CVE-2020-0973 : Security Advisory and Response

A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint servers.

Understanding CVE-2020-0973

A security vulnerability impacting several Microsoft SharePoint Server versions.

What is CVE-2020-0973?

A cross-site-scripting vulnerability in SharePoint servers could allow an attacker to execute malicious scripts.

The Impact of CVE-2020-0973

Attackers can perform actions on behalf of SharePoint users, leading to unauthorized access.
Potential for data theft or manipulation within the SharePoint environment.

Technical Details of CVE-2020-0973

Details regarding the vulnerability and affected systems.

Vulnerability Description

The vulnerability results from inadequate sanitization of web requests on SharePoint servers.

Affected Systems and Versions

Microsoft SharePoint Enterprise Server 2016
Microsoft SharePoint Enterprise Server 2013 Service Pack 1
Microsoft SharePoint Server 2019
Microsoft SharePoint Server 2010 Service Pack 2

Exploitation Mechanism

Attackers can exploit this vulnerability by sending a specially crafted web request to the SharePoint server.

Mitigation and Prevention

Steps to address and prevent exploitation of CVE-2020-0973.

Immediate Steps to Take

Apply security patches released by Microsoft promptly.
Implement strict input validation mechanisms in SharePoint applications.
Monitor and restrict user inputs to prevent malicious scripts.

Long-Term Security Practices

Regularly update SharePoint servers with the latest security patches.
Conduct security audits and penetration testing to identify vulnerabilities.

Patching and Updates

Microsoft has likely released patches to address this vulnerability. Ensure all affected versions are updated accordingly.