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Rockwell Automation Stratix Devices Containing Cisco IOS

Plan Patch8.8ICS-CERT ICSA-22-300-03Oct 27, 2022
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

Rockwell Automation Stratix network switches contain multiple vulnerabilities in embedded Cisco IOS that could allow code execution and denial-of-service. The vulnerabilities stem from improper input validation, weak authentication handling, and path traversal flaws (CWE-863, CWE-20, CWE-22). Stratix 5800 switches running firmware prior to v17.04.01 are vulnerable to all identified flaws. Stratix 5400/5410 switches running firmware prior to v15.2(7)E2 are vulnerable to CVE-2020-3200. No public exploit code is currently available.

What this means
What could happen
An attacker with network access could execute code on Stratix switches or cause them to stop functioning, disrupting network connectivity for control systems in water treatment plants, power generation, or substations.
Who's at risk
Water utilities, electric utilities, and other critical infrastructure operators using Rockwell Automation Stratix 5400, 5410, or 5800 network switches for control system connectivity are affected. Stratix switches provide Layer 2/Layer 3 connectivity for PLCs, RTUs, and field devices in SCADA and distributed control systems.
How it could be exploited
An attacker with valid network credentials and access to the switch management interface could exploit authentication or input validation flaws in Cisco IOS to run arbitrary commands or crash the device, potentially isolating control system networks.
Prerequisites
  • Network access to the Stratix device management interface (SSH, Telnet, or HTTP)
  • Valid user credentials for device authentication
  • Device running vulnerable Cisco IOS firmware version
remotely exploitablerequires valid credentialsaffects network infrastructure serving safety systemslow exploit probability (EPSS 1.3%)
Exploitability
Moderate exploit probability (EPSS 1.3%)
Affected products (2)
2 pending
ProductAffected VersionsFix Status
Rockwell Automation Stratix Devices: <16.12.01<16.12.01No fix yet
Rockwell Automation Stratix Devices: <15.2{7}E2<15.2{7}E2No fix yet
Remediation & Mitigation
0/5
Do now
0/1
WORKAROUNDRestrict network access to Stratix device management interfaces using firewall rules or access control lists
Schedule — requires maintenance window
0/3

Patching may require device reboot — plan for process interruption

HOTFIXUpdate Stratix 5800 switches to firmware v17.04.01 or later
HOTFIXUpdate Stratix 5400/5410 switches to firmware v15.2(7)E2 or later for CVE-2020-3200
HARDENINGDisable unnecessary management protocols (Telnet, HTTP) and use SSH only for remote access
Long-term hardening
0/1
HARDENINGSegment control system networks from business networks and ensure switches are not reachable from the Internet
View full CISA ICS-CERT advisory
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Rockwell Automation Stratix Devices Containing Cisco IOS | CVSS 8.8 - OTPulse