CVE-2013-2102 in JBoss Portal
Summary
by MITRE
The default configuration of Red Hat JBoss Portal before 6.1.0 enables the JGroups diagnostics service with no authentication when a JGroups channel is started, which allows remote attackers to obtain sensitive information (diagnostics) by accessing the service.
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Analysis
by VulDB Data Team • 05/31/2021
The vulnerability identified as CVE-2013-2102 represents a critical security flaw in the default configuration of Red Hat JBoss Portal versions prior to 6.1.0. This issue stems from the improper initialization of the JGroups diagnostics service, which is a clustering communication framework used by the application server. The vulnerability specifically affects the configuration management practices within the JBoss Portal implementation, where the diagnostics service is enabled by default without adequate authentication mechanisms. This misconfiguration creates an attack surface that exposes sensitive operational information to unauthorized remote actors who can access the service directly through network connections.
The technical flaw resides in the JGroups component's default settings that fail to implement proper access controls for diagnostic endpoints. When a JGroups channel is initiated, the diagnostics service automatically starts and listens on network ports without requiring any form of authentication or authorization validation. This configuration allows attackers to connect to the service and retrieve detailed information about the cluster's internal state, including node configurations, communication patterns, and other operational details that could be leveraged for further attacks. The vulnerability aligns with CWE-284 which addresses improper access control, specifically focusing on the lack of authentication for privileged services. From an operational perspective, this flaw enables reconnaissance activities that could lead to more sophisticated attacks targeting the underlying infrastructure.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed diagnostic information provides attackers with valuable insights into the system's architecture and internal workings. An attacker could use the gathered information to identify potential attack vectors, understand network topology, and plan more targeted exploitation attempts. The lack of authentication means that any remote network entity can access these services without requiring valid credentials, making the attack surface extremely broad and accessible. This vulnerability particularly impacts organizations using older versions of JBoss Portal where patching may not have been immediately implemented, creating persistent exposure windows. The threat landscape for this vulnerability aligns with ATT&CK technique T1083 which covers directory and file system discovery, as the exposed diagnostics data essentially reveals internal system structures and configurations.
Organizations affected by this vulnerability should prioritize immediate remediation through patching to JBoss Portal 6.1.0 or later versions where the diagnostics service is properly configured with authentication requirements. System administrators should also implement network segmentation and firewall rules to restrict access to JGroups diagnostic ports, though this represents a temporary workaround rather than a permanent solution. The recommended mitigation strategy includes reviewing and hardening the default configuration settings to ensure that diagnostic services are either disabled or properly secured with strong authentication mechanisms. Additionally, organizations should conduct regular security assessments to identify similar misconfigurations in other components of their JBoss Portal deployments and implement comprehensive monitoring to detect unauthorized access attempts to sensitive system information.