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The CUPS explout is here: GitHub - RickdeJager/cupshax

github.com

GitHub - RickdeJager/cupshax

cross-posted from: https://lemmy.zip/post/23601247

I hope this goes without saying but please do not run this on machines you don't own.

The good news:

  • the exploit seems to require user action

The bad news:

  • Device Firewalls are ineffective against this
  • if someone created a malicious printer on a local network like a library they could create serious issues
  • it is hard to patch without breaking printing
  • it is very easy to create printers that look legit
  • even if you don't hit print the cups user agent can reveal lots of information. This may be blocked at the Firewall

TLDR: you should be careful hitting print

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