CVE-2024-51519
📋 TL;DR
This CVE describes an input validation vulnerability in Huawei's HDC module where parameters are not properly verified. Attackers could exploit this to cause denial of service conditions, affecting availability of affected systems. This impacts Huawei devices and software using vulnerable versions of the HDC module.
💻 Affected Systems
- Huawei devices with HDC module
📦 What is this software?
Harmonyos by Huawei
⚠️ Risk & Real-World Impact
Worst Case
Complete system unavailability or service disruption through crafted malicious input causing crashes or resource exhaustion.
Likely Case
Service interruption or degraded performance on affected systems, potentially requiring restart or recovery actions.
If Mitigated
Minimal impact with proper input validation and monitoring in place, potentially causing only minor service degradation.
🎯 Exploit Status
Exploitation requires sending specially crafted input to the HDC module; authentication status not specified in provided information.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/11/
Restart Required: Yes
Instructions:
1. Visit Huawei security advisory. 2. Identify affected products/versions. 3. Apply recommended security updates. 4. Restart affected systems.
🔧 Temporary Workarounds
Disable HDC module if not required
androidTemporarily disable the HDC module to prevent exploitation while awaiting patches
adb shell pm disable com.huawei.hdc
Implement network segmentation
allRestrict network access to HDC module interfaces
🧯 If You Can't Patch
- Implement strict input validation at application layer before HDC module processing
- Deploy network monitoring and intrusion detection for abnormal HDC module traffic patterns
🔍 How to Verify
Check if Vulnerable:
Check device/system version against Huawei security advisory; examine if HDC module is present and activeCheck Version:
adb shell getprop ro.build.version.incremental (for Android-based devices)Verify Fix Applied:
Verify system version matches patched version from Huawei advisory; test HDC module functionality📡 Detection & Monitoring
Log Indicators:
- HDC module crash logs
- Unusual input patterns to HDC services
- System resource exhaustion alerts
Network Indicators:
- Abnormal traffic to HDC module ports
- Unexpected connection attempts to HDC services
SIEM Query:
source="*hdc*" AND (event_type="crash" OR event_type="error")