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Rockwell Automation PanelView 800

Act Now9.8ICS-CERT ICSA-23-131-14May 11, 2023
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

Rockwell Automation PanelView 800 operator interface devices contain buffer overflow (CWE-787) and out-of-bounds read (CWE-125) vulnerabilities in firmware versions 5.011 through 8.010. These vulnerabilities allow remote code execution without authentication or user interaction via network requests. No public exploits are currently known, but successful exploitation could allow an attacker to run arbitrary commands on the device with full system privileges.

What this means
What could happen
An attacker with network access to a PanelView 800 operator interface could execute arbitrary code remotely, allowing them to modify setpoints, stop processes, or alter plant operations without authentication or user interaction.
Who's at risk
Water and electric utilities operating Rockwell Automation PanelView 800 operator interface panels (specifically 2711R-T4T, 2711R-T7T, and 2711R-T10T models) used in process control and monitoring applications. Any organization using these touchscreen HMI devices for plant automation is affected.
How it could be exploited
An attacker sends a specially crafted network packet to the PanelView 800 device (likely via the web server or proprietary protocol), exploiting a buffer overflow or out-of-bounds read vulnerability to overwrite memory and inject malicious code that executes with device privileges.
Prerequisites
  • Network access to the PanelView 800 device on port 80, 443, or proprietary port
  • No credentials required
  • Device running affected firmware versions 5.011 through 8.010
Remotely exploitableNo authentication requiredLow complexity attackCritical CVSS score (9.8)Affects operator interface panels central to process controlDefault configuration leaves device vulnerable
Exploitability
Low exploit probability (EPSS 0.9%)
Affected products (3)
3 with fix
ProductAffected VersionsFix Status
PanelView 800-2711R-T4T: >= 5.011 | < 8.0115.011 | < 8.0118.011
PanelView 800-2711R-T7T: >= 5.011 | < 8.0115.011 | < 8.0118.011
PanelView 800-2711R-T10T: >= 5.011 | < 8.0115.011 | < 8.0118.011
Remediation & Mitigation
0/4
Do now
0/2
WORKAROUNDVerify the email feature is disabled on all PanelView 800 devices (default configuration)
HARDENINGRestrict network access to PanelView 800 devices using firewall rules; block all inbound traffic except from authorized engineering workstations and control system networks
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpgrade all PanelView 800 devices (2711R-T4T, 2711R-T7T, 2711R-T10T) to firmware version 8.011 or later
Long-term hardening
0/1
HARDENINGIsolate the control system network from the business network and the Internet using firewalls and network segmentation
View full CISA ICS-CERT advisory
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