CVE-2016-0638 in WebLogic Server
Summary
by MITRE
Unspecified vulnerability in the Oracle WebLogic Server component in Oracle Fusion Middleware 10.3.6, 12.1.2, 12.1.3, and 12.2.1 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to Java Messaging Service.
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Analysis
by VulDB Data Team • 07/25/2022
The vulnerability identified as CVE-2016-0638 resides within Oracle WebLogic Server component of the Fusion Middleware suite, specifically affecting versions 10.3.6, 12.1.2, 12.1.3, and 12.2.1. This unspecified weakness manifests within the Java Messaging Service (JMS) subsystem, representing a critical security gap that enables remote attackers to compromise the confidentiality, integrity, and availability of affected systems. The vulnerability's classification as unspecified indicates that Oracle did not provide detailed technical specifics about the precise nature of the flaw during the initial disclosure, though subsequent analysis has revealed its impact on core messaging functionality.
The technical flaw operates through the Java Messaging Service subsystem which is integral to WebLogic Server's enterprise messaging capabilities. Attackers can exploit this vulnerability remotely without requiring authentication credentials, leveraging the JMS component's processing mechanisms to execute malicious code or manipulate message flows. The vulnerability's impact spans all three fundamental security principles as defined by the CIA triad, allowing adversaries to read confidential data, modify system integrity through unauthorized message manipulation, and potentially disrupt availability through service denial attacks. This broad impact scope aligns with common attack patterns documented in the ATT&CK framework under the T1190 technique for exploiting vulnerabilities in enterprise messaging systems.
The operational impact of this vulnerability extends beyond simple data compromise, as the Java Messaging Service is typically used for critical enterprise communications and transaction processing. Organizations running affected WebLogic Server versions face potential data breaches, service disruptions, and system compromise that could cascade through interconnected enterprise applications. The remote exploitation capability means that attackers can target these systems from outside the corporate network, making the vulnerability particularly dangerous for organizations with exposed web servers or those lacking proper network segmentation. This vulnerability directly relates to CWE-119, which addresses weaknesses in the storage of data that can be accessed through memory corruption or improper access control mechanisms.
Mitigation strategies for CVE-2016-0638 should prioritize immediate patch deployment from Oracle, as the vulnerability affects multiple versions of the WebLogic Server platform. Organizations must also implement network segmentation to limit access to WebLogic Server instances, particularly those exposed to external networks. Additional protective measures include disabling unnecessary JMS features, implementing strict access controls for messaging endpoints, and monitoring for unusual message processing patterns. The vulnerability demonstrates the importance of maintaining updated enterprise middleware components and following security best practices outlined in frameworks such as the NIST Cybersecurity Framework. Organizations should also consider implementing intrusion detection systems specifically configured to monitor for exploitation attempts targeting Java messaging services and related enterprise application vulnerabilities.