Challenge Overview

Carrie, who is part of the company's sales team, has allegedly stolen a file of a confidential proposal for an important client, stored it in her pen drive, and prepared to sell across to the cybercriminal group for her monetary gains. This proposal contains the client's client's product roadmap for the next five years and is highly valuable to the company. You are working in the company as a Cyber Security Analyst and are a member of the special task force in charge of this case. Your task is to retrieve the encryption keys of files in the company-assigned system and stop Corporate Espionage by an insider. This challenge requires knowledge of web and Sudoer Loophole exploitation, network scanning skills, PHP File Upload and PHP Reverse Shell, SSH id-RSA Key Passphrase Cracking and credential attack, SSH cracking methods, and Sudo Shell Escaping. Demonstrate the use of Remote Code Execution and Base64 Encode. The target machine runs on a Linux Ubuntu OS with an IP address of 10.10.1.213.

What You Will Learn

  • Identifying open services and vulnerable web endpoints using tools like Nmap.
  • Exploiting insecure upload functionality to achieve remote code execution via a malicious PHP reverse shell.
  • Extracting and cracking an SSH private key passphrase to gain authenticated access.
  • Using compromised credentials to log into the system and further enumerate for escalation paths.
  • Abusing nano with improper sudo permissions to escape to a root shell.

Program Curriculum

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