Netcat - Execute Command and send return

Question

I'm trying to use netcat (the busybox version nc) to execute a command (devmem) on a remote machine and read the return on my local machine.

With

nc -ll -p [port] [IP] -e /bin/cat

i was able to echo my commands (devmem 0x12345678).

I tried

nc -ll -p [port] [IP] -e /bin/sh

, which didn't get me any response. (again sending "devmem 0x12345678" from my local machine)

Ultimately i want to be able to read/write memory on the remote machine from my local machine using nc and devmem.

James Schmu · Accepted Answer · 2019-05-07 11:29:52Z

2

Solved my Problem by using this small script:

#!/bin/sh
while true
    do
        /sbin/devmem $(read str; echo $str)
done

and then starting netcat with:

nc -ll -p [port] -w 10 [IP] -e /scriptfile

answered May 7, 2019 at 11:29

James Schmu

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