CVE-2019-11828 : Security Advisory and Response

A vulnerability in Synology Office prior to version 3.1.4-2771 allows authenticated remote users to inject malicious web scripts or HTML, posing a medium severity risk.

Understanding CVE-2019-11828

This CVE involves a cross-site scripting (XSS) vulnerability in Synology Office.

What is CVE-2019-11828?

CVE-2019-11828 is a security flaw in Synology Office that enables authenticated remote users to inject malicious web scripts or HTML through unspecified vectors.

The Impact of CVE-2019-11828

The vulnerability has a CVSS base score of 5.5, indicating a medium severity issue. It affects confidentiality, integrity, and availability to a certain extent.

Technical Details of CVE-2019-11828

This section delves into the specifics of the vulnerability.

Vulnerability Description

The flaw allows remote authenticated users to inject arbitrary web script or HTML via the Chart feature in Synology Office.

Affected Systems and Versions

Product: Office
Vendor: Synology
Versions Affected: Prior to 3.1.4-2771

Exploitation Mechanism

Attack Complexity: High
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Scope: Changed

Mitigation and Prevention

Protecting systems from CVE-2019-11828 is crucial for maintaining security.

Immediate Steps to Take

Update Synology Office to version 3.1.4-2771 or later.
Monitor for any unauthorized script injections.

Long-Term Security Practices

Educate users on safe browsing practices.
Implement web application firewalls to detect and block XSS attacks.

Patching and Updates

Regularly apply security patches and updates to all software components.