Posts

HTB Walkthrough - SolidState

Information Gathering

Scanned all TCP ports:

# connect to vpn
sudo openvpn htb_labs.ovpn

# save target IP as machine variable
export IP='10.10.10.51'

#initial nmap scan
nmap -sVC -p- --open -T4 -oN nmap/initial.nmap $IP

#nmap results
PORT     STATE SERVICE VERSION
22/tcp   open  ssh     OpenSSH 7.4p1 Debian 10+deb9u1 (protocol 2.0)
| ssh-hostkey:
|   2048 77:00:84:f5:78:b9:c7:d3:54:cf:71:2e:0d:52:6d:8b (RSA)
|   256 78:b8:3a:f6:60:19:06:91:f5:53:92:1d:3f:48:ed:53 (ECDSA)
|_  256 e4:45:e9:ed:07:4d:73:69:43:5a:12:70:9d:c4:af:76 (ED25519)
25/tcp   open  smtp    JAMES smtpd 2.3.2
|_smtp-commands: solidstate Hello nmap.scanme.org (10.10.14.24 [10.10.14.24])
80/tcp   open  http    Apache httpd 2.4.25 ((Debian))
|_http-title: Home - Solid State Security
|_http-server-header: Apache/2.4.25 (Debian)
110/tcp  open  pop3    JAMES pop3d 2.3.2
119/tcp  open  nntp    JAMES nntpd (posting ok)
4555/tcp open  rsip?
| fingerprint-strings:
|   GenericLines:
|     JAMES Remote Administration Tool 2.3.2
|     Please enter your login and password
|     Login id:
|     Password:
|     Login failed for
|_    Login id:

Enumeration

TCP Port 25 - SMTP

Posts

HTB Walkthrough - CozyHosting

Information Gathering

Scanned all TCP ports:

# save target IP as machine variable
export IP='10.10.11.230'

#initial nmap scan
nmap -Pn -sVC -v -p- --open -oN nmap/initial.nmap $IP

#nmap results
PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 8.9p1 Ubuntu 3ubuntu0.3 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey:
|   256 43:56:bc:a7:f2:ec:46:dd:c1:0f:83:30:4c:2c:aa:a8 (ECDSA)
|_  256 6f:7a:6c:3f:a6:8d:e2:75:95:d4:7b:71:ac:4f:7e:42 (ED25519)
80/tcp open  http    nginx 1.18.0 (Ubuntu)
| http-methods:
|_  Supported Methods: GET HEAD POST OPTIONS
|_http-server-header: nginx/1.18.0 (Ubuntu)
|_http-title: Did not follow redirect to http://cozyhosting.htb
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Enumeration

TCP Port 80 - HTTP

Posts

HTB Walkthrough - Brainfxck

Resolution summary

Identified open ports and services using nmap
Explored the HTTPS website, found alternate hostnames, and extracted an email address from the SSL certificate
Conducted a wpscan to identify WordPress users and vulnerabilities
Exploited a Privilege Escalation vulnerability giving us access to the WordPress admin dashboard
Found SMTP credentials in the Easy WP SMTP Settings and logged into the users mailbox
The mailbox contained credentials to the Super Secret Forum which I then gained access to
The forum had an encrypted thread that was deciphered and the location of an id_rsa file was revealed
The id_rsa file passphrase was cracked an initial access was gained
Retrieved the user.txt file and located an RSA encryption script called encrypt.sage that was encrypting the contents of the root.txt file
Used a Python script to decrypt the RSA encrypted content, and then converted and decoded the content to get the contents of the root.txt file.

Posts

HTB Walkthrough - Devvortex

Information Gathering

Scanned all TCP ports:

#nmap scan
nmap -sV -sC -v -p- -T4 -oN nmap/initial $IP --open

#nmap results
PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 8.2p1 Ubuntu 4ubuntu0.9 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey: 
|   3072 48:ad:d5:b8:3a:9f:bc:be:f7:e8:20:1e:f6:bf:de:ae (RSA)
|   256 b7:89:6c:0b:20:ed:49:b2:c1:86:7c:29:92:74:1c:1f (ECDSA)
|_  256 18:cd:9d:08:a6:21:a8:b8:b6:f7:9f:8d:40:51:54:fb (ED25519)
80/tcp open  http    nginx 1.18.0 (Ubuntu)
|_http-server-header: nginx/1.18.0 (Ubuntu)
|_http-title: Did not follow redirect to http://devvortex.htb/
| http-methods: 
|_  Supported Methods: GET HEAD POST OPTIONS
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Enumeration

TCP Port 80 - HTTP

Posts

HTB Walkthrough - Analytics

Information Gathering

Scanned all TCP ports:

#nmap scan
nmap -sV -sC -v -p- -oN nmap/initial $IP --open

#nmap results
PORT   STATE SERVICE VERSION
22/tcp open  ssh     OpenSSH 8.9p1 Ubuntu 3ubuntu0.4 (Ubuntu Linux; protocol 2.0)
| ssh-hostkey: 
|   256 3e:ea:45:4b:c5:d1:6d:6f:e2:d4:d1:3b:0a:3d:a9:4f (ECDSA)
|_  256 64:cc:75:de:4a:e6:a5:b4:73:eb:3f:1b:cf:b4:e3:94 (ED25519)
80/tcp open  http    nginx 1.18.0 (Ubuntu)
|_http-title: Did not follow redirect to http://analytical.htb/
| http-methods: 
|_  Supported Methods: GET HEAD POST OPTIONS
|_http-server-header: nginx/1.18.0 (Ubuntu)
Service Info: OS: Linux; CPE: cpe:/o:linux:linux_kernel

Enumeration

TCP Port 80 - HTTP

Posts

HTB Walkthrough - Sunday