CVE-2019-0963 : Security Advisory and Response

Microsoft SharePoint Server is affected by a cross-site scripting (XSS) vulnerability, known as 'Microsoft Office SharePoint XSS Vulnerability'. This vulnerability arises due to inadequate sanitization of specific web requests by the server.

Understanding CVE-2019-0963

This CVE entry describes a spoofing vulnerability in Microsoft SharePoint Server.

What is CVE-2019-0963?

A cross-site scripting (XSS) vulnerability in Microsoft SharePoint Server allows attackers to execute malicious scripts in the context of a user's browser.

The Impact of CVE-2019-0963

Attackers can potentially steal sensitive information, perform actions on behalf of users, or deface websites through injected scripts.

Technical Details of CVE-2019-0963

Microsoft SharePoint Foundation is specifically affected by this vulnerability.

Vulnerability Description

The XSS vulnerability occurs when the server fails to properly sanitize specific web requests, enabling attackers to inject malicious scripts.

Affected Systems and Versions

Product: Microsoft SharePoint Foundation
Vendor: Microsoft
Affected Version: 2013 Service Pack 1

Exploitation Mechanism

Attackers exploit this vulnerability by crafting malicious web requests that are not adequately sanitized by the server, leading to XSS attacks.

Mitigation and Prevention

It is crucial to take immediate steps to mitigate the risks posed by CVE-2019-0963.

Immediate Steps to Take

Apply security patches provided by Microsoft promptly.
Implement web application firewalls to filter and block malicious requests.
Educate users about the risks of clicking on suspicious links or visiting untrusted websites.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Conduct security assessments and penetration testing to identify and remediate XSS vulnerabilities.

Patching and Updates

Stay informed about security advisories from Microsoft and apply patches as soon as they are released.