CVE-2017-11777 : Vulnerability Insights and Analysis

Microsoft SharePoint Enterprise Server 2013 SP1 and 2016 are vulnerable to a cross-site scripting (XSS) flaw, allowing attackers to exploit the system.

Understanding CVE-2017-11777

This CVE ID refers to a specific vulnerability in Microsoft SharePoint Enterprise Server versions 2013 SP1 and 2016.

What is CVE-2017-11777?

An attacker can exploit a cross-site scripting (XSS) vulnerability by sending a crafted request to an affected SharePoint server.
The vulnerability is known as "Microsoft Office SharePoint XSS Vulnerability" and is distinct from other CVE IDs.

The Impact of CVE-2017-11777

Attackers can potentially execute malicious scripts in the context of the user's session, leading to unauthorized actions.

Technical Details of CVE-2017-11777

Microsoft SharePoint Enterprise Server is susceptible to XSS attacks due to improper handling of web requests.

Vulnerability Description

The flaw allows attackers to inject malicious scripts into web pages viewed by users.

Affected Systems and Versions

Microsoft SharePoint Enterprise Server 2013 SP1
Microsoft SharePoint Enterprise Server 2016

Exploitation Mechanism

Attackers exploit the vulnerability by sending specially crafted requests to vulnerable SharePoint servers.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigate the risk posed by CVE-2017-11777.

Immediate Steps to Take

Apply security patches provided by Microsoft promptly.
Monitor and restrict network traffic to SharePoint servers.
Educate users about the risks of clicking on suspicious links or downloading files.

Long-Term Security Practices

Regularly update and patch SharePoint servers to address security vulnerabilities.
Implement content security policies to mitigate XSS risks.

Patching and Updates

Regularly check for security updates and patches released by Microsoft for SharePoint Enterprise Server.