CVE-2020-0930 : What You Need to Know

Microsoft SharePoint servers are affected by a cross-site-scripting (XSS) vulnerability that could allow spoofing attacks.

Understanding CVE-2020-0930

A XSS vulnerability in Microsoft SharePoint servers that could be exploited for spoofing attacks.

What is CVE-2020-0930?

A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint Server enables specially crafted web requests, leading to possible spoofing.

The Impact of CVE-2020-0930

Attackers could spoof content, conduct phishing attacks, or execute malicious scripts on SharePoint servers.

Technical Details of CVE-2020-0930

This section covers a detailed analysis of the vulnerability.

Vulnerability Description

XSS vulnerability in Microsoft SharePoint Server due to inadequate sanitization of web requests, also known as 'Microsoft Office SharePoint XSS Vulnerability'.

Affected Systems and Versions

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

Exploitation Mechanism

Specially crafted web requests exploit the XSS vulnerability, allowing attackers to inject and execute malicious scripts.

Mitigation and Prevention

Protect your systems against CVE-2020-0930.

Immediate Steps to Take

Apply security patches and updates provided by Microsoft promptly.
Monitor and restrict untrusted payloads and user inputs on SharePoint servers.

Long-Term Security Practices

Implement strict input validation mechanisms on web forms and requests.
Regularly assess and audit the security configurations of SharePoint servers.

Patching and Updates

Stay informed about security advisories and updates from Microsoft regarding CVE-2020-0930 to apply necessary patches.