CVE-2016-2386 in NetWeaver J2EE Engine
Summary
by MITRE
SQL injection vulnerability in the UDDI server in SAP NetWeaver J2EE Engine 7.40 allows remote attackers to execute arbitrary SQL commands via unspecified vectors, aka SAP Security Note 2101079.
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Analysis
by VulDB Data Team • 04/23/2026
The vulnerability identified as CVE-2016-2386 represents a critical SQL injection flaw within the Universal Description Discovery and Integration UDDI server component of SAP NetWeaver J2EE Engine version 7.40. This vulnerability exists in the backend database interaction layer where user-supplied input is not properly sanitized before being incorporated into SQL query constructions. The flaw allows remote attackers to manipulate database queries through crafted input parameters, potentially enabling unauthorized access to sensitive data and system compromise. The vulnerability is particularly concerning as it affects the foundational integration services that enable enterprise application communication and data exchange within SAP environments.
The technical implementation of this vulnerability stems from inadequate input validation and parameter sanitization within the UDDI server's query processing mechanisms. Attackers can exploit this weakness by injecting malicious SQL payloads through unspecified vectors that likely involve web service requests or direct API interactions with the UDDI server. The vulnerability maps to CWE-89, which specifically addresses SQL injection flaws where untrusted data is incorporated into SQL commands without proper escaping or parameterization. This weakness allows attackers to bypass authentication mechanisms, extract confidential information, modify database contents, or even execute arbitrary commands on the underlying database server. The attack surface extends beyond simple data theft to potentially enable full system compromise through database-level privileges escalation.
The operational impact of CVE-2016-2386 is severe for organizations relying on SAP NetWeaver J2EE Engine environments, as it provides attackers with direct access to corporate data repositories through the UDDI integration services. This vulnerability can result in data breaches, intellectual property theft, and disruption of business operations, particularly in enterprise environments where the UDDI server facilitates critical integration between different business applications. The remote exploit capability means that attackers can target these systems from outside the corporate network without requiring physical access or prior authentication. Organizations may face regulatory compliance violations, financial losses, and reputational damage if sensitive corporate data is compromised through this vulnerability. The attack vector typically involves crafting malicious requests that manipulate the UDDI server's database interactions to execute unauthorized SQL commands.
Mitigation strategies for CVE-2016-2386 should prioritize immediate implementation of SAP's official security patch referenced in SAP Security Note 2101079, which addresses the root cause through proper input validation and parameter sanitization mechanisms. Organizations should implement network segmentation to limit access to UDDI server endpoints and deploy web application firewalls to monitor and filter suspicious database query patterns. Additional protective measures include disabling unnecessary UDDI server functionality, implementing strict access controls, and conducting regular security assessments of integration points. The vulnerability demonstrates the importance of following secure coding practices and adhering to the principle of least privilege in database interactions. Security teams should also consider implementing database activity monitoring and intrusion detection systems to identify potential exploitation attempts. According to ATT&CK framework, this vulnerability aligns with T1071.005 for application layer protocol usage and T1190 for exploit via web applications, highlighting the need for comprehensive defensive strategies across multiple attack surface areas.