U.S. Flag Official website of the Department of Homeland Security

Alert (ICS-ALERT-14-155-01A)

Daktronics Vanguard Default Credentials (Update A)

Original release date: June 05, 2014 | Last revised: June 06, 2014

Legal Notice

All information products included in http://ics-cert.us-cert.gov are provided "as is" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see http://www.us-cert.gov/tlp/.



SUMMARY

This alert update is a follow-up to the original NCCIC/ICS-CERT Alert titled ICS-ALERT-14-155-01 Daktronics Vanguard Hardcoded Credentials that was published June 4, 2014, on the ICS-CERT web page.

--------- Begin Update A Part 1 of 2 --------

ICS-CERT is aware of a public report of a hardcoded password vulnerability affecting Daktronics Vanguard highway dynamic message sign (DMS) configuration software. According to this report, the vulnerability is a hardcoded password that could allow unauthorized access to the highway sign. This report was reported to ICS-CERT by the Federal Highway Administration. ICS-CERT has notified the affected vendor of the report and has asked the vendor to confirm the vulnerability and identify mitigations. Daktronics reports that the password is not hardcoded as reported, but is a default password that can be changed upon installation. 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.

Proof of Concept is known to be publicly available. ICS-CERT recommends entities review sign messaging, update access credentials, and harden communication paths to the signs.

Vulnerability TypeRemotely ExploitableImpact
Default credentialsYesModification of sign text

--------- End Update A Part 1 of 2----------

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

MITIGATION

--------- Begin Update A Part 2 of 2 --------

ICS-CERT is currently coordinating with the Daktronics and the Federal Highway Administration to identify mitigations.

Daktronics and the Federal Highway Administration recommend the following:

  • Displays should not be on publicly accessible IP addresses. Placing a display on a private network or VPN helps mitigate the lack of security,
  • Disable the telnet, webpage, and web LCD interfaces when not needed, and
  • Change the default password to a strong password as soon as possible on all installed devices.

--------- End Update A Part 2 of 2----------

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 and/or systems, and ensure that they are not accessible from the Internet.a
  • Locate system networks and devices behind firewalls, and isolate them from the business network.
  • When remote access is required, use secure methods, such as Virtual Private Networks (VPNs), recognizing that VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize 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.

ICS-CERT also provides a recommended practices section for control systems on the ICS-CERT web site (http://ics-cert.us-cert.gov). 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 ICS-CERT at:

Email: ics-cert@hq.dhs.gov
Toll Free: 1-877-776-7585
International Callers: (208) 526-0900

For industrial control systems security information and incident reporting: http://ics-cert.us-cert.gov

ICS-CERT continuously strives to improve its products and services. You can help by choosing one of the links below to provide feedback about this product.

Was this document helpful?  Yes  |  Somewhat  |  No

Back to Top