CVE-2021-30718 : Security Advisory and Response

This CVE-2021-30718 article provides insights into a security vulnerability in macOS that allows non-privileged users to modify restricted settings.

Understanding CVE-2021-30718

This section delves into the impact, technical details, mitigation, and preventive measures for CVE-2021-30718.

What is CVE-2021-30718?

The vulnerability in macOS could enable non-privileged users to alter restricted settings, posing a security risk and potentially allowing unauthorized system changes.

The Impact of CVE-2021-30718

The issue, addressed in macOS Big Sur 11.4, is critical as it grants lower-privileged users the ability to manipulate important system configurations.

Technical Details of CVE-2021-30718

Inspecting the vulnerability's description, affected systems, versions, and exploitation mechanisms.

Vulnerability Description

Improved checks were implemented in macOS Big Sur 11.4 to prevent non-privileged users from tampering with restricted settings.

Affected Systems and Versions

The vulnerability impacts custom versions of macOS with a version less than 11.4, allowing unauthorized users to perform system modifications.

Exploitation Mechanism

Non-privileged users can exploit the flaw to edit limited system settings, potentially compromising system integrity.

Mitigation and Prevention

Guidance on immediate response steps, long-term security practices, and the importance of timely patching and updates.

Immediate Steps to Take

Users should update their macOS to version 11.4 to mitigate the vulnerability and prevent unauthorized changes to essential system configurations.

Long-Term Security Practices

Regularly updating macOS ensures protection against known vulnerabilities and enhances system security against potential exploits.

Patching and Updates

Apple's release of macOS Big Sur 11.4 addresses the vulnerability, emphasizing the significance of installing security patches to safeguard system integrity.