CVE-2024-47292
📋 TL;DR
A path traversal vulnerability in the Bluetooth module allows attackers to access files outside the intended directory. This affects devices with vulnerable Bluetooth implementations, potentially exposing sensitive system files. The vulnerability impacts confidentiality of services using the Bluetooth module.
💻 Affected Systems
- Huawei devices with vulnerable Bluetooth modules
📦 What is this software?
Emui by Huawei
Emui by Huawei
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Unauthorized access to sensitive system files, configuration data, or credentials stored on the device through Bluetooth interface exploitation.
Likely Case
Limited file system access to directories accessible by the Bluetooth service, potentially exposing device information or configuration files.
If Mitigated
No file access beyond Bluetooth service permissions with proper input validation and directory restrictions.
🎯 Exploit Status
Exploitation requires Bluetooth access to target device; path traversal techniques needed to bypass directory restrictions.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/10/
Restart Required: Yes
Instructions:
1. Check Huawei security advisory for affected device models
2. Apply latest firmware/security updates from Huawei
3. Restart device after update installation
4. Verify Bluetooth module version is updated
🔧 Temporary Workarounds
Disable Bluetooth when not in use
allTurn off Bluetooth functionality to prevent exploitation attempts
Settings > Bluetooth > Turn Off
Restrict Bluetooth visibility
allSet Bluetooth to non-discoverable mode to reduce attack surface
Settings > Bluetooth > Visibility > Hidden/Non-discoverable
🧯 If You Can't Patch
- Disable Bluetooth functionality completely
- Implement network segmentation to isolate Bluetooth-enabled devices
- Monitor Bluetooth connections for suspicious activity
- Use device management policies to restrict Bluetooth usage
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Huawei security advisory; devices with unpatched Bluetooth modules are vulnerableCheck Version:
Settings > About Phone > Build Number/Software VersionVerify Fix Applied:
Verify firmware version matches or exceeds patched version listed in Huawei advisory; confirm Bluetooth service is updated📡 Detection & Monitoring
Log Indicators:
- Unusual Bluetooth connection attempts
- File access attempts from Bluetooth service context
- Path traversal patterns in Bluetooth service logs
Network Indicators:
- Suspicious Bluetooth pairing requests
- Unusual Bluetooth data transfers
- Multiple failed Bluetooth connection attempts
SIEM Query:
source="bluetooth" AND (event="file_access" OR event="directory_traversal")