CVE-2022-31757
📋 TL;DR
This vulnerability in Huawei/HarmonyOS setting modules involves improper API usage that could allow unauthorized access to sensitive data. It affects Huawei smartphones and devices running HarmonyOS. Successful exploitation could compromise data confidentiality.
💻 Affected Systems
- Huawei smartphones
- HarmonyOS devices
📦 What is this software?
Emui by Huawei
Emui by Huawei
Emui by Huawei
Emui by Huawei
Emui by Huawei
Harmonyos by Huawei
Magic Ui by Huawei
Magic Ui by Huawei
Magic Ui by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Attackers could access sensitive user data including personal information, settings, and potentially authentication tokens stored by the settings module.
Likely Case
Local attackers or malicious apps could access restricted settings data they shouldn't have permission to view.
If Mitigated
With proper app sandboxing and permission controls, impact would be limited to data accessible within the app's normal permissions.
🎯 Exploit Status
Exploitation likely requires local access or malicious app installation. No public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: June 2022 security update for HarmonyOS
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2022/6/
Restart Required: Yes
Instructions:
1. Check for system updates in device Settings > System & updates > Software update. 2. Install June 2022 security update. 3. Restart device after installation completes.
🔧 Temporary Workarounds
Restrict app permissions
allReview and limit app permissions, especially for settings access
Avoid untrusted apps
allOnly install apps from official Huawei AppGallery
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks
- Implement mobile device management with strict app whitelisting
🔍 How to Verify
Check if Vulnerable:
Check HarmonyOS version in Settings > About phone > HarmonyOS version. If before June 2022 security update, likely vulnerable.Check Version:
Settings > About phone > HarmonyOS versionVerify Fix Applied:
Verify HarmonyOS version shows June 2022 security update installed in Settings > About phone > HarmonyOS version.📡 Detection & Monitoring
Log Indicators:
- Unusual settings access patterns
- Failed permission requests for settings APIs
Network Indicators:
- Not applicable - local vulnerability
SIEM Query:
Not applicable - local device vulnerability without network indicators🔗 References
- https://consumer.huawei.com/en/support/bulletin/2022/6/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202206-0000001270350482
- https://consumer.huawei.com/en/support/bulletin/2022/6/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202206-0000001270350482
