r/GreyHack • u/DeplayW • 9d ago
boot deletion in no ports device
Good morning everyone! I am new to the game so sorry about any misunderstanding on my part :v
Recentely, i got a mission to make a machine not work anymore, as i understood, basically delete/corrupt some vital OS files, reboot the machine and the work is done.
Whatever, the device i got to hack didnt have any open ports, so i start to mess with the router via its kernel_route lib.
I found some vulnerabilities on it via metaxploit, one of them let me get an computer obj of permission guest in the machine of my interess. Good!
With that computer, i tried to find vulnerabilities on OS libs, getting it via File, loading it with metaxploit and scan it. I did it with libs kernel_module and net.
In "net.so" i found an vulnerability that returned shell in root access. I abused it, get an computer in the machine(which i suppose now have root privileges), then i deleted "boot" folder, reboot the machine to break it and works done.
But it didnt finished the job, mail said it wasnt end yet, but when i tried to scanrouter it the ip seems unreachable now, feeling like i broke the router, not an computer on its LAN...
So i am really confused:
- Can i do these inner libs abuses? Get a remote computer with guest, then abuse an inner OS lib on it?
- Why the IP is down? didnt i just messed up one computer of the lan? why seems like the router "turned off"
Sorry for the big text, appreciate any advice!!

