CVE-2014-6138 in WebSphere DataPower XC10
Summary
by MITRE
The IBM WebSphere DataPower XC10 appliance 2.1 and 2.5 before FP4 allows remote authenticated users to bypass intended grid-data access restrictions via unspecified vectors.
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Analysis
by VulDB Data Team • 07/07/2017
The vulnerability identified as CVE-2014-6138 affects the IBM WebSphere DataPower XC10 appliance version 2.1 and 2.5 before fix pack 4, representing a critical authorization bypass flaw that undermines the appliance's grid-data access controls. This issue specifically targets the appliance's security mechanisms that are designed to enforce strict access restrictions for grid data, which are essential for maintaining the integrity and confidentiality of enterprise data processing environments. The vulnerability is classified under CWE-284, which addresses improper access control, and aligns with ATT&CK technique T1078 for valid accounts and T1566 for credential harvesting, as it enables unauthorized access through legitimate authenticated sessions.
The technical implementation of this vulnerability stems from insufficient validation of access permissions within the appliance's grid data handling mechanisms. Attackers who have already established authenticated sessions can exploit this flaw to access data that should be restricted based on their assigned roles and grid permissions. The unspecified vectors suggest that the vulnerability may manifest through multiple attack pathways, potentially involving manipulation of API calls, session tokens, or configuration parameters that govern data access. This weakness essentially creates a backdoor within the appliance's authorization framework, allowing users to escalate their privileges and access data beyond their intended scope. The vulnerability's impact is particularly severe in enterprise environments where DataPower appliances manage sensitive data flows and require strict access controls to prevent data breaches.
The operational consequences of this vulnerability extend beyond simple unauthorized data access, as it can enable attackers to compromise entire data processing grids and potentially escalate to more sophisticated attacks. Organizations using affected appliance versions face significant risks including data exfiltration, insider threat exploitation, and potential system compromise through lateral movement within their network infrastructure. The vulnerability affects the appliance's fundamental security model, which is critical for organizations relying on DataPower for API management, security policy enforcement, and enterprise integration services. This flaw undermines trust in the appliance's security controls and could lead to regulatory compliance violations, particularly in industries with strict data protection requirements such as financial services, healthcare, and government sectors.
Mitigation strategies for CVE-2014-6138 require immediate implementation of the vendor-provided fix pack 4 for both appliance versions 2.1 and 2.5, as this represents the official patch addressing the authorization bypass vulnerability. Organizations should conduct comprehensive security assessments to identify any potential exploitation attempts that may have occurred before patching, including monitoring network traffic for unusual access patterns and reviewing system logs for unauthorized data access events. Security teams should implement additional monitoring controls around grid data access points and establish alerting mechanisms for anomalous authentication patterns. Network segmentation strategies should be reinforced to limit the blast radius of potential exploitation, while access control policies should be reviewed and strengthened to ensure proper principle of least privilege enforcement. Organizations should also consider implementing additional security layers such as network intrusion detection systems and enhanced logging capabilities to detect and prevent future exploitation attempts. The vulnerability's classification as a high-severity issue warrants immediate attention from security operations teams and should be prioritized alongside other critical vulnerabilities in the organization's security remediation schedule.