CVE-2024-54110
📋 TL;DR
This CVE describes a cross-process screen stack vulnerability in Huawei's UIExtension module that could allow unauthorized access to screen content across application boundaries. Successful exploitation could lead to information disclosure of sensitive data displayed on screen. This affects Huawei devices running vulnerable versions of their software.
💻 Affected Systems
- Huawei devices with UIExtension module
📦 What is this software?
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers could capture sensitive information displayed on screen including passwords, personal data, financial information, or confidential business data from any running application.
Likely Case
Information leakage of non-critical application data or partial screen content, potentially exposing user interface elements or application state.
If Mitigated
Limited impact with proper application sandboxing and process isolation controls in place, potentially preventing cross-application data access.
🎯 Exploit Status
Exploitation likely requires local access or malicious app installation. Cross-process vulnerabilities typically require specific conditions to trigger.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/12/
Restart Required: Yes
Instructions:
1. Check Huawei security advisory for affected versions. 2. Apply latest security updates via device settings. 3. Reboot device after update installation.
🔧 Temporary Workarounds
Restrict app permissions
allReview and restrict unnecessary app permissions, especially accessibility services and screen overlay permissions
Disable unnecessary UIExtension features
allDisable any unnecessary cross-application UI sharing features if configurable
🧯 If You Can't Patch
- Isolate sensitive applications on separate user profiles or secure containers
- Implement application allowlisting to prevent unauthorized app installations
🔍 How to Verify
Check if Vulnerable:
Check device software version against Huawei's security advisory for affected versionsCheck Version:
Settings > About phone > Software information (exact path may vary by device)Verify Fix Applied:
Verify software version has been updated to patched version listed in Huawei advisory📡 Detection & Monitoring
Log Indicators:
- Unusual cross-process UI access attempts
- Abnormal UIExtension module activity
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable for typical mobile device deployments