CVE-2020-1177 : Vulnerability Insights and Analysis

Microsoft SharePoint Server XSS Vulnerability

Understanding CVE-2020-1177

A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint Server leading to spoofing attacks.

What is CVE-2020-1177?

This CVE involves a lack of proper sanitization of web requests in Microsoft SharePoint Server, enabling a specially crafted request to exploit the system.

The Impact of CVE-2020-1177

Successful exploitation could lead to spoofing attacks on affected SharePoint servers.

Technical Details of CVE-2020-1177

Vulnerability Description

The vulnerability allows malicious actors to execute cross-site scripting attacks leveraging crafted web requests.

Affected Systems and Versions

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

Exploitation Mechanism

Attackers can send a specifically designed web request to the SharePoint server to execute the XSS attack.

Mitigation and Prevention

Immediate Steps to Take

Apply the security update provided by Microsoft to mitigate the vulnerability.
Ensure that all systems running the affected versions are patched promptly.

Long-Term Security Practices

Regularly monitor and update security configurations on SharePoint servers.
Educate users on safe web browsing practices to minimize the risk of XSS attacks.
Implement network security measures to detect and prevent malicious web requests.

Patching and Updates

Follow Microsoft's security guidance to install the necessary patches and updates for the SharePoint servers.