1 files changed, 88 insertions, 0 deletions
diff --git a/sandbox/sandbox_poc/pocdll/registry.cc b/sandbox/sandbox_poc/pocdll/registry.cc
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+++ b/sandbox/sandbox_poc/pocdll/registry.cc
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+// 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 "sandbox/sandbox_poc/pocdll/exports.h"
+#include "sandbox/sandbox_poc/pocdll/utils.h"
+
+// This file contains the tests used to verify the security of the registry.
+
+// Converts an HKEY to a string. This is using the lazy way and works only
+// for the main hives.
+// "key" is the hive to convert to string.
+// The return value is the string corresponding to the hive or "unknown"
+const wchar_t *HKEYToString(const HKEY key) {
+  switch (reinterpret_cast<LONG_PTR>(key)) {
+    case HKEY_CLASSES_ROOT:
+      return L"HKEY_CLASSES_ROOT";
+    case HKEY_CURRENT_CONFIG:
+      return L"HKEY_CURRENT_CONFIG";
+    case HKEY_CURRENT_USER:
+      return L"HKEY_CURRENT_USER";
+    case HKEY_LOCAL_MACHINE:
+      return L"HKEY_LOCAL_MACHINE";
+    case HKEY_USERS:
+      return L"HKEY_USERS";
+  }
+  return L"unknown";
+}
+
+// Tries to open the key hive\path and outputs the result.
+// "output" is the stream used for logging.
+void TryOpenKey(const HKEY hive, const wchar_t *path, FILE *output) {
+  HKEY key;
+  LONG err_code = ::RegOpenKeyEx(hive,
+                                 path,
+                                 0,  // Reserved, must be 0.
+                                 MAXIMUM_ALLOWED,
+                                 &key);
+  if (ERROR_SUCCESS == err_code) {
+    fprintf(output, "[GRANTED] Opening key \"%S\\%S\". Handle 0x%p\r\n",
+            HKEYToString(hive),
+            path,
+            key);
+    ::RegCloseKey(key);
+  } else {
+    fprintf(output, "[BLOCKED] Opening key \"%S\\%S\". Error %d\r\n",
+            HKEYToString(hive),
+            path,
+            err_code);
+  }
+}
+
+void POCDLL_API TestRegistry(HANDLE log) {
+  HandleToFile handle2file;
+  FILE *output = handle2file.Translate(log, "w");
+
+  TryOpenKey(HKEY_LOCAL_MACHINE, NULL, output);
+  TryOpenKey(HKEY_CURRENT_USER, NULL, output);
+  TryOpenKey(HKEY_USERS, NULL, output);
+  TryOpenKey(HKEY_LOCAL_MACHINE,
+             L"Software\\Microsoft\\Windows NT\\CurrentVersion\\WinLogon",
+             output);
+}