CVE-2016-0389 in WebSphere Application Server
Summary
by MITRE
Admin Center in IBM WebSphere Application Server (WAS) 8.5.5.2 through 8.5.5.9 Liberty before Liberty Fix Pack 16.0.0.2 allows remote attackers to obtain sensitive information via unspecified vectors.
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Analysis
by VulDB Data Team • 02/18/2019
The vulnerability identified as CVE-2016-0389 affects IBM WebSphere Application Server Liberty profile versions 8.5.5.2 through 8.5.5.9 and represents a sensitive information disclosure flaw within the Admin Center component. This issue enables remote attackers to obtain potentially sensitive information through unspecified attack vectors, creating a significant security risk for organizations relying on this application server platform. The vulnerability specifically impacts the administrative interface functionality that provides monitoring and management capabilities for the WebSphere environment. The Admin Center serves as a web-based interface for administrators to configure and monitor server settings, making it a critical component that requires robust security controls. Given that this vulnerability exists in the Liberty profile, which is designed for lightweight deployment scenarios, the risk assessment becomes even more critical as organizations may deploy these servers in less secure environments where traditional security controls might be insufficient.
The technical nature of this vulnerability stems from inadequate input validation and access control mechanisms within the Admin Center functionality. Attackers can exploit unspecified vectors to gain unauthorized access to sensitive data that should normally be restricted to authorized administrative users only. This type of information disclosure vulnerability falls under the broader category of insufficient access control issues and can potentially expose configuration details, system information, or other sensitive metadata that could aid in further exploitation attempts. The vulnerability does not appear to involve direct code execution or privilege escalation but rather focuses on unauthorized data access that could provide attackers with intelligence for more sophisticated attacks. The unspecified nature of the attack vectors suggests that multiple pathways may exist for exploitation, making the vulnerability particularly concerning from a security research perspective as it indicates potential design flaws in the access control implementation.
The operational impact of CVE-2016-0389 extends beyond simple information disclosure, as the leaked information could enable attackers to conduct more targeted attacks against the WebSphere environment. An attacker who successfully exploits this vulnerability could potentially map the server configuration, identify running applications, discover system architecture details, or extract administrative credentials that might be stored in accessible locations. This intelligence gathering capability significantly reduces the attack surface for subsequent exploitation attempts and could lead to more serious security incidents. Organizations using affected versions of WebSphere Liberty profile may find their administrative interfaces compromised, potentially allowing attackers to manipulate server settings, access logs, or other management functions that could disrupt service availability or confidentiality. The vulnerability particularly affects environments where the Liberty profile is deployed in cloud or containerized environments where network segmentation might be less robust.
Organizations should immediately implement mitigations by applying the Liberty Fix Pack 16.0.0.2 or later versions that contain the necessary patches to address this vulnerability. The recommended approach involves conducting a comprehensive assessment of all affected systems and ensuring that the fix is applied across all instances of the WebSphere Liberty profile within the environment. Network segmentation should be enhanced to limit access to the Admin Center interface to only trusted administrative users and systems. Additional monitoring should be implemented to detect unusual access patterns to administrative interfaces that might indicate exploitation attempts. Security teams should review access controls and authentication mechanisms to ensure that administrative interfaces are properly protected with strong authentication and authorization controls. The vulnerability aligns with CWE-200, which addresses information exposure, and represents a significant concern for organizations following ATT&CK framework tactics related to reconnaissance and credential access. Organizations should also consider implementing web application firewalls to monitor and filter traffic to administrative interfaces, as well as establishing regular security assessments to identify similar vulnerabilities in other components of their WebSphere environment.