CVE-2026-108536 in Db2 Genius Hub
Summary
by MITRE • 11/04/2026
IBM Db2 Genius Hub 1.1.2, 1.1.3, 1.1.4, 1.1.5 could allow a remote authenticated attacker to bypass security restrictions due to improper restriction of rendered UI layers or frames.
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Analysis
by VulDB Data Team • 11/04/2026
The vulnerability identified in IBM Db2 Genius Hub versions 1.1.2 through 1.1.5 represents a significant flaw in the application's presentation logic, specifically concerning how user interface elements are constructed and secured against manipulation by authenticated users. This issue stems from an improper restriction of rendered UI layers or frames, which allows for potential frame injection attacks. In modern web applications, security mechanisms such as Content Security Policy (CSP) headers and X-Frame-Options directives are typically employed to prevent malicious sites from embedding the application within iframes, thereby mitigating clickjacking risks. However, in this specific instance, these protective measures were either insufficiently implemented or incorrectly configured for certain UI components, leaving a gap that an attacker can exploit despite having valid authentication credentials.
From a technical perspective, this flaw aligns with CWE-1021 Improper Restriction of Rendered UI Layers or Frames and is closely related to the ATT&CK technique T1568 Dynamic Resolution of Domain Names via DNS Querying when considering how an attacker might probe for vulnerable endpoints, though more directly it falls under T1074 Data Staged which can be facilitated by frame injection. The core issue lies in the server's failure to enforce strict boundaries on how its content is rendered within external contexts. When a web page allows itself to be framed without adequate checks or when it fails to deny framing requests from unauthorized origins, an attacker can create a malicious webpage that loads the vulnerable IBM Db2 Genius Hub interface inside a hidden iframe. This setup enables the attacker to overlay deceptive elements on top of the legitimate UI, tricking the authenticated user into performing unintended actions.
The operational impact of this vulnerability is primarily centered around clickjacking attacks where an authenticated user can be manipulated into executing commands or accessing sensitive data without their explicit consent. Since the attack requires authentication, it targets users who have already logged in and possess elevated privileges within the system. An attacker could craft a phishing scenario where they lure a victim to visit a malicious site that silently loads the IBM Db2 Genius Hub interface. By carefully aligning transparent overlays with critical buttons such as delete, export, or configuration change options, the attacker can cause the user to inadvertently trigger these actions. This undermines the integrity of administrative functions and could lead to unauthorized data modification, deletion, or exposure depending on the specific capabilities exposed through the vulnerable UI layers.
Mitigation strategies for this vulnerability involve both immediate patching and long-term architectural improvements. The most effective remediation is to upgrade IBM Db2 Genius Hub to a version that includes fixes for this frame restriction issue, ensuring that all UI components are properly secured against external embedding attempts. Additionally, administrators should verify the implementation of robust Content Security Policy headers across all application endpoints, specifically utilizing the frame-ancestors directive to explicitly whitelist only trusted domains or deny framing entirely if not required by business logic. Regular security audits and penetration testing focused on clickjacking vectors can help identify similar weaknesses in other parts of the infrastructure before they are exploited.