CVE-2021-30767 : Vulnerability Insights and Analysis

A logic issue was addressed in Apple products like macOS, iOS, iPadOS, and watchOS, potentially allowing a local user to modify protected parts of the file system.

Understanding CVE-2021-30767

This vulnerability affects multiple Apple products, including macOS, iOS, iPadOS, and watchOS, due to a logic issue that could be exploited by a local user.

What is CVE-2021-30767?

CVE-2021-30767 is a logic issue in Apple products, leading to improved state management, but with a potential risk of allowing a local user to make unauthorized modifications to protected areas of the file system.

The Impact of CVE-2021-30767

The security flaw in CVE-2021-30767 could be exploited by an attacker with local access to the affected Apple devices to tamper with sensitive parts of the file system, potentially leading to unauthorized modifications and data breaches.

Technical Details of CVE-2021-30767

The vulnerability is addressed in the following Apple products and versions:

Vulnerability Description

The logic issue was resolved in macOS Big Sur 11.6.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2, iPadOS 15.2, and watchOS 8.3. This fix mitigates the risk of a local user manipulating protected file system components.

Affected Systems and Versions

Apple devices running macOS versions earlier than 11.6.2, iOS and iPadOS versions prior to 15.2, and watchOS versions prior to 8.3 are vulnerable to this security issue.

Exploitation Mechanism

The vulnerability arises from a logic flaw in the state management of Apple's operating systems, allowing a local user to exploit this weakness and potentially gain unauthorized access to protected file system areas.

Mitigation and Prevention

To address CVE-2021-30767, users and administrators are encouraged to take the following steps:

Immediate Steps to Take

Ensure all Apple devices are updated to the latest versions where the vulnerability is patched.
Monitor for any unauthorized file system modifications.

Long-Term Security Practices

Regularly update Apple devices to the latest software versions to mitigate known security risks.
Implement access controls and user permissions to limit the impact of potential logic issues.

Patching and Updates

Apple has released patches for this vulnerability in macOS Big Sur 11.6.2, macOS Monterey 12.1, Security Update 2021-008 Catalina, iOS 15.2, iPadOS 15.2, and watchOS 8.3. Users should ensure prompt installation of these updates to enhance system security.