CVE-2021-0983 : Security Advisory and Response

This article provides insights into CVE-2021-0983, which impacts Android devices running version Android-12L.

Understanding CVE-2021-0983

CVE-2021-0983 is a vulnerability found in the createAdminSupportIntent function of DevicePolicyManagerService.java on Android devices.

What is CVE-2021-0983?

The vulnerability allows potential disclosure of information regarding the installed device/profile owner package name due to side channel information disclosure, leading to local information exposure without requiring extra execution privileges.

The Impact of CVE-2021-0983

Exploitation of this vulnerability could result in local information disclosure without the need for user interaction.

Technical Details of CVE-2021-0983

This section outlines the technical details of the CVE.

Vulnerability Description

In the createAdminSupportIntent function of DevicePolicyManagerService.java, there is a possibility of disclosing information about the installed device/profile owner package name due to side channel information exposure.

Affected Systems and Versions

The issue affects Android devices specifically running on Android-12L.

Exploitation Mechanism

The vulnerability can be exploited to achieve local information disclosure without requiring additional execution privileges or user interaction.

Mitigation and Prevention

To mitigate the risks associated with CVE-2021-0983, the following steps are recommended:

Immediate Steps to Take

Regularly check for security updates and apply patches promptly.
Monitor official Android security bulletins for relevant information.

Long-Term Security Practices

Employ security best practices such as limiting unnecessary permissions.
Educate users about the importance of keeping their devices updated.

Patching and Updates

Ensure that Android devices are updated to the latest version to address known security vulnerabilities.