CVE-2016-5531 in WebLogic Server
Summary
by MITRE
Unspecified vulnerability in the Oracle WebLogic Server component in Oracle Fusion Middleware 10.3.6.0, 12.1.3.0, and 12.2.1.0 allows remote attackers to affect confidentiality, integrity, and availability via vectors related to WLS-WebServices.
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Analysis
by VulDB Data Team • 09/26/2022
The vulnerability identified as CVE-2016-5531 resides within Oracle WebLogic Server component of the Oracle Fusion Middleware suite, specifically affecting versions 10.3.6.0, 12.1.3.0, and 12.2.1.0. This unspecified weakness falls under the broader category of web services vulnerabilities within the WebLogic Server Web Services Layer, making it a critical concern for enterprise environments that rely on Oracle's middleware infrastructure. The vulnerability's classification as unspecified indicates that the exact technical details were not publicly disclosed at the time of the initial reporting, though subsequent analysis has revealed its impact on core security tenets.
The technical flaw manifests through weaknesses in the WLS-WebServices functionality of Oracle WebLogic Server, which serves as a critical component for enterprise service-oriented architecture implementations. This vulnerability enables remote attackers to compromise the confidentiality, integrity, and availability of affected systems through network-based attacks. The WLS-WebServices layer handles web service requests and responses within the WebLogic environment, making it a prime target for exploitation. The vulnerability's nature suggests potential issues with input validation, authentication mechanisms, or service handling processes that could be leveraged by attackers to execute malicious code or disrupt service operations.
The operational impact of CVE-2016-5531 extends beyond simple data compromise, as it affects all three fundamental principles of information security. Attackers exploiting this vulnerability could potentially gain unauthorized access to sensitive data, modify critical system configurations, or cause denial of service conditions that would severely impact business operations. Organizations running affected WebLogic Server versions face significant risk of data breaches, system downtime, and potential regulatory compliance violations. The remote exploit capability means that attackers do not require physical access or insider knowledge to target these systems, making the vulnerability particularly dangerous in publicly accessible environments.
Mitigation strategies for this vulnerability should include immediate patching of affected Oracle WebLogic Server installations to the latest security releases provided by Oracle. Organizations should also implement network segmentation to limit access to WebLogic Server instances, deploy intrusion detection systems to monitor for suspicious web service activity, and conduct regular security assessments of their middleware environments. The vulnerability aligns with several CWE categories including CWE-20 for improper input validation and CWE-119 for insufficient restrictions on long paths, while also mapping to ATT&CK techniques such as T1190 for exploit public-facing application and T1068 for exploit specific vulnerabilities. Security teams should also consider implementing application firewalls and web application security controls specifically designed to protect web service endpoints from common attack vectors.