CVE-2021-28450 : What You Need to Know

A denial of service vulnerability has been discovered in Microsoft SharePoint affecting various versions of the software.

Understanding CVE-2021-28450

This CVE record highlights a medium severity denial of service vulnerability in Microsoft SharePoint.

What is CVE-2021-28450?

The CVE-2021-28450 is a denial of service vulnerability found in Microsoft SharePoint.

The Impact of CVE-2021-28450

The vulnerability could allow an attacker to disrupt the normal functioning of affected Microsoft SharePoint servers, leading to a denial of service condition.

Technical Details of CVE-2021-28450

This section outlines the technical aspects of the CVE-2021-28450 vulnerability.

Vulnerability Description

The vulnerability in Microsoft SharePoint can be exploited to trigger a denial of service condition on the impacted systems.

Affected Systems and Versions

The vulnerability affects Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Enterprise Server 2013 Service Pack 1, Microsoft SharePoint Server 2019, and Microsoft SharePoint Foundation 2010 Service Pack 2.

Exploitation Mechanism

The vulnerability can be exploited by sending specially crafted requests to the affected Microsoft SharePoint servers, causing them to become unresponsive.

Mitigation and Prevention

Below are the steps to mitigate and prevent exploitation of CVE-2021-28450:

Immediate Steps to Take

Microsoft recommends applying the latest security updates provided by the company to address this vulnerability.

Long-Term Security Practices

Regularly update and patch Microsoft SharePoint servers to protect against known vulnerabilities.
Implement network security measures to reduce the risk of external attacks.

Patching and Updates

Stay informed about security advisories from Microsoft and promptly apply patches to secure the SharePoint environment.