CVE-2024-42031
📋 TL;DR
This CVE describes an access permission verification vulnerability in Huawei device Settings modules that could allow unauthorized access to sensitive system settings or configuration data. It affects Huawei consumer devices running vulnerable software versions. The vulnerability impacts service confidentiality by potentially exposing protected settings information.
💻 Affected Systems
- Huawei consumer devices (specific models not detailed in provided reference)
📦 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
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain unauthorized access to sensitive device settings, potentially modifying security configurations or extracting confidential system information.
Likely Case
Local attackers or malicious apps bypass permission checks to access restricted settings pages or configuration data they shouldn't have access to.
If Mitigated
With proper app sandboxing and permission controls, impact is limited to accessing only non-critical settings within the Settings module.
🎯 Exploit Status
Local permission bypass vulnerabilities typically have low exploitation complexity but require some level of local access.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Specific version not provided in reference
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/8/
Restart Required: Yes
Instructions:
1. Check for system updates in device Settings. 2. Install latest security update from Huawei. 3. Restart device after update completes.
🔧 Temporary Workarounds
Restrict app permissions
allReview and restrict unnecessary app permissions, especially for Settings access
Disable unknown sources
allPrevent installation of apps from unknown sources to reduce attack surface
🧯 If You Can't Patch
- Implement strict app vetting and only install apps from trusted sources
- Use mobile device management (MDM) solutions to enforce security policies and monitor for suspicious Settings access
🔍 How to Verify
Check if Vulnerable:
Check device Settings > System & updates > Software update for available security patches. If August 2024 or later security patch is not installed, device may be vulnerable.Check Version:
Settings > About phone > Build number (for version) and Settings > Security > Security patch levelVerify Fix Applied:
Verify August 2024 or later security patch is installed in Settings > System & updates > Software update📡 Detection & Monitoring
Log Indicators:
- Unauthorized access attempts to Settings processes
- Permission denial logs for Settings module
- Suspicious app behavior accessing protected settings APIs
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable for typical consumer device deployment