CVE-2017-16768 : Security Advisory and Response

An issue of vulnerability in the User Policy editor of Synology MailPlus Server prior to version 1.4.0-0415 has been identified, allowing remote authenticated users to insert arbitrary HTML content using the name parameter.

Understanding CVE-2017-16768

This CVE involves a cross-site scripting (XSS) vulnerability in the User Policy editor of Synology MailPlus Server.

What is CVE-2017-16768?

CVE-2017-16768 is a security vulnerability in Synology MailPlus Server that enables remote authenticated users to inject arbitrary HTML content via the name parameter.

The Impact of CVE-2017-16768

The vulnerability allows attackers to insert malicious HTML content, potentially leading to unauthorized access or other security breaches.

Technical Details of CVE-2017-16768

This section provides more technical insights into the vulnerability.

Vulnerability Description

The User Policy editor in Synology MailPlus Server before version 1.4.0-0415 is susceptible to a cross-site scripting (XSS) flaw, enabling remote authenticated users to inject arbitrary HTML content through the name parameter.

Affected Systems and Versions

Affected Product: Synology MailPlus Server
Affected Version: Prior to 1.4.0-0415

Exploitation Mechanism

Remote authenticated users can exploit this vulnerability by manipulating the name parameter to insert malicious HTML content.

Mitigation and Prevention

To address CVE-2017-16768, follow these mitigation strategies:

Immediate Steps to Take

Upgrade Synology MailPlus Server to version 1.4.0-0415 or later.
Monitor user inputs for suspicious HTML content.

Long-Term Security Practices

Conduct regular security audits and vulnerability assessments.
Educate users on safe browsing practices and the risks of XSS attacks.

Patching and Updates

Stay informed about security updates from Synology and apply patches promptly.