CVE-2022-21177 : Vulnerability Insights and Analysis

This article provides details about CVE-2022-21177, a path traversal vulnerability affecting Yokogawa Electric Corporation products.

Understanding CVE-2022-21177

CVE-2022-21177 is a path traversal vulnerability found in CAMS for HIS Log Server, impacting several products by Yokogawa Electric Corporation.

What is CVE-2022-21177?

The vulnerability exists in CENTUM CS 3000 versions from R3.08.10 to R3.09.00, CENTUM VP versions from R4.01.00 to R4.03.00, R5.01.00 to R5.04.20, and R6.01.00 to R6.08.00, and Exaopc versions from R3.72.00 to R3.79.00.

The Impact of CVE-2022-21177

This vulnerability could allow an attacker to traverse directories outside the intended path, potentially leading to unauthorized access to sensitive information or system compromise.

Technical Details of CVE-2022-21177

The following technical aspects are important to note:

Vulnerability Description

CVE-2022-21177 involves a path traversal issue in CAMS for HIS Log Server within Yokogawa Electric products.

Affected Systems and Versions

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 R6.01.00 to R6.08.00
Exaopc: versions from R3.72.00 to R3.79.00

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating file paths to access files or directories they should not have permission to access.

Mitigation and Prevention

Below are some crucial steps to mitigate the risk posed by CVE-2022-21177:

Immediate Steps to Take

Implement the official patch provided by Yokogawa Electric Corporation.
Restrict network access to vulnerable systems.

Long-Term Security Practices

Regularly update and patch software and firmware.
Conduct security assessments and penetration testing.

Patching and Updates

Stay informed about security updates from the vendor and apply them promptly to safeguard the systems from potential exploits.