CVE-2023-2573 : Security Advisory and Response

This CVE-2023-2573 affects Advantech EKI-1524, EKI-1522, EKI-1521 devices through version 1.21. Authenticated users can trigger a command injection vulnerability in the NTP server input field via a crafted POST request. The vulnerability was discovered and reported by S. Dietz and T. Weber from CyberDanube.

Understanding CVE-2023-2573

This section will delve into what CVE-2023-2573 is, its impact, technical details, and mitigation strategies.

What is CVE-2023-2573?

CVE-2023-2573 is an authenticated command injection vulnerability that affects Advantech EKI-1524, EKI-1522, EKI-1521 devices through version 1.21. The vulnerability allows authenticated users to execute commands through a crafted POST request on the NTP server input field.

The Impact of CVE-2023-2573

The impact of CVE-2023-2573 is classified as a CAPEC-88 OS Command Injection. With a CVSS v3.1 base score of 8.8 out of 10, the vulnerability poses a high risk. It can result in confidentiality, integrity, and availability impacts, making it crucial to address promptly.

Technical Details of CVE-2023-2573

This section will outline the vulnerability description, affected systems and versions, and the exploitation mechanism.

Vulnerability Description

The vulnerability in Advantech EKI-1524, EKI-1522, EKI-1521 devices through version 1.21 allows authenticated users to perform command injections via a crafted POST request in the NTP server input field.

Affected Systems and Versions

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

Exploitation Mechanism

Authenticated users can exploit the vulnerability by submitting a specially crafted POST request to the NTP server input field, leading to command injections.

Mitigation and Prevention

To address CVE-2023-2573 and enhance security, certain steps need to be taken to mitigate the risks associated with this vulnerability.

Immediate Steps to Take

Install firmware version 1.24 provided by Advantech to fix the command injection vulnerability and enhance the security of EKI-1524, EKI-1522, and EKI-1521 devices.

Long-Term Security Practices

Implementing strict access controls, conducting regular security assessments, and keeping systems up-to-date with security patches are necessary for long-term security practices.

Patching and Updates

Regularly monitor for firmware updates from the vendor and apply them promptly to ensure that known vulnerabilities like CVE-2023-2573 are mitigated effectively.