CVE-2021-30817 : Vulnerability Insights and Analysis

A permissions issue in macOS Big Sur 11.5 allowed a malicious application to access user data related to Family Sharing accounts.

Understanding CVE-2021-30817

This CVE entry relates to a permissions vulnerability in Apple's macOS Big Sur.

What is CVE-2021-30817?

CVE-2021-30817 addresses a permissions issue where a malicious application could potentially access data associated with Family Sharing accounts used by the user.

The Impact of CVE-2021-30817

This vulnerability could result in unauthorized access to sensitive data about the user's accounts within the Family Sharing feature.

Technical Details of CVE-2021-30817

This section provides technical details about the vulnerability.

Vulnerability Description

The vulnerability stemmed from a lack of proper validation, allowing unauthorized access to data linked to Family Sharing accounts.

Affected Systems and Versions

Affected Product: macOS
Vendor: Apple
Affected Version: Less than 11.5

Exploitation Mechanism

A malicious application could exploit this vulnerability to gain access to user data associated with Family Sharing accounts.

Mitigation and Prevention

Learn about the steps to mitigate and prevent exploitation of CVE-2021-30817.

Immediate Steps to Take

Users are advised to update their macOS to version 11.5 or newer to mitigate the risk of exploitation.

Long-Term Security Practices

Practice good security hygiene, such as avoiding unknown or untrusted applications, to reduce the risk of unauthorized data access.

Patching and Updates

Regularly install security updates provided by Apple to address known vulnerabilities and enhance system security.