CVE-2016-9168 in eDirectory
Summary
by MITRE
A missing X-Frame-Options header in the NDS Utility Monitor in NDSD in Novell eDirectory before 9.0.2 could be used by remote attackers for clickjacking.
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Analysis
by VulDB Data Team • 03/23/2017
The vulnerability identified as CVE-2016-9168 represents a critical web application security flaw in the Novell eDirectory NDS Utility Monitor component. This issue manifests through the absence of the X-Frame-Options HTTP response header, which serves as a fundamental security mechanism to prevent clickjacking attacks. The vulnerability affects Novell eDirectory versions prior to 9.0.2, specifically targeting the NDS Utility Monitor interface that provides administrative functionality for directory services management.
The technical flaw stems from the missing X-Frame-Options header implementation within the web interface of the NDS Utility Monitor. This header is essential for protecting web applications from being embedded within frame elements of other websites, which attackers can exploit to perform clickjacking attacks. Without this protection, malicious actors can overlay transparent or opaque HTML elements over legitimate user interface components, potentially tricking users into performing unintended actions. The vulnerability specifically impacts the administrative monitoring interface that allows users to manage directory services, making it particularly dangerous for enterprise environments where privileged access is involved.
The operational impact of this vulnerability extends beyond simple web security concerns to encompass significant risks for enterprise directory services management. Attackers leveraging this flaw could construct malicious web pages that embed the NDS Utility Monitor interface within hidden frames, then manipulate user interactions to perform unauthorized administrative actions. This clickjacking capability compromises the integrity of directory service management operations and could potentially lead to privilege escalation, unauthorized configuration changes, or data manipulation within the eDirectory environment. The vulnerability's severity is amplified by the fact that it affects administrative interfaces, which typically possess elevated privileges and access to critical enterprise resources.
Organizations affected by this vulnerability should immediately implement the vendor-provided patch for Novell eDirectory version 9.0.2 or later, which addresses the missing X-Frame-Options header implementation. Additionally, network administrators should consider implementing Content Security Policy headers as an additional layer of protection, though this serves as a supplementary measure rather than a complete replacement for the X-Frame-Options header. The vulnerability aligns with CWE-1021, which specifically addresses Improper Restriction of Rendered UI Layers or Frames, and maps to ATT&CK technique T1211 for the exploitation of clickjacking vulnerabilities. Security monitoring should include detection of suspicious frame embedding patterns and unauthorized access attempts to administrative interfaces, while regular security assessments should verify proper header implementation across all web applications within the enterprise infrastructure.