CVE-2021-39751 Explained : Impact and Mitigation

This article provides details about CVE-2021-39751, a vulnerability in Android affecting version Android-12L.

Understanding CVE-2021-39751

CVE-2021-39751 is an information disclosure vulnerability in Android-12L that allows unauthorized reading of Bluetooth device names without proper permissions.

What is CVE-2021-39751?

The vulnerability in Settings allows the reading of Bluetooth device names without proper permissions, potentially leading to local information disclosure without requiring additional execution privileges.

The Impact of CVE-2021-39751

The vulnerability could result in local information disclosure without the need for user interaction, posing a risk of privacy breach.

Technical Details of CVE-2021-39751

This section covers the technical aspects of the vulnerability.

Vulnerability Description

The flaw in Android-12L lacks a permission check, enabling unauthorized access to Bluetooth device names through Settings.

Affected Systems and Versions

Product: Android
Versions: Android-12L

Exploitation Mechanism

Unauthorized parties can exploit this vulnerability to access Bluetooth device names without the required permissions, potentially resulting in local information disclosure.

Mitigation and Prevention

Learn how to mitigate the risks associated with CVE-2021-39751.

Immediate Steps to Take

Update Android devices to the latest available security patches.
Restrict access to the affected Settings area.
Monitor for any unauthorized access or information disclosures.

Long-Term Security Practices

Regularly update Android devices to ensure security patches are up to date.
Implement strict permission policies for accessing sensitive device information.

Patching and Updates

Apply security patches released by Android to address the vulnerability and prevent unauthorized access to Bluetooth device names.