CVE-2021-28482 : Vulnerability Insights and Analysis

A detailed look into the Microsoft Exchange Server Remote Code Execution Vulnerability (CVE-2021-28482) that was published on April 13, 2021.

Understanding CVE-2021-28482

This section delves into the impact, technical details, and mitigation strategies related to CVE-2021-28482.

What is CVE-2021-28482?

The Microsoft Exchange Server Remote Code Execution Vulnerability (CVE-2021-28482) allows an attacker to execute arbitrary code on the vulnerable system.

The Impact of CVE-2021-28482

This vulnerability has a base severity of HIGH with a CVSS base score of 8.8. It enables remote code execution, leading to potential compromise of sensitive data.

Technical Details of CVE-2021-28482

Explore the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

CVE-2021-28482 affects Microsoft Exchange Server versions 2013, 2016, and 2019. It arises due to improper validation of user-supplied input.

Affected Systems and Versions

The vulnerability impacts Microsoft Exchange Server 2013 CU23, 2016 CU19 and CU20, and 2019 CU8 and CU9 on x64-based systems.

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted request to the vulnerable Exchange server, allowing them to execute code.

Mitigation and Prevention

Discover the immediate steps and long-term security practices to safeguard systems against CVE-2021-28482.

Immediate Steps to Take

Immediately apply the security updates provided by Microsoft to mitigate the risk of exploitation. Ensure thorough monitoring for any signs of unauthorized access.

Long-Term Security Practices

Implement strong perimeter security measures, conduct regular security assessments, and educate users on email security best practices to prevent future vulnerabilities.

Patching and Updates

Regularly update and patch Microsoft Exchange Server to ensure that the system is protected against known vulnerabilities.