CVE-2022-21808 : Security Advisory and Response

A path traversal vulnerability has been identified in Yokogawa Electric Corporation's products, potentially impacting systems running specific versions of CENTUM CS 3000, CENTUM VP, and Exaopc.

Understanding CVE-2022-21808

This CVE discloses a critical security flaw that enables unauthorized users to traverse directories in certain Yokogawa Electric products, posing a significant security risk.

What is CVE-2022-21808?

The vulnerability is related to a path traversal issue in CAMS for HIS Server, affecting versions of CENTUM CS 3000, CENTUM VP, and Exaopc within specified version ranges.

The Impact of CVE-2022-21808

Exploitation of this vulnerability can lead to unauthorized access to sensitive files and data, potentially compromising the integrity and confidentiality of affected systems.

Technical Details of CVE-2022-21808

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

Vulnerability Description

The path traversal flaw in CAMS for HIS Server allows threat actors to maneuver through file directories beyond the intended boundaries, potentially accessing and modifying critical files.

Affected Systems and Versions

The affected products include CENTUM CS 3000 versions from R3.08.10 to R3.09.00, CENTUM VP versions from R4.01.00 to R4.03.00, from R5.01.00 to R5.04.20, and from R6.01.00 to R6.08.00, as well as Exaopc versions from R3.72.00 to R3.79.00.

Exploitation Mechanism

Threat actors can exploit this vulnerability by submitting crafted requests to the vulnerable server, allowing them to navigate directories and potentially execute unauthorized actions.

Mitigation and Prevention

Learn how to protect your systems from this vulnerability and reduce the associated risks.

Immediate Steps to Take

It is crucial to apply security patches provided by Yokogawa Electric Corporation promptly to mitigate the vulnerability. Additionally, restrict network access to vulnerable systems and monitor for any suspicious activities.

Long-Term Security Practices

Implement robust network security measures, conduct regular security assessments, and keep systems up to date with the latest security patches to prevent similar vulnerabilities in the future.

Patching and Updates

Regularly check for security updates and patches released by the vendor to address known vulnerabilities and enhance the overall security posture of your systems.