CVE-2023-4202 : Vulnerability Insights and Analysis

This CVE-2023-4202 was published by CyberDanube on August 8, 2023, and involves a Stored Cross-Site Scripting vulnerability affecting Advantech EKI-1524, EKI-1522, and EKI-1521 devices up to version 1.21. Authenticated users can trigger this vulnerability in the device name field of the web-interface.

Understanding CVE-2023-4202

This section will delve into the specifics of CVE-2023-4202, its impact, technical details, and mitigation strategies.

What is CVE-2023-4202?

CVE-2023-4202 refers to a Stored Cross-Site Scripting vulnerability impacting certain Advantech devices. This vulnerability enables authenticated users to inject malicious scripts into the device name field of the web-interface.

The Impact of CVE-2023-4202

The impact of this vulnerability is categorized as critical with a CVSS v3.1 base score of 9.0. It has high severity ratings across various impact aspects like confidentiality, integrity, and availability. The vulnerability falls under CAPEC-63 - Cross-Site Scripting (XSS).

Technical Details of CVE-2023-4202

Let's explore the technical aspects of CVE-2023-4202, including vulnerability description, affected systems, versions, and exploitation mechanism.

Vulnerability Description

The vulnerability allows authenticated users to execute malicious scripts in the device name field of the web-interface of Advantech EKI-1524, EKI-1522, and EKI-1521 devices up to version 1.21.

Affected Systems and Versions

Advantech EKI-1524, EKI-1522, and EKI-1521 devices up to version 1.21 are affected by this vulnerability.

Exploitation Mechanism

Authenticated users can exploit this vulnerability by inserting malicious scripts into the device name field of the web-interface, leading to potential XSS attacks.

Mitigation and Prevention

Taking immediate steps to address CVE-2023-4202 is crucial to ensure the security of affected systems and prevent potential exploitation.

Immediate Steps to Take

Disable or restrict access to the affected device name field on Advantech EKI-1524, EKI-1522, and EKI-1521 devices.
Implement tight authentication controls to minimize the risk of unauthorized access and script injection.

Long-Term Security Practices

Regularly monitor for security updates and patches from Advantech to address known vulnerabilities promptly.
Conduct routine security assessments and penetration testing to identify and mitigate potential risks proactively.

Patching and Updates

Stay informed about security advisories and updates from Advantech regarding CVE-2023-4202. Apply patches and firmware updates provided by the vendor to remediate the vulnerability and enhance system security.