/forward/ns9/named2.conf.in
create mode 100644 bin/tests/system/forward/ns9/named3.conf.in
create mode 100644 bin/tests/system/forward/ns9/named4.conf.in
create mode 100644 bin/tests/system/forward/ns9/root.db
diff --git a/bin/tests/system/forward/ans11/ans.py b/bin/tests/system/forward/ans11/ans.py
new file mode 100644
index 0000000000..1d35b3d3f1
--- /dev/null
+++ b/bin/tests/system/forward/ans11/ans.py
@@ -0,0 +1,136 @@
+# Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+#
+# SPDX-License-Identifier: MPL-2.0
+#
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, you can obtain one at https://mozilla.org/MPL/2.0/.
+#
+# See the COPYRIGHT file distributed with this work for additional
+# information regarding copyright ownership.
+
+from __future__ import print_function
+import os
+import sys
+import signal
+import socket
+import select
+from datetime import datetime, timedelta
+import time
+import functools
+
+import dns, dns.message, dns.query, dns.flags
+from dns.rdatatype import *
+from dns.rdataclass import *
+from dns.rcode import *
+from dns.name import *
+
+# Log query to file
+def logquery(type, qname):
+ with open("qlog", "a") as f:
+ f.write("%s %s\n", type, qname)
+
+############################################################################
+# Respond to a DNS query.
+############################################################################
+def create_response(msg):
+ m = dns.message.from_wire(msg)
+ qname = m.question[0].name.to_text()
+ rrtype = m.question[0].rdtype
+ typename = dns.rdatatype.to_text(rrtype)
+
+ with open("query.log", "a") as f:
+ f.write("%s %s\n" % (typename, qname))
+ print("%s %s" % (typename, qname), end=" ")
+
+ r = dns.message.make_response(m)
+ r.set_rcode(NOERROR)
+ if rrtype == A:
+ tld=qname.split('.')[-2] + '.'
+ ns="local." + tld
+ r.answer.append(dns.rrset.from_text(qname, 300, IN, A, "10.53.0.11"))
+ r.answer.append(dns.rrset.from_text(tld, 300, IN, NS, "local." + tld))
+ r.additional.append(dns.rrset.from_text(ns, 300, IN, A, "10.53.0.11"))
+ elif rrtype == NS:
+ r.answer.append(dns.rrset.from_text(qname, 300, IN, NS, "."))
+ elif rrtype == SOA:
+ r.answer.append(dns.rrset.from_text(qname, 300, IN, SOA, ". . 0 0 0 0 0"))
+ else:
+ r.authority.append(dns.rrset.from_text(qname, 300, IN, SOA, ". . 0 0 0 0 0"))
+ r.flags |= dns.flags.AA
+ return r
+
+def sigterm(signum, frame):
+ print ("Shutting down now...")
+ os.remove('ans.pid')
+ running = False
+ sys.exit(0)
+
+############################################################################
+# Main
+#
+# Set up responder and control channel, open the pid file, and start
+# the main loop, listening for queries on the query channel or commands
+# on the control channel and acting on them.
+############################################################################
+ip4 = "10.53.0.11"
+ip6 = "fd92:7065:b8e:ffff::11"
+
+try: port=int(os.environ['PORT'])
+except: port=5300
+
+query4_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+query4_socket.bind((ip4, port))
+havev6 = True
+try:
+ query6_socket = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+ try:
+ query6_socket.bind((ip6, port))
+ except:
+ query6_socket.close()
+ havev6 = False
+except:
+ havev6 = False
+signal.signal(signal.SIGTERM, sigterm)
+
+f = open('ans.pid', 'w')
+pid = os.getpid()
+print (pid, file=f)
+f.close()
+
+running = True
+
+print ("Listening on %s port %d" % (ip4, port))
+if havev6:
+ print ("Listening on %s port %d" % (ip6, port))
+print ("Ctrl-c to quit")
+
+if havev6:
+ input = [query4_socket, query6_socket]
+else:
+ input = [query4_socket]
+
+while running:
+ try:
+ inputready, outputready, exceptready = select.select(input, [], [])
+ except select.error as e:
+ break
+ except socket.error as e:
+ break
+ except KeyboardInterrupt:
+ break
+
+ for s in inputready:
+ if s == query4_socket or s == query6_socket:
+ print ("Query received on %s" %
+ (ip4 if s == query4_socket else ip6), end=" ")
+ # Handle incoming queries
+ msg = s.recvfrom(65535)
+ rsp = create_response(msg[0])
+ if rsp:
+ print(dns.rcode.to_text(rsp.rcode()))
+ s.sendto(rsp.to_wire(), msg[1])
+ else:
+ print("NO RESPONSE")
+ if not running:
+ break
diff --git a/bin/tests/system/forward/clean.sh b/bin/tests/system/forward/clean.sh
index bc04eadb2c..b65b092680 100644
--- a/bin/tests/system/forward/clean.sh
+++ b/bin/tests/system/forward/clean.sh
@@ -10,10 +10,12 @@
#
# Clean up after forward tests.
#
+rm -f ./ans11/query.log
rm -f ./dig.out.*
rm -f ./*/named.conf
rm -f ./*/named.memstats
rm -f ./*/named.run ./*/named.run.prev
+rm -f ./*/named_dump.db
rm -f ./ns*/named.lock
rm -f ./ns*/managed-keys.bind*
rm -f ./ns1/root.db ./ns1/root.db.signed
diff --git a/bin/tests/system/forward/ns1/diditwork.net.db b/bin/tests/system/forward/ns1/diditwork.net.db
new file mode 100644
index 0000000000..fd9a46eb0c
--- /dev/null
+++ b/bin/tests/system/forward/ns1/diditwork.net.db
@@ -0,0 +1,22 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 300 ; 5 minutes
+@ IN SOA ns root (
+ 2000082401 ; serial
+ 1800 ; refresh (30 minutes)
+ 1800 ; retry (30 minutes)
+ 1814400 ; expire (3 weeks)
+ 3600 ; minimum (1 hour)
+ )
+ NS ns
+ TXT "recursed"
+ns A 10.53.0.1
diff --git a/bin/tests/system/forward/ns1/named.conf.in b/bin/tests/system/forward/ns1/named.conf.in
index 4aef4e55e5..c5fb2eb172 100644
--- a/bin/tests/system/forward/ns1/named.conf.in
+++ b/bin/tests/system/forward/ns1/named.conf.in
@@ -63,3 +63,23 @@ zone "sld.tld" {
zone "example6" {
type forward;
};
+
+zone "diditwork.net" {
+ type primary;
+ file "diditwork.net.db";
+};
+
+zone "spoofed.net" {
+ type primary;
+ file "spoofed.net.db";
+};
+
+zone "sub.local.net" {
+ type primary;
+ file "sub.local.net.db";
+};
+
+zone "net.example.lll" {
+ type master;
+ file "net.example.lll";
+};
diff --git a/bin/tests/system/forward/ns1/net.example.lll b/bin/tests/system/forward/ns1/net.example.lll
new file mode 100644
index 0000000000..ba0804fd75
--- /dev/null
+++ b/bin/tests/system/forward/ns1/net.example.lll
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+net.example.lll. SOA . . 0 0 0 0 0
+net.example.lll. NS attackSecureDomain.net.
+didItWork.net.example.lll. TXT "if you can see this record the attack worked"
diff --git a/bin/tests/system/forward/ns1/spoofed.net.db b/bin/tests/system/forward/ns1/spoofed.net.db
new file mode 100644
index 0000000000..eedc46f5c0
--- /dev/null
+++ b/bin/tests/system/forward/ns1/spoofed.net.db
@@ -0,0 +1,22 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 300 ; 5 minutes
+@ IN SOA ns root (
+ 2000082401 ; serial
+ 1800 ; refresh (30 minutes)
+ 1800 ; retry (30 minutes)
+ 1814400 ; expire (3 weeks)
+ 3600 ; minimum (1 hour)
+ )
+ NS ns
+ns A 10.53.0.1
+sub TXT "recursed"
diff --git a/bin/tests/system/forward/ns1/sub.local.net.db b/bin/tests/system/forward/ns1/sub.local.net.db
new file mode 100644
index 0000000000..fd9a46eb0c
--- /dev/null
+++ b/bin/tests/system/forward/ns1/sub.local.net.db
@@ -0,0 +1,22 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 300 ; 5 minutes
+@ IN SOA ns root (
+ 2000082401 ; serial
+ 1800 ; refresh (30 minutes)
+ 1800 ; retry (30 minutes)
+ 1814400 ; expire (3 weeks)
+ 3600 ; minimum (1 hour)
+ )
+ NS ns
+ TXT "recursed"
+ns A 10.53.0.1
diff --git a/bin/tests/system/forward/ns10/fakenet.zone b/bin/tests/system/forward/ns10/fakenet.zone
new file mode 100644
index 0000000000..b655a32459
--- /dev/null
+++ b/bin/tests/system/forward/ns10/fakenet.zone
@@ -0,0 +1,17 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+net. SOA . . 0 0 0 0 0
+net. NS attackSecureDomain.net.
+attackSecureDomain.net. A 10.53.0.10
+didItWork.net. TXT "if you can see this record the attack worked"
+ns.spoofed.net. A 10.53.0.10
diff --git a/bin/tests/system/forward/ns10/fakenet2.zone b/bin/tests/system/forward/ns10/fakenet2.zone
new file mode 100644
index 0000000000..cd1e6e9944
--- /dev/null
+++ b/bin/tests/system/forward/ns10/fakenet2.zone
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+net2. SOA . . 0 0 0 0 0
+net2. NS attackSecureDomain.net.
+net2. DNAME net.example.lll.
diff --git a/bin/tests/system/forward/ns10/fakesublocalnet.zone b/bin/tests/system/forward/ns10/fakesublocalnet.zone
new file mode 100644
index 0000000000..160b5332b2
--- /dev/null
+++ b/bin/tests/system/forward/ns10/fakesublocalnet.zone
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+sub.local.net. SOA . . 0 0 0 0 0
+sub.local.net. NS ns.spoofed.net.
+sub.local.net. TXT "if you see this attacker overrode local delegation"
diff --git a/bin/tests/system/forward/ns10/fakesublocaltld.zone b/bin/tests/system/forward/ns10/fakesublocaltld.zone
new file mode 100644
index 0000000000..f78cbc77f6
--- /dev/null
+++ b/bin/tests/system/forward/ns10/fakesublocaltld.zone
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+sub.local.tld. 3600 IN SOA . . 0 0 0 0 0
+sub.local.tld. 3600 IN NS ns.sub.local.tld.
+sub.local.tld. 3600 IN TXT bad
+ns.sub.local.tld. 3600 IN A 10.53.0.8
diff --git a/bin/tests/system/forward/ns10/named.conf.in b/bin/tests/system/forward/ns10/named.conf.in
new file mode 100644
index 0000000000..1f318dd867
--- /dev/null
+++ b/bin/tests/system/forward/ns10/named.conf.in
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+options {
+ query-source address 10.53.0.10;
+ notify-source 10.53.0.10;
+ transfer-source 10.53.0.10;
+ port @PORT@;
+ pid-file "named.pid";
+ listen-on { 10.53.0.10; };
+ listen-on-v6 { none; };
+ minimal-responses no;
+};
+
+zone "net." {
+ type master;
+ file "fakenet.zone";
+};
+
+zone "spoofed.net." {
+ type master;
+ file "spoofednet.zone";
+};
+
+zone "sub.local.net." {
+ type master;
+ file "fakesublocalnet.zone";
+};
+
+zone "net2" {
+ type master;
+ file "fakenet2.zone";
+};
+
+zone "net.example.lll" {
+ type master;
+ file "net.example.lll";
+};
+
+zone "sub.local.tld." {
+ type master;
+ file "fakesublocaltld.zone";
+};
diff --git a/bin/tests/system/forward/ns10/net.example.lll b/bin/tests/system/forward/ns10/net.example.lll
new file mode 100644
index 0000000000..ba0804fd75
--- /dev/null
+++ b/bin/tests/system/forward/ns10/net.example.lll
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+net.example.lll. SOA . . 0 0 0 0 0
+net.example.lll. NS attackSecureDomain.net.
+didItWork.net.example.lll. TXT "if you can see this record the attack worked"
diff --git a/bin/tests/system/forward/ns10/spoofednet.zone b/bin/tests/system/forward/ns10/spoofednet.zone
new file mode 100644
index 0000000000..fb70a4372b
--- /dev/null
+++ b/bin/tests/system/forward/ns10/spoofednet.zone
@@ -0,0 +1,16 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+spoofed.net. SOA . . 0 0 0 0 0
+spoofed.net. NS ns.spoofed.net.
+ns.spoofed.net. A 10.53.0.10
+spoofed.net. TXT "this record is clearly spoofed"
diff --git a/bin/tests/system/forward/ns2/tld.db b/bin/tests/system/forward/ns2/tld.db
index 61b6569b07..819210dc05 100644
--- a/bin/tests/system/forward/ns2/tld.db
+++ b/bin/tests/system/forward/ns2/tld.db
@@ -10,3 +10,9 @@ $TTL 300 ; 5 minutes
ns A 10.53.0.2
sld NS ns.sld
ns.sld A 10.53.0.1
+local NS ns.local
+ns.local A 10.53.0.9
+sibling NS ns.sibling
+ns.sibling A 10.53.0.4
+sibling NS ns.sub.local
+ns.sub.local A 10.53.0.10
diff --git a/bin/tests/system/forward/ns4/named.conf.in b/bin/tests/system/forward/ns4/named.conf.in
index 855b4bfb82..85349aa97e 100644
--- a/bin/tests/system/forward/ns4/named.conf.in
+++ b/bin/tests/system/forward/ns4/named.conf.in
@@ -60,3 +60,8 @@ zone "malicious." {
type primary;
file "malicious.db";
};
+
+zone "sibling.tld" {
+ type primary;
+ file "sibling.tld.db";
+};
diff --git a/bin/tests/system/forward/ns4/sibling.tld.db b/bin/tests/system/forward/ns4/sibling.tld.db
new file mode 100644
index 0000000000..fe080ae974
--- /dev/null
+++ b/bin/tests/system/forward/ns4/sibling.tld.db
@@ -0,0 +1,22 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+$TTL 86400
+@ IN SOA malicious. admin.malicious. (
+ 1 ; Serial
+ 604800 ; Refresh
+ 86400 ; Retry
+ 2419200 ; Expire
+ 86400 ) ; Negative Cache TTL
+
+@ IN NS ns
+
+ns IN A 10.53.0.4
diff --git a/bin/tests/system/forward/ns8/named.conf.in b/bin/tests/system/forward/ns8/named.conf.in
index 531ff59ece..f752eae885 100644
--- a/bin/tests/system/forward/ns8/named.conf.in
+++ b/bin/tests/system/forward/ns8/named.conf.in
@@ -26,3 +26,8 @@ zone "." {
type hint;
file "root.db";
};
+
+zone "sub.local.tld" {
+ type primary;
+ file "sub.local.tld.db";
+};
diff --git a/bin/tests/system/forward/ns8/sub.local.tld.db b/bin/tests/system/forward/ns8/sub.local.tld.db
new file mode 100644
index 0000000000..f2234c754e
--- /dev/null
+++ b/bin/tests/system/forward/ns8/sub.local.tld.db
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+sub.local.tld. 3600 IN SOA . . 0 0 0 0 0
+sub.local.tld. 3600 IN NS ns.sub.local.tld.
+sub.local.tld. 3600 IN TXT good
+ns.sub.local.tld. 3600 IN A 10.53.0.8
diff --git a/bin/tests/system/forward/ns9/local.net.db b/bin/tests/system/forward/ns9/local.net.db
new file mode 100644
index 0000000000..af0d2a5a67
--- /dev/null
+++ b/bin/tests/system/forward/ns9/local.net.db
@@ -0,0 +1,16 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+local.net. 3600 IN SOA . . 0 0 0 0 0
+local.net. 3600 IN NS localhost.
+ns.local.net. 3600 IN A 10.53.0.9
+txt.local.net. 3600 IN TXT "something in the local auth zone"
+sub.local.net. 3600 IN NS ns.spoofed.net. ; attacker will try to override this
diff --git a/bin/tests/system/forward/ns9/local.tld.db b/bin/tests/system/forward/ns9/local.tld.db
new file mode 100644
index 0000000000..876a9139da
--- /dev/null
+++ b/bin/tests/system/forward/ns9/local.tld.db
@@ -0,0 +1,15 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+local.tld. 3600 IN SOA . . 0 0 0 0 0
+local.tld. 3600 IN NS localhost.
+sub.local.tld. 3600 IN NS ns.sub.local.tld.
+ns.sub.local.tld. 3600 IN A 10.53.0.8
diff --git a/bin/tests/system/forward/ns9/named1.conf.in b/bin/tests/system/forward/ns9/named1.conf.in
new file mode 100644
index 0000000000..be9a43842f
--- /dev/null
+++ b/bin/tests/system/forward/ns9/named1.conf.in
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+options {
+ query-source address 10.53.0.9;
+ notify-source 10.53.0.9;
+ transfer-source 10.53.0.9;
+ port @PORT@;
+ pid-file "named.pid";
+ listen-on { 10.53.0.9; };
+ listen-on-v6 { none; };
+ dnssec-validation no;
+ edns-udp-size 1232;
+};
+
+key rndc_key {
+ secret "1234abcd8765";
+ algorithm hmac-sha256;
+};
+
+controls {
+ inet 10.53.0.9 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+server 10.53.0.10 {
+ edns no;
+};
+
+server 10.53.0.11 {
+ edns no;
+};
+
+zone "." {
+ type hint;
+ file "root.db";
+};
+
+zone "attacksecuredomain.net." {
+ type forward;
+ forwarders { 10.53.0.10; };
+};
+
+zone "attacksecuredomain.net2." {
+ type forward;
+ forwarders { 10.53.0.10; };
+};
+
+zone "attacksecuredomain.net3." {
+ type forward;
+ forwarders { 10.53.0.11; };
+};
+
+zone "local.net." {
+ type primary;
+ file "local.net.db";
+ forwarders {};
+};
diff --git a/bin/tests/system/forward/ns9/named2.conf.in b/bin/tests/system/forward/ns9/named2.conf.in
new file mode 100644
index 0000000000..2c40b42a0c
--- /dev/null
+++ b/bin/tests/system/forward/ns9/named2.conf.in
@@ -0,0 +1,70 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+options {
+ query-source address 10.53.0.9;
+ notify-source 10.53.0.9;
+ transfer-source 10.53.0.9;
+ port @PORT@;
+ pid-file "named.pid";
+ listen-on { 10.53.0.9; };
+ listen-on-v6 { none; };
+ dnssec-validation no;
+ edns-udp-size 1232;
+};
+
+key rndc_key {
+ secret "1234abcd8765";
+ algorithm hmac-sha256;
+};
+
+controls {
+ inet 10.53.0.9 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+server 10.53.0.10 {
+ edns no;
+};
+
+server 10.53.0.11 {
+ edns no;
+};
+
+zone "." {
+ type hint;
+ file "root.db";
+};
+
+zone "attacksecuredomain.net." {
+ type forward;
+ forward only;
+ forwarders { 10.53.0.10; };
+};
+
+zone "attacksecuredomain.net2." {
+ type forward;
+ forward only;
+ forwarders { 10.53.0.10; };
+};
+
+zone "attacksecuredomain.net3." {
+ type forward;
+ forward only;
+ forwarders { 10.53.0.11; };
+};
+
+zone "local.net." {
+ type primary;
+ file "local.net.db";
+ forwarders {};
+};
diff --git a/bin/tests/system/forward/ns9/named3.conf.in b/bin/tests/system/forward/ns9/named3.conf.in
new file mode 100644
index 0000000000..576f57c10b
--- /dev/null
+++ b/bin/tests/system/forward/ns9/named3.conf.in
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+options {
+ query-source address 10.53.0.9;
+ notify-source 10.53.0.9;
+ transfer-source 10.53.0.9;
+ port @PORT@;
+ pid-file "named.pid";
+ listen-on { 10.53.0.9; };
+ listen-on-v6 { none; };
+ dnssec-validation no;
+ edns-udp-size 1232;
+ forward only;
+ forwarders { 10.53.0.10; };
+};
+
+key rndc_key {
+ secret "1234abcd8765";
+ algorithm hmac-sha256;
+};
+
+controls {
+ inet 10.53.0.9 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+server 10.53.0.10 {
+ edns no;
+};
+
+zone "." {
+ type hint;
+ file "root.db";
+};
+
+zone "local.net." {
+ type primary;
+ file "local.net.db";
+ forwarders {};
+};
diff --git a/bin/tests/system/forward/ns9/named4.conf.in b/bin/tests/system/forward/ns9/named4.conf.in
new file mode 100644
index 0000000000..5cd7d84109
--- /dev/null
+++ b/bin/tests/system/forward/ns9/named4.conf.in
@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+ *
+ * SPDX-License-Identifier: MPL-2.0
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, you can obtain one at https://mozilla.org/MPL/2.0/.
+ *
+ * See the COPYRIGHT file distributed with this work for additional
+ * information regarding copyright ownership.
+ */
+
+options {
+ query-source address 10.53.0.9;
+ notify-source 10.53.0.9;
+ transfer-source 10.53.0.9;
+ port @PORT@;
+ pid-file "named.pid";
+ listen-on { 10.53.0.9; };
+ listen-on-v6 { none; };
+ dnssec-validation no;
+ edns-udp-size 1232;
+};
+
+key rndc_key {
+ secret "1234abcd8765";
+ algorithm hmac-sha256;
+};
+
+controls {
+ inet 10.53.0.9 port @CONTROLPORT@ allow { any; } keys { rndc_key; };
+};
+
+server 10.53.0.10 {
+ edns no;
+};
+
+zone "." {
+ type hint;
+ file "root.db";
+};
+
+zone "local.tld." {
+ type primary;
+ file "local.tld.db";
+};
diff --git a/bin/tests/system/forward/ns9/root.db b/bin/tests/system/forward/ns9/root.db
new file mode 100644
index 0000000000..2cbdff5977
--- /dev/null
+++ b/bin/tests/system/forward/ns9/root.db
@@ -0,0 +1,13 @@
+; Copyright (C) Internet Systems Consortium, Inc. ("ISC")
+;
+; SPDX-License-Identifier: MPL-2.0
+;
+; This Source Code Form is subject to the terms of the Mozilla Public
+; License, v. 2.0. If a copy of the MPL was not distributed with this
+; file, you can obtain one at https://mozilla.org/MPL/2.0/.
+;
+; See the COPYRIGHT file distributed with this work for additional
+; information regarding copyright ownership.
+
+. NS a.root-servers.nil.
+a.root-servers.nil. A 10.53.0.1
diff --git a/bin/tests/system/forward/setup.sh b/bin/tests/system/forward/setup.sh
index 21cf67b782..a56dd3c03f 100644
--- a/bin/tests/system/forward/setup.sh
+++ b/bin/tests/system/forward/setup.sh
@@ -19,6 +19,8 @@ copy_setports ns4/named.conf.in ns4/named.conf
copy_setports ns5/named.conf.in ns5/named.conf
copy_setports ns7/named.conf.in ns7/named.conf
copy_setports ns8/named.conf.in ns8/named.conf
+copy_setports ns9/named1.conf.in ns9/named.conf
+copy_setports ns10/named.conf.in ns10/named.conf
(
cd ns1
diff --git a/bin/tests/system/forward/tests.sh b/bin/tests/system/forward/tests.sh
index 6096b06ca7..dfbaf887f7 100644
--- a/bin/tests/system/forward/tests.sh
+++ b/bin/tests/system/forward/tests.sh
@@ -253,5 +253,127 @@ grep "status: SERVFAIL" dig.out.$n.f1 > /dev/null || ret=1
if [ $ret != 0 ]; then echo_i "failed"; fi
status=$((status+ret))
+#
+# Check various spoofed response scenarios. The same tests will be
+# run twice, with "forward first" and "forward only" configurations.
+#
+run_spooftests () {
+ n=$((n+1))
+ echo_i "checking spoofed response scenario 1 - out of bailiwick NS ($n)"
+ ret=0
+ # prime
+ dig_with_opts @10.53.0.9 attackSecureDomain.net > dig.out.$n.prime || ret=1
+ # check 'net' is not poisoned.
+ dig_with_opts @10.53.0.9 diditwork.net. TXT > dig.out.$n.net || ret=1
+ grep '^diditwork\.net\..*TXT.*"recursed"' dig.out.$n.net > /dev/null || ret=1
+ # check 'sub.local.net' is not poisoned.
+ dig_with_opts @10.53.0.9 sub.local.net TXT > dig.out.$n.sub || ret=1
+ grep '^sub\.local\.net\..*TXT.*"recursed"' dig.out.$n.sub > /dev/null || ret=1
+ if [ $ret != 0 ]; then echo_i "failed"; fi
+ status=$((status+ret))
+
+ n=$((n+1))
+ echo_i "checking spoofed response scenario 2 - inject DNAME/net2. ($n)"
+ ret=0
+ # prime
+ dig_with_opts @10.53.0.9 attackSecureDomain.net2 > dig.out.$n.prime || ret=1
+ # check that net2/DNAME is not cached
+ dig_with_opts @10.53.0.9 net2. DNAME > dig.out.$n.net2 || ret=1
+ grep "ANSWER: 0," dig.out.$n.net2 > /dev/null || ret=1
+ grep "status: NXDOMAIN" dig.out.$n.net2 > /dev/null || ret=1
+ if [ $ret != 0 ]; then echo_i "failed"; fi
+ status=$((status+ret))
+
+ n=$((n+1))
+ echo_i "checking spoofed response scenario 3 - extra answer ($n)"
+ ret=0
+ # prime
+ dig_with_opts @10.53.0.9 attackSecureDomain.net3 > dig.out.$n.prime || ret=1
+ # check extra net3 records are not cached
+ rndccmd 10.53.0.9 dumpdb -cache 2>&1 | sed 's/^/ns9 /' | cat_i
+ for try in 1 2 3 4 5; do
+ lines=$(grep "net3" ns9/named_dump.db | wc -l)
+ if [ ${lines} -eq 0 ]; then
+ sleep 1
+ continue
+ fi
+ [ ${lines} -eq 1 ] || ret=1
+ grep -q '^attackSecureDomain.net3' ns9/named_dump.db || ret=1
+ grep -q '^local.net3' ns9/named_dump.db && ret=1
+ done
+ if [ $ret != 0 ]; then echo_i "failed"; fi
+ status=$((status+ret))
+}
+
+echo_i "checking spoofed response scenarios with forward first zones"
+run_spooftests
+
+copy_setports ns9/named2.conf.in ns9/named.conf
+rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i
+rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i
+sleep 1
+
+echo_i "rechecking spoofed response scenarios with forward only zones"
+run_spooftests
+
+#
+# This scenario expects the spoofed response to succeed. The tests are
+# similar to the ones above, but not identical.
+#
+echo_i "rechecking spoofed response scenarios with 'forward only' set globally"
+copy_setports ns9/named3.conf.in ns9/named.conf
+rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i
+rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i
+sleep 1
+
+n=$((n+1))
+echo_i "checking spoofed response scenario 1 - out of bailiwick NS ($n)"
+ret=0
+# prime
+dig_with_opts @10.53.0.9 attackSecureDomain.net > dig.out.$n.prime || ret=1
+# check 'net' is poisoned.
+dig_with_opts @10.53.0.9 diditwork.net. TXT > dig.out.$n.net || ret=1
+grep '^didItWork\.net\..*TXT.*"if you can see this record the attack worked"' dig.out.$n.net > /dev/null || ret=1
+# check 'sub.local.net' is poisoned.
+dig_with_opts @10.53.0.9 sub.local.net TXT > dig.out.$n.sub || ret=1
+grep '^sub\.local\.net\..*TXT.*"if you see this attacker overrode local delegation"' dig.out.$n.sub > /dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+n=$((n+1))
+echo_i "checking spoofed response scenario 2 - inject DNAME/net2. ($n)"
+ret=0
+# prime
+dig_with_opts @10.53.0.9 attackSecureDomain.net2 > dig.out.$n.prime || ret=1
+# check that net2/DNAME is cached
+dig_with_opts @10.53.0.9 net2. DNAME > dig.out.$n.net2 || ret=1
+grep "ANSWER: 1," dig.out.$n.net2 > /dev/null || ret=1
+grep "net2\..*IN.DNAME.net\.example\.lll\." dig.out.$n.net2 > /dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
+#
+# This test doesn't use any forwarder clauses but is here because it
+# is similar to forwarders, as the set of servers that can populate
+# the namespace is defined by the zone content.
+#
+echo_i "rechecking spoofed response scenarios glue below local zone"
+copy_setports ns9/named4.conf.in ns9/named.conf
+rndccmd 10.53.0.9 reconfig 2>&1 | sed 's/^/ns3 /' | cat_i
+rndccmd 10.53.0.9 flush 2>&1 | sed 's/^/ns3 /' | cat_i
+sleep 1
+
+n=$((n+1))
+echo_i "checking sibling glue below zone ($n)"
+ret=0
+# prime
+dig_with_opts @10.53.0.9 sibling.tld > dig.out.$n.prime || ret=1
+# check for glue A record for sub.local.tld is not used
+dig_with_opts @10.53.0.9 sub.local.tld TXT > dig.out.$n.sub || ret=1
+grep "ANSWER: 1," dig.out.$n.sub > /dev/null || ret=1
+grep 'sub\.local\.tld\..*IN.TXT."good"$' dig.out.$n.sub > /dev/null || ret=1
+if [ $ret != 0 ]; then echo_i "failed"; fi
+status=$((status+ret))
+
echo_i "exit status: $status"
[ $status -eq 0 ] || exit 1
diff --git a/bin/tests/system/ifconfig.sh b/bin/tests/system/ifconfig.sh
index e078f3313b..2a4d955caf 100755
--- a/bin/tests/system/ifconfig.sh
+++ b/bin/tests/system/ifconfig.sh
@@ -12,10 +12,10 @@
#
# Set up interface aliases for bind9 system tests.
#
-# IPv4: 10.53.0.{1..10} RFC 1918
+# IPv4: 10.53.0.{1..11} RFC 1918
# 10.53.1.{1..2}
# 10.53.2.{1..2}
-# IPv6: fd92:7065:b8e:ffff::{1..10} ULA
+# IPv6: fd92:7065:b8e:ffff::{1..11} ULA
# fd92:7065:b8e:99ff::{1..2}
# fd92:7065:b8e:ff::{1..2}
#
@@ -55,7 +55,7 @@ case "$1" in
2) ipv6="00" ;;
*) ipv6="" ;;
esac
- for ns in 1 2 3 4 5 6 7 8 9 10
+ for ns in 1 2 3 4 5 6 7 8 9 10 11
do
[ $i -gt 0 -a $ns -gt 2 ] && break
int=`expr $i \* 10 + $ns`
@@ -160,7 +160,7 @@ case "$1" in
2) ipv6="00" ;;
*) ipv6="" ;;
esac
- for ns in 10 9 8 7 6 5 4 3 2 1
+ for ns in 11 10 9 8 7 6 5 4 3 2 1
do
[ $i -gt 0 -a $ns -gt 2 ] && continue
int=`expr $i \* 10 + $ns - 1`
--
2.34.1