CVE-2025-32317
📋 TL;DR
This CVE describes an information disclosure vulnerability in Android's App Widget component where a malicious app could trick the system into revealing sensitive data without user interaction. The vulnerability affects Android devices running vulnerable versions, allowing local attackers to access information they shouldn't have permission to view. No additional execution privileges are needed for exploitation.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
An attacker could access sensitive app data, user information, or system data that should be protected, potentially leading to privacy violations or credential theft.
Likely Case
Local information disclosure where malicious apps can access limited sensitive data from other apps or system components without user knowledge.
If Mitigated
With proper app sandboxing and security controls, the impact would be limited to non-critical data within the app's own sandbox.
🎯 Exploit Status
Exploitation requires creating a malicious app that abuses the confused deputy pattern in the App Widget component. No user interaction needed once app is installed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Android security updates including the fix for Android 16
Vendor Advisory: https://source.android.com/security/bulletin/android-16
Restart Required: No
Instructions:
1. Check for Android security updates in device settings. 2. Install the latest security patch from your device manufacturer. 3. Ensure the device is running a version that includes the fix mentioned in the Android security bulletin.
🔧 Temporary Workarounds
Disable App Widgets
allRemove or disable unnecessary app widgets from the home screen to reduce attack surface
Long-press on widget > Remove or Disable
Restrict App Installations
allOnly install apps from trusted sources like Google Play Store
Settings > Security > Install unknown apps > Disable for all apps
🧯 If You Can't Patch
- Implement mobile device management (MDM) to control app installations
- Use application allowlisting to only permit trusted apps to run
🔍 How to Verify
Check if Vulnerable:
Check Android version in Settings > About phone > Android version. Compare with affected versions in the security bulletin.Check Version:
adb shell getprop ro.build.version.releaseVerify Fix Applied:
Verify the security patch level in Settings > About phone > Android security patch level. Ensure it includes the fix for Android 16.📡 Detection & Monitoring
Log Indicators:
- Unusual App Widget permission requests
- Multiple failed widget binding attempts from untrusted apps
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
source="android_logs" AND ("AppWidget" OR "widget_bind") AND ("permission_denied" OR "security_exception")