CVE-2021-30798 : Security Advisory and Response

A logic issue was addressed with improved state management in iOS 14.7, macOS Big Sur 11.5, and watchOS 7.6. This could allow a malicious application to bypass certain Privacy preferences.

Understanding CVE-2021-30798

This CVE concerns a logic issue found in Apple's operating systems that could potentially lead to bypassing Privacy preferences.

What is CVE-2021-30798?

CVE-2021-30798 is a vulnerability related to state management in iOS, macOS, and watchOS that allows a malicious app to circumvent specific Privacy settings provided by the user.

The Impact of CVE-2021-30798

The impact of this vulnerability is significant as it could enable unauthorized access to user Privacy preferences, potentially exposing sensitive information.

Technical Details of CVE-2021-30798

This section will explore the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability lies in the inadequate handling of state management within the affected Apple operating systems.

Affected Systems and Versions

iOS: Versions earlier than 14.7
macOS: Versions earlier than 11.5
watchOS: Versions earlier than 7.6

Exploitation Mechanism

A malicious application can exploit this vulnerability to override certain Privacy preferences, gaining unauthorized access to sensitive data.

Mitigation and Prevention

To secure your systems, consider the following steps:

Immediate Steps to Take

Update all iOS devices to version 14.7
Update macOS systems to version 11.5
Update watchOS devices to version 7.6
Exercise caution while granting permissions to applications

Long-Term Security Practices

Regularly update your Apple devices to the latest software versions
Practice principle of least privilege for app permissions
Implement additional security measures to restrict app access to sensitive data

Patching and Updates

Ensure prompt installation of official patches and updates released by Apple to address CVE-2021-30798.