CVE-2023-48402
📋 TL;DR
This vulnerability allows local privilege escalation on affected Android devices without requiring user interaction. Attackers can exploit a missing permission check in the ppcfw_enable function to gain elevated privileges. This affects Google Pixel devices running vulnerable Android versions.
💻 Affected Systems
- Google Pixel devices
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install persistent malware, access sensitive data, and bypass security controls.
Likely Case
Local attackers gaining root access to install malicious apps, steal credentials, or disable security features.
If Mitigated
Limited impact if devices are fully patched and have proper security controls like verified boot and app sandboxing.
🎯 Exploit Status
Requires local access but no user interaction; exploitation involves kernel-level manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: December 2023 Android security patch level
Vendor Advisory: https://source.android.com/security/bulletin/pixel/2023-12-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install December 2023 security patch. 3. Reboot device to apply kernel updates.
🔧 Temporary Workarounds
Restrict physical access
allLimit physical access to devices to prevent local exploitation
Enable verified boot
androidEnsure verified boot is enabled to detect kernel modifications
🧯 If You Can't Patch
- Isolate vulnerable devices from sensitive networks and data
- Implement strict access controls and monitor for suspicious local activity
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch levelCheck Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows December 2023 or later📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- Unexpected privilege escalation attempts in audit logs
- SELinux denials related to ppcfw
Network Indicators:
- None - this is a local exploit
SIEM Query:
source="android" AND (event_type="kernel_panic" OR privilege_escalation="true")