CVE-2023-52107
📋 TL;DR
This CVE describes a permission verification vulnerability in Huawei's WMS (Window Manager Service) module on HarmonyOS devices. Attackers could exploit this to bypass intended permission checks and potentially access sensitive information. The vulnerability affects Huawei smartphones and tablets running specific versions of HarmonyOS.
💻 Affected Systems
- Huawei smartphones
- Huawei tablets
📦 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
⚠️ Risk & Real-World Impact
Worst Case
An attacker gains unauthorized access to sensitive system services or user data through the WMS module, potentially compromising device confidentiality.
Likely Case
Local privilege escalation allowing access to protected system functions or data that should require higher permissions.
If Mitigated
With proper access controls and patching, the vulnerability is eliminated and permission checks function as intended.
🎯 Exploit Status
Exploitation likely requires some level of access to the device; no public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2024 security updates for HarmonyOS
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/1/
Restart Required: Yes
Instructions:
1. Check for system updates in device Settings. 2. Install the January 2024 security update. 3. Restart device after installation.
🔧 Temporary Workarounds
Limit app installations
allOnly install apps from trusted sources like Huawei AppGallery to reduce attack surface
Disable developer options
allTurn off USB debugging and developer options if not needed
🧯 If You Can't Patch
- Isolate affected devices from untrusted networks
- Implement strict app installation policies and monitor for suspicious activity
🔍 How to Verify
Check if Vulnerable:
Check HarmonyOS version in Settings > About phone > HarmonyOS versionCheck Version:
Not applicable - check via device Settings interfaceVerify Fix Applied:
Verify HarmonyOS version includes January 2024 security updates📡 Detection & Monitoring
Log Indicators:
- Unusual permission requests in system logs
- Suspicious WMS module activity
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable without specific log sources from HarmonyOS devices🔗 References
- https://consumer.huawei.com/en/support/bulletin/2024/1/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202401-0000001799925977
- https://consumer.huawei.com/en/support/bulletin/2024/1/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202401-0000001799925977
