CVE-2020-0926 Explained : Impact and Mitigation
Learn about CVE-2020-0926, a cross-site-scripting vulnerability in Microsoft SharePoint servers that can lead to spoofing attacks. Find out how to mitigate and prevent exploitation.
Microsoft SharePoint Server XSS Vulnerability
Understanding CVE-2020-0926
A cross-site-scripting (XSS) vulnerability in Microsoft SharePoint servers can lead to spoofing attacks.
What is CVE-2020-0926?
This CVE ID refers to a cross-site-scripting vulnerability in Microsoft SharePoint servers, allowing specially crafted web requests to bypass proper sanitation.
The Impact of CVE-2020-0926
The vulnerability could be exploited by attackers to execute spoofing attacks on affected SharePoint servers.
Technical Details of CVE-2020-0926
Vulnerability Description
The XSS flaw arises due to inadequate sanitization of specific web requests, enabling malicious actors to inject script content.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1
- Microsoft SharePoint Server 2019
Exploitation Mechanism
Malicious actors can exploit this vulnerability by sending specially crafted web requests to the vulnerable SharePoint servers.
Mitigation and Prevention
Immediate Steps to Take
- Apply the latest security updates from Microsoft.
- Implement proper input validation mechanisms to prevent XSS attacks.
Long-Term Security Practices
- Regularly monitor and audit SharePoint server logs for any suspicious activities.
- Train users on identifying and reporting suspicious emails or web content.
Patching and Updates
- Keep all SharePoint servers up to date with the latest security patches to address this XSS vulnerability.