Progea Movicon PowerHMI Vulnerabilities

This September 2011 alert describes

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SUMMARY

ICS-CERT is aware of a public report of three vulnerabilities with proof of concept (POC) exploit code affecting Progea Movicon PowerHMI Version 11, a SCADA/HMI Product. The report was released without coordination with the vendor or ICS-CERT.

ICS-CERT has not yet verified the vulnerabilities or POC code, but has reached out to the affected vendor to notify, confirm, and identify mitigations. ICS-CERT is issuing this alert to provide early notice of the report and identify baseline mitigations for reducing risks to these and other cybersecurity attacks.

The public report included vulnerability details and proof of concept exploit code for the following vulnerabilities:

Please report any issues affecting control systems in critical infrastructure environments to ICS-CERT.

BACKGROUND

Movicon 11 is a HMI (Human Machine Interface) development system that uses a web-enabled architecture based on JAVA, including drivers for programmable logic controllers (PLCs). PowerHMI Version 11 is based on SCADA HMI Movicon Version 11.

Movicon is used primarily in Italy with a small percentage of installations in other European countries.

MITIGATION

ICS-CERT recommends that users take defensive measures to minimize the risk of exploitation of these vulnerabilities. Specifically, users should:

• Minimize network exposure for all control system devices. Control system devices should not directly face the Internet.1
• Locate control system networks and devices behind firewalls, and isolate them from the business  network.
• If remote access is required, employ secure methods such as Virtual Private Networks (VPNs).

ICS-CERT reminds organizations to perform proper impact analysis and risk assessment prior to taking defensive measures.

The Control System Security Program also provides a recommended practices section for control systems on the US-CERT website. Several recommended practices are available for reading or download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.

Organizations that observe any suspected malicious activity should follow their established internal procedures and report their findings to ICS-CERT for tracking and correlation against other incidents.

FOLLOW-UP

ICS-CERT published a follow-up advisory title ICSA-11-294-01 - Progea Movicon PowerHMI Vunlerabilities to the ICS-CERT Web page on October 20, 2011.

• 1. ICS-CERT ALERT, http://www.us-cert.gov/control_systems/pdf/ICS-Alert-10-301-01.pdf, accessed September 13, 2011.