CVE-2020-0894 : Exploit Details and Defense Strategies
Learn about CVE-2020-0894, a cross-site scripting vulnerability in Microsoft SharePoint Server. Find out affected versions, impacts, and mitigation steps.
Microsoft SharePoint Server XSS Vulnerability
Understanding CVE-2020-0894
A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint servers.
What is CVE-2020-0894?
This vulnerability arises when Microsoft SharePoint Server fails to properly sanitize specific web requests, leading to a cross-site scripting issue.
The Impact of CVE-2020-0894
The vulnerability allows attackers to execute malicious scripts in the context of the user's session.
Technical Details of CVE-2020-0894
Affected Products:
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Server 2019
- Microsoft SharePoint Foundation 2010 Service Pack 2, 2013 Service Pack 1
Vulnerability Description
- Type: Cross-site scripting (XSS)
- Name: Microsoft Office SharePoint XSS Vulnerability
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Server 2019
- Microsoft SharePoint Foundation 2010 Service Pack 2, 2013 Service Pack 1
Exploitation Mechanism
The vulnerability is exploited by sending a specially crafted web request to the targeted SharePoint server.
Mitigation and Prevention
Immediate Steps to Take
- Apply security updates provided by Microsoft
- Implement web application firewalls
- Regularly monitor and audit SharePoint servers
Long-Term Security Practices
- Conduct frequent security training for users
- Employ secure coding practices
Patching and Updates
- Regularly check for and apply security patches released by Microsoft