Challenge Overview

A cybercrime group known as the QU4K3007 surfaced recently and has been actively attacking financial institutions sectors for monetary gains. Unfortunately, the bank you are working for received blackmail from QU4K3007 demanding a ransom of one million dollars. Your role as a Cybersecurity Analyst in the security department of the bank is to identify and exploit any potential vulnerabilities in the file system to test the readiness of the bank's infrastructure. This experience requires knowledge of NFS Hacking, service exploitation and system misconfiguration, red team methodologies, and demonstrating the use of privilege escalation and SUID. A target is a machine that runs on a Linux Ubuntu OS with an IP address of 10.10.1.43. The task is to obtain administrative privileges on the machine by performing various attack techniques.

What You Will Learn

  • Service enumeration and NFS exploitation, including identifying exposed NFS shares and mounting them to discover sensitive files such as SSH credentials.
  • Understanding file permission and filesystem misconfigurations, particularly how improperly secured NFS exports can leak authentication material.
  • Gaining initial access via SSH using harvested credentials, demonstrating proper attack chaining from network service abuse to system login.
  • Identifying and exploiting SUID misconfigurations, specifically abusing an SUID-enabled mv binary to manipulate protected system files.
  • Performing a high-impact privilege escalation attack, overwriting etc passwd with a modified entry containing a known root password to obtain full administrative access on the Ubuntu target (10.10.1.43).

Program Curriculum

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