CVE-2023-23751 Explained : Impact and Mitigation

This CVE-2023-23751 pertains to an issue discovered in Joomla! CMS versions 4.0.0 through 4.2.6 that allows non super-admin users to access com_actionlogs due to a missing ACL check.

Understanding CVE-2023-23751

This section will delve into what CVE-2023-23751 entails, its impact, technical details, and how to mitigate and prevent exploitation.

What is CVE-2023-23751?

The CVE-2023-23751 vulnerability in Joomla! CMS versions 4.0.0 through 4.2.6 arises from a missing ACL (Access Control List) check. This oversight permits non super-admin users unauthorized access to com_actionlogs, potentially compromising sensitive information.

The Impact of CVE-2023-23751

The impact of this vulnerability could lead to unauthorized users gaining access to com_actionlogs, potentially exposing confidential data and compromising the security and integrity of the Joomla! system.

Technical Details of CVE-2023-23751

Here, we will explore the vulnerability description, affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability in Joomla! CMS versions 4.0.0 through 4.2.6 stems from a missing ACL check that allows non super-admin users to access com_actionlogs, posing a security risk to the system.

Affected Systems and Versions

The affected system includes Joomla! CMS versions 4.0.0 through 4.2.6. Users operating on these versions are at risk of exploitation due to the ACL oversight.

Exploitation Mechanism

Exploiting CVE-2023-23751 involves leveraging the missing ACL check to gain illicit access to com_actionlogs, potentially leading to unauthorized data exposure and system compromise.

Mitigation and Prevention

In this section, we will discuss the immediate steps to take, long-term security practices, and the importance of patching and updates.

Immediate Steps to Take

Update Joomla! CMS: Ensure that your Joomla! installation is updated to a secure version that addresses the ACL vulnerability.
Restrict Access: Limit access to sensitive areas such as com_actionlogs to authorized super-admin users only.
Monitor Activity: Regularly monitor and audit user activity to detect any unauthorized access attempts.

Long-Term Security Practices

Regular Security Audits: Conduct periodic security audits to identify potential vulnerabilities and address them proactively.
User Permissions Review: Regularly review and update user permissions to ensure that access controls are appropriately configured.
Security Training: Provide security awareness training to users to enhance their understanding of potential risks and best practices.

Patching and Updates

Stay informed about security advisories and patches released by Joomla! Project. Promptly apply updates to ensure that known vulnerabilities are mitigated, reducing the risk of exploitation associated with CVE-2023-23751.