CVE-2023-45878 : Security Advisory and Response

A critical vulnerability in GibbonEdu Gibbon version 25.0.1 and earlier allows Arbitrary File Write, leading to the potential of Remote Code Execution without authentication.

Understanding CVE-2023-45878

This section provides insight into the impact, technical details, and mitigation strategies related to CVE-2023-45878.

What is CVE-2023-45878?

The vulnerability in GibbonEdu Gibbon version 25.0.1 and below enables attackers to write files arbitrarily, facilitating the execution of unauthorized remote code.

The Impact of CVE-2023-45878

Exploitation of this vulnerability can result in unauthorized access to sensitive data, compromising the integrity and confidentiality of the affected system.

Technical Details of CVE-2023-45878

Below are specific technical aspects of the CVE-2023-45878 vulnerability.

Vulnerability Description

The issue arises from rubrics_visualise_saveAjax.phps, which lacks authentication, allowing the execution of base64 decoded remote PHP files.

Affected Systems and Versions

All instances of GibbonEdu Gibbon version 25.0.1 and earlier are vulnerable to this arbitrary file write flaw.

Exploitation Mechanism

Attackers exploit the endpoint by providing the img, path, and gibbonPersonID parameters without authentication to execute malicious scripts remotely.

Mitigation and Prevention

Protect your systems from CVE-2023-45878 with the following practices.

Immediate Steps to Take

Update GibbonEdu Gibbon to the latest version to patch the vulnerability.
Implement strict access controls and authentication mechanisms to restrict unauthorized file writes.
Regularly monitor for any unusual file activity on the server.

Long-Term Security Practices

Conduct regular security audits and penetration testing to identify and remediate vulnerabilities proactively.
Educate users on secure coding practices and potential threats like remote code execution.

Patching and Updates

Stay informed about security updates from GibbonEdu and promptly apply patches to ensure ongoing protection against known vulnerabilities.