CVE-2024-23711
📋 TL;DR
CVE-2024-23711 is a kernel-level vulnerability in Android's device memory management that allows local privilege escalation without user interaction. Attackers can execute arbitrary code with kernel privileges, potentially gaining full system control. This affects Android devices running vulnerable kernel versions.
💻 Affected Systems
- Android
📦 What is this software?
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise with kernel-level persistence, data theft, and ability to install rootkits or backdoors.
Likely Case
Local privilege escalation allowing attackers to bypass security controls, access sensitive data, and install malicious applications.
If Mitigated
Limited impact if devices are fully patched, have SELinux enforcing mode, and follow Android security best practices.
🎯 Exploit Status
Requires local access but no user interaction. Exploitation involves kernel memory manipulation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: June 2024 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2024-06-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install June 2024 or later security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
SELinux Enforcement
linuxEnsure SELinux is in enforcing mode to limit kernel attack surface
getenforce
🧯 If You Can't Patch
- Restrict physical access to devices and implement strong device management policies
- Monitor for suspicious kernel module loading or privilege escalation attempts
🔍 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 June 2024 or later date📡 Detection & Monitoring
Log Indicators:
- Kernel panic logs
- SELinux denials related to devicemem_server
- Unexpected privilege escalation
Network Indicators:
- None - local exploitation only
SIEM Query:
source="android_kernel" AND ("devicemem_server" OR "privilege escalation")