CVE-2023-23576 Explained : Impact and Mitigation

This CVE-2023-23576 was published on December 18, 2023, by Gallagher with the description revealing an issue in the Command Centre Server. This vulnerability could potentially allow privileged users to gain physical access to a site for longer than intended under certain circumstances, posing a security risk.

Understanding CVE-2023-23576

This section delves into the specifics of CVE-2023-23576, shedding light on its impact, technical details, affected systems, and mitigation strategies.

What is CVE-2023-23576?

The vulnerability identified in CVE-2023-23576 relates to an incorrect behavior order in the Gallagher Command Centre Server. This flaw could be exploited by privileged users, resulting in extended physical access to a site following a network outage when competencies are used in the access decision.

The Impact of CVE-2023-23576

With a CVSSv3.1 base score of 4.3 (Medium severity), the vulnerability's impact is notable. The attack vector is physical, with low complexities and privileges required. While there is no availability impact, the integrity impact is assessed as high, making it imperative to address this issue promptly.

Technical Details of CVE-2023-23576

This section provides deeper insights into the vulnerability, the affected systems and versions, as well as the exploitation mechanism.

Vulnerability Description

The vulnerability stems from an incorrect behavior order in the Command Centre Server, leading to unauthorized prolonged physical access to sites under specific conditions.

Affected Systems and Versions

The issue impacts various versions of the Gallagher Command Centre, including versions prior to vEL8.90.1620 (MR2), vEL8.80.1369 (MR3), vEL8.70.2375 (MR5), vEL8.60.2550 (MR7), and all versions of 8.50 and earlier.

Exploitation Mechanism

The vulnerability can be exploited by privileged users leveraging competencies in access decision-making processes to gain extended physical access to a site following a network outage.

Mitigation and Prevention

To mitigate the risks associated with CVE-2023-23576, taking immediate steps, incorporating long-term security practices, and promptly applying patches and updates are crucial.

Immediate Steps to Take

Immediate actions include assessing and securing affected systems, limiting privileged access, and monitoring access controls to prevent unauthorized physical access to sites.

Long-Term Security Practices

Establishing robust access control policies, conducting regular security audits, and providing continuous security awareness training can enhance long-term security measures against similar vulnerabilities.

Patching and Updates

Updating affected software to versions that address the vulnerability, applying security patches released by Gallagher, and staying informed about security advisories are essential steps in mitigating CVE-2023-23576.