CVE-2013-0559 in API Management
Summary
by MITRE
Unspecified vulnerability in IBM API Management 2.0 before 2.0.0.1 allows remote attackers to access tenant APIs, and consequently obtain sensitive information or modify data, via unknown vectors.
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Analysis
by VulDB Data Team • 02/11/2018
The vulnerability identified as CVE-2013-0559 affects IBM API Management version 2.0 prior to 2.0.0.1, representing a critical access control flaw that undermines the security posture of enterprise API management systems. This unspecified vulnerability creates a pathway for remote attackers to bypass authentication mechanisms and gain unauthorized access to tenant APIs within the IBM API Management framework. The affected system operates under the assumption that proper isolation exists between different tenant environments, but this vulnerability demonstrates a failure in maintaining tenant segmentation and access controls. The security implications extend beyond simple information disclosure to encompass potential data modification capabilities, making this a particularly dangerous flaw in a system designed to manage and secure enterprise API communications. Such vulnerabilities are particularly concerning in cloud-based API management solutions where multiple organizations share the same infrastructure while expecting complete isolation of their data and services.
The technical nature of this vulnerability stems from inadequate access control implementations within the IBM API Management 2.0 platform, creating a scenario where unauthorized remote actors can traverse the system's security boundaries to access resources belonging to other tenants. This flaw operates at the application layer and leverages weaknesses in the authentication and authorization mechanisms that should normally prevent cross-tenant data access. The unspecified nature of the vulnerability vectors suggests that multiple attack paths may exist, potentially including improper input validation, insecure direct object references, or flawed session management. The vulnerability likely resides in the core API gateway or management components that handle tenant-specific requests and routing, where insufficient validation allows attackers to manipulate API calls to access unauthorized resources. According to CWE classification systems, this vulnerability would align with CWE-285 (Improper Authorization) and potentially CWE-284 (Improper Access Control) as the root causes of the unauthorized access scenario.
The operational impact of CVE-2013-0559 extends far beyond simple data exposure, creating substantial risk for organizations relying on IBM API Management for their enterprise API infrastructure. Attackers exploiting this vulnerability can potentially access sensitive business data, customer information, and proprietary API endpoints belonging to other tenants within the same management system. The ability to modify data introduces additional risk categories including data integrity compromise, service disruption, and potential financial losses through unauthorized transactions or data manipulation. Organizations utilizing cloud-based API management services face particular risk as this vulnerability undermines the fundamental security model of multi-tenancy, where the isolation between different organizations' data and services is paramount. The remote nature of the attack vector means that threat actors can exploit this vulnerability from anywhere on the internet without requiring physical access or local network presence, making detection and prevention more challenging. This vulnerability directly impacts the confidentiality, integrity, and availability of API management services, potentially affecting hundreds or thousands of tenant organizations depending on the scale of the affected IBM API Management deployment.
Mitigation strategies for CVE-2013-0559 must focus on immediate remediation through the installation of the IBM API Management 2.0.0.1 patch or subsequent versions that address the identified access control vulnerabilities. Organizations should implement comprehensive network segmentation and monitoring to detect unauthorized access attempts to API management systems, while also conducting thorough security assessments of their API endpoints to identify any potential exploitation that may have already occurred. The implementation of additional security controls including API key management, rate limiting, and enhanced logging capabilities can provide defense-in-depth measures to limit the impact of potential exploitation. Security teams should also consider implementing network-based intrusion detection systems specifically configured to monitor for suspicious API access patterns and unauthorized tenant data access attempts. Organizations utilizing cloud-based API management services should review their tenant isolation mechanisms and ensure that proper access controls are in place to prevent cross-tenant data leakage. The vulnerability's impact aligns with ATT&CK techniques related to privilege escalation and lateral movement within API management environments, making proactive monitoring and incident response procedures essential. Regular security audits and penetration testing of API management infrastructure should be conducted to identify similar access control vulnerabilities that may exist in the broader system architecture.