CVE-2021-26565 : What You Need to Know

A vulnerability has been identified in Synology DiskStation Manager (DSM) that allows man-in-the-middle attackers to intercept sensitive information. Here's what you need to know about CVE-2021-26565.

Understanding CVE-2021-26565

This section delves into the specifics of the CVE-2021-26565 vulnerability.

What is CVE-2021-26565?

The CVE-2021-26565 vulnerability involves cleartext transmission of sensitive information in synorelayd in Synology DiskStation Manager (DSM) before version 6.2.3-25426-3, enabling attackers to capture sensitive data during an HTTP session.

The Impact of CVE-2021-26565

The impact of this vulnerability is rated as HIGH, with a base score of 8.3. It poses risks to confidentiality, integrity, and availability of sensitive information within affected systems.

Technical Details of CVE-2021-26565

This section provides technical insights into CVE-2021-26565.

Vulnerability Description

The vulnerability arises from cleartext transmission of data in synorelayd in Synology DiskStation Manager (DSM) before version 6.2.3-25426-3, leaving sensitive information exposed to man-in-the-middle attacks.

Affected Systems and Versions

Synology DiskStation Manager (DSM) versions prior to 6.2.3-25426-3 are affected by this vulnerability.

Exploitation Mechanism

Man-in-the-middle attackers can exploit this vulnerability to intercept sensitive information transmitted via HTTP sessions.

Mitigation and Prevention

This section outlines mitigation strategies and best practices for addressing CVE-2021-26565.

Immediate Steps to Take

Users are advised to update Synology DiskStation Manager (DSM) to version 6.2.3-25426-3 or later to mitigate the risk of exploitation.

Long-Term Security Practices

Implementing secure communication protocols and conducting regular security audits can enhance protection against similar vulnerabilities.

Patching and Updates

Regularly applying security patches released by Synology can help fortify systems against potential exploits.