CVE-2020-9261
📋 TL;DR
A type confusion vulnerability in HUAWEI Mate 30 smartphones allows attackers to execute arbitrary code by tricking users into installing and running a malicious application. This affects HUAWEI Mate 30 devices running versions earlier than 10.1.0.150(C00E136R5P3). Successful exploitation could compromise device security and user data.
💻 Affected Systems
- HUAWEI Mate 30
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise allowing attacker to execute arbitrary code with system privileges, access sensitive data, install persistent malware, or use device as part of botnet.
Likely Case
Malicious app gains elevated privileges to access sensitive user data, install additional malware, or perform unauthorized actions on the device.
If Mitigated
Attack fails due to user not installing malicious app, device being patched, or security controls preventing app execution.
🎯 Exploit Status
Requires social engineering to trick user into installing malicious application, then execution triggers the vulnerability
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.1.0.150(C00E136R5P3) or later
Vendor Advisory: https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200701-05-smartphone-en
Restart Required: Yes
Instructions:
1. Go to Settings > System & updates > Software update. 2. Check for updates. 3. Install available update to version 10.1.0.150(C00E136R5P3) or later. 4. Restart device when prompted.
🔧 Temporary Workarounds
Restrict app installations
androidOnly install apps from official Huawei AppGallery or trusted sources, disable unknown sources installation
Settings > Security > More settings > Install apps from external sources > Disable for all apps
Enable Play Protect
androidEnable Google Play Protect to scan apps for malicious behavior
Google Play Store > Menu > Play Protect > Turn on Scan apps with Play Protect
🧯 If You Can't Patch
- Only install applications from official Huawei AppGallery or trusted sources
- Enable device encryption and use strong authentication methods
🔍 How to Verify
Check if Vulnerable:
Check device version in Settings > About phone > Build numberCheck Version:
Settings > About phone > Build numberVerify Fix Applied:
Verify version is 10.1.0.150(C00E136R5P3) or higher in Settings > About phone📡 Detection & Monitoring
Log Indicators:
- Unusual app installation events
- Process execution with unexpected privileges
- Crash logs from system services
Network Indicators:
- Unexpected network connections from system processes
- Communication with known malicious domains
SIEM Query:
Device logs showing app installation from unknown sources followed by privilege escalation attempts