CVE-2021-39767 : Vulnerability Insights and Analysis

This CVE-2021-39767 article provides insights into a vulnerability affecting Android-12L in miniadb that could lead to privilege escalation without additional execution privileges.

Understanding CVE-2021-39767

This section delves into the details of the CVE-2021-39767 vulnerability affecting Android-12L.

What is CVE-2021-39767?

CVE-2021-39767 involves an insecure default value in miniadb, potentially allowing read/write access to recovery system properties in Android-12L, leading to local privilege escalation.

The Impact of CVE-2021-39767

The vulnerability could enable an attacker to escalate privileges locally without the need for additional execution privileges or user interaction.

Technical Details of CVE-2021-39767

This section covers technical aspects and specifics of the CVE-2021-39767 vulnerability.

Vulnerability Description

In miniadb, an insecure default value permits unauthorized access to recovery system properties.

Affected Systems and Versions

Product: Android
Versions: Android-12L

Exploitation Mechanism

Attackers can exploit the flaw to gain read/write access to recovery system properties, facilitating local privilege escalation.

Mitigation and Prevention

Learn how to mitigate and prevent exploitation of CVE-2021-39767.

Immediate Steps to Take

Disable miniadb or restrict access to prevent unauthorized modifications.
Regularly monitor system properties for unexpected changes.

Long-Term Security Practices

Implement principle of least privilege for user access.
Conduct regular security audits to detect vulnerabilities.

Patching and Updates

Apply security patches promptly to address the vulnerability and secure the system.