BACK TO NEWS
CERT AdvisoriesLow

Rockwell Automation ArmorStart LT Vulnerabilities Expose Industrial Systems to DoS Attacks

2 min readSource: CISA Cybersecurity Advisories

CISA warns of critical vulnerabilities in Rockwell Automation ArmorStart LT devices, enabling denial-of-service attacks on industrial control systems. Patch immediately.

Rockwell Automation ArmorStart LT Vulnerabilities Expose Industrial Systems to DoS Risks

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has disclosed multiple vulnerabilities in Rockwell Automation ArmorStart LT distributed motor controllers, which could allow threat actors to trigger denial-of-service (DoS) conditions on affected industrial control systems (ICS). The advisory, published as ICSA-26-029-02, highlights risks to operational technology (OT) environments.

Affected Products

The following versions of Rockwell Automation ArmorStart LT are vulnerable:

  • ArmorStart LT 290D (all versions)
  • ArmorStart LT 290E (all versions)

Technical Details

While CISA has not released full technical specifics, successful exploitation of these vulnerabilities could disrupt critical motor control operations in industrial settings. DoS attacks on ICS devices can lead to unplanned downtime, production halts, or safety risks in manufacturing, energy, and other OT-dependent sectors.

Rockwell Automation has not yet assigned CVE IDs to these vulnerabilities, but the advisory references a CSAF (Common Security Advisory Framework) document for structured vulnerability reporting.

Impact Analysis

  • Operational Disruption: DoS conditions could halt motor-driven processes, impacting production lines or critical infrastructure.
  • Safety Risks: Uncontrolled shutdowns of industrial equipment may pose physical safety hazards.
  • OT-Specific Threats: Attackers with network access to vulnerable devices could exploit these flaws without authentication.

Recommendations

CISA urges organizations using affected ArmorStart LT devices to:

  1. Apply Patches: Monitor Rockwell Automation’s official channels for firmware updates and apply them immediately upon release.
  2. Network Segmentation: Isolate OT networks from corporate IT environments to limit exposure.
  3. Access Controls: Restrict network access to ICS devices using firewalls, VLANs, and strict authentication policies.
  4. Monitor for Exploits: Deploy intrusion detection systems (IDS) to identify anomalous traffic targeting ArmorStart LT devices.

For further details, refer to the CISA advisory (ICSA-26-029-02) and the CSAF document.

Share

TwitterLinkedIn