recommended reading

Flaw Lets Hackers Control Electronic Highway Billboards

Traffic makes it's way toward downtown Los Angeles along the Hollywood Freeway past an electronic highway sign in February;

Traffic makes it's way toward downtown Los Angeles along the Hollywood Freeway past an electronic highway sign in February; // Richard Vogel/AP

The Homeland Security Department is cautioning transportation operators about a security hole in some electronic freeway billboards that could let hackers display bogus warnings to drivers. 

"The vulnerability is a hard-coded password that could allow unauthorized access to the highway sign," DHS officials said in an alert on Wednesday. [See update below.] Hard-coded passwords, sometimes called back doors, are default logins that software developers code into their programs. The vulnerability was identified in Daktronics Vanguard highway notification sign configuration software, officials said.

A "proof of concept" method to exploit the flaw has been made available, DHS officials warned. The Federal Highway Administration informed DHS of a public report of the vulnerability, Homeland Security officials said. 

Officials have notified the vendor to confirm the issue and figure out a fix. In the meantime, they are recommending users "review sign messaging," update passwords and secure communication paths to the signs.

Daktronics freeway signs "convey clear, effective messages to high-speed traffic," according to the company's website, which features a photo of a North Carolina Department of Transportation sign in Asheville stating a road is closed due to a rock slide. 

The DHS notice does not state whether all Daktronics highway signs or only certain models are vulnerable.

In recent days, attackers have hijacked road signs to warn California drivers, “Godzilla Attack – Turn Back," and inform North Carolina drivers about a “Hack by Sun Hacker.”

Daktronics officials declined to comment on whether their firm manufactured the signs that suffered breaches.

The company is working with DHS "to clarify the current alert and will release a statement once we have assessed the situation and developed customer recommendations," Daktronics spokeswoman Jody Huntimer said.

North Carolina officials also would not say whether their signs were made by Daktronics.

"We are continuing our investigation into the incident, and as such, respectfully decline to go into any details about that investigation," said David Ulmer, the chief information officer for the North Carolina Department of Transportation.

The hack in California involved a privately-owned sign that was being used to control traffic associated with an annual running event called Bay to Breakers, officials with the state of California said.

UPDATE: DHS late Thursday issued the following statement: "Daktronics reports that the password is not hardcoded as reported, but is a default password that can be changed upon installation."

Threatwatch Alert

Stolen laptop

Wireless Heart Monitor Maker to Pay $2.5M Settlement to HHS After Laptop Stolen

See threatwatch report

JOIN THE DISCUSSION

Close [ x ] More from Nextgov
 
 

Thank you for subscribing to newsletters from Nextgov.com.
We think these reports might interest you:

  • Modernizing IT for Mission Success

    Surveying Federal and Defense Leaders on Priorities and Challenges at the Tactical Edge

    Download
  • Communicating Innovation in Federal Government

    Federal Government spending on ‘obsolete technology’ continues to increase. Supporting the twin pillars of improved digital service delivery for citizens on the one hand, and the increasingly optimized and flexible working practices for federal employees on the other, are neither easy nor inexpensive tasks. This whitepaper explores how federal agencies can leverage the value of existing agency technology assets while offering IT leaders the ability to implement the kind of employee productivity, citizen service improvements and security demanded by federal oversight.

    Download
  • Effective Ransomware Response

    This whitepaper provides an overview and understanding of ransomware and how to successfully combat it.

    Download
  • Forecasting Cloud's Future

    Conversations with Federal, State, and Local Technology Leaders on Cloud-Driven Digital Transformation

    Download
  • IT Transformation Trends: Flash Storage as a Strategic IT Asset

    MIT Technology Review: Flash Storage As a Strategic IT Asset For the first time in decades, IT leaders now consider all-flash storage as a strategic IT asset. IT has become a new operating model that enables self-service with high performance, density and resiliency. It also offers the self-service agility of the public cloud combined with the security, performance, and cost-effectiveness of a private cloud. Download this MIT Technology Review paper to learn more about how all-flash storage is transforming the data center.

    Download

When you download a report, your information may be shared with the underwriters of that document.