CVE-2024-30418
📋 TL;DR
This CVE describes an insufficient permission verification vulnerability in the app management module of Huawei/HarmonyOS devices. Successful exploitation could allow attackers to affect system availability, potentially causing denial-of-service conditions. This affects Huawei smartphones and other devices running vulnerable HarmonyOS versions.
💻 Affected Systems
- Huawei smartphones
- HarmonyOS devices
📦 What is this software?
Emui by Huawei
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability or persistent denial-of-service affecting core device functionality
Likely Case
Temporary service disruption or app management functionality impairment
If Mitigated
Minimal impact with proper access controls and monitoring in place
🎯 Exploit Status
Requires app installation or management interaction; likely requires some level of device access
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Specific patch versions in Huawei April 2024 security updates
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/4/
Restart Required: Yes
Instructions:
1. Check for system updates in device settings. 2. Install the latest security update from Huawei. 3. Restart device after installation.
🔧 Temporary Workarounds
Restrict app installations
allOnly install apps from trusted sources and disable unknown sources installation
Monitor app permissions
allRegularly review and restrict unnecessary app permissions
🧯 If You Can't Patch
- Isolate affected devices from critical networks
- Implement strict app installation policies and monitoring
🔍 How to Verify
Check if Vulnerable:
Check device HarmonyOS version in Settings > About phone > HarmonyOS versionCheck Version:
Settings navigation only - no command line availableVerify Fix Applied:
Verify installed security update includes April 2024 patches in Settings > System & updates > Software update📡 Detection & Monitoring
Log Indicators:
- Unexpected app management activities
- Permission escalation attempts
- System service disruptions
Network Indicators:
- Unusual app update patterns from untrusted sources
SIEM Query:
Not applicable for mobile devices without enterprise logging integration🔗 References
- https://consumer.huawei.com/en/support/bulletin/2024/4/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202404-0000001880501689
- https://consumer.huawei.com/en/support/bulletin/2024/4/
- https://device.harmonyos.com/en/docs/security/update/security-bulletins-202404-0000001880501689
