CVE-2024-20064
📋 TL;DR
This vulnerability in MediaTek's wlan service allows local attackers to write beyond allocated memory boundaries due to improper input validation. It enables local privilege escalation without requiring user interaction or additional execution privileges. Devices using affected MediaTek chipsets with vulnerable wlan firmware are at risk.
💻 Affected Systems
- MediaTek chipsets with wlan firmware
📦 What is this software?
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Full system compromise with kernel-level privileges, allowing complete device control, data theft, and persistence mechanisms installation.
Likely Case
Local privilege escalation from limited user to root/system-level access, enabling installation of malware, data access, and further system manipulation.
If Mitigated
Limited impact if proper kernel hardening, SELinux/apparmor policies, and privilege separation are implemented, though vulnerability still exists.
🎯 Exploit Status
Requires local access but no authentication. Exploitation depends on understanding wlan service internals and memory layout.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Patch ID: ALPS08572601
Vendor Advisory: https://corp.mediatek.com/product-security-bulletin/May-2024
Restart Required: Yes
Instructions:
1. Contact device manufacturer for firmware updates. 2. Apply MediaTek-provided patch ALPS08572601. 3. Update wlan firmware/driver. 4. Reboot device.
🔧 Temporary Workarounds
Disable wlan service
android/linuxTemporarily disable vulnerable wlan service to prevent exploitation
adb shell pm disable com.mediatek.wlan.service
systemctl stop wlan_service
Restrict service permissions
linuxApply SELinux/apparmor policies to restrict wlan service capabilities
setenforce 1
Apply custom SELinux policy for wlan service
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable devices
- Apply principle of least privilege and monitor for suspicious wlan service activity
🔍 How to Verify
Check if Vulnerable:
Check wlan service version and compare against patched versions from manufacturerCheck Version:
adb shell getprop ro.build.fingerprint or check firmware version in device settingsVerify Fix Applied:
Verify patch ALPS08572601 is applied via firmware version check📡 Detection & Monitoring
Log Indicators:
- Unusual wlan service crashes
- Privilege escalation attempts in system logs
- Suspicious memory access patterns
Network Indicators:
- Abnormal wlan service communication
- Unexpected local privilege changes
SIEM Query:
source="system_logs" AND (process="wlan_service" AND (event="crash" OR event="privilege_escalation"))