CVE-2022-22253
📋 TL;DR
CVE-2022-22253 is an integrity check validation vulnerability in Huawei's DFX module that could allow attackers to compromise system stability. This affects Huawei devices running HarmonyOS. Successful exploitation could lead to system crashes or instability.
💻 Affected Systems
- Huawei smartphones and tablets
📦 What is this software?
Emui by Huawei
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
Magic Ui by Huawei
⚠️ Risk & Real-World Impact
Worst Case
System crash leading to denial of service, potential data corruption, or device instability requiring reboot
Likely Case
System instability, application crashes, or degraded performance
If Mitigated
Minimal impact with proper patching and system monitoring
🎯 Exploit Status
Requires local access or malicious application installation; no public exploit code available
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Security patch level of 2022-04-05 or later
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2022/4/
Restart Required: Yes
Instructions:
1. Go to Settings > System & updates > Software update. 2. Check for updates. 3. Install the April 2022 security patch or later. 4. Restart device when prompted.
🔧 Temporary Workarounds
Disable unnecessary debugging features
allReduce attack surface by disabling developer options and debugging features
Settings > System & updates > Developer options > Toggle off
🧯 If You Can't Patch
- Restrict installation of untrusted applications
- Implement device management policies to monitor for suspicious behavior
🔍 How to Verify
Check if Vulnerable:
Check Settings > System & updates > Software update > Security patch level. If before April 2022, device is vulnerable.Check Version:
Settings > About phone > HarmonyOS version and Build numberVerify Fix Applied:
Verify security patch level shows 2022-04-05 or later date📡 Detection & Monitoring
Log Indicators:
- System crash logs
- DFX module error messages
- Unexpected system reboots
Network Indicators:
- None - local vulnerability
SIEM Query:
Search for system crash events or DFX-related errors in device logs🔗 References
- https://consumer.huawei.com/en/support/bulletin/2022/4/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202204-0000001224076294
- https://consumer.huawei.com/en/support/bulletin/2022/4/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-phones-202204-0000001224076294
