CVE-2023-1935 : What You Need to Know

An overview of the authentication bypass vulnerability affecting ROC800-Series RTU devices, which could potentially lead to unauthorized access and denial-of-service attacks.

Understanding CVE-2023-1935

This section delves into the specifics of CVE-2023-1935, shedding light on its implications and impact within the affected systems.

What is CVE-2023-1935?

CVE-2023-1935 pertains to an authentication bypass vulnerability present in ROC800-Series RTU devices. This flaw can be exploited by threat actors to gain unauthorized access to sensitive data or take control of the device, ultimately leading to a denial-of-service scenario.

The Impact of CVE-2023-1935

The critical nature of this vulnerability is reflected in its potential impact on affected systems. With the ability to circumvent authentication measures, malicious actors could compromise the integrity and availability of ROC800-Series RTU devices, posing a significant risk to operational security.

Technical Details of CVE-2023-1935

This section provides a deeper dive into the technical aspects of CVE-2023-1935, including vulnerability description, affected systems, and exploitation mechanisms.

Vulnerability Description

The vulnerability allows threat actors to bypass authentication protocols on ROC800-Series RTU devices, enabling unauthorized access to critical data and device control, leading to potential denial-of-service attacks.

Affected Systems and Versions

The following Emerson Electric products are impacted by CVE-2023-1935:

DL8000 (All versions)
ROC827 (All versions)
ROC809L (All versions)
ROC827 (All versions)
ROC809 (All versions)

Exploitation Mechanism

The authentication bypass vulnerability in ROC800-Series RTU devices can be exploited remotely, leveraging network-based attack vectors with low complexity and no prior privileges required. The exploit could result in high integrity and availability impacts, emphasizing the critical severity of this issue.

Mitigation and Prevention

This section outlines crucial steps to mitigate the risks associated with CVE-2023-1935 and prevent potential attacks against vulnerable systems.

Immediate Steps to Take

Immediate actions include restricting network access to vulnerable devices, implementing strong authentication mechanisms, and monitoring network traffic for any suspicious activity or unauthorized access attempts.

Long-Term Security Practices

Establishing robust network security policies, conducting regular security assessments, and ensuring timely security updates and patches for affected devices are essential for long-term security resilience against similar vulnerabilities.

Patching and Updates

It is imperative for organizations using ROC800-Series RTU devices to promptly apply patches and updates provided by Emerson Electric to address the authentication bypass vulnerability and enhance the overall security posture of the affected systems.