this post was submitted on 30 Jan 2024
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the job was advertised as being remote.....
Well yes. You can code software remotely. That doesn't mean the end system is reachable through the network. Given it's DB, I bet these systems are still patched by floppy. Until very recently they've used floppy's to distribute train schedules to be displayed in the train.
The job might be remote, doesn't mean the system is remote. For all you or I know they want somebody to reverse engineer the protocol of this thing, which could be some weird board & driver that hooks into an old PC so they can switch it out for something else.
It's in the job description, remote access is available via a repurposed laparoscope robot and webcam placed in front of the original terminal keyboard and CRT
I think you are pulling my leg... But if that's true that's super cool.
A remote KVM through a portal would be the actual way an air gapped system would be accessed, yeah... Spoofing ps/2 or Din with a teensy would probably be needed to use new hardware for the KVM. Maybe a SFF PC with an analog input capture card...