CVE-2023-31162 : Vulnerability Insights and Analysis

An Improper Input Validation vulnerability has been identified in the Schweitzer Engineering Laboratories Real-Time Automation Controller (SEL RTAC) Web Interface, potentially allowing a remote authenticated attacker to modify the contents of a configuration file. This vulnerability has a CVSS base score of 4.8, indicating a medium severity issue.

Understanding CVE-2023-31162

The vulnerability in the SEL RTAC Web Interface could lead to configuration/environment manipulation and DNS rebinding attacks.

What is CVE-2023-31162?

CVE-2023-31162 is an Improper Input Validation vulnerability in the SEL RTAC Web Interface. It enables a remote authenticated attacker to maliciously alter configuration file content, posing a security risk to the system.

The Impact of CVE-2023-31162

The vulnerability's impact includes allowing attackers to manipulate the environment and carry out DNS rebinding attacks, potentially compromising the integrity of the system.

Technical Details of CVE-2023-31162

The vulnerability is classified under CWE-20: Improper Input Validation. It has a CVSS v3.1 base score of 4.8, presenting a medium severity threat with low attack complexity and network-based attack vector.

Vulnerability Description

The issue stems from improper input validation in the SEL RTAC Web Interface, enabling authenticated remote attackers to modify configuration file contents.

Affected Systems and Versions

The vulnerability affects various products of Schweitzer Engineering Laboratories running versions less than R150-V2 and R149-V4, including SEL-3505, SEL-3530, SEL-3555, and more.

Exploitation Mechanism

Attackers with high privileges can exploit this vulnerability through the web management interface to manipulate configuration files, compromising the system's integrity.

Mitigation and Prevention

To address CVE-2023-31162, immediate steps should be taken along with the adoption of long-term security practices and timely application of patches and updates.

Immediate Steps to Take

Review SEL Service Bulletin dated 2022-11-15 for detailed information on the vulnerability and potential mitigation strategies.
Monitor system logs and network traffic for any suspicious activities to detect potential exploitation attempts.

Long-Term Security Practices

Implement strong authentication mechanisms and access controls to limit unauthorized access to critical system components.
Regularly audit and update configurations to address security gaps and enhance system resilience.

Patching and Updates

Apply relevant security patches provided by Schweitzer Engineering Laboratories to remediate the vulnerability. Stay informed about security updates to protect against emerging threats.