CVE-2021-33089 : Exploit Details and Defense Strategies

A vulnerability has been identified in the Intel(R) NUC HDMI Firmware Update Tool for NUC8i3BE, NUC8i5BE, NUC8i7BE before version 1.78.4.0.4 that could allow an authenticated user to potentially escalate privileges locally. Here's all you need to know about CVE-2021-33089.

Understanding CVE-2021-33089

This section delves into the specifics of CVE-2021-33089.

What is CVE-2021-33089?

The vulnerability arises due to improper access control in the software installer for the Intel(R) NUC HDMI Firmware Update Tool for NUC8i3BE, NUC8i5BE, NUC8i7BE before version 1.78.4.0.4, enabling an authenticated user to potentially escalate privileges via local access.

The Impact of CVE-2021-33089

If exploited, the vulnerability could lead to an escalation of privilege, granting unauthorized access to certain system functions that should be restricted.

Technical Details of CVE-2021-33089

This section outlines the technical details of CVE-2021-33089.

Vulnerability Description

The vulnerability stems from insufficient access control in the software installer, allowing a loophole for privilege escalation.

Affected Systems and Versions

Systems running the Intel(R) NUC HDMI Firmware Update Tool for NUC8i3BE, NUC8i5BE, NUC8i7BE before version 1.78.4.0.4 are vulnerable to this exploit.

Exploitation Mechanism

An authenticated user could exploit this vulnerability locally to elevate their privileges on the affected systems.

Mitigation and Prevention

Understanding how to mitigate and prevent CVE-2021-33089 is crucial for system security.

Immediate Steps to Take

Users are advised to update the Intel(R) NUC HDMI Firmware Update Tool to version 1.78.4.0.4 or above to prevent potential privilege escalation.

Long-Term Security Practices

Implementing robust access control mechanisms and regular security updates can help mitigate the risk of privilege escalation vulnerabilities.

Patching and Updates

Frequent software updates and patches from Intel are essential to address known vulnerabilities and enhance system security.