CVE-2012-3311 in WebSphere Application Server
Summary
by MITRE
IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.45, 7.0 before 7.0.0.25, 8.0 before 8.0.0.5, and 8.5 before 8.5.0.1 on z/OS, in certain configurations involving Federated Repositories for IIOP connections and Optimized Local Adapters, does not perform CBIND checks, which allows local users to bypass intended access restrictions, and read or modify application data, via unspecified vectors.
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Analysis
by VulDB Data Team • 04/14/2021
The vulnerability described in CVE-2012-3311 represents a critical authorization bypass issue within IBM WebSphere Application Server versions prior to specific patch levels. This flaw specifically affects WebSphere Application Server 6.1 before 6.1.0.45, 7.0 before 7.0.0.25, 8.0 before 8.0.0.5, and 8.5 before 8.5.0.1 when deployed on z/OS platforms. The vulnerability manifests in configurations that utilize Federated Repositories for IIOP connections combined with Optimized Local Adapters, creating a significant security gap in the authorization mechanisms that should protect application data.
The technical root cause of this vulnerability lies in the absence of CBIND checks within the WebSphere Application Server implementation. CBIND checks are crucial authentication and authorization controls that verify the identity and permissions of users attempting to access system resources. When these checks are omitted, local users can exploit the system to bypass intended access restrictions that should prevent unauthorized data access. This represents a fundamental failure in the principle of least privilege and proper access control enforcement within the application server's security architecture.
The operational impact of this vulnerability is severe as it allows local users to both read and modify application data without proper authorization. This means that an attacker with local system access could potentially access sensitive application data, modify business-critical information, and compromise the integrity of the application environment. The vulnerability affects the core security model of WebSphere Application Server, potentially allowing for data breaches, unauthorized transactions, and system compromise that could affect entire enterprise applications running on the platform. The unspecified vectors suggest that the attack surface may be broader than initially apparent, potentially affecting multiple access points within the federated repository configuration.
This vulnerability maps to CWE-284, which describes improper access control in software systems, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential access, as the flaw enables unauthorized access through legitimate system accounts. Organizations running affected WebSphere Application Server versions face significant risk of data compromise and unauthorized system modifications. The z/OS platform context adds complexity as it involves mainframe security considerations and potentially more stringent access control requirements for enterprise environments.
The recommended mitigation strategy involves applying the appropriate security patches from IBM that address the missing CBIND checks in the affected WebSphere Application Server versions. Organizations should also consider implementing additional monitoring and access controls to detect unauthorized access attempts. System administrators should review and tighten access controls for federated repository configurations, particularly those involving IIOP connections and optimized local adapters. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other components of the enterprise application infrastructure. Additionally, organizations may want to consider implementing network segmentation and additional monitoring controls to detect and prevent exploitation attempts against this vulnerability.