CVE-2023-4089 : Exploit Details and Defense Strategies

This CVE, published on October 17, 2023, highlights vulnerabilities in multiple WAGO products that can be exploited by a remote attacker with administrative privileges. The issue allows unauthorized access to files through an undocumented local file inclusion, with the access being logged in an unexpected log file.

Understanding CVE-2023-4089

This vulnerability affects various WAGO products, potentially exposing sensitive information to malicious actors. Understanding the nature and impact of this CVE is crucial for ensuring system security.

What is CVE-2023-4089?

CVE-2023-4089 refers to the ability of a remote attacker with administrative privileges to access files through an undocumented local file inclusion on affected WAGO products. This unauthorized access could lead to the exposure of sensitive data.

The Impact of CVE-2023-4089

The impact of CVE-2023-4089 is significant, as it allows attackers to access files they are not authorized to view. This can result in a breach of confidentiality and potential misuse of sensitive information stored on the affected systems.

Technical Details of CVE-2023-4089

Understanding the technical aspects of this vulnerability is essential for organizations to mitigate the risks associated with it.

Vulnerability Description

The vulnerability in WAGO products enables a remote attacker to exploit an undocumented local file inclusion, gaining access to files they should not be able to view. This could lead to unauthorized data disclosure and manipulation.

Affected Systems and Versions

The vulnerability impacts various WAGO products, including Compact Controller CC100, Edge Controller, PFC100, PFC200, Touch Panel 600 Advanced Line, Touch Panel 600 Marine Line, and Touch Panel 600 Standard Line. The affected versions have firmware versions FW16 to FW19.

Exploitation Mechanism

The exploitation of CVE-2023-4089 relies on an attacker with administrative privileges exploiting the undocumented local file inclusion vulnerability present in the affected WAGO products. By leveraging this vulnerability, an attacker can access sensitive files on the system.

Mitigation and Prevention

To address CVE-2023-4089, organizations should take immediate steps to mitigate the risks and implement long-term security practices to prevent similar vulnerabilities in the future.

Immediate Steps to Take

Organizations should apply patches and updates provided by WAGO to address the vulnerability promptly. Additionally, limiting administrative privileges and monitoring file access can help mitigate the risk of exploitation.

Long-Term Security Practices

Implementing robust access controls, conducting regular security audits, and providing employee training on cybersecurity best practices can enhance overall system security and reduce the likelihood of similar vulnerabilities.

Patching and Updates

Staying informed about security updates released by WAGO for the affected products is crucial. Organizations should prioritize the timely application of patches and firmware updates to address CVE-2023-4089 and enhance system security.