- 264 license table entries with exact download URLs (224/264 resolved) - Complete sources/ directory with all BitBake recipes - Build configuration: tqma6ul-multi-mba6ulx, spaetzle (musl) - Full traceability for Softwarefreigabeantrag - GCC 13.4.0, Linux 6.6.102, U-Boot 2023.04, musl 1.2.4 - License distribution: GPL-2.0 (24), MIT (23), GPL-2.0+ (18), BSD-3 (16)
293 lines
12 KiB
Diff
293 lines
12 KiB
Diff
From 12a0624e4c275f14cee9a6b4f36e714d2ced8544 Mon Sep 17 00:00:00 2001
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From: therandomstring <bal.horv.98@gmail.com>
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Date: Wed, 07 May 2025 09:30:36 +0530
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Subject: [PATCH] Merge commit from fork
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Fix transport accepting incorrect wildcards
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CVE: CVE-2024-47619
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Upstream-Status: Backport [https://github.com/syslog-ng/syslog-ng/commit/12a0624e4c275f14cee9a6b4f36e714d2ced8544]
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Signed-off-by: Yogita Urade <yogita.urade@windriver.com>
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---
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lib/transport/tests/CMakeLists.txt | 1 +
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lib/transport/tests/Makefile.am | 9 +-
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lib/transport/tests/test_tls_wildcard_match.c | 104 ++++++++++++++++++
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lib/transport/tls-verifier.c | 86 +++++++++++++--
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lib/transport/tls-verifier.h | 2 +
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5 files changed, 190 insertions(+), 12 deletions(-)
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create mode 100644 lib/transport/tests/test_tls_wildcard_match.c
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diff --git a/lib/transport/tests/CMakeLists.txt b/lib/transport/tests/CMakeLists.txt
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index 834f456..ce1d033 100644
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--- a/lib/transport/tests/CMakeLists.txt
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+++ b/lib/transport/tests/CMakeLists.txt
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@@ -3,3 +3,4 @@ add_unit_test(CRITERION TARGET test_transport_factory_id)
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add_unit_test(CRITERION TARGET test_transport_factory)
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add_unit_test(CRITERION TARGET test_transport_factory_registry)
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add_unit_test(CRITERION TARGET test_multitransport)
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+add_unit_test(CRITERION TARGET test_tls_wildcard_match)
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diff --git a/lib/transport/tests/Makefile.am b/lib/transport/tests/Makefile.am
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index 7eac994..ae2426c 100644
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--- a/lib/transport/tests/Makefile.am
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+++ b/lib/transport/tests/Makefile.am
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@@ -3,7 +3,8 @@ lib_transport_tests_TESTS = \
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lib/transport/tests/test_transport_factory_id \
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lib/transport/tests/test_transport_factory \
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lib/transport/tests/test_transport_factory_registry \
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- lib/transport/tests/test_multitransport
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+ lib/transport/tests/test_multitransport \
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+ lib/transport/tests/test_tls_wildcard_match
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EXTRA_DIST += lib/transport/tests/CMakeLists.txt
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@@ -38,3 +39,9 @@ lib_transport_tests_test_multitransport_CFLAGS = $(TEST_CFLAGS) \
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lib_transport_tests_test_multitransport_LDADD = $(TEST_LDADD)
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lib_transport_tests_test_multitransport_SOURCES = \
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lib/transport/tests/test_multitransport.c
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+
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+lib_transport_tests_test_tls_wildcard_match_CFLAGS = $(TEST_CFLAGS) \
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+ -I${top_srcdir}/lib/transport/tests
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+lib_transport_tests_test_tls_wildcard_match_LDADD = $(TEST_LDADD)
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+lib_transport_tests_test_tls_wildcard_match_SOURCES = \
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+ lib/transport/tests/test_tls_wildcard_match.c
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diff --git a/lib/transport/tests/test_tls_wildcard_match.c b/lib/transport/tests/test_tls_wildcard_match.c
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new file mode 100644
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index 0000000..90cecb0
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--- /dev/null
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+++ b/lib/transport/tests/test_tls_wildcard_match.c
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@@ -0,0 +1,104 @@
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+/*
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+ * Copyright (c) 2024 One Identity LLC.
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+ * Copyright (c) 2024 Franco Fichtner
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+ *
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+ * This library is free software; you can redistribute it and/or
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+ * modify it under the terms of the GNU Lesser General Public
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+ * License as published by the Free Software Foundation; either
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+ * version 2.1 of the License, or (at your option) any later version.
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+ *
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+ * This library is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ * Lesser General Public License for more details.
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+ *
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+ * You should have received a copy of the GNU Lesser General Public
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+ * License along with this library; if not, write to the Free Software
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+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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+ *
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+ * As an additional exemption you are allowed to compile & link against the
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+ * OpenSSL libraries as published by the OpenSSL project. See the file
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+ * COPYING for details.
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+ *
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+ */
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+
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+
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+#include <criterion/criterion.h>
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+
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+#include "transport/tls-verifier.h"
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+
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+TestSuite(tls_wildcard, .init = NULL, .fini = NULL);
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+
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+Test(tls_wildcard, test_wildcard_match_pattern_acceptance)
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+{
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+ cr_assert_eq(tls_wildcard_match("test", "test"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test", "*"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test", "t*t"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test", "t*"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("", ""), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test.one", "test.one"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test.one.two", "test.one.two"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("192.0.2.0", "192.0.2.0"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "2001:0000:130F:0000:0000:09C0:876A:130B"),
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+ TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "2001:0:130F:0:0:9C0:876A:130B"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0:130F:0:0:9C0:876A:130B", "2001:0000:130F:0000:0000:09C0:876A:130B"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F::09C0:876A:130B", "2001:0000:130F:0000:0000:09C0:876A:130B"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "2001:0000:130F::09C0:876A:130B"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "2001:0:130F::9C0:876A:130B"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0:130F::9C0:876A:130B", "2001:0000:130F:0000:0000:09C0:876A:130B"), TRUE);
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+}
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+
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+Test(tls_wildcard, test_wildcard_match_wildcard_rejection)
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+{
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+ cr_assert_eq(tls_wildcard_match("test", "**"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test", "*es*"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test", "t*?"), FALSE);
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+}
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+
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+Test(tls_wildcard, test_wildcard_match_pattern_rejection)
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+{
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+ cr_assert_eq(tls_wildcard_match("test", "tset"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test", "set"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("", "*"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test", ""), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.two", "test.one"), FALSE);
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+}
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+
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+Test(tls_wildcard, test_wildcard_match_format_rejection)
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+{
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+ cr_assert_eq(tls_wildcard_match("test.two", "test.*"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.two", "test.t*o"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test", "test.two"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.two", "test"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.one.two", "test.one"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.one", "test.one.two"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.three", "three.test"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.one.two", "test.one.*"), FALSE);
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+}
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+
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+Test(tls_wildcard, test_wildcard_match_complex_rejection)
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+{
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+ cr_assert_eq(tls_wildcard_match("test.two", "test.???"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("test.one.two", "test.one.?wo"), FALSE);
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+}
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+
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+Test(tls_wildcard, test_ip_wildcard_rejection)
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+{
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+ cr_assert_eq(tls_wildcard_match("192.0.2.0", "*.0.2.0"), FALSE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "*:0000:130F:0000:0000:09C0:876A:130B"),
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+ FALSE);
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+ cr_assert_eq(tls_wildcard_match("2001:0:130F::9C0:876A:130B", "*:0000:130F:0000:0000:09C0:876A:130B"), FALSE);
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+}
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+
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+Test(tls_wildcard, test_case_insensivity)
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+{
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+ cr_assert_eq(tls_wildcard_match("test", "TEST"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("TEST", "test"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("TeST", "TEst"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test.one", "test.ONE"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test.TWO", "test.two"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("test.three", "*T.three"), TRUE);
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+ cr_assert_eq(tls_wildcard_match("2001:0000:130F:0000:0000:09C0:876A:130B", "2001:0000:130f:0000:0000:09c0:876a:130b"),
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+ TRUE);
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+}
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diff --git a/lib/transport/tls-verifier.c b/lib/transport/tls-verifier.c
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index 606ad02..dde00d9 100644
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--- a/lib/transport/tls-verifier.c
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+++ b/lib/transport/tls-verifier.c
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@@ -1,4 +1,6 @@
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/*
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+ * Copyright (c) 2024 One Identity LLC.
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+ * Copyright (c) 2024 Franco Fichtner
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* Copyright (c) 2002-2011 Balabit
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* Copyright (c) 1998-2011 Balázs Scheidler
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*
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@@ -75,7 +77,7 @@ tls_verifier_unref(TLSVerifier *self)
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/* helper functions */
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-static gboolean
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+gboolean
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tls_wildcard_match(const gchar *host_name, const gchar *pattern)
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{
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gchar **pattern_parts, **hostname_parts;
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@@ -86,22 +88,84 @@ tls_wildcard_match(const gchar *host_name, const gchar *pattern)
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pattern_parts = g_strsplit(pattern, ".", 0);
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hostname_parts = g_strsplit(host_name, ".", 0);
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- for (i = 0; pattern_parts[i]; i++)
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+
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+ if(g_strrstr(pattern, "\?"))
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+ {
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+ /* Glib would treat any question marks as jokers */
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+ success = FALSE;
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+ }
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+ else if (g_hostname_is_ip_address(host_name))
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+ {
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+ /* no wildcards in IP */
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+ if (g_strrstr(pattern, "*"))
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+ {
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+ success = FALSE;
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+ }
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+ else
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+ {
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+ struct in6_addr host_buffer, pattern_buffer;
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+ gint INET_TYPE, INET_ADDRLEN;
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+ if(strstr(host_name, ":"))
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+ {
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+ INET_TYPE = AF_INET6;
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+ INET_ADDRLEN = INET6_ADDRSTRLEN;
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+ }
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+ else
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+ {
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+ INET_TYPE = AF_INET;
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+ INET_ADDRLEN = INET_ADDRSTRLEN;
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+ }
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+ char host_ip[INET_ADDRLEN], pattern_ip[INET_ADDRLEN];
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+ gint host_ip_ok = inet_pton(INET_TYPE, host_name, &host_buffer);
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+ gint pattern_ip_ok = inet_pton(INET_TYPE, pattern, &pattern_buffer);
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+ inet_ntop(INET_TYPE, &host_buffer, host_ip, INET_ADDRLEN);
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+ inet_ntop(INET_TYPE, &pattern_buffer, pattern_ip, INET_ADDRLEN);
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+ success = (host_ip_ok && pattern_ip_ok && strcmp(host_ip, pattern_ip) == 0);
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+ }
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+ }
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+ else
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{
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- if (!hostname_parts[i])
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+ if (pattern_parts[0] == NULL)
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{
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- /* number of dot separated entries is not the same in the hostname and the pattern spec */
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- goto exit;
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+ if (hostname_parts[0] == NULL)
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+ success = TRUE;
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+ else
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+ success = FALSE;
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}
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+ else
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+ {
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+ success = TRUE;
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+ for (i = 0; pattern_parts[i]; i++)
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+ {
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+ if (hostname_parts[i] == NULL)
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+ {
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+ /* number of dot separated entries is not the same in the hostname and the pattern spec */
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+ success = FALSE;
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+ break;
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+ }
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+ char *wildcard_matched = g_strrstr(pattern_parts[i], "*");
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+ if (wildcard_matched && (i != 0 || wildcard_matched != strstr(pattern_parts[i], "*")))
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+ {
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+ /* wildcard only on leftmost part and never as multiple wildcards as per both RFC 6125 and 9525 */
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+ success = FALSE;
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+ break;
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+ }
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- lower_pattern = g_ascii_strdown(pattern_parts[i], -1);
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- lower_hostname = g_ascii_strdown(hostname_parts[i], -1);
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+ lower_pattern = g_ascii_strdown(pattern_parts[i], -1);
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+ lower_hostname = g_ascii_strdown(hostname_parts[i], -1);
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- if (!g_pattern_match_simple(lower_pattern, lower_hostname))
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- goto exit;
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+ if (!g_pattern_match_simple(lower_pattern, lower_hostname))
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+ {
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+ success = FALSE;
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+ break;
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+ }
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+ }
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+ if (hostname_parts[i])
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+ /* hostname has more parts than the pattern */
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+ success = FALSE;
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+ }
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}
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- success = TRUE;
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-exit:
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+
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g_free(lower_pattern);
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g_free(lower_hostname);
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g_strfreev(pattern_parts);
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diff --git a/lib/transport/tls-verifier.h b/lib/transport/tls-verifier.h
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index 5642afa..98ab858 100644
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--- a/lib/transport/tls-verifier.h
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+++ b/lib/transport/tls-verifier.h
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@@ -44,5 +44,7 @@ void tls_verifier_unref(TLSVerifier *self);
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gboolean tls_verify_certificate_name(X509 *cert, const gchar *hostname);
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+gboolean tls_wildcard_match(const gchar *host_name, const gchar *pattern);
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+
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#endif
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--
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2.40.0
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