1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "base/win_util.h"
#include "sandbox/src/sandbox.h"
#include "sandbox/src/sandbox_factory.h"
#include "sandbox/src/sandbox_utils.h"
#include "sandbox/src/target_services.h"
#include "sandbox/tests/common/controller.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace sandbox {
// Reverts to self and verify that SetInformationToken was faked. Returns
// SBOX_TEST_SUCCEEDED if faked and SBOX_TEST_FAILED if not faked.
SBOX_TESTS_COMMAND int PolicyTargetTest_token(int argc, wchar_t **argv) {
HANDLE thread_token;
// Get the thread token, using impersonation.
if (!::OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE |
TOKEN_DUPLICATE, FALSE, &thread_token))
return ::GetLastError();
::RevertToSelf();
::CloseHandle(thread_token);
int ret = SBOX_TEST_FAILED;
if (::OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE | TOKEN_DUPLICATE,
FALSE, &thread_token)) {
ret = SBOX_TEST_SUCCEEDED;
::CloseHandle(thread_token);
}
return ret;
}
// Stores the high privilege token on a static variable, change impersonation
// again to that one and verify that we are not interfering anymore with
// RevertToSelf.
SBOX_TESTS_COMMAND int PolicyTargetTest_steal(int argc, wchar_t **argv) {
static HANDLE thread_token;
if (!SandboxFactory::GetTargetServices()->GetState()->RevertedToSelf()) {
if (!::OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE |
TOKEN_DUPLICATE, FALSE, &thread_token))
return ::GetLastError();
} else {
if (!::SetThreadToken(NULL, thread_token))
return ::GetLastError();
// See if we fake the call again.
int ret = PolicyTargetTest_token(argc, argv);
::CloseHandle(thread_token);
return ret;
}
return 0;
}
// Opens the thread token with and without impersonation.
SBOX_TESTS_COMMAND int PolicyTargetTest_token2(int argc, wchar_t **argv) {
HANDLE thread_token;
// Get the thread token, using impersonation.
if (!::OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE |
TOKEN_DUPLICATE, FALSE, &thread_token))
return ::GetLastError();
::CloseHandle(thread_token);
// Get the thread token, without impersonation.
if (!OpenThreadToken(GetCurrentThread(), TOKEN_IMPERSONATE | TOKEN_DUPLICATE,
TRUE, &thread_token))
return ::GetLastError();
::CloseHandle(thread_token);
return SBOX_TEST_SUCCEEDED;
}
// Tests that we can open the current thread.
SBOX_TESTS_COMMAND int PolicyTargetTest_thread(int argc, wchar_t **argv) {
DWORD thread_id = ::GetCurrentThreadId();
HANDLE thread = ::OpenThread(SYNCHRONIZE, FALSE, thread_id);
if (!thread)
return ::GetLastError();
::CloseHandle(thread);
return SBOX_TEST_SUCCEEDED;
}
// New thread entry point: do nothing.
DWORD WINAPI PolicyTargetTest_thread_main(void* param) {
::Sleep(INFINITE);
return 0;
}
// Tests that we can create a new thread, and open it.
SBOX_TESTS_COMMAND int PolicyTargetTest_thread2(int argc, wchar_t **argv) {
// Use default values to create a new thread.
DWORD thread_id;
HANDLE thread = ::CreateThread(NULL, 0, &PolicyTargetTest_thread_main, 0, 0,
&thread_id);
if (!thread)
return ::GetLastError();
::CloseHandle(thread);
thread = ::OpenThread(SYNCHRONIZE, FALSE, thread_id);
if (!thread)
return ::GetLastError();
::CloseHandle(thread);
return SBOX_TEST_SUCCEEDED;
}
// Tests that we can call CreateProcess.
SBOX_TESTS_COMMAND int PolicyTargetTest_process(int argc, wchar_t **argv) {
// Use default values to create a new process.
STARTUPINFO startup_info = {0};
startup_info.cb = sizeof(startup_info);
PROCESS_INFORMATION process_info;
::CreateProcess(L"foo.exe", L"foo.exe", NULL, NULL, FALSE, 0, NULL, NULL,
&startup_info, &process_info);
return SBOX_TEST_SUCCEEDED;
}
TEST(PolicyTargetTest, SetInformationThread) {
TestRunner runner;
if (win_util::GetWinVersion() >= win_util::WINVERSION_XP) {
runner.SetTestState(BEFORE_REVERT);
EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_token"));
}
runner.SetTestState(AFTER_REVERT);
EXPECT_EQ(ERROR_NO_TOKEN, runner.RunTest(L"PolicyTargetTest_token"));
runner.SetTestState(EVERY_STATE);
if (win_util::GetWinVersion() >= win_util::WINVERSION_XP)
EXPECT_EQ(SBOX_TEST_FAILED, runner.RunTest(L"PolicyTargetTest_steal"));
}
TEST(PolicyTargetTest, OpenThreadToken) {
TestRunner runner;
if (win_util::GetWinVersion() >= win_util::WINVERSION_XP) {
runner.SetTestState(BEFORE_REVERT);
EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_token2"));
}
runner.SetTestState(AFTER_REVERT);
EXPECT_EQ(ERROR_NO_TOKEN, runner.RunTest(L"PolicyTargetTest_token2"));
}
TEST(PolicyTargetTest, OpenThread) {
TestRunner runner;
EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_thread")) <<
"Opens the current thread";
EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_thread2")) <<
"Creates a new thread and opens it";
}
TEST(PolicyTargetTest, OpenProcess) {
TestRunner runner;
EXPECT_EQ(SBOX_TEST_SUCCEEDED, runner.RunTest(L"PolicyTargetTest_process")) <<
"Opens a process";
}
// Launches the app in the sandbox and ask it to wait in an
// infinite loop. Waits for 2 seconds and then check if the
// desktop associated with the app thread is not the same as the
// current desktop.
TEST(PolicyTargetTest, DesktopPolicy) {
BrokerServices* broker = GetBroker();
ASSERT_TRUE(broker != NULL);
// Get the path to the sandboxed app.
wchar_t prog_name[MAX_PATH];
GetModuleFileNameW(NULL, prog_name, MAX_PATH);
std::wstring arguments(L"\"");
arguments += prog_name;
arguments += L"\" -child 0 wait"; // Don't care about the "state" argument.
// Launch the app.
ResultCode result = SBOX_ALL_OK;
PROCESS_INFORMATION target = {0};
TargetPolicy* policy = broker->CreatePolicy();
policy->SetDesktop(L"desktop_for_sbox");
policy->SetTokenLevel(USER_INTERACTIVE, USER_LOCKDOWN);
result = broker->SpawnTarget(prog_name, arguments.c_str(), policy, &target);
policy->Release();
EXPECT_EQ(SBOX_ALL_OK, result);
EXPECT_EQ(1, ::ResumeThread(target.hThread));
EXPECT_EQ(WAIT_TIMEOUT, ::WaitForSingleObject(target.hProcess, 2000));
EXPECT_NE(::GetThreadDesktop(target.dwThreadId),
::GetThreadDesktop(::GetCurrentThreadId()));
HDESK desk = ::OpenDesktop(L"desktop_for_sbox", 0, FALSE, DESKTOP_ENUMERATE);
EXPECT_TRUE(NULL != desk);
EXPECT_TRUE(::CloseDesktop(desk));
EXPECT_TRUE(::TerminateProcess(target.hProcess, 0));
::WaitForSingleObject(target.hProcess, INFINITE);
EXPECT_TRUE(::CloseHandle(target.hProcess));
EXPECT_TRUE(::CloseHandle(target.hThread));
// Wait for the desktop to be deleted by the destructor of TargetProcess
Sleep(2000);
desk = ::OpenDesktop(L"desktop_for_sbox", 0, FALSE, DESKTOP_ENUMERATE);
EXPECT_TRUE(NULL == desk);
}
} // namespace sandbox
|
