CVE-2023-29868 : Security Advisory and Response

A detailed analysis of CVE-2023-29868 focusing on the Incorrect Access Control vulnerability in Zammad 5.3.x.

Understanding CVE-2023-29868

This section provides insights into the vulnerability and its impact.

What is CVE-2023-29868?

CVE-2023-29868 pertains to Zammad 5.3.x (Fixed in 5.4.0) being susceptible to an Incorrect Access Control vulnerability. This flaw allows an authenticated attacker with agent and customer roles to make unauthorized changes to articles where they have only customer permissions.

The Impact of CVE-2023-29868

The vulnerability could lead to unauthorized alterations in articles by attackers with agent and customer roles, posing a risk to the integrity and confidentiality of the system.

Technical Details of CVE-2023-29868

Exploring the specific technical aspects of the vulnerability.

Vulnerability Description

The vulnerability in Zammad 5.3.x allows authenticated attackers to bypass access controls and modify articles beyond their permitted scope, compromising data integrity.

Affected Systems and Versions

Zammad 5.3.x is affected by this vulnerability, with the issue being resolved in version 5.4.0.

Exploitation Mechanism

Attackers exploit this vulnerability by leveraging agent and customer roles to gain unauthorized access to articles, enabling them to make unauthorized changes.

Mitigation and Prevention

Understanding the steps to mitigate and prevent exploitation of CVE-2023-29868.

Immediate Steps to Take

Users are recommended to update Zammad to version 5.4.0 to eliminate the vulnerability and prevent unauthorized changes to articles.

Long-Term Security Practices

Implement robust role-based access controls, conduct regular security audits, and educate users on access control best practices to enhance overall system security.

Patching and Updates

Regularly apply security patches and updates provided by Zammad to address vulnerabilities and enhance system security.