CVE-2020-4990 in Security Guardium
Summary
by MITRE • 05/24/2021
IBM Security Guardium 11.2 is vulnerable to SQL injection. A remote attacker could send specially crafted SQL statements, which could allow the attacker to view, add, modify or delete information in the back-end database. IBM X-Force ID: 192710.
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Analysis
by VulDB Data Team • 05/27/2021
IBM Security Guardium version 11.2 contains a critical SQL injection vulnerability that exposes the underlying database system to unauthorized access and manipulation. This vulnerability arises from insufficient input validation and sanitization within the application's database query processing mechanisms, allowing malicious actors to inject arbitrary SQL commands through specially crafted payloads. The flaw exists in the application's handling of user-supplied input that is directly incorporated into database queries without proper escaping or parameterization. Attackers can exploit this weakness to execute unauthorized database operations including data retrieval, modification, insertion, and deletion, potentially compromising the integrity and confidentiality of sensitive information stored within the Guardium environment.
The technical exploitation of this vulnerability follows standard SQL injection attack patterns where malicious input is designed to alter the intended query execution flow. When user input is processed without adequate sanitization, attackers can manipulate the SQL statement structure to bypass authentication mechanisms or directly access database tables. The vulnerability impacts the database layer directly, meaning that successful exploitation could result in complete database compromise including access to audit logs, configuration data, and sensitive security information managed by Guardium. This represents a significant risk to organizations relying on the platform for database activity monitoring and security governance, as the attacker could potentially hide malicious activities or extract confidential data from the monitored systems.
The operational impact of this vulnerability extends beyond immediate data compromise to include potential long-term security degradation and compliance violations. Organizations using IBM Security Guardium may face regulatory penalties if sensitive data is accessed or modified without authorization, particularly in environments subject to data protection regulations such as gdpr, hipaa, or pci dss. The vulnerability affects the platform's core functionality as a database security solution, creating a paradoxical situation where the security tool itself becomes a potential attack vector. This weakness undermines the trust model that security solutions like Guardium are designed to establish, potentially allowing attackers to evade detection mechanisms while simultaneously accessing the very data that the platform is meant to protect.
Organizations should implement immediate mitigations including input validation controls, parameterized queries, and web application firewalls to prevent exploitation of this vulnerability. The recommended approach involves applying IBM's official security patches and updates as soon as they become available, while also implementing network segmentation to limit access to the Guardium system. Additionally, organizations should conduct thorough vulnerability assessments to identify any other potential injection points within their database environments and implement proper database access controls. This vulnerability aligns with CWE-89 which specifically addresses SQL injection flaws, and represents a technique commonly used in the attack phase of the kill chain as documented in the ATT&CK framework under T1071.004 for application layer protocol manipulation. The security community should also consider implementing database activity monitoring solutions that can detect anomalous SQL patterns indicative of injection attacks, providing an additional layer of defense against such exploitation techniques.