If I were an evil person I would start a cable shop where I sell all kinds of cables. And based on who the customer is I would send them a real cable or one with a nice and free to them surprise extra payload.
Who is going to x-ray each and every cable they buy? And who keeps track of where they sourced what cable?
The parallel port (at least in it's later implementations) actually supports DMA - I'm sure that data exfiltration via the parallel port is hard, but probably not impossible...
The parallel port controller can DMA, that lets the driver tell the port hey, send this buffer out to the port and let me know or read this many bytes into this buffer and let me know. It's not peripheral controlled DMA like with firewire or PCI.
You can absolutely exfiltrate data via the parallel port... that's why you attach printers or zip disks... it's just that it needs host participation.
It’s almost certainly impossible on modern systems. The southbridge which allowed DMA to parallel port was absorbed into PCH and slowly stripped of legacy LCP support by chipset and motherboard manufacturers.
...trust me this is the best USB cord ever try it out for free, ill sell you some cheap if you get a couple friends to buy some.
https://shop.hak5.org/products/omg-cable
https://phreakboutique.com/blogs/tutorials/using-your-new-ev...
thats how the grift starts...
If I were an evil person I would start a cable shop where I sell all kinds of cables. And based on who the customer is I would send them a real cable or one with a nice and free to them surprise extra payload.
Who is going to x-ray each and every cable they buy? And who keeps track of where they sourced what cable?
That's it, I'm going back to parallel port cables for everything now.
The parallel port (at least in it's later implementations) actually supports DMA - I'm sure that data exfiltration via the parallel port is hard, but probably not impossible...
Nothing is safe, unfortunately!
The parallel port controller can DMA, that lets the driver tell the port hey, send this buffer out to the port and let me know or read this many bytes into this buffer and let me know. It's not peripheral controlled DMA like with firewire or PCI.
You can absolutely exfiltrate data via the parallel port... that's why you attach printers or zip disks... it's just that it needs host participation.
It’s almost certainly impossible on modern systems. The southbridge which allowed DMA to parallel port was absorbed into PCH and slowly stripped of legacy LCP support by chipset and motherboard manufacturers.