CVE-2023-25828 : Security Advisory and Response

This CVE-2023-25828 pertains to an authenticated remote code execution vulnerability found in Pluck CMS. The vulnerability allows attackers to execute malicious code on the underlying web server by exploiting the "albums" module in the CMS. This poses a significant risk to the security of websites using this version of Pluck CMS.

Understanding CVE-2023-25828

In this section, we will dive deeper into the details of CVE-2023-25828.

What is CVE-2023-25828?

Pluck CMS is susceptible to an authenticated remote code execution vulnerability through its "albums" module. Attackers can leverage this vulnerability to upload a crafted JPEG payload containing an embedded PHP web-shell, leading to unauthorized code execution on the web server. Exploiting this flaw requires administrator credentials for the Pluck CMS web interface.

The Impact of CVE-2023-25828

The impact of this vulnerability is significant, with a CVSS v3.1 score of 8.2 (High). This means that successful exploitation can result in compromise of confidentiality, integrity, and availability of the affected system, posing a serious threat to the security of web applications utilizing Pluck CMS.

Technical Details of CVE-2023-25828

Here we will explore the technical aspects of CVE-2023-25828 in depth.

Vulnerability Description

The vulnerability arises due to a lack of file extension validation in the "albums" module of Pluck CMS. This oversight allows for the upload of malicious files disguised as JPEGs, ultimately enabling attackers to achieve remote code execution on the web server.

Affected Systems and Versions

The vulnerability affects Pluck CMS versions up to 4.7.16-dev4. Websites utilizing these versions are at risk of exploitation through the authenticated remote code execution vulnerability in the "albums" module.

Exploitation Mechanism

Exploiting this vulnerability requires access to administrator credentials for the Pluck CMS web interface. Attackers can upload a specifically crafted file disguised as a JPEG to trigger the remote code execution and compromise the web server.

Mitigation and Prevention

In this section, we will discuss measures to mitigate and prevent the exploitation of CVE-2023-25828.

Immediate Steps to Take

Website administrators should ensure that all user inputs, especially file uploads, undergo thorough validation to prevent the upload of malicious content. It is crucial to restrict access to sensitive features like the "albums" module to authorized personnel only.

Long-Term Security Practices

Implementing secure coding practices and conducting regular security audits can help identify and remediate vulnerabilities in the CMS. Additionally, educating users on safe browsing habits and the importance of cybersecurity hygiene can bolster the overall security posture of the website.

Patching and Updates

Users of Pluck CMS are advised to update to a patched version that addresses the authenticated remote code execution vulnerability. Keeping the CMS and its components up to date with the latest security patches is crucial in safeguarding against known vulnerabilities.