CVE-2025-23367 is a vulnerability discovered in the Wildfly Server's Role Based Access Control (RBAC) provider affecting versions up to 28.0.0.Beta1. The issue arises because the Suspend and Resume operation handlers do not perform proper authorization checks to verify if the user has the necessary privileges. Specifically, users assigned to the Monitor or Auditor roles, which are intended to have read-only access, can exploit this flaw to suspend or resume the server. This improper access control bypass allows unauthorized users to disrupt server availability by suspending operations, potentially causing denial of service. The vulnerability has a CVSS 3.1 base score of 6.5, reflecting medium severity, with an attack vector over the network, low attack complexity, requiring privileges (Monitor or Auditor role), no user interaction, and impacting availability only. No known exploits have been reported in the wild as of the publication date. The flaw highlights a critical gap in the RBAC implementation where sensitive management operations are not adequately protected, undermining the principle of least privilege. Organizations relying on Wildfly for Java application hosting or middleware services should be aware of this vulnerability as it can be leveraged by insiders or attackers with limited privileges to disrupt services.

For European organizations, this vulnerability poses a risk primarily to the availability of services hosted on Wildfly servers. Unauthorized suspension of the server can lead to denial of service, impacting business continuity, especially for critical applications in finance, healthcare, government, and telecommunications sectors. Since the vulnerability can be exploited by users with Monitor or Auditor roles, which are commonly assigned for operational oversight, insider threats or compromised accounts could trigger service outages. This could result in operational disruptions, financial losses, and reputational damage. Additionally, organizations subject to strict regulatory requirements around service availability and incident reporting (e.g., GDPR, NIS Directive) may face compliance challenges if this vulnerability is exploited. The medium severity rating indicates a moderate but tangible risk that should be addressed promptly to maintain secure and reliable operations.

To mitigate CVE-2025-23367, organizations should take the following specific actions: 1) Immediately review and restrict RBAC role assignments to ensure only trusted personnel have Monitor or Auditor roles, minimizing the risk of misuse. 2) Implement enhanced monitoring and alerting on management operations, particularly suspend and resume commands, to detect unauthorized attempts promptly. 3) Apply any available vendor patches or updates addressing this vulnerability as soon as they are released. 4) If patches are not yet available, consider implementing compensating controls such as network segmentation to limit access to management interfaces and enforce multi-factor authentication for users with elevated roles. 5) Conduct regular audits of user privileges and server management logs to identify anomalous activities. 6) Educate administrators and security teams about this vulnerability to raise awareness and improve incident response readiness. These measures go beyond generic advice by focusing on role management, monitoring, and operational controls tailored to the specifics of this RBAC flaw.