CVE-2021-37010
📋 TL;DR
This CVE describes an information exposure vulnerability in Huawei smartphones running HarmonyOS. It allows unauthorized actors to access sensitive user information, compromising confidentiality. Affected users are those with vulnerable Huawei smartphone models running specific HarmonyOS versions.
💻 Affected Systems
- Huawei Smartphones
📦 What is this software?
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete compromise of user privacy including personal data, authentication credentials, and sensitive device information being exposed to attackers.
Likely Case
Exposure of user data such as contacts, messages, or device identifiers that could be used for targeted attacks or identity theft.
If Mitigated
Limited data exposure with proper access controls and network segmentation in place.
🎯 Exploit Status
Vulnerability requires specific conditions to exploit; no public exploit code available based on references.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: August 2021 security update or later
Vendor Advisory: https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202108-0000001180965965
Restart Required: Yes
Instructions:
1. Check for system updates in Settings > System & updates > Software update. 2. Install August 2021 security update or later. 3. Restart device after installation.
🔧 Temporary Workarounds
Disable unnecessary permissions
allReview and restrict app permissions to minimize data exposure surface
Network isolation
allUse device on trusted networks only and avoid public Wi-Fi
🧯 If You Can't Patch
- Isolate affected devices from sensitive networks and data
- Implement strict access controls and monitor for unusual data access patterns
🔍 How to Verify
Check if Vulnerable:
Check HarmonyOS version in Settings > About phone > HarmonyOS version. If version predates August 2021 security updates, device is likely vulnerable.Check Version:
Settings > About phone > HarmonyOS versionVerify Fix Applied:
Verify HarmonyOS version includes August 2021 or later security updates in Settings > About phone > HarmonyOS version.📡 Detection & Monitoring
Log Indicators:
- Unusual data access patterns
- Unauthorized permission requests
- Suspicious app behavior accessing sensitive data
Network Indicators:
- Unexpected data exfiltration from device
- Suspicious network connections accessing device data
SIEM Query:
Not applicable for consumer mobile devices; monitor for abnormal data access patterns in enterprise MDM solutions if deployed.