CVE-2021-1853 : Security Advisory and Response

This CVE record addresses a logic issue in macOS that allowed a local attacker to escalate their privileges. The issue has been resolved in macOS Big Sur 11.3.

Understanding CVE-2021-1853

This section will provide insights into the nature and impact of CVE-2021-1853.

What is CVE-2021-1853?

CVE-2021-1853 is a logic issue in macOS that could enable a local attacker to elevate their privileges within the system.

The Impact of CVE-2021-1853

The vulnerability could potentially allow a local attacker to gain higher privileges on the targeted system, compromising its security.

Technical Details of CVE-2021-1853

In this section, we will delve into the specific technical details of CVE-2021-1853.

Vulnerability Description

The vulnerability arises from a logic issue related to state management in macOS systems, allowing unauthorized privilege escalation.

Affected Systems and Versions

macOS versions prior to 11.3 are impacted by this vulnerability, potentially leaving them exposed to local privilege escalation attacks.

Exploitation Mechanism

A local attacker could exploit this vulnerability to manipulate state data and gain elevated privileges within the macOS environment.

Mitigation and Prevention

Learn how to effectively address and mitigate the risks associated with CVE-2021-1853.

Immediate Steps to Take

It is recommended to update affected macOS systems to version 11.3 or newer to eliminate this vulnerability and prevent potential privilege escalation attacks.

Long-Term Security Practices

Implementing robust security measures, such as least privilege access policies and regular security updates, can help enhance the overall security posture of macOS environments.

Patching and Updates

Regularly monitor and apply security patches and updates provided by Apple to ensure that known vulnerabilities, like CVE-2021-1853, are effectively patched to prevent exploitation.