TryHackMe - Mr. Robot CTF | Full Write-Up

The provided document outlines a comprehensive walkthrough of completing the "Mr. Robot" CTF challenge on TryHackMe. This guide details each step from initial reconnaissance through privilege escalation to root access, providing insights into various cybersecurity concepts and techniques. Below is a summary of key points and steps involved in this attack chain:

Initial Reconnaissance

1. robots.txt Disclosure: The walkthrough starts by identifying the presence of robots.txt, which often contains sensitive file paths or directories that should not be publicly disclosed.
2. Key 1 Discovery: By examining robots.txt, the first key is found, indicating a public file accessible through this method.

Identifying Vulnerabilities

1. WordPress Identification: Using gobuster for directory brute-forcing reveals the presence of WordPress on the target system.
2. Credential Enumeration and Cracking:
   • Username Enumeration: The error messages returned by the login page differ based on whether a username is invalid or if the password is incorrect, allowing enumeration of valid usernames.
   • Password Cracking: Once a valid username is identified, Hydra and a wordlist (e.g., fsocity.dic) are used to crack the password.

Exploitation

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