CVE-2020-0400 : What You Need to Know

Android NotificationMgr.java in showDataRoamingNotification has a possible permission bypass vulnerability with User execution privileges needed. This could result in local information disclosure without user interaction. Android versions 10 and 11 are affected.

Understanding CVE-2020-0400

This CVE relates to an information disclosure vulnerability in Android's NotificationMgr.java.

What is CVE-2020-0400?

The CVE-2020-0400 vulnerability is a potential permission bypass issue in the showDataRoamingNotification function of NotificationMgr.java in Android.

The Impact of CVE-2020-0400

The vulnerability could allow an attacker to bypass permissions, leading to local information disclosure without requiring user interaction.

Technical Details of CVE-2020-0400

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability in showDataRoamingNotification of NotificationMgr.java could result in a permission bypass, enabling local information disclosure.

Affected Systems and Versions

Product: Android
Affected Versions: Android-11 and Android-10

Exploitation Mechanism

The exploitation of this vulnerability does not require user interaction, making it more critical.

Mitigation and Prevention

To address CVE-2020-0400, follow these steps:

Immediate Steps to Take

Apply security patches provided by Android promptly.
Monitor updates from the vendor for any security advisories.
Limit app installations to trusted sources only.

Long-Term Security Practices

Regularly update the Android operating system to the latest version.
Implement mobile security best practices, such as using strong passwords and enabling app verification.

Patching and Updates

Stay informed about security updates from Android and ensure timely installation of patches.