Planning

Reading Time: 2 min read

Start 17:50 10-07-2025

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Scope:
10.10.11.68

Creds:
admin / 0D5oT70Fq13EvB5r

Recon

Nmap

sudo nmap -sC -sV -sT -vvvv -p- -T5 --min-rate=5000 -Pn planning.htb

PORT   STATE SERVICE REASON  VERSION
22/tcp open  ssh     syn-ack OpenSSH 9.6p1 Ubuntu 3ubuntu13.11 (Ubuntu Linux; protocol 2.0)
80/tcp open  http    syn-ack nginx 1.24.0 (Ubuntu)
| http-methods:
|_  Supported Methods: GET HEAD POST
|_http-title: Edukate - Online Education Website
|_http-server-header: nginx/1.24.0 (Ubuntu)
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

No easy win.

80/TCP - HTTP

I ran a gobuster scan:

I then tried creating wordlists out of the found instructors, hoping that I could brute force it with the provided password.

None of these matched however:

Vhost

I then started enumerating vhosts using ffuf:

I went ahead and added it to my /etc/hosts:

I went ahead and input the creds and got in:

PoC

I then searched up whether there was any RCE exploit for the Grafana v11.0 version:

While this looked promising, I was not done yet.

By using the env command however I was able to find some juicy creds:

enzo
RioTecRANDEntANT!

Success!

Foothold

Shell as enzo

Time to get user.txt

user.txt

I then tried an easy win but unfortunately it didn’t work:

Privilege Escalation

Enumeration

I downloaded over linpeas.sh and started enumerating:

Well that sucks.

Let’s check the last one out.

Local Port Forward

I use the following command on ssh to port forward so I can access the 8000 port.

I use the found creds:

And I’m in.

I create a new cron job:

I start a listener and click on Run now:

root.txt

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Finished 20:04 10-07-2025