HackathonCTF:1 - Walkthrough [Vulnhub]

Here's my solution for HackathonCTF:1.
The machine can be downloaded from here.

Port Scanning
Using nmap to scan all TCP ports.
$ nmap -sC -sV -p- 192.168.1.106



We find 4 ports open.

Enumeration
Browsing the web.


 
From nmap's output we see that robot.txt file is present, lets check it out.


 
Down the page we see a base64 encode data, we decode it.



This seems like a hint- to brute force the ssh.

Using gobuster to scan the directories and also we include some file extensions
$ gobuster dir -u http://192.168.1.106/ -w /usr/share/wordlists/dirbuster/directory-list-2.3-medium.txt -x html,txt,php


Browsing /ftc.html.


 
Checking the source page.



We browse Cryptii to decode the decimal values.



Seems to be another hint- to use rockyou word list.

Browsing /sudo.html.



Checking the source page reveal a username- test.


 
Using hydra to brute force SSH.
$ hydra -l test -P /usr/share/wordlists/rockyou.txt 192.168.1.106 ssh -s 7223


We get the password as jordan23.

Initial Access
Accessing SSH.
$ ssh test@192.168.1.106 -p 7223
Password: jordan23



Privilege Escalation
Checking for SUDO rights.



Lets escalate to root.



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