CVE-2021-0706 Explained : Impact and Mitigation

Android versions 10 and 11 are affected by a vulnerability in the PluginManagerImpl.java code, allowing for arbitrary app components to be disabled without proper permission checks. This could result in a local denial of service attack without requiring additional privileges or user interaction.

Understanding CVE-2021-0706

This CVE affects Android versions 10 and 11, potentially leading to a denial of service attack by exploiting a missing permission check in the PluginManagerImpl.java code.

What is CVE-2021-0706?

The vulnerability in the startListening function of PluginManagerImpl.java allows an attacker to disable arbitrary app components without the necessary permission checks. This flaw can be exploited to launch a local denial of service attack.

The Impact of CVE-2021-0706

The impact of this CVE is the potential for a local denial of service attack on Android devices running versions 10 and 11. The attack can be carried out without requiring any additional execution privileges or user interaction.

Technical Details of CVE-2021-0706

This section covers the technical aspects of the CVE, including vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability lies in the startListening function of PluginManagerImpl.java, allowing for the disabling of app components without proper permission checks, leading to a denial of service condition.

Affected Systems and Versions

Android versions 10 and 11 are affected by this vulnerability in the PluginManagerImpl.java code, making them susceptible to local denial of service attacks.

Exploitation Mechanism

By exploiting the missing permission check in PluginManagerImpl.java, threat actors can disable arbitrary app components, triggering a denial of service attack on Android devices.

Mitigation and Prevention

To address CVE-2021-0706, immediate steps should be taken to mitigate the risk and prevent potential attacks.

Immediate Steps to Take

Ensure that all Android devices running versions 10 and 11 are updated with the latest security patches and fixes to remediate the vulnerability and prevent exploitation.

Long-Term Security Practices

Implement a robust security strategy, including regular security updates, vulnerability assessments, and best practices to protect against potential threats and vulnerabilities.

Patching and Updates

Stay informed about security bulletins and updates from Android security to apply patches promptly and secure devices against known vulnerabilities.