CVE-2016-0870 in Tracer SC
Summary
by MITRE
The web server in Trane Tracer SC 4.2.1134 and earlier allows remote attackers to read sensitive configuration files via a direct request.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 04/19/2019
The vulnerability identified as CVE-2016-0870 affects the Trane Tracer SC 4.2.1134 and earlier versions of the web server component. This issue represents a critical misconfiguration that exposes sensitive system files to unauthorized remote access. The Trane Tracer SC is a building automation system used for managing HVAC equipment in commercial and industrial facilities, making this vulnerability particularly concerning from a cybersecurity perspective as it could potentially compromise building infrastructure control systems.
The technical flaw stems from inadequate access controls within the web server implementation, specifically allowing direct file access through URL parameters or path traversal mechanisms. Attackers can exploit this weakness by crafting malicious HTTP requests that directly target configuration files, system logs, or other sensitive data stored on the server. This type of vulnerability typically falls under CWE-22, which describes path traversal or directory traversal attacks, where an attacker manipulates file access requests to gain unauthorized access to files outside the intended directory structure. The vulnerability demonstrates poor input validation and insufficient authorization checks that permit arbitrary file retrieval.
The operational impact of this vulnerability extends beyond simple information disclosure, as the exposed configuration files may contain sensitive operational parameters including system credentials, network configurations, HVAC settings, and potentially proprietary building management data. In the context of industrial control systems, this exposure could enable attackers to gain insights into building operational procedures, identify system vulnerabilities, or even manipulate HVAC controls to disrupt operations or create security breaches. The ATT&CK framework categorizes this as a technique for privilege escalation and information gathering, where adversaries can use the retrieved configuration data to plan more sophisticated attacks against the building automation network.
Mitigation strategies should focus on implementing proper access controls, input validation, and authentication mechanisms within the web server configuration. Organizations should immediately update to the latest version of Trane Tracer SC software that addresses this vulnerability, as Trane likely released patches or firmware updates to resolve the issue. Network segmentation and firewall rules should be implemented to restrict direct access to the web server from untrusted networks, while also ensuring that file access permissions are properly configured to prevent unauthorized file retrieval. Additionally, regular security assessments of industrial control systems should include checks for similar misconfigurations that could expose sensitive operational data, aligning with NIST SP 800-82 guidelines for industrial control systems security.