CVE-2021-24085 : What You Need to Know

A detailed overview of the Microsoft Exchange Server Spoofing Vulnerability (CVE-2021-24085) including its impact, technical details, and mitigation strategies.

Understanding CVE-2021-24085

This section will cover what CVE-2021-24085 is all about.

What is CVE-2021-24085?

The Microsoft Exchange Server Spoofing Vulnerability (CVE-2021-24085) is a security issue that allows spoofing attacks, impacting certain versions of Microsoft Exchange Server.

The Impact of CVE-2021-24085

This vulnerability has a base severity rating of MEDIUM with a CVSS base score of 6.5. It can be exploited to carry out spoofing attacks on affected systems.

Technical Details of CVE-2021-24085

Delve deeper into the technical aspects of CVE-2021-24085.

Vulnerability Description

The vulnerability allows threat actors to spoof legitimate email addresses, potentially leading to phishing attacks or unauthorized access.

Affected Systems and Versions

Microsoft Exchange Server 2019 Cumulative Update 8, Microsoft Exchange Server 2016 Cumulative Update 19, Microsoft Exchange Server 2019 Cumulative Update 7, and Microsoft Exchange Server 2016 Cumulative Update 18 are affected versions.

Exploitation Mechanism

The vulnerability can be exploited by an attacker to send spoofed emails from a legitimate sender, deceiving users.

Mitigation and Prevention

Explore the steps to mitigate the risks associated with CVE-2021-24085.

Immediate Steps to Take

Users are advised to apply security patches provided by Microsoft to address the vulnerability.

Long-Term Security Practices

Implement email authentication protocols like SPF, DKIM, and DMARC to prevent email spoofing in the long term.

Patching and Updates

Regularly update Microsoft Exchange Server to the latest version to protect against known vulnerabilities.