CVE-2023-23584 : Exploit Details and Defense Strategies

This CVE-2023-23584 was published by Gallagher on December 18, 2023. It pertains to a vulnerability affecting Gallagher Command Centre Server versions before vEL8.70.1787 (MR2), vEL8.60.2039 (MR4), and all versions of 8.50 and prior.

Understanding CVE-2023-23584

This section will delve into what CVE-2023-23584 entails, its impact, technical details, and mitigation strategies.

What is CVE-2023-23584?

The vulnerability identified as CVE-2023-23584 involves an observable response discrepancy in the Gallagher Command Centre RESTAPI. It enables an insufficiently-privileged user to deduce the existence of items that are typically not visible to them.

The Impact of CVE-2023-23584

The impact of this vulnerability is rated as MEDIUM severity according to the CVSS v3.1 base score of 4.3. It has a low confidentiality impact, low attack complexity, requires low privileges, and no user interaction. The attack vector is through the network, affecting the integrity of the system with no availability impact.

Technical Details of CVE-2023-23584

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

Vulnerability Description

The observable response discrepancy in the Gallagher Command Centre RESTAPI allows unauthorized users to deduce the presence of items that are not within their scope of access.

Affected Systems and Versions

Gallagher Command Centre versions before vEL8.70.1787 (MR2), vEL8.60.2039 (MR4), and all versions of 8.50 and earlier are impacted by this vulnerability.

Exploitation Mechanism

The exploitation of this vulnerability involves leveraging the observable response discrepancy in the RESTAPI to gain insights into restricted information within the Command Centre.

Mitigation and Prevention

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

Immediate Steps to Take

It is crucial for organizations to promptly update their Gallagher Command Centre installations to versions that have addressed this vulnerability. Access controls should also be reviewed to limit privileges appropriately.

Long-Term Security Practices

Incorporating secure coding practices, regular security assessments, and continuous monitoring of system activity can enhance the overall security posture and help prevent similar vulnerabilities in the future.

Patching and Updates

Ensuring that all software and systems are up-to-date with the latest patches and security fixes is essential to mitigating risks associated with known vulnerabilities like CVE-2023-23584. Regularly monitoring vendor advisories and implementing patches promptly can safeguard systems from potential threats.