CVE-2018-18985 in Niagara Enterprise Security
Summary
by MITRE
Tridium Niagara Enterprise Security 2.3u1, all versions prior to 2.3.118.6, Niagara AX 3.8u4, all versions prior to 3.8.401.1, Niagara 4.4u2, all versions prior to 4.4.93.40.2, and Niagara 4.6, all versions prior to 4.6.96.28.4 contain a cross-site scripting vunerability that could allow remote attackers to inject code.
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Analysis
by VulDB Data Team • 05/06/2020
This vulnerability exists within the Tridium Niagara platform ecosystem, specifically affecting multiple versions of Niagara Enterprise Security, Niagara AX, and Niagara 4.x series software. The cross-site scripting flaw represents a critical web application security weakness that enables remote attackers to inject malicious code into web interfaces. The vulnerability impacts the core authentication and authorization mechanisms of these industrial automation platforms, which are widely deployed in critical infrastructure environments including manufacturing facilities, energy grids, and building automation systems. The affected versions span several major releases, indicating a prolonged period during which the security flaw remained unpatched and potentially exploitable across different Niagara platform iterations.
The technical implementation of this XSS vulnerability stems from insufficient input validation and output encoding within the web-based management interfaces of the Niagara platforms. Attackers can exploit this weakness by crafting malicious payloads that get executed in the context of authenticated users' browsers, potentially allowing for session hijacking, data exfiltration, or privilege escalation within the industrial control environment. The vulnerability typically manifests when user-supplied data is directly rendered in web pages without proper sanitization, creating opportunities for attackers to inject script tags, javascript code, or other malicious content that executes in the victim's browser context. This flaw aligns with CWE-79 which specifically addresses cross-site scripting vulnerabilities in web applications, and represents a fundamental failure in the platform's input validation and output encoding mechanisms.
The operational impact of this vulnerability extends beyond typical web application risks, particularly given the industrial nature of Niagara platforms and their deployment in critical infrastructure environments. An attacker who successfully exploits this XSS vulnerability could gain unauthorized access to industrial control systems, potentially leading to operational disruptions, data manipulation, or even physical safety risks in industrial processes. The attack surface includes web-based administrative interfaces, configuration tools, and monitoring dashboards that are commonly accessed by operators and administrators. This vulnerability could enable attackers to escalate privileges, access sensitive operational data, or manipulate control system parameters, making it particularly dangerous in environments where industrial automation systems control critical processes such as power generation, water treatment, or manufacturing operations.
Organizations should immediately implement comprehensive patch management strategies to upgrade all affected Niagara platform versions to their secure releases, specifically targeting Niagara Enterprise Security 2.3.118.6, Niagara AX 3.8.401.1, and Niagara 4.4.93.40.2 and 4.6.96.28.4 versions. Network segmentation and web application firewalls should be deployed to monitor and filter traffic to affected web interfaces, while security awareness training should emphasize the importance of avoiding suspicious links or content in administrative web portals. Regular security assessments should include thorough testing of web application interfaces for similar vulnerabilities, and access controls should be strictly enforced using multi-factor authentication and least privilege principles. The vulnerability also highlights the importance of implementing secure coding practices and regular security code reviews for industrial automation platforms, aligning with the ATT&CK framework's tactics related to initial access and privilege escalation through web application vulnerabilities. Organizations should also consider implementing intrusion detection systems specifically configured to identify suspicious web-based attack patterns and maintain detailed audit logs of administrative activities to facilitate incident response and forensic analysis.