CVE-2024-45442
📋 TL;DR
This vulnerability allows attackers to bypass permission verification in Huawei's DownloadProviderMain module APIs, potentially disrupting download services. It affects Huawei devices running vulnerable software versions. The impact is primarily on service availability.
💻 Affected Systems
- Huawei smartphones and tablets
📦 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 disruption of download services, preventing software updates and app installations on affected devices.
Likely Case
Temporary service degradation or denial of download functionality for specific applications.
If Mitigated
Minimal impact with proper network segmentation and API access controls in place.
🎯 Exploit Status
Exploitation requires API access to the DownloadProviderMain module; likely requires some level of device access or malicious app installation.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: Check Huawei security bulletin for specific patched versions
Vendor Advisory: https://consumer.huawei.com/en/support/bulletin/2024/9/
Restart Required: Yes
Instructions:
1. Check Huawei security bulletin for affected device models. 2. Install latest security update via Settings > System & updates > Software update. 3. Restart device after update completes.
🔧 Temporary Workarounds
Disable unnecessary download services
allRestrict background download services for non-essential applications
Application permission review
allAudit and restrict app permissions related to download management
🧯 If You Can't Patch
- Segment network to restrict API access to DownloadProviderMain services
- Implement application allowlisting to prevent unauthorized apps from accessing download APIs
🔍 How to Verify
Check if Vulnerable:
Check device software version in Settings > About phone > Software information and compare with Huawei security bulletinCheck Version:
Not applicable for mobile devices; use device settings menuVerify Fix Applied:
Verify security patch level in Settings > Security > Security update and ensure it includes September 2024 or later patches📡 Detection & Monitoring
Log Indicators:
- Unusual download service failures
- Multiple permission denial errors in system logs
- Unexpected API calls to DownloadProviderMain
Network Indicators:
- Abnormal download traffic patterns
- Unexpected connections to download servers
SIEM Query:
Not applicable for typical mobile device environments