OTPulse

Schneider Electric IIoT Monitor (Update A)

Plan PatchCVSS 9.3ICS-CERT ICSA-19-008-02Jan 8, 2019
Schneider ElectricEnergy
Attack path
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionRequired
Summary

Schneider Electric IIoT Monitor versions 3.1.38 and earlier contain critical vulnerabilities in file handling, path traversal, and XML parsing (CWE-22, CWE-434, CWE-611, CWE-326). These weaknesses allow remote code execution if a user is tricked into opening a malicious file or link. The vulnerabilities affect energy sector organizations using this monitoring application. No vendor patch is available; the product is end-of-life. Schneider Electric recommends migration to the latest software version and implementation of network isolation, access controls, and security best practices.

What this means
What could happen
An attacker could execute arbitrary code on the IIoT Monitor application, potentially allowing them to modify energy management data, disable monitoring alerts, or compromise the integrity of operational visibility across connected systems.
Who's at risk
Energy utilities and industrial facilities that use Schneider Electric IIoT Monitor for operational monitoring and control system visibility. The vulnerability affects deployments running version 3.1.38 and earlier, including legacy systems that may not have received updates.
How it could be exploited
An attacker sends a specially crafted file or network request that exploits path traversal (CWE-22), improper file upload handling (CWE-434), or XML external entity (CWE-611) vulnerabilities to the IIoT Monitor. If a user is tricked into opening a malicious file or visiting a malicious link, the attacker gains code execution on the monitoring system, allowing access to stored credentials and operational data.
Prerequisites
  • Network access to the IIoT Monitor application
  • User interaction required—victim must click a link or open a file
  • The IIoT Monitor version 3.1.38 or earlier installed
Remotely exploitable via network request or malicious fileRequires user interaction (social engineering)Low attack complexityNo patch available—end-of-life productAffects operational visibility and monitoring integrity
Exploitability
Some exploitation risk — EPSS score 2.3%
Affected products (1)
ProductAffected VersionsFix Status
IIoT Monitor:≤ 3.1.38No fix (EOL)
Remediation & Mitigation
0/6
Do now
0/4
HARDENINGIsolate the IIoT Monitor network behind a firewall, separate from business networks and the internet
HARDENINGRestrict physical access to the monitoring system and disable 'Program' mode on all controllers
WORKAROUNDScan all external media (USB drives, CDs) before connecting to the IIoT Monitor network
HARDENINGBlock all Internet access to the IIoT Monitor; require VPN with multi-factor authentication for any remote access
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXContact Schneider Electric customer support to migrate to the latest available software version
Mitigations - no patch available
0/1
IIoT Monitor: has reached End of Life. The vendor will not release a patch. Apply the following compensating controls:
HARDENINGImplement user security awareness training to prevent social engineering attacks targeting staff
View full CISA ICS-CERT advisory
API: /api/v1/advisories/a3cae522-debf-497d-8146-593265d916f5

Get OT security insights every Tuesday

Advisory breakdowns, a weekly summary, and incident analyses for the people actually defending OT environments. Free, no account required.

Schneider Electric IIoT Monitor (Update A) | CVSS 9.3 - OTPulse