CVE-2020-9254
📋 TL;DR
This vulnerability in HUAWEI P30 Pro smartphones allows attackers to execute arbitrary code through a logic error in parameter size checking. Attackers must trick users into installing a malicious application to exploit this flaw. Only HUAWEI P30 Pro devices running specific vulnerable firmware versions are affected.
💻 Affected Systems
- HUAWEI P30 Pro
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Full device compromise allowing attacker to execute arbitrary code with user privileges, potentially leading to data theft, surveillance, or further system exploitation.
Likely Case
Malicious application gains elevated privileges to access sensitive data, install additional malware, or perform unauthorized actions on the device.
If Mitigated
Attack fails due to updated firmware, application sandboxing, or user declining malicious app installation.
🎯 Exploit Status
Requires social engineering to trick user into installing malicious application. No public exploit code available.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 10.1.0.123(C432E19R2P5patch02), 10.1.0.126(C10E11R5P1), or 10.1.0.160(C00E160R2P8) depending on region/variant
Vendor Advisory: https://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200715-04-smartphone-en
Restart Required: Yes
Instructions:
1. Go to Settings > System & updates > Software update. 2. Check for updates. 3. Download and install available update. 4. Restart device when prompted.
🔧 Temporary Workarounds
Application Installation Restriction
androidRestrict installation of applications from unknown sources
Settings > Security > Install unknown apps > Disable for all apps
Application Source Verification
allOnly install applications from official app stores
🧯 If You Can't Patch
- Replace device with updated model or different manufacturer device
- Implement mobile device management (MDM) with strict application control policies
🔍 How to Verify
Check if Vulnerable:
Check Settings > About phone > Build number. If version is earlier than patched versions listed in affected_systems, device is vulnerable.Check Version:
adb shell getprop ro.build.display.idVerify Fix Applied:
Verify Build number matches or exceeds patched versions: 10.1.0.123(C432E19R2P5patch02), 10.1.0.126(C10E11R5P1), or 10.1.0.160(C00E160R2P8)📡 Detection & Monitoring
Log Indicators:
- Unexpected application installations
- Process execution with unusual parameters
- Security exception logs related to parameter validation
Network Indicators:
- Downloads from untrusted app repositories
- Unusual network traffic from mobile device
SIEM Query:
source="android_logs" AND (event="app_install" AND source!="play_store") OR (process="system_server" AND error="parameter_validation")