CVE-2020-1198 : Security Advisory and Response
Learn about CVE-2020-1198, a Cross-Site Scripting vulnerability in Microsoft SharePoint, enabling attackers to compromise system security and execute malicious scripts. Take immediate steps to secure systems.
This CVE-2020-1198 article provides insights into a Cross-Site Scripting (XSS) vulnerability in Microsoft Office SharePoint.
Understanding CVE-2020-1198
What is CVE-2020-1198?
A Cross-Site Scripting vulnerability in Microsoft SharePoint Server allows attackers to execute malicious scripts in the context of the current user, potentially compromising system security.
The Impact of CVE-2020-1198
The vulnerability could enable attackers to read unauthorized content, manipulate user actions, and inject malicious scripts into the victim's browser.
Technical Details of CVE-2020-1198
Vulnerability Description
The XSS vulnerability arises due to improper sanitization of web requests, enabling attackers to exploit the system.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016 (Version 16.0.0)
- Microsoft SharePoint Enterprise Server 2013 SP1 (Version 15.0.0)
- Microsoft SharePoint Server 2019 (Version 16.0.0)
- Microsoft SharePoint Foundation 2013 SP1 (Version 15.0.0)
- Platforms: x64-based Systems
Exploitation Mechanism
Attackers, once authenticated, can exploit the vulnerability by sending specially crafted requests to affected SharePoint servers.
Mitigation and Prevention
Immediate Steps to Take
- Ensure all SharePoint servers are updated with the latest security patches.
- Implement strong access controls and user permissions to limit unauthorized activities.
Long-Term Security Practices
- Regularly monitor and audit SharePoint server logs for any suspicious activities.
- Educate users on phishing tactics and safe browsing practices to prevent XSS attacks.
Patching and Updates
Apply security updates from Microsoft to ensure that SharePoint Server properly sanitizes web requests.