CVE-2019-15383 : Security Advisory and Response

The Allview X5 Android device is vulnerable to unauthorized system property modifications due to a pre-installed app.

Understanding CVE-2019-15383

The vulnerability in the Allview X5 Android device allows any co-located app to alter system properties without proper authorization.

What is CVE-2019-15383?

The Allview X5 Android device, with a specific build fingerprint, contains an app that permits unauthorized changes to system properties by other apps on the device.

The Impact of CVE-2019-15383

This vulnerability could lead to unauthorized access and modifications to critical system properties, potentially compromising the device's security and user data.

Technical Details of CVE-2019-15383

The technical aspects of the CVE-2019-15383 vulnerability are as follows:

Vulnerability Description

The Allview X5 Android device's pre-installed app, com.mediatek.wfo.impl, allows any co-located app to modify system properties without proper authorization.

Affected Systems and Versions

Product: Allview X5 Android device
Vendor: Allview
Versions: 8.1.0

Exploitation Mechanism

The vulnerability is exploited through the exported interface of the com.mediatek.wfo.impl app, enabling unauthorized apps to make changes to system properties.

Mitigation and Prevention

Protect your device from CVE-2019-15383 with the following steps:

Immediate Steps to Take

Disable or uninstall the com.mediatek.wfo.impl app if possible.
Regularly monitor app permissions and system changes.
Implement app whitelisting to control app behavior.

Long-Term Security Practices

Keep your device updated with the latest security patches.
Avoid downloading apps from untrusted sources.
Use reputable mobile security solutions to detect and prevent unauthorized activities.

Patching and Updates

Check for firmware updates from Allview to address the CVE-2019-15383 vulnerability.