CVE-2023-25654 : Exploit Details and Defense Strategies

This CVE record describes a critical vulnerability in baserCMS, a Content Management System, with the identifier CVE-2023-25654.

Understanding CVE-2023-25654

This vulnerability in baserCMS is categorized as a Remote Code Execution (RCE) Vulnerability that affects versions prior to 4.7.5. It has been assigned a CVSS v3.1 base score of 9.8, indicating a critical severity level.

What is CVE-2023-25654?

baserCMS, a Content Management System, was found to have an RCE vulnerability in its management system before version 4.7.5. This vulnerability allows attackers to execute arbitrary code on the affected system, potentially leading to unauthorized access, data breach, and other malicious activities.

The Impact of CVE-2023-25654

The impact of this vulnerability is significant, with high confidentiality, integrity, and availability impacts. Attackers can exploit this flaw remotely without requiring any privileges, making it a critical security concern for organizations using baserCMS versions prior to 4.7.5.

Technical Details of CVE-2023-25654

This section delves into the specific details of the vulnerability, affected systems, and exploitation mechanisms.

Vulnerability Description

The baserCMS vulnerability, tracked as CVE-2023-25654, is classified as an Unrestricted Upload of File with Dangerous Type (CWE-434). This flaw allows for the unauthorized execution of arbitrary code on the target system.

Affected Systems and Versions

The versions of baserCMS that are impacted by this vulnerability are those earlier than version 4.7.5. Specifically, versions lower than 4.7.4 are susceptible to this Remote Code Execution flaw.

Exploitation Mechanism

Attackers can exploit this vulnerability by uploading malicious files through the baserCMS file uploader, leveraging the lack of restrictions on file types. Once uploaded, these files can be executed to gain unauthorized access and control over the system.

Mitigation and Prevention

To protect systems from CVE-2023-25654 and mitigate the associated risks, it is crucial to take immediate action and implement long-term security practices.

Immediate Steps to Take

Organizations using baserCMS should immediately update to version 4.7.5 or later, as this release contains a patch that addresses the RCE vulnerability. It is also recommended to restrict file uploads and thoroughly scan existing files for any malicious content.

Long-Term Security Practices

In the long term, organizations should prioritize regular security audits, implement secure coding practices, and keep software and systems up to date with the latest security patches. Employee training on recognizing and reporting potential security threats is also essential in maintaining a secure environment.

Patching and Updates

Users of baserCMS should regularly check for updates and patches released by the vendor to address known vulnerabilities. Staying informed about security advisories and promptly applying patches can bolster the overall security posture of the system and mitigate the risks associated with CVE-2023-25654.