tests/tests/security/src/android/security/cts/KeystoreExploitTest.java

/*
 * Copyright (C) 2011 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package android.security.cts;

import android.test.AndroidTestCase;

import java.io.File;
import java.lang.reflect.Method;

public class KeystoreExploitTest extends AndroidTestCase {
    public void testKeystoreCrash() throws Exception {
        int pid = Proc.findPidFor("/system/bin/keystore");

        Class<?> keystoreClass = Class.forName("android.security.KeyStore");
        Method getInstance = keystoreClass.getMethod("getInstance");
        Method get = keystoreClass.getMethod("get", String.class);

        Object keystore = getInstance.invoke(null);
        String keyName = "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA "
                + "AAAA AAAA AAAA AAAA";
        get.invoke(keystore, keyName);

        Thread.sleep(2000); // give keystore some time to crash

        assertTrue("PID=" + pid + " crashed due to a malformed key name.",
                new File("/proc/" + pid + "/cmdline").exists());
    }
}