CVE-2022-4098 : Security Advisory and Response

A detailed overview of CVE-2022-4098 affecting multiple products from Wiesemann & Theis due to an authentication bypass vulnerability.

Understanding CVE-2022-4098

This CVE involves an authentication bypass vulnerability in multiple products of the Com-Server Series by Wiesemann & Theis.

What is CVE-2022-4098?

Multiple products from Wiesemann & Theis, specifically the ComServer Series, are susceptible to an authentication bypass through IP spoofing. This vulnerability allows an unauthenticated attacker on the same subnet to manipulate settings and potentially take over the device.

The Impact of CVE-2022-4098

The impact of this vulnerability, identified as CAPEC-151 Identity Spoofing, is classified as high severity due to its potential to lead to a complete device takeover. The affected products include various versions of Com-Server devices by Wiesemann & Theis.

Technical Details of CVE-2022-4098

This section delves into the specifics of the vulnerability, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability enables an unauthenticated attacker in the same subnet to obtain the session ID of a logged-in user and change device settings via crafted HTTP Get requests, potentially leading to full device control.

Affected Systems and Versions

Products affected include various Com-Server devices by Wiesemann & Theis with versions less than 1.78 or 1.55, depending on the specific product.

Exploitation Mechanism

The exploitation involves IP spoofing to bypass authentication and manipulate settings through modified HTTP Get requests.

Mitigation and Prevention

Explore the necessary steps to address and prevent exploitation of CVE-2022-4098.

Immediate Steps to Take

Immediately update affected Wiesemann & Theis Com-Server devices to versions that contain patches for the authentication bypass vulnerability.

Long-Term Security Practices

Implement network segmentation, access controls, and regular security audits to prevent unauthorized access to devices.

Patching and Updates

Regularly monitor for security updates and patches from Wiesemann & Theis for the affected Com-Server devices to maintain a secure environment.