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From f0d4f6ec31079506b01502f7b515245ace03227d Mon Sep 17 00:00:00 2001
From: Andreas Schneider <asn@samba.org>
Date: Fri, 5 Jul 2019 09:39:02 +0200
Subject: [PATCH 011/187] libcli:auth: Add test for decoding an RC4 password
buffer
BUG: https://bugzilla.samba.org/show_bug.cgi?id=14031
Signed-off-by: Andreas Schneider <asn@samba.org>
Reviewed-by: Andrew Bartlett <abartlet@samba.org>
(cherry picked from commit 7ccc76f951a626a25d553ac85c5bf30eb29ffa2b)
---
libcli/auth/tests/test_rc4_passwd_buffer.c | 177 +++++++++++++++++++++
libcli/auth/wscript_build | 9 ++
selftest/tests.py | 2 +
3 files changed, 188 insertions(+)
create mode 100644 libcli/auth/tests/test_rc4_passwd_buffer.c
diff --git a/libcli/auth/tests/test_rc4_passwd_buffer.c b/libcli/auth/tests/test_rc4_passwd_buffer.c
new file mode 100644
index 00000000000..f40ac3a5655
--- /dev/null
+++ b/libcli/auth/tests/test_rc4_passwd_buffer.c
@@ -0,0 +1,177 @@
+/*
+ * Unix SMB/CIFS implementation.
+ *
+ * Copyright (C) 2018-2019 Andreas Schneider <asn@samba.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <setjmp.h>
+#include <cmocka.h>
+
+#include "includes.h"
+#include "libcli/auth/libcli_auth.h"
+#include "rpc_client/init_samr.h"
+
+#define PASSWORD "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"
+
+static const uint8_t encrypted_test_blob[] = {
+ 0x37, 0x8e, 0x1d, 0xd5, 0xd3, 0x9f, 0xca, 0x8e,
+ 0x2f, 0x2d, 0xee, 0xc3, 0xb5, 0x50, 0xcd, 0x4e,
+ 0xc9, 0x08, 0x04, 0x68, 0x32, 0xc3, 0xac, 0x8e,
+ 0x53, 0x69, 0xd6, 0xb7, 0x56, 0xcc, 0xc0, 0xbe,
+ 0x4e, 0x96, 0xa7, 0x74, 0xe9, 0xaa, 0x10, 0x3d,
+ 0xd5, 0x8c, 0xaa, 0x12, 0x56, 0xb6, 0xf1, 0x85,
+ 0x21, 0xfa, 0xe9, 0xa1, 0x76, 0xe6, 0xa5, 0x33,
+ 0x33, 0x2f, 0x47, 0x29, 0xd6, 0xbd, 0xde, 0x64,
+ 0x4d, 0x15, 0x3e, 0x6a, 0x11, 0x9b, 0x52, 0xbf,
+ 0x7e, 0x3a, 0xeb, 0x1c, 0x55, 0xd1, 0xb2, 0xa4,
+ 0x35, 0x03, 0x6c, 0x39, 0x61, 0x28, 0x98, 0xc3,
+ 0x2d, 0xd4, 0x70, 0x69, 0x8b, 0x83, 0xe9, 0x62,
+ 0xbe, 0xd8, 0x72, 0x4e, 0xdf, 0xd4, 0xe9, 0xe3,
+ 0x46, 0x2a, 0xf9, 0x3c, 0x0f, 0x41, 0x62, 0xe1,
+ 0x43, 0xf0, 0x91, 0xbe, 0x72, 0xa0, 0xc9, 0x08,
+ 0x73, 0x20, 0x1f, 0x0d, 0x68, 0x2e, 0x32, 0xa1,
+ 0xb8, 0x9b, 0x08, 0xa1, 0xb4, 0x81, 0x6b, 0xf1,
+ 0xde, 0x0c, 0x28, 0x34, 0xe2, 0x65, 0x62, 0x54,
+ 0xeb, 0xc0, 0x71, 0x14, 0xad, 0x36, 0x43, 0x0e,
+ 0x92, 0x4d, 0x11, 0xe8, 0xdd, 0x2d, 0x5f, 0x05,
+ 0xff, 0x07, 0xda, 0x81, 0x4e, 0x27, 0x42, 0xa8,
+ 0xa9, 0x64, 0x4c, 0x74, 0xc8, 0x05, 0xbb, 0x83,
+ 0x5a, 0xd9, 0x90, 0x3e, 0x0d, 0x9d, 0xe5, 0x2f,
+ 0x08, 0xf9, 0x1b, 0xbd, 0x26, 0xc3, 0x0d, 0xac,
+ 0x43, 0xd5, 0x17, 0xf2, 0x61, 0xf5, 0x74, 0x9b,
+ 0xf3, 0x5b, 0x5f, 0xe1, 0x8a, 0xa6, 0xfd, 0xdf,
+ 0xff, 0xb5, 0x8b, 0xf1, 0x26, 0xf7, 0xe0, 0xa7,
+ 0x4f, 0x5b, 0xb8, 0x6d, 0xeb, 0xf6, 0x52, 0x68,
+ 0x8d, 0xa3, 0xd4, 0x7f, 0x56, 0x43, 0xaa, 0xec,
+ 0x58, 0x47, 0x03, 0xee, 0x9b, 0x59, 0xd9, 0x78,
+ 0x9a, 0xfb, 0x9e, 0xe9, 0xa6, 0x61, 0x4e, 0x6d,
+ 0x92, 0x35, 0xd3, 0x37, 0x6e, 0xf2, 0x34, 0x39,
+ 0xd4, 0xd2, 0xeb, 0xcf, 0x1c, 0x10, 0xb3, 0x2b,
+ 0x3e, 0x07, 0x42, 0x3e, 0x20, 0x90, 0x07, 0x3e,
+ 0xc7, 0xed, 0xd4, 0xdf, 0x50, 0xe5, 0xff, 0xaf,
+ 0x05, 0xce, 0x29, 0xbe, 0x01, 0xf8, 0xb0, 0x30,
+ 0x96, 0xae, 0x1b, 0x62, 0x23, 0x93, 0x91, 0x1a,
+ 0x52, 0x98, 0xd9, 0x59, 0xb8, 0x11, 0xec, 0xb8,
+ 0xcf, 0x20, 0x32, 0x90, 0x9e, 0xf2, 0x06, 0x43,
+ 0xb8, 0x36, 0xe3, 0x33, 0x4e, 0x6f, 0x75, 0xeb,
+ 0xf7, 0x6c, 0xac, 0x06, 0x5f, 0x24, 0x8e, 0x4a,
+ 0x03, 0xdf, 0x50, 0x31, 0xaa, 0x91, 0xd5, 0x85,
+ 0x95, 0x78, 0x5b, 0xf4, 0x7f, 0x3e, 0xbc, 0x41,
+ 0xfa, 0x10, 0xd3, 0x0f, 0x86, 0x8b, 0x23, 0xed,
+ 0xfc, 0xcc, 0x3e, 0x7d, 0x8c, 0xb4, 0x7c, 0xec,
+ 0x04, 0x7d, 0x12, 0x53, 0xa1, 0x30, 0xc5, 0xac,
+ 0xf3, 0x1e, 0x54, 0x1f, 0x97, 0x05, 0x86, 0x74,
+ 0x51, 0x13, 0x45, 0x98, 0xb8, 0x50, 0x62, 0x18,
+ 0x0f, 0x6d, 0x66, 0xa4, 0x88, 0x31, 0x76, 0xa3,
+ 0xb0, 0x75, 0x55, 0x44, 0x18, 0x7c, 0x67, 0xc7,
+ 0x09, 0x9c, 0xab, 0x53, 0x49, 0xc0, 0xc9, 0x27,
+ 0x53, 0xa6, 0x99, 0x01, 0x10, 0x49, 0x67, 0x8e,
+ 0x5b, 0x12, 0x96, 0x40, 0x16, 0x39, 0x11, 0x53,
+ 0x44, 0x8f, 0xa9, 0xbe, 0x84, 0xbe, 0xe0, 0x45,
+ 0xe3, 0xfd, 0x48, 0x46, 0x43, 0x53, 0x13, 0x5f,
+ 0xfa, 0xcf, 0x09, 0x67, 0x90, 0xa3, 0x94, 0xaa,
+ 0x0d, 0x1f, 0xc2, 0xc3, 0xd4, 0x7e, 0xc8, 0x14,
+ 0xbe, 0x84, 0xa5, 0x55, 0xee, 0x49, 0x8e, 0x03,
+ 0x1d, 0xaf, 0xad, 0x65, 0x2f, 0xf0, 0xd5, 0x90,
+ 0x5e, 0x8d, 0x29, 0x40, 0xba, 0x57, 0x26, 0xa8,
+ 0x6c, 0x4b, 0x59, 0x40, 0x4e, 0xc2, 0xc4, 0x88,
+ 0x0a, 0x06, 0x2b, 0x6c, 0x2a, 0xc7, 0x3f, 0xfe,
+ 0x37, 0x2c, 0x41, 0x58, 0xfe, 0x7e, 0xaf, 0xd1,
+ 0xd9, 0xd2, 0x9c, 0xd7, 0x8a, 0x01, 0x0e, 0x8c,
+ 0x9e, 0x8b, 0x5d, 0x72, 0x54, 0x00, 0xbe, 0xb2,
+ 0x9a, 0xc7, 0xfd, 0x83, 0x1e, 0x9c, 0x79, 0xdd,
+ 0x15, 0x13, 0xdc, 0x15,
+};
+
+static void torture_decode_rc4_passwd_buffer(void **state)
+{
+ char *password_decoded = NULL;
+ size_t password_decoded_len = 0;
+ DATA_BLOB session_key = data_blob_const("SystemLibraryDTC", 16);
+ struct samr_CryptPasswordEx out_pwd_buf = {
+ .data = {0},
+ };
+ NTSTATUS status;
+ bool ok;
+
+ memcpy(out_pwd_buf.data,
+ encrypted_test_blob,
+ sizeof(out_pwd_buf.data));
+
+ status = encode_or_decode_arc4_passwd_buffer(out_pwd_buf.data,
+ &session_key);
+ assert_true(NT_STATUS_IS_OK(status));
+
+ ok = decode_pw_buffer(NULL,
+ out_pwd_buf.data,
+ &password_decoded,
+ &password_decoded_len,
+ CH_UTF16);
+ assert_true(ok);
+ assert_int_equal(password_decoded_len, strlen(PASSWORD));
+ assert_string_equal(password_decoded, PASSWORD);
+}
+
+static void torture_rc4_passwd_buffer(void **state)
+{
+ char *password_decoded = NULL;
+ size_t password_decoded_len = 0;
+ DATA_BLOB session_key = data_blob_const("SystemLibraryDTC", 16);
+ struct samr_CryptPasswordEx out_pwd_buf = {
+ .data = {0},
+ };
+ NTSTATUS status;
+ bool ok;
+
+ status = init_samr_CryptPasswordEx(PASSWORD,
+ &session_key,
+ &out_pwd_buf);
+ assert_true(NT_STATUS_IS_OK(status));
+
+ status = encode_or_decode_arc4_passwd_buffer(out_pwd_buf.data,
+ &session_key);
+ assert_true(NT_STATUS_IS_OK(status));
+
+ ok = decode_pw_buffer(NULL,
+ out_pwd_buf.data,
+ &password_decoded,
+ &password_decoded_len,
+ CH_UTF16);
+ assert_true(ok);
+ assert_int_equal(password_decoded_len, strlen(PASSWORD));
+ assert_string_equal(password_decoded, PASSWORD);
+}
+
+int main(int argc, char *argv[])
+{
+ int rc;
+ const struct CMUnitTest tests[] = {
+ cmocka_unit_test(torture_decode_rc4_passwd_buffer),
+ cmocka_unit_test(torture_rc4_passwd_buffer),
+ };
+
+ if (argc == 2) {
+ cmocka_set_test_filter(argv[1]);
+ }
+ cmocka_set_message_output(CM_OUTPUT_SUBUNIT);
+
+ rc = cmocka_run_group_tests(tests, NULL, NULL);
+
+ return rc;
+}
diff --git a/libcli/auth/wscript_build b/libcli/auth/wscript_build
index 04e2b09eadf..eabf3814ba1 100644
--- a/libcli/auth/wscript_build
+++ b/libcli/auth/wscript_build
@@ -62,3 +62,12 @@ bld.SAMBA_BINARY('test_schannel',
cmocka
''',
install=False)
+
+bld.SAMBA_BINARY('test_rc4_passwd_buffer',
+ source='tests/test_rc4_passwd_buffer.c',
+ deps='''
+ INIT_SAMR
+ LIBCLI_AUTH
+ cmocka
+ ''',
+ install=False)
diff --git a/selftest/tests.py b/selftest/tests.py
index bbb5709ee47..c91d9b445fe 100644
--- a/selftest/tests.py
+++ b/selftest/tests.py
@@ -392,6 +392,8 @@ plantestsuite("samba.unittests.ntlm_check", "none",
[os.path.join(bindir(), "default/libcli/auth/test_ntlm_check")])
plantestsuite("samba.unittests.schannel", "none",
[os.path.join(bindir(), "default/libcli/auth/test_schannel")])
+plantestsuite("samba.unittests.rc4_passwd_buffer", "none",
+ [os.path.join(bindir(), "default/libcli/auth/test_rc4_passwd_buffer")])
plantestsuite("samba.unittests.test_registry_regfio", "none",
[os.path.join(bindir(), "default/source3/test_registry_regfio")])
plantestsuite("samba.unittests.test_oLschema2ldif", "none",
--
2.23.0
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