CVE-2021-22806 Explained : Impact and Mitigation

This article provides details about CVE-2021-22806, a vulnerability found in spaceLYnk, Wiser for KNX, and fellerLYnk products from Schneider Electric.

Understanding CVE-2021-22806

This section dives into what CVE-2021-22806 entails, its impact, technical details, and mitigation strategies.

What is CVE-2021-22806?

CVE-2021-22806 is a CWE-669 vulnerability that allows incorrect resource transfer between spheres, leading to data exfiltration and unauthorized access when interacting with a malicious website.

The Impact of CVE-2021-22806

The vulnerability could result in severe consequences, such as data leaks and unauthorized access, posing a significant risk to the affected systems.

Technical Details of CVE-2021-22806

Let's explore the specifics of CVE-2021-22806 related to the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The CWE-669 vulnerability allows threat actors to transfer resources incorrectly between different spheres, enabling data exfiltration and unauthorized access through malicious websites.

Affected Systems and Versions

The vulnerability impacts spaceLYnk (V2.6.1 and prior), Wiser for KNX (V2.6.1 and prior), and fellerLYnk (V2.6.1 and prior) products from Schneider Electric.

Exploitation Mechanism

By exploiting this vulnerability, attackers can exfiltrate data and gain unauthorized access by leveraging the incorrect resource transfer between spheres.

Mitigation and Prevention

This section outlines the steps to take immediately after discovering the CVE, as well as long-term security practices and the importance of patching and updates.

Immediate Steps to Take

Immediately apply security patches provided by Schneider Electric to remediate the CVE-2021-22806 vulnerability and prevent potential exploitation.

Long-Term Security Practices

Incorporate robust security measures, such as regular security assessments, network segmentation, and employee training, to enhance overall cybersecurity posture.

Patching and Updates

Stay vigilant for security updates from Schneider Electric and promptly install patches to address vulnerabilities, ensuring the protection of your systems and data.