OTPulse

CodeWrights GmbH HART DTM Vulnerability

Low RiskICS-CERT ICSA-15-012-01Oct 15, 2015
Summary

CodeWrights GmbH HART DTM (Data Transfer Module) DTMStudio versions before 1.5.151 contain an information disclosure vulnerability (CWE-200). The vulnerability allows unauthorized access to sensitive data.

What this means
What could happen
An attacker could gain access to sensitive configuration or operational data from DTMStudio, potentially exposing information about connected HART field instruments and process configurations used in water or electrical distribution systems.
Who's at risk
Water utilities and electrical distribution operators who use DTMStudio for HART instrumentation configuration and management. This affects facilities using HART-based field instruments (transmitters, positioners, valve controllers) that rely on DTMStudio for device configuration and monitoring.
How it could be exploited
An attacker with network access to a system running vulnerable DTMStudio could retrieve sensitive information without proper authentication. The specific attack mechanism is not detailed in available advisory text, but likely involves exploiting insufficient access controls on data handled by the application.
Prerequisites
  • Network access to the machine running DTMStudio
  • DTMStudio version before 1.5.151 installed and running
Information disclosureNo patch availableNo authentication required (likely)
Exploitability
Low exploit probability (EPSS 0.1%)
Affected products (1)
ProductAffected VersionsFix Status
DTMStudio: <1.5.151<1.5.151No fix (EOL)
Remediation & Mitigation
0/4
Do now
0/3
HARDENINGImplement network segmentation to restrict access to systems running DTMStudio to authorized engineering workstations only
WORKAROUNDDisable or isolate DTMStudio if it is not actively in use
HARDENINGApply firewall rules to limit connections to DTMStudio to known trusted IP addresses
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HARDENINGMonitor network traffic to DTMStudio systems for unauthorized access attempts
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API: /api/v1/advisories/b3c90a2a-0263-447b-80a8-3db7df506c8e