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Dictionary Attack

rest-api-security | Level: Easy  | Total Lab Runs: 0 | Premium Lab

Lab Scoreboard

Lab Walkthrough Video:


The REST API is running on the target machine. You have got hold of a valid username, which has the capability to query the API and fetch the data from it.

Objective:     

  • Find out the password for the provided username.
  • Use these credentials to interact with the REST API and find out the valid endpoint storing all the data.
  • Finally, retrieve the flag from the endpoint discovered in the previous step.

User Information:

Usernamedealer
Email
dealer@carsales.local

API Endpoints:

Endpoint
Description
Method
Parameter(s)
/auth/local
Authenticates the user and returns JWT authentication token
POST
identifier, password

Instructions: 

  • This lab is dedicated to you! No other users are on this network :) 
  • Once you start the lab, you will have access to a Ubuntu Terminal instance.
  • Your Ubuntu Instance has an interface with IP address 192.X.Y.2. Run "ifconfig" to know the values of X and Y.
  • The REST API should be running on port 1337 on the machine located at the IP address 192.X.Y.3.
  • Do not attack the gateway located at IP address 192.X.Y.1
  • The wordlists required for performing dictionary attacks are present in the home directory of the root user.


Dataset Source: https://www.kaggle.com/jingbinxu/sample-of-car-data


Verify:
1. Flag
 

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  • Using automated scanners
  • Using brute force attacks
  • Denial of Service attacks
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  • Attacking the lab infrastructure

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