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Explosion: Use xfreerdp to connect to the service

posted on 31.5.2023 by Below Surface in "Hack The Box"

Port scan first. Exchange ip with your machines IP address!

sudo nmap -sV ip

Relevant output:

PORT    STATE SERVICE      VERSION
135/tcp open msrpc        Microsoft Windows RPC
139/tcp open netbios-ssn  Microsoft Windows netbios-ssn
445/tcp open microsoft-ds?
3389/tcp open ms-wbt-server Microsoft Terminal Services
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Port 3389 is used for Windows Remote Desktops and Remote Assistance connections. The Remote Desktop Protocol (RDP) is used for that. We will use the tool xfreerdp to connect. We will use the guessed user name "Administrator" and just hit enter for the requested password.

xfreerdp /v:ip /cert:ignore /u:Administrator

Since this service is poorly configured, we succeed with our login and a Windows instance appears! The flag can be found on the desktop (flag.txt).

Tags:

hack the box

nmap

xfreerdp

rdp

remote desktop protocol

Sources:

https://app.hackthebox.com/starting-point

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