CVE-2023-31409 : Exploit Details and Defense Strategies

A vulnerability has been discovered in the SICK FTMg AIR FLOW SENSOR with various part numbers, allowing a remote attacker to impact the webserver's availability through a specific type of attack.

Understanding CVE-2023-31409

This section will delve into the details of the CVE-2023-31409 vulnerability, focusing on its description, impact, affected systems, and exploitation mechanism.

What is CVE-2023-31409?

The CVE-2023-31409 vulnerability involves uncontrolled resource consumption in SICK FTMg AIR FLOW SENSOR with specific part numbers. It enables a remote attacker to influence the availability of the webserver using a Slowloris-type attack via HTTP requests.

The Impact of CVE-2023-31409

The vulnerability poses a medium-severity threat, with a CVSS v3.1 base score of 5.3. It has a low attack complexity and vector, with low availability impact. The attack does not require user interaction or privileges, maintaining the scope unchanged.

Technical Details of CVE-2023-31409

This section will cover the specific technical details related to the CVE-2023-31409 vulnerability, including the vulnerability description, affected systems, and the exploitation mechanism.

Vulnerability Description

The vulnerability allows uncontrolled resource consumption in the SICK FTMg AIR FLOW SENSOR with specific part numbers, facilitating a Slowloris-style attack via HTTP requests.

Affected Systems and Versions

Products affected include various SICK FTMG-ESD and FTMG-ESR series AIR FLOW SENSORS with all firmware versions.

Exploitation Mechanism

A remote attacker can trigger uncontrolled resource consumption by executing a Slowloris-style attack via HTTP requests, impacting the webserver's availability.

Mitigation and Prevention

In this section, we will discuss the necessary steps to mitigate and prevent exploitation of the CVE-2023-31409 vulnerability in the affected systems.

Immediate Steps to Take

Operate the SICK FTMg AIR FLOW SENSOR with caution, apply general security practices, and consider network segmentation to mitigate the associated risk.

Long-Term Security Practices

Regularly update the firmware of the affected SICK FTMG AIR FLOW SENSOR devices, follow security best practices, and stay informed about security alerts and advisories.

Patching and Updates

Keep an eye on the vendor's security advisories and promptly apply any patches or updates released to address the CVE-2023-31409 vulnerability.