CVE-2023-39380
📋 TL;DR
This CVE describes a permission control vulnerability in Huawei audio modules that allows unauthorized access to audio device functions. Successful exploitation could cause audio devices to malfunction or be manipulated. Affected systems include Huawei devices running HarmonyOS with vulnerable audio components.
💻 Affected Systems
- Huawei smartphones
- Huawei tablets
- Huawei smart devices
📦 What is this software?
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of audio subsystem allowing denial of service, audio eavesdropping, or injection of malicious audio content.
Likely Case
Audio device malfunctions, service disruption, or unauthorized audio recording/playback capabilities.
If Mitigated
Limited impact with proper permission controls and isolation of audio services.
🎯 Exploit Status
Requires local access or compromised application; no public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: August 2023 security updates
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2023/8/
Restart Required: Yes
Instructions:
1. Check for system updates in device settings. 2. Install August 2023 security patch. 3. Reboot device after installation.
🔧 Temporary Workarounds
Restrict audio permissions
allReview and restrict audio-related permissions for all applications
Disable unnecessary audio services
allDisable audio services not required for device operation
🧯 If You Can't Patch
- Isolate affected devices from critical networks
- Implement strict application whitelisting and permission controls
🔍 How to Verify
Check if Vulnerable:
Check HarmonyOS version in Settings > About phone > HarmonyOS versionCheck Version:
Not applicable for mobile devices; use system settings interfaceVerify Fix Applied:
Verify August 2023 security patch is installed in Settings > System & updates > Software update📡 Detection & Monitoring
Log Indicators:
- Unauthorized audio service access attempts
- Audio permission violation logs
- Audio subsystem crash reports
Network Indicators:
- Unusual audio-related network traffic from devices
SIEM Query:
Not applicable - primarily local device vulnerability🔗 References
- https://consumer.huawei.com/en/support/bulletin/2023/8/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725
- https://consumer.huawei.com/en/support/bulletin/2023/8/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202308-0000001667644725
