Htb Skills Assessment - Web Fuzzing -

: The go-to tool for directory, page, parameter, and VHost fuzzing. : Specifically the common.txt wordlist (found at /usr/share/seclists/Discovery/Web-Content/ on Pwnbox) is vital for most tasks.

According to the module description, the skills assessment tests your ability to:

Brute-forcing, by contrast, is a more targeted approach that focuses on systematically trying many possibilities for a specific value, such as a password or an ID number. In the context of the skills assessment, you will primarily be doing a form of targeted brute-forcing—guessing directory names, file names, parameter names, and subdomains—rather than raw fuzzing with malformed data. However, the distinction is subtle, and the module treats them as overlapping techniques.

(Fuzz Faster U Fool) is the gold standard for HTB due to its speed and flexible filtering. Filtering is Key:

HTB often provides a small wordlist, but real success requires the SecLists repository. htb skills assessment - web fuzzing

Once you find a parameter like id , you need to find the right value. ffuf -w ids.txt -u http://target.htb -fr "Invalid ID" Use code with caution.

Once you find a hidden page, it may require specific parameters to function. You will use ffuf to discover both parameter names and their valid values.

: Hide common responses like 404 Not Found or 403 Forbidden .

ffuf -w /opt/useful/SecLists/Discovery/DNS/subdomains-top1million-5000.txt -u http://academy.htb -H "Host: FUZZ.academy.htb" -fs Use code with caution. : The go-to tool for directory, page, parameter,

-fs 1495 : This is the most important flag. It hides responses that have a specific byte size (like the default "404" or "Welcome" page), allowing the unique vhosts to pop up. Phase C: Parameter Fuzzing (GET/POST)

ffuf -w /path/to/wordlist/common.txt -u http://IP:PORT/FUZZ -e .php,.txt -recursion .

Alternatively, if you want to strictly fuzz the extension position:

ffuf -w /usr/share/wordlists/SecLists/Discovery/DNS/subdomains-top1million-5000.txt -u http:// : / -H "Host: FUZZ.target.htb" -fs Use code with caution. In the context of the skills assessment, you

Before starting, ensure you have a wordlist suitable for web fuzzing. The most commonly used wordlists on HTB come from the SecLists repository.

The primary objective of this assessment is to obtain the final flag (formatted as HTB... ) by systematically exploring the target space instead of blindly guessing. 🛠️ Essential Setup & Wordlists

ffuf -w subdomains.txt -u http:// : / -H 'Host: FUZZ.academy.htb' -fs

After discovering directories and vhosts, the next step is to fuzz for parameters. This is critical because parameters often control backend functionality, and hidden parameters can lead to vulnerabilities like SQL injection, command injection, or access control bypasses.

ffuf -w /usr/share/wordlists/SecLists/Usernames/Names/names.txt -u http:// : /admin/dashboard.php -X POST -d "username=FUZZ" -H "Content-Type: application/x-www-form-urlencoded" Use code with caution. Advanced Fuzzing Subdomains and Vhosts