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Alert (ICS-ALERT-11-286-01)

MICROSYS PROMOTIC Vulnerabilities

Original release date: October 13, 2011 | Last revised: August 23, 2018

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Summary

ICS-CERT is aware of a public report concerning three vulnerabilities with proof of concept (PoC) exploit code affecting MICROSYS, spol. s r.o. PROMOTIC, a supervisory control and data acquisition/human-machine interface (SCADA/HMI) product. According to this report, all three vulnerabilities are remotely exploitable. This report was released without coordination with either 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 initiate a coordinated process of validation and mitigation. ICS-CERT is issuing this alert to provide early notice of the reported vulnerabilities and identify baseline mitigations for reducing risks posed by these vulnerabilities.

The report included vulnerability details and PoC exploit code for the following vulnerabilities:

Vulnerability TypeExploitabilityImpact
Directory TraversalRemoteData leakage
Stack OverflowRemoteDenial of service / possible remote code execution
Heap OverflowRemoteDenial of service / possible remote code execution

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

Background

MICROSYS, spol. s r.o. is a Czech company with headquarters in Ostrava. PROMOTIC is SCADA HMI software that includes support for a web interface and is designed for Microsoft Windows.a

Follow-Up

ICS-CERT released a follow-up advisory, ICSA-12-024-01 - MICROSYS PROMOTIC Vulnerabilities, on the ICS-CERT Web site on January 24, 2012.

Mitigation

ICS-CERT is attempting to coordinate with the vendor and security researcher to identify effective mitigations.

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.b
  • 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), recognizing that VPN is only as secure as the connected devices.

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

The Control Systems Security Program (CSSP) 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.


Contact Information

For any questions related to this report, please contact the NCCIC at:

Email: NCCICCUSTOMERSERVICE@hq.dhs.gov
Toll Free: 1-888-282-0870

For industrial control systems cybersecurity information:  http://ics-cert.us-cert.gov 
or incident reporting:  https://ics-cert.us-cert.gov/Report-Incident?

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