CVE-2023-4591 Explained : Impact and Mitigation

This CVE-2023-4591, assigned by INCIBE, was published on November 3, 2023. It involves a local file inclusion vulnerability found in WPN-XM Serverstack version 0.8.6, potentially allowing unauthenticated users to perform a critical webshell exploit.

Understanding CVE-2023-4591

This vulnerability in WPN-XM Serverstack version 0.8.6 poses a significant risk as it enables attackers to include files from the server without proper authentication, potentially leading to the execution of malicious code.

What is CVE-2023-4591?

The CVE-2023-4591 vulnerability is categorized as a local file inclusion flaw. It specifically affects version 0.8.6 of WPN-XM Serverstack. Attackers can exploit this vulnerability by sending a GET request to the /tools/webinterface/index.php?page parameter, allowing them to load PHP files on the server and execute webshell exploits.

The Impact of CVE-2023-4591

The impact of CVE-2023-4591, as classified by CAPEC-549, is related to the local execution of code. This vulnerability can result in a high confidentiality impact, potentially compromising sensitive information stored on the server.

Technical Details of CVE-2023-4591

This section delves into the technical aspects of CVE-2023-4591, providing insights into the vulnerability's description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability allows an unauthenticated user to carry out a local file inclusion attack via the /tools/webinterface/index.php?page parameter, leading to the execution of PHP files on the server and enabling critical webshell exploits.

Affected Systems and Versions

The CVE-2023-4591 vulnerability specifically impacts version 0.8.6 of WPN-XM Serverstack. Systems running this version are at risk of exploitation by malicious actors seeking to execute unauthorized code on the server.

Exploitation Mechanism

By sending a crafted GET request to the vulnerable parameter /tools/webinterface/index.php?page, attackers can leverage the vulnerability to include PHP files on the server, ultimately executing webshell exploits and gaining unauthorized access to the system.

Mitigation and Prevention

To address the risks associated with CVE-2023-4591, immediate steps should be taken to secure affected systems and implement long-term security practices to prevent similar vulnerabilities in the future.

Immediate Steps to Take

Organizations using WPN-XM Serverstack version 0.8.6 should consider implementing security measures to mitigate the risk posed by the local file inclusion vulnerability.
Monitoring server logs for suspicious activities and unauthorized access attempts can help detect and prevent potential exploitation of the vulnerability.

Long-Term Security Practices

Regular security assessments and audits should be conducted to identify and address vulnerabilities in software applications and systems.
Educating users and administrators about secure coding practices and the risks associated with file inclusion vulnerabilities can help strengthen overall cybersecurity posture.

Patching and Updates

It is recommended to stay informed about security updates and patches released by the software vendor to address vulnerabilities promptly.
Implementing software updates and patches in a timely manner can help close security gaps and protect systems from known threats.

Please note that as of the publication of this CVE, there is no reported solution available. Organizations are advised to closely monitor official sources for any updates regarding a patch or fix for CVE-2023-4591.