CVE-2021-39771 Explained : Impact and Mitigation

This CVE-2021-39771 article provides insights into a vulnerability in Android-12L that could allow local escalation of privilege.

Understanding CVE-2021-39771

This section delves into the details of the CVE-2021-39771 vulnerability.

What is CVE-2021-39771?

CVE-2021-39771 is a vulnerability in Android-12L that allows misrepresentation of app identity while adding a wifi network in Settings. This flaw could lead to local privilege escalation with no additional execution privileges required.

The Impact of CVE-2021-39771

The vulnerability could result in local escalation of privilege within the Android-12L environment.

Technical Details of CVE-2021-39771

Explore the technical aspects of CVE-2021-39771 in this section.

Vulnerability Description

The vulnerability in Android-12L stems from improper input validation in the Settings, enabling false app identity representation during wifi network addition, facilitating privilege escalation.

Affected Systems and Versions

Product: Android
Versions Affected: Android-12L

Exploitation Mechanism

The exploitation of this vulnerability requires user interaction, leveraging the improper input validation to escalate privileges.

Mitigation and Prevention

Learn how to mitigate and prevent CVE-2021-39771 in the following section.

Immediate Steps to Take

Monitor official Android security updates and apply patches promptly.
Educate users on safe practices while adding wifi networks.

Long-Term Security Practices

Regularly update Android devices to the latest firmware to address known vulnerabilities.
Implement network security measures to prevent unauthorized access.

Patching and Updates

Stay informed about security bulletins from Google Android and apply recommended patches promptly.