CVE-2024-54099
📋 TL;DR
This CVE describes a file replacement vulnerability affecting certain Huawei devices. Attackers can replace critical files to compromise system integrity and access sensitive data. The vulnerability impacts specific Huawei consumer devices running vulnerable firmware versions.
💻 Affected Systems
- Huawei consumer devices (specific models not detailed in reference)
📦 What is this software?
Emui by Huawei
Emui by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete system compromise allowing attackers to replace system files, install persistent backdoors, steal all user data, and gain full control over the device.
Likely Case
Attackers replace configuration or data files to gain unauthorized access to sensitive information, modify device behavior, or disrupt normal operations.
If Mitigated
With proper access controls and monitoring, impact is limited to isolated file modifications that can be detected and restored.
🎯 Exploit Status
Exploitation likely requires some level of access to the device. No public exploit code identified at this time.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei advisory for specific patched firmware versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/12/
Restart Required: Yes
Instructions:
1. Visit Huawei consumer support website. 2. Check if your device model is affected. 3. Download and install the latest firmware update. 4. Reboot device after installation.
🔧 Temporary Workarounds
Restrict file access permissions
allImplement strict file permissions and access controls to prevent unauthorized file modifications
Disable unnecessary services
allTurn off any unnecessary network services or interfaces that could provide attack surface
🧯 If You Can't Patch
- Implement strict network segmentation to isolate vulnerable devices
- Enable file integrity monitoring to detect unauthorized file changes
🔍 How to Verify
Check if Vulnerable:
Check device firmware version against Huawei's advisory list of vulnerable versionsCheck Version:
Check device settings > About device > Build number/Software versionVerify Fix Applied:
Verify firmware version has been updated to patched version listed in Huawei advisory📡 Detection & Monitoring
Log Indicators:
- Unexpected file modification events
- Unauthorized access attempts to system directories
- File permission changes
Network Indicators:
- Unusual network connections to device management interfaces
- Suspicious file transfer patterns
SIEM Query:
event.category:file AND (event.action:modified OR event.action:created) AND file.path:/system/* AND NOT user.name:system