CVE-2023-31161 Explained : Impact and Mitigation

An Improper Input Validation vulnerability in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface could allow an authenticated remote attacker to use internal resources, allowing a variety of potential effects. This CVE has been published on May 10, 2023, and affects multiple products of Schweitzer Engineering Laboratories.

Understanding CVE-2023-31161

This section provides detailed insights into the vulnerability and its impact.

What is CVE-2023-31161?

CVE-2023-31161 is an Improper Input Validation vulnerability in the SEL RTAC Web Interface, potentially enabling an authenticated remote attacker to exploit internal resources.

The Impact of CVE-2023-31161

The vulnerability could lead to various effects, posing risks associated with manipulation of configuration/environment, identification of shared files/directories, and potential HTTP denial-of-service attacks.

Technical Details of CVE-2023-31161

This section delves into the technical aspects of the vulnerability.

Vulnerability Description

The vulnerability arises from improper input validation in the SEL RTAC Web Interface, facilitating unauthorized access to internal resources.

Affected Systems and Versions

Multiple SEL products, including SEL-3532, SEL-3555, SEL-3560S, SEL-3560E, and SEL-3350, are impacted by this vulnerability across specific versions.

Exploitation Mechanism

An authenticated remote attacker can exploit this vulnerability through the Web management interface of affected products.

Mitigation and Prevention

Learn how to secure your systems against CVE-2023-31161.

Immediate Steps to Take

It is recommended to review and apply the SEL Service Bulletin dated 2022-11-15 for specific mitigation guidance.

Long-Term Security Practices

Implement robust security measures, such as network segmentation, access control, and regular security updates, to prevent exploitation of vulnerabilities.

Patching and Updates

Stay informed about security notifications and updates from Schweitzer Engineering Laboratories and Nozomi Networks to address vulnerabilities promptly.