CVE-2025-36124 in WebSphere Application Server Liberty
Summary
by MITRE • 08/12/2025
IBM WebSphere Application Server Liberty 17.0.0.3 through 25.0.0.8 could allow a remote attacker to bypass security restrictions caused by a failure to honor JMS messaging configuration
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Analysis
by VulDB Data Team • 12/22/2025
IBM WebSphere Application Server Liberty version 17.0.0.3 through 25.0.0.8 contains a critical security vulnerability that allows remote attackers to bypass authentication and authorization controls within the JMS messaging subsystem. This vulnerability stems from insufficient validation of JMS configuration parameters that govern message delivery and access controls. The flaw specifically manifests when the application server fails to properly enforce security restrictions during JMS messaging operations, creating potential pathways for unauthorized access to protected resources. Attackers can exploit this weakness to gain elevated privileges or access restricted messaging queues and topics that should be protected by standard security policies.
The technical implementation of this vulnerability involves the Liberty server's handling of JMS configuration settings where security controls are not consistently applied across all messaging operations. When JMS messages are processed or routed through the application server, the system does not properly validate that the requesting entity has appropriate authorization levels for the target messaging resources. This misconfiguration allows attackers to manipulate JMS message flows and potentially access sensitive information or perform unauthorized operations on the messaging infrastructure. The vulnerability affects the core messaging framework and can impact various JMS-based applications deployed on the Liberty platform.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass potential data exposure and service disruption. Remote attackers could leverage this flaw to access confidential messages, intercept communications, or manipulate message queues in ways that compromise the integrity and confidentiality of enterprise messaging systems. Organizations utilizing IBM WebSphere Liberty with JMS messaging capabilities face significant risk of unauthorized access to business-critical data flows, particularly in environments where sensitive information is transmitted through messaging queues. The vulnerability's remote exploitability means that attackers do not require local system access or physical presence to capitalize on this weakness.
Security mitigations for this vulnerability should include immediate application of IBM's security patches and updates to the affected Liberty server versions. Organizations must also implement network segmentation to limit access to JMS endpoints and enhance monitoring of messaging traffic for anomalous patterns. Additional protective measures include enforcing strict access controls on JMS resources, implementing comprehensive logging of messaging operations, and regularly auditing security configurations. This vulnerability aligns with CWE-284, which addresses improper access control in software systems, and maps to ATT&CK technique T1078 for valid accounts and T1566 for phishing, as attackers may leverage this weakness to establish persistent access or deliver malicious payloads through compromised messaging channels. Organizations should conduct thorough security assessments of their messaging infrastructure to identify any additional configuration weaknesses that could compound the impact of this vulnerability.