CVE-2023-44112
📋 TL;DR
This CVE describes an out-of-bounds access vulnerability in Huawei/HarmonyOS device authentication modules that could allow unauthorized access to sensitive information. It affects Huawei consumer devices and HarmonyOS systems, potentially compromising confidentiality of device data.
💻 Affected Systems
- Huawei consumer devices
- HarmonyOS devices
📦 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
Attackers could bypass authentication mechanisms to access sensitive device data, user credentials, or authentication tokens, leading to complete device compromise.
Likely Case
Local attackers or malicious apps could exploit memory corruption to read unauthorized data from the authentication module, potentially exposing authentication-related information.
If Mitigated
With proper memory protection mechanisms and sandboxing, exploitation would be limited to reading specific memory regions without gaining full system access.
🎯 Exploit Status
Exploitation requires local access or ability to execute code on the device; no public exploit details available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: January 2024 security updates
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/1/
Restart Required: Yes
Instructions:
1. Check for available updates in device settings. 2. Install January 2024 security update. 3. Restart device after installation.
🔧 Temporary Workarounds
Restrict app permissions
allLimit application permissions to reduce attack surface
Disable unnecessary services
allTurn off unused authentication services if possible
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks
- Implement strict application whitelisting and monitoring
🔍 How to Verify
Check if Vulnerable:
Check device security patch level in Settings > About phone > Build numberCheck Version:
Settings > About phone > Build number (GUI only)Verify Fix Applied:
Verify security patch level shows January 2024 or later📡 Detection & Monitoring
Log Indicators:
- Authentication module crashes
- Memory access violations in system logs
- Unexpected authentication failures
Network Indicators:
- Unusual authentication attempts from local processes
SIEM Query:
source="device_logs" AND (event_type="crash" AND module="auth") OR (event_type="memory_violation")🔗 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
