133 lines
4.0 KiB
Perl
133 lines
4.0 KiB
Perl
#! /usr/bin/env perl
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# Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved.
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#
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# Licensed under the OpenSSL license (the "License"). You may not use
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# this file except in compliance with the License. You can obtain a copy
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# in the file LICENSE in the source distribution or at
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# https://www.openssl.org/source/license.html
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use strict;
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use OpenSSL::Test qw/:DEFAULT cmdstr srctop_file bldtop_dir/;
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use OpenSSL::Test::Utils;
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use TLSProxy::Proxy;
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my $test_name = "test_renegotiation";
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setup($test_name);
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plan skip_all => "TLSProxy isn't usable on $^O"
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if $^O =~ /^(VMS)$/;
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plan skip_all => "$test_name needs the dynamic engine feature enabled"
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if disabled("engine") || disabled("dynamic-engine");
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plan skip_all => "$test_name needs the sock feature enabled"
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if disabled("sock");
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plan skip_all => "$test_name needs TLS <= 1.2 enabled"
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if alldisabled(("ssl3", "tls1", "tls1_1", "tls1_2"));
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$ENV{OPENSSL_ia32cap} = '~0x200000200000000';
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my $proxy = TLSProxy::Proxy->new(
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undef,
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cmdstr(app(["openssl"]), display => 1),
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srctop_file("apps", "server.pem"),
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(!$ENV{HARNESS_ACTIVE} || $ENV{HARNESS_VERBOSE})
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);
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#Test 1: A basic renegotiation test
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$proxy->clientflags("-no_tls1_3");
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$proxy->reneg(1);
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$proxy->start() or plan skip_all => "Unable to start up Proxy for tests";
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plan tests => 4;
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ok(TLSProxy::Message->success(), "Basic renegotiation");
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#Test 2: Client does not send the Reneg SCSV. Reneg should fail
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$proxy->clear();
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$proxy->filter(\&reneg_filter);
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$proxy->clientflags("-no_tls1_3");
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$proxy->reneg(1);
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$proxy->start();
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ok(TLSProxy::Message->fail(), "No client SCSV");
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SKIP: {
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skip "TLSv1.2 or TLSv1.1 disabled", 1
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if disabled("tls1_2") || disabled("tls1_1");
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#Test 3: Check that the ClientHello version remains the same in the reneg
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# handshake
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$proxy->clear();
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$proxy->filter(undef);
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$proxy->clientflags("-no_tls1_3");
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$proxy->serverflags("-no_tls1_3 -no_tls1_2");
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$proxy->reneg(1);
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$proxy->start();
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my $chversion;
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my $chmatch = 0;
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foreach my $message (@{$proxy->message_list}) {
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if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
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if (!defined $chversion) {
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$chversion = $message->client_version;
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} else {
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if ($chversion == $message->client_version) {
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$chmatch = 1;
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}
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}
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}
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}
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ok(TLSProxy::Message->success() && $chmatch,
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"Check ClientHello version is the same");
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}
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SKIP: {
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skip "TLSv1.2 disabled", 1
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if disabled("tls1_2");
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#Test 4: Test for CVE-2021-3449. client_sig_algs instead of sig_algs in
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# resumption ClientHello
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$proxy->clear();
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$proxy->filter(\&sigalgs_filter);
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$proxy->clientflags("-tls1_2");
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$proxy->reneg(1);
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$proxy->start();
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ok(TLSProxy::Message->fail(), "client_sig_algs instead of sig_algs");
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}
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sub reneg_filter
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{
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my $proxy = shift;
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# We're only interested in the initial ClientHello message
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if ($proxy->flight != 0) {
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return;
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}
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foreach my $message (@{$proxy->message_list}) {
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if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
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#Remove any SCSV ciphersuites - just leave AES128-SHA (0x002f)
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my @ciphersuite = (0x002f);
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$message->ciphersuites(\@ciphersuite);
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$message->ciphersuite_len(2);
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$message->repack();
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}
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}
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}
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sub sigalgs_filter
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{
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my $proxy = shift;
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my $cnt = 0;
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# We're only interested in the second ClientHello message
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foreach my $message (@{$proxy->message_list}) {
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if ($message->mt == TLSProxy::Message::MT_CLIENT_HELLO) {
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next if ($cnt++ == 0);
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my $sigs = pack "C10", 0x00, 0x08,
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# rsa_pkcs_sha{256,384,512,1}
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0x04, 0x01, 0x05, 0x01, 0x06, 0x01, 0x02, 0x01;
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$message->set_extension(TLSProxy::Message::EXT_SIG_ALGS_CERT, $sigs);
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$message->delete_extension(TLSProxy::Message::EXT_SIG_ALGS);
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$message->repack();
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}
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}
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}
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