PLC Security Flaw Unplugged: Protect Your Water with These Critical Mitigations!

“Unitronics’ PLCs score an 8.7 in password peek-a-boo, making hackers giggle as they remotely access your water systems. Time to play hide-and-not-seek with your network, folks!” (Focus keyphrase: “Unitronics’ PLCs”)

Hot Take:

Oh, the irony! A PLC that’s supposed to automate processes without a hitch is now the one needing an urgent manual override. With passwords hanging out in plaintext like laundry on a wire, it’s like Unitronics handed out skeleton keys to their Vision series PLCs. Welcome to the cybersecurity equivalent of an all-you-can-eat buffet for hackers!

Key Points:

  • Unitronics Vision PLCs are vulnerable to password pilferage, with a CVSS v4 score that screams “fix me now!”
  • These PLCs are essential to water and wastewater infrastructures worldwide, so no pressure.
  • If exploited, attackers could start, stop, and reset the PLCs like they’re playing an arcade game.
  • Unitronics seems to be playing hard to get, not responding to CISA’s flirty mitigation advances.
  • CISA’s love advice: Keep your PLCs away from the internet’s prying eyes and cuddle up behind a firewall.
Title: Unitronics Vision Standard Unauthenticated Password Retrieval
Cve id: CVE-2024-1480
Cve state: PUBLISHED
Cve assigner short name: Dragos
Cve date updated: 04/19/2024
Cve description: Unitronics Vision Standard line of controllers allow the Information Mode password to be retrieved without authentication.

Need to know more?

When PLCs Go Rogue

Remember the good old days when a PLC was just a reliable little box that controlled your industrial processes? Well, those days are gone. Now, they're more like ticking time bombs thanks to some genius decision to store passwords where even your grandma could find them. We're looking at you, Unitronics Vision series PLCs. And with a CVSS v4 score of 8.7, that's one spicy meatball of a vulnerability!

Worldwide Water Woes

It's not just any old sector that's been hit; it's water and wastewater. Yes, folks, the very essence of life is being threatened because of some plaintext passwords. And with these PLCs deployed worldwide, it's like we've handed out the keys to the planet's water supply. What's next? Will someone turn the oceans into a giant bubble bath?

Game Over for PLC Control

If hackers exploit this vulnerability, they could be stopping and starting PLCs like they're playing a round of Whack-A-Mole. Only this time, it's not a game, and the moles are critical infrastructure. It's like giving a toddler the remote control to your house's power supply. What could possibly go wrong?

Ghosting CISA

Unitronics is apparently too cool for school, ghosting CISA when they reached out to help. It's like they swiped left on cybersecurity. Meanwhile, CISA is standing outside with a boombox over its head, trying to win them back with promises of multi-factor VPNs and firewalls.

Don't Trust the Internet

CISA has turned into a concerned parent, telling everyone to minimize their PLCs' exposure to the internet's bad influences. They're advocating for the cybersecurity version of "stranger danger" by recommending firewalls and VPNs. But remember, VPNs are like that friend who says they won't let you down but sometimes does when you least expect it.

Phishing for Compliments

Finally, CISA is dropping some truth bombs about social engineering and phishing attacks. They're basically saying, "Don't take candy from strangers," but replace candy with email links. And if you spot something fishy, don't just stand there—report it! Be the hall monitor of the cyber world.

So far, it seems like cybercriminals haven't RSVP'd to this hacking party, as there are no reports of these vulnerabilities being exploited in the wild. But in the cyber world, it's always better to be the early bird who catches the worm, not the one who gets caught with its pants down when the worm turns.

Tags: Control Systems Security, CVSS Scoring, Cyber Risk Mitigation, industrial control systems, PLC Vulnerability, , Unitronics