CVE-2008-0897 in WebLogic Server
Summary
by MITRE
Unspecified vulnerability in BEA WebLogic Server 9.0 through 10.0 allows remote authenticated users without "receive" permissions to bypass intended access restrictions and receive messages from a standalone JMS Topic or secured Distributed Topic member destination, related to durable subscriptions.
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Analysis
by VulDB Data Team • 08/05/2019
The vulnerability identified as CVE-2008-0897 represents a critical access control flaw within BEA WebLogic Server versions 9.0 through 10.0 that specifically affects Java Message Service JMS messaging components. This issue manifests in the form of an authorization bypass that permits remote authenticated users to circumvent intended security restrictions governing message consumption from JMS topics. The flaw is particularly concerning because it operates through durable subscriptions mechanisms, which are designed to maintain message delivery guarantees even when consumers are temporarily unavailable. The vulnerability affects both standalone JMS topics and secured distributed topic member destinations, indicating a broad impact across different deployment configurations of the WebLogic messaging infrastructure.
The technical root cause of this vulnerability lies in improper validation of access permissions within the JMS subscription handling code path. When users establish durable subscriptions to JMS topics, the system should enforce strict authorization checks to ensure that only users with appropriate permissions can receive messages from specific destinations. However, the flaw allows authenticated users without explicit "receive" permissions to bypass these checks and access messages from topics they should not be authorized to consume. This represents a classic privilege escalation vulnerability where legitimate authenticated users can gain unauthorized access to resources beyond their intended permissions. The issue is particularly insidious because it operates at the messaging layer, where data confidentiality and integrity are paramount, and can potentially expose sensitive information flowing through enterprise messaging systems.
From an operational perspective, this vulnerability poses significant risks to organizations relying on WebLogic Server for enterprise messaging infrastructure. The impact extends beyond simple unauthorized message access to potential data breaches, information disclosure, and violation of security policies governing message flow within enterprise networks. Attackers could exploit this vulnerability to intercept sensitive communications, including financial data, personal information, or proprietary business communications that flow through JMS topics. The vulnerability affects both standalone and distributed topic configurations, meaning that organizations with complex messaging topologies are equally at risk. This flaw undermines the fundamental security model of JMS durable subscriptions, which are designed to provide reliable message delivery while maintaining strict access controls, and represents a failure in the principle of least privilege enforcement.
Organizations should implement immediate mitigations including applying the vendor-provided patches and updates for WebLogic Server 9.0 through 10.0, reviewing and tightening JMS topic permissions, and implementing additional monitoring for unauthorized access attempts. Security administrators should also consider disabling durable subscriptions for sensitive topics where possible, implementing network-level access controls, and conducting comprehensive audits of JMS messaging configurations. The vulnerability aligns with CWE-284, which describes improper access control in software systems, and represents a specific instance of how messaging security controls can be bypassed. From an ATT&CK framework perspective, this vulnerability maps to privilege escalation and credential access techniques, as it allows authenticated users to gain unauthorized access to resources they should not be permitted to access. The flaw demonstrates the critical importance of proper access control implementation at all layers of enterprise messaging systems and highlights the potential for seemingly minor configuration issues to create significant security vulnerabilities in mission-critical infrastructure components.