# Crawling/Spidering & Fuzzing

## Crawling/Spidering

**Crawling/Spidering** is the automatic process of exploring a website (navigating the different links on each page) to list all the resources encountered along the way and create a map of them.

`/robots.txt`, `/sitemap.xml`

<table><thead><tr><th width="160">Tools</th><th>Details</th></tr></thead><tbody><tr><td><a href="https://github.com/projectdiscovery/katana">katana</a></td><td>Crawling and Spidering<br><code>katana -u &#x3C;SITE1>,&#x3C;SITE2>,...</code></td></tr><tr><td><a href="https://academy.hackthebox.com/storage/modules/279/ReconSpider.zip">ReconSpider</a></td><td>HTB's Custom Scrapy Spider<br><code>pip3 install scrapy</code><br><code>python3 ReconSpider.py &#x3C;SITE></code>  <em>(results.json)</em></td></tr></tbody></table>

## Fuzzing

**Fuzzing** attempts to locate, through brute force, vhosts, subdomains, files, and hidden paths that are not directly accessible from the site.

### [ffuf](https://github.com/ffuf/ffuf)

{% tabs %}
{% tab title="Directory" %}
{% code overflow="wrap" %}

```bash
ffuf -ic -w <WORDLIST>:X -u <URL>/X
```

{% endcode %}

{% code overflow="wrap" %}

```bash
ffuf -ic -v -recursion -recursion-depth <N> -w <WORDLIST> -u <URL>/FUZZ
```

{% endcode %}
{% endtab %}

{% tab title="Extensions" %}
*Try on files like* `index` *based on Technology Stack.*

{% code overflow="wrap" %}

```bash
ffuf -ic -w <WORDLIST_EXTENSIONS>:FUZZ -u <URL>/indexFUZZ
```

{% endcode %}
{% endtab %}

{% tab title="Files" %}
*Try with extensions found.*

{% code overflow="wrap" %}

```bash
ffuf -ic -e <.EXT> -v -recursion -recursion-depth <N> -w <W> -u <URL>/FUZZ
```

{% endcode %}
{% endtab %}

{% tab title="GET/POST Param/Value" %}
{% code overflow="wrap" %}

```bash
ffuf -ic -w <WORDLIST>:X -u <URL>/?X=value
```

{% endcode %}

{% code overflow="wrap" %}

```bash
ffuf -ic -w <WORDLIST>:X -u <URL> -X POST -d ‘X=value’
```

{% endcode %}
{% endtab %}

{% tab title="API" %}
{% code overflow="wrap" %}

```bash
ffuf -ic -w <WORDLIST>:X -u <URL>/api/X
```

{% endcode %}

```bash
ffuf -ic -w <WORDLIST>:X -u <URL>/X/v1
ffuf -ic -w <WORDLIST>:X -u <URL>/X/v2
```

{% endtab %}
{% endtabs %}

With `-recursion` you cannot specify wordlist name, you have to use `FUZZ`.

### Other

<table><thead><tr><th width="165">Tools</th><th>Details</th></tr></thead><tbody><tr><td><a href="https://github.com/maurosoria/dirsearch">dirsearch</a></td><td><code>dirsearch -u &#x3C;SITE></code></td></tr><tr><td><a href="https://github.com/OJ/gobuster">gobuster</a></td><td><code>gobuster [dir/dns/fuzz/vhost/...] -h</code></td></tr><tr><td><a href="https://github.com/epi052/feroxbuster">feroxbuster</a></td><td><code>feroxbuster -u &#x3C;SITE></code></td></tr><tr><td><a href="https://github.com/irsdl/IIS-ShortName-Scanner">IIS-ShortName-Scanner</a></td><td><p>Scanners for IIS short filename (8.3) disclosure vulnerability (<a href="https://ubuntuhandbook.org/index.php/2022/03/install-jdk-18-ubuntu/">Install Oracle Java</a>). Short filename consisting in eight characters for the file name, a period, and three characters for the extension.</p><details><summary>ex</summary><p>In <code>SecretDocuments/</code> there are <code>somefile.txt</code> and <code>somefile1.txt</code><br><code>/secret~1/somefi~1.txt</code> for <code>somefile.txt</code> <br><code>/secret~1/somefi~2.txt</code> for <code>somefile1.txt</code></p></details><p><code>java -jar iis_shortname_scanner.jar 0 5 http://&#x3C;TARGET>/</code> <br>If does not permit <code>GET</code> access, brute-forcing of the remaining filename.<br><code>egrep -r ^&#x3C;START_STRING> /usr/share/wordlists/* | sed 's/^[^:]*://' > /tmp/list.txt</code> <br><code>gobuster dir -u http://&#x3C;TARGET>/ -w /tmp/list.txt -x .aspx,.asp</code></p></td></tr></tbody></table>


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