CVE-2024-43770
📋 TL;DR
This vulnerability allows remote attackers to execute arbitrary code on Android devices via Bluetooth Low Energy (BLE) without user interaction. It affects Android devices with vulnerable Bluetooth stacks, potentially compromising device integrity and data confidentiality.
💻 Affected Systems
- Android devices with vulnerable Bluetooth stack implementation
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Complete device compromise allowing attackers to install malware, steal sensitive data, or maintain persistent access to the device.
Likely Case
Device crash or instability leading to denial of service, with potential for limited code execution in constrained environments.
If Mitigated
Minimal impact if Bluetooth is disabled or devices are not within attacker proximity, though risk remains for enabled devices.
🎯 Exploit Status
Exploitation requires proximity to target device but no authentication or user interaction.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2025 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2025-01-01
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System > System update. 2. Install January 2025 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable Bluetooth when not in use
AndroidTurn off Bluetooth to prevent potential exploitation via this attack vector
adb shell settings put global bluetooth_on 0
Settings > Connected devices > Connection preferences > Bluetooth > Toggle off
🧯 If You Can't Patch
- Disable Bluetooth completely in device settings
- Implement network segmentation to isolate vulnerable devices from critical systems
🔍 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 'January 1, 2025' or later date📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- GATT service discovery anomalies
- System crashes in Bluetooth stack processes
Network Indicators:
- Suspicious BLE traffic patterns
- Multiple connection attempts from unknown devices
SIEM Query:
source="android_logs" AND (process="bluetooth" OR process="com.android.bluetooth") AND (event="crash" OR event="exception")