CVE-2023-52114
📋 TL;DR
This CVE describes a data confidentiality vulnerability in Huawei's ScreenReader module that could allow unauthorized access to sensitive information. Successful exploitation may affect service integrity, potentially exposing user data or system information. This affects Huawei devices running HarmonyOS with the vulnerable ScreenReader component.
💻 Affected Systems
- Huawei devices with ScreenReader module
📦 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
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of sensitive user data accessible through ScreenReader, including potentially personal information, authentication tokens, or system credentials.
Likely Case
Unauthorized access to limited user data or system information through the ScreenReader interface, potentially leading to privacy violations.
If Mitigated
Minimal impact with proper access controls and isolation preventing exploitation even if vulnerability exists.
🎯 Exploit Status
Exploitation likely requires some level of access or interaction with the ScreenReader component. No public exploit code identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: As specified in Huawei January 2024 security bulletins
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 latest security update from Huawei. 3. Restart device after installation. 4. Verify update applied successfully.
🔧 Temporary Workarounds
Disable ScreenReader
allTemporarily disable the ScreenReader functionality if not required
Restrict App Permissions
allReview and restrict app permissions that might interact with accessibility services
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict app installation policies and review all installed applications
🔍 How to Verify
Check if Vulnerable:
Check device HarmonyOS version against affected versions in Huawei security bulletinsCheck Version:
Check in device Settings > About phone > HarmonyOS versionVerify Fix Applied:
Verify device has installed the January 2024 security update and shows updated version📡 Detection & Monitoring
Log Indicators:
- Unusual ScreenReader access patterns
- Unexpected accessibility service activations
- Permission escalation attempts
Network Indicators:
- Unusual data exfiltration from device
- Suspicious app communications
SIEM Query:
Search for ScreenReader or accessibility service anomalies in device logs🔗 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
