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Reconnaissance

First thing first, we run a quick initial nmap scan to see which ports are open and which services are running on those ports.

target="10.10.10.56"

ports=$(sudo nmap -p- --min-rate=1000 -T4 $target | grep "^[0-9]" | cut -d '/' -f 1 | tr '\\n' ',' | sed s/,$//)

sudo nmap -p$ports -sC -sV $target -vvv

PORT     STATE SERVICE REASON         VERSION
80/tcp   open  http    syn-ack ttl 63 Apache httpd 2.4.18 ((Ubuntu))
|_http-server-header: Apache/2.4.18 (Ubuntu)
| http-methods: 
|_  Supported Methods: POST OPTIONS GET HEAD
|_http-title: Site doesn't have a title (text/html).
2222/tcp open  ssh     syn-ack ttl 63 OpenSSH 7.2p2 Ubuntu 4ubuntu2.2 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey: 
|   2048 c4:f8:ad:e8:f8:04:77:de:cf:15:0d:63:0a:18:7e:49 (RSA)
| ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQD8ArTOHWzqhwcyAZWc2CmxfLmVVTwfLZf0zhCBREGCpS2WC3NhAKQ2zefCHCU8XTC8hY9ta5ocU+p7S52OGHlaG7HuA5Xlnihl1INNsMX7gpNcfQEYnyby+hjHWPLo4++fAyO/lB8NammyA13MzvJy8pxvB9gmCJhVPaFzG5yX6Ly8OIsvVDk+qVa5eLCIua1E7WGACUlmkEGljDvzOaBdogMQZ8TGBTqNZbShnFH1WsUxBtJNRtYfeeGjztKTQqqj4WD5atU8dqV/iwmTylpE7wdHZ+38ckuYL9dmUPLh4Li2ZgdY6XniVOBGthY5a2uJ2OFp2xe1WS9KvbYjJ/tH
|   256 22:8f:b1:97:bf:0f:17:08:fc:7e:2c:8f:e9:77:3a:48 (ECDSA)
| ecdsa-sha2-nistp256 AAAAE2VjZHNhLXNoYTItbmlzdHAyNTYAAAAIbmlzdHAyNTYAAABBBPiFJd2F35NPKIQxKMHrgPzVzoNHOJtTtM+zlwVfxzvcXPFFuQrOL7X6Mi9YQF9QRVJpwtmV9KAtWltmk3qm4oc=
|   256 e6:ac:27:a3:b5:a9:f1:12:3c:34:a5:5d:5b:eb:3d:e9 (ED25519)
|_ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIC/RjKhT/2YPlCgFQLx+gOXhC6W3A3raTzjlXQMT8Msk
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

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We get back the following result showing that two ports are open:

Similarly, we run an nmap scan with the -sU flag enabled to run a UDP scan.

sudo nmap -sU --open $target
sudo nmap -sU --open -p- $target

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Enumeration

Let’s enumerate more on the open ports. No particularly useful exploits seems to exists for OpenSSH and httpd versions.

We can visit the web page and obtain this:

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We can try to enumerate directories.

feroxbuster --url <http://10.10.10.56>

Unfortunately, that seems to not produce results.

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