CVE-2021-42304 : Exploit Details and Defense Strategies

CVE-2021-42304, also known as Azure RTOS Elevation of Privilege Vulnerability, was published on November 10, 2021, by Microsoft. This CVE affects Azure Real Time Operating System versions less than 6.1.9, with a base severity rating of MEDIUM (CVSS score of 6.6).

Understanding CVE-2021-42304

What is CVE-2021-42304?

Azure RTOS Elevation of Privilege Vulnerability is classified as an elevation of privilege vulnerability.

The Impact of CVE-2021-42304

This vulnerability could allow an attacker to elevate privileges on the affected system, possibly leading to unauthorized access or control.

Technical Details of CVE-2021-42304

Vulnerability Description

The vulnerability in Azure RTOS can be exploited to gain elevated privileges on the system.

Affected Systems and Versions

Vendor: Microsoft
Product: Azure Real Time Operating System
Versions affected: 6.0.0 - 6.1.9
Platform: Unknown

Exploitation Mechanism

The vulnerability can be exploited by a remote attacker to escalate privileges on the system.

Mitigation and Prevention

Immediate Steps to Take

Apply the necessary patches provided by Microsoft to address the vulnerability.
Implement least privilege access on systems to limit potential impacts.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Conduct security assessments and audits to identify potential weaknesses.

Patching and Updates

Ensure that Azure Real Time Operating System is updated to version 6.1.9 or higher to mitigate the vulnerability.