CVE-2021-0381 Explained : Impact and Mitigation

A vulnerability has been identified in Android-11 that allows a potential permission bypass leading to local information disclosure without user interaction. This CVE has been assigned the ID CVE-2021-0381.

Understanding CVE-2021-0381

This section delves into the details of the CVE-2021-0381 vulnerability in Android-11.

What is CVE-2021-0381?

The vulnerability exists in the updateNotifications of DeviceStorageMonitorService.java, where an unsafe PendingIntent can be exploited to bypass permissions, potentially resulting in local information disclosure.

The Impact of CVE-2021-0381

Exploiting this vulnerability could allow an attacker to disclose sensitive information locally without requiring user interaction, posing a risk to data privacy and security.

Technical Details of CVE-2021-0381

Outlined here are the technical aspects of CVE-2021-0381 affecting Android-11.

Vulnerability Description

The vulnerability arises from an unsafe PendingIntent in the updateNotifications of DeviceStorageMonitorService.java, enabling a potential permission bypass and subsequent local information disclosure.

Affected Systems and Versions

The affected product is Android, specifically version Android-11.

Exploitation Mechanism

The exploitation of this vulnerability does not require user interaction, making it easier for threat actors to access sensitive information.

Mitigation and Prevention

In this section, we explore steps to mitigate the exploitation of CVE-2021-0381 in Android-11.

Immediate Steps to Take

Users should be cautious while interacting with notifications in Android-11 to avoid potential exploitation of the disclosed information.

Long-Term Security Practices

Implementing strong security measures and keeping systems updated can help prevent unauthorized disclosure of local information.

Patching and Updates

Ensure that the latest security patches and updates are installed on Android devices to address and fix the CVE-2021-0381 vulnerability.