CVE-2020-1323 : Security Advisory and Response
Learn about CVE-2020-1323 affecting Microsoft SharePoint with an open redirect vulnerability allowing for URL spoofing. Find mitigation steps and patching information here.
An open redirect vulnerability exists in Microsoft SharePoint that could lead to spoofing by exploiting specially crafted URLs.
Understanding CVE-2020-1323
What is CVE-2020-1323?
An open redirect vulnerability in Microsoft SharePoint could allow attackers to spoof URLs, leading to potential security breaches when users click on malicious links.
The Impact of CVE-2020-1323
This vulnerability known as 'SharePoint Open Redirect Vulnerability' can result in spoofing attacks, where attackers deceive users into visiting fraudulent websites.
Technical Details of CVE-2020-1323
Vulnerability Description
An open redirect flaw in Microsoft SharePoint enables attackers to craft URLs that redirect users to malicious sites, potentially leading to spoofing.
Affected Systems and Versions
- Microsoft SharePoint Enterprise Server 2016
- Microsoft SharePoint Server 2019
- Microsoft SharePoint Foundation 2013 Service Pack 1
Exploitation Mechanism
Attackers exploit this vulnerability by sending victims URLs with specially crafted redirects, tricking them into clicking and being redirected to malicious websites.
Mitigation and Prevention
Immediate Steps to Take
- Ensure users are educated to avoid clicking on suspicious links
- Implement URL filtering mechanisms to detect and block malicious redirects
Long-Term Security Practices
- Regular security awareness training for employees
- Keep systems and software up to date with the latest patches
- Employ web filtering and security solutions to prevent open redirect vulnerabilities
Patching and Updates
Apply Microsoft's recommended security updates to fix the open redirect vulnerability in SharePoint.