Siemens Security Snafu: Unleashing Chaos with Hard-Coded Keys & DoS Delights!

Siemens’ gadgets have a case of ‘hard-coded key-itis’—it’s like having one password for everything (and forgetting it). Exploitable remotely with a CVSS v4 score of 5.1, it’s time to firewall-up and VPN-in, folks! #SiemensProductVulnerabilities

Hot Take:

It seems Siemens is putting the ‘hard’ in ‘hard-coded cryptographic keys’, and by ‘hard’, I mean ‘easy for hackers’. And if you thought your SCALANCE was just a fancy paperweight, wait till an attacker decides to test the ‘Uncontrolled Resource Consumption’ vulnerability. Who needs a denial-of-service attack when your device can deny service all by itself, right?

Key Points:

  • Siemens devices have vulnerabilities that are the digital equivalent of leaving your keys under the doormat.
  • These flaws could let attackers throw a wrench in the system, or steal your digital cookies from the cookie jar.
  • The affected products list is longer than your chances of winning the lottery.
  • Siemens is diligently patching things up, but in the meantime, they suggest a little digital fortress-building around your devices.
  • CISA is waving the caution flag and providing a playbook on how to avoid getting digitally dunked on.
Cve id: CVE-2023-44318
Cve state: PUBLISHED
Cve assigner short name: siemens
Cve date updated: 03/12/2024
Cve description: Affected devices use a hardcoded key to obfuscate the configuration backup that an administrator can export from the device. This could allow an authenticated attacker with administrative privileges or an attacker that obtains a configuration backup to extract configuration information from the exported file.

Cve id: CVE-2023-44321
Cve state: PUBLISHED
Cve assigner short name: siemens
Cve date updated: 03/12/2024
Cve description: Affected devices do not properly validate the length of inputs when performing certain configuration changes in the web interface allowing an authenticated attacker to cause a denial of service condition. The device needs to be restarted for the web interface to become available again.

Need to know more?

Every Device Has Its Flaws

Just when you thought your network was as secure as Fort Knox, along comes a vulnerability alert that makes you feel more like you're guarding a lemonade stand. The latest advisory is a bit like sending out an SOS for your SCALANCE devices, which are about as secure as a diary with a 'Keep Out' sticker.

The Digital Skeleton Key

Hard-coded keys are like leaving a key under the mat, but Siemens decided to leave it under a neon 'Welcome' sign. If you're lucky enough to have a configuration backup lying around, it might just become the hacker's treasure map to your network's nooks and crannies.

The DoS-tastic Adventure

Imagine being able to send a network device into a coma with a few well-placed inputs. That's right, the 'Uncontrolled Resource Consumption' is like a buffet for hackers, and they can eat until your device's web interface passes out from overconsumption.

The Long List of Woe

The list of affected Siemens products is so long, you might finish reading it just in time for the next vulnerability to be announced. It's less of a list and more of an epic tale titled 'The Neverending Vulnerability'.

Siemens to the Rescue (Sorta)

Siemens is on the case, crafting fixes with the urgency of a bomb squad defusing explosives. They're not quite there yet, but they've got some workaround shields you can deploy to keep the barbarians from the gate in the meantime.

CISA Says, "Don't Get Pwned"

CISA is doing its best teacher impression, handing out cybersecurity homework and telling you to do your part to keep the digital playground bully-free. They're providing tips, tricks, and strategies that might just keep you from being the weakest link. No promises, though.

Don't Be the Next Cyber Headline

While no one has yet waved a flag declaring they've hacked the planet using these vulnerabilities, CISA is like that one friend who's always a little too into disaster preparedness. They're saying it's better to be safe than sorry—or in this case, better to be secure than the subject of a cautionary tale at the next big cybersecurity conference.

Tags: critical infrastructure security, CVE-2023-44318, CVE-2023-44321, denial of service, industrial control systems, SCALANCE Devices, Siemens Vulnerabilities