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Labs / Anonymous 2

  • Easy
  • Released 01 May 2024

🔓 Can you exploit the hidden backdoor in this FTP server?

A seemingly innocent FTP server harbors a dark secret - a malicious backdoor inserted by attackers who compromised the official distribution. The vulnerability lies dormant, waiting for the right trigger to unleash remote access. 🎯 Time to discover how compromised software can become your gateway to system control!

1
Flags
10
Points
Easy
Solution Available
Free Access
Start Lab Environment

Launch your dedicated AWS machine to begin hacking

~1-2 min setup
AWS dedicated
Private instance
Industry standard
Easy

🔓 FTP Server Backdoor Exploitation

This challenge focuses on exploiting a backdoor vulnerability in vsftpd 2.3.4, a popular FTP server that was compromised in 2011. You'll learn to identify and exploit backdoor vulnerabilities in network services.

🎯 What You'll Learn
  • ✓ FTP service enumeration
  • ✓ Backdoor vulnerability identification
  • ✓ Network service exploitation
  • ✓ Remote shell access techniques
  • ✓ Post-exploitation file system navigation
🔍 Challenge Overview

You'll encounter a vsftpd 2.3.4 server running on the target system. This version contains a malicious backdoor that was inserted by attackers who compromised the official distribution. The backdoor can be triggered through specific FTP commands.

Penetration Testing Context: Backdoor vulnerabilities in network services represent critical security risks. This challenge simulates real-world scenarios where compromised software distributions can provide attackers with persistent access to systems.