CVE-2024-32990
📋 TL;DR
This CVE describes a permission verification vulnerability in Huawei's system sharing pop-up module. Successful exploitation could allow attackers to bypass intended permission checks, potentially affecting system availability. This primarily affects Huawei devices running HarmonyOS with specific software versions.
💻 Affected Systems
- Huawei smartphones and tablets
📦 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
An attacker could exploit this to bypass permission checks in the sharing module, potentially causing denial of service or disrupting system sharing functionality.
Likely Case
Local attackers with some access could disrupt sharing features or cause application instability through permission bypass.
If Mitigated
With proper patching and security controls, the impact is limited to minor functionality disruption at most.
🎯 Exploit Status
Exploitation likely requires some level of local access or user interaction. No public exploit details available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: May/June 2024 security updates for HarmonyOS
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/5/
Restart Required: Yes
Instructions:
1. Check for system updates in device settings. 2. Install the May/June 2024 security update. 3. Restart device after installation.
🔧 Temporary Workarounds
Disable unnecessary sharing features
allTemporarily disable system sharing pop-ups or limit sharing permissions
🧯 If You Can't Patch
- Restrict physical access to devices
- Implement application whitelisting to limit unauthorized apps
🔍 How to Verify
Check if Vulnerable:
Check HarmonyOS version in Settings > About phone > HarmonyOS version. If before May/June 2024 updates, likely vulnerable.Check Version:
Settings > About phone > HarmonyOS versionVerify Fix Applied:
Verify HarmonyOS version shows May/June 2024 security update installed. Check for absence of sharing permission bypass issues.📡 Detection & Monitoring
Log Indicators:
- Unexpected permission bypass attempts in system logs
- Sharing module crash logs
SIEM Query:
Look for HarmonyOS system logs containing sharing permission errors or unexpected sharing activity🔗 References
- https://consumer.huawei.com/en/support/bulletin/2024/5/
- https://consumer.huawei.com/en/support/bulletin/2024/6/
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-phones-202405-0000001902628049
- https://consumer.huawei.com/en/support/bulletin/2024/5/
- https://consumer.huawei.com/en/support/bulletin/2024/6/
- https://device.harmonyos.com/cn/docs/security/update/security-bulletins-phones-202405-0000001902628049
