CVE-2024-0039
📋 TL;DR
This critical vulnerability in Android's Bluetooth stack allows remote attackers to execute arbitrary code without user interaction or additional privileges. It affects Android devices with vulnerable Bluetooth implementations, potentially compromising millions of devices.
💻 Affected Systems
- Android devices with Bluetooth functionality
📦 What is this software?
Android by Google
Android by Google
Android by Google
Android by Google
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise leading to data theft, surveillance, ransomware deployment, or botnet recruitment
Likely Case
Remote code execution allowing attacker to install malware, steal sensitive data, or pivot to internal networks
If Mitigated
Limited impact if Bluetooth is disabled or device is isolated from untrusted networks
🎯 Exploit Status
No authentication required, attacker only needs to be within Bluetooth range. Exploitation requires sending specially crafted Bluetooth packets.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: March 2024 Android Security Patch or later
Vendor Advisory: https://source.android.com/security/bulletin/2024-03-01
Restart Required: Yes
Instructions:
1. Check for Android system updates in Settings > System > System update. 2. Install March 2024 security patch or later. 3. Reboot device after installation.
🔧 Temporary Workarounds
Disable Bluetooth
androidTurn off Bluetooth functionality to prevent exploitation
Settings > Connected devices > Connection preferences > Bluetooth > Toggle off
Restrict Bluetooth visibility
androidSet Bluetooth to non-discoverable mode to reduce attack surface
Settings > Connected devices > Connection preferences > Bluetooth > Device name > Turn off 'Make device discoverable'
🧯 If You Can't Patch
- Disable Bluetooth completely when not in use
- Implement network segmentation to isolate Bluetooth-enabled devices from critical systems
🔍 How to Verify
Check if Vulnerable:
Check Android security patch level in Settings > About phone > Android version > Security patch level. If earlier than March 2024, device is vulnerable.Check Version:
adb shell getprop ro.build.version.security_patchVerify Fix Applied:
Verify security patch level shows March 2024 or later after applying update📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- Bluetooth stack crashes in system logs
- Suspicious process creation following Bluetooth activity
Network Indicators:
- Malformed Bluetooth packets
- Unusual Bluetooth traffic patterns
- Connection attempts from unknown devices
SIEM Query:
source="android_system" AND (event="bluetooth_crash" OR event="bluetooth_exception")🔗 References
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/015c618a0461def93138173a53daaf27ca0630c9
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/17044ccf3a2858633cad8f87926e752edfe0d8d8
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/f0f35273101518d1f3a660b151804e90d0249af3
- https://source.android.com/security/bulletin/2024-03-01
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/015c618a0461def93138173a53daaf27ca0630c9
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/17044ccf3a2858633cad8f87926e752edfe0d8d8
- https://android.googlesource.com/platform/packages/modules/Bluetooth/+/f0f35273101518d1f3a660b151804e90d0249af3
- https://source.android.com/security/bulletin/2024-03-01
