Exploiting FTP on Metasploit 2

Introduction

• Overview of Metasploit 2

  • Intentionally vulnerable Linux virtual machine
  • Used for security training and testing security tools
  • Available for download on SourceForge (865 MB)

• Reminder: For educational purposes only; do not exploit machines without permission.

Setting Up Environment

• Running in VMware Workstation 17
• IP addresses of machines:
  • Kali Linux: 192.168.189.128
  • Metasploitable 2: 192.168.189.134
• Verify IP addresses with ifconfig command on each machine.

Network Discovery

• Use net discover to identify machines on the network.
• Identify target machine (Metasploitable 2).

Scanning the Target

• Use Nmap to scan the target for open ports:
  • Command: nmap -v -sT -sV -O -p 21 192.168.189.134
  • Results:
    • Port 21 (FTP) is open, using VSFTPD version 2.3.4
    • Operating system details provided

Exploiting FTP Vulnerabilities

• Nmap script scanning for FTP vulnerabilities:
  • Command: nmap -v -sT --script ftp-* -p 21 192.168.189.134
  • Found vulnerabilities:
    • CVE-2011-2523: FTP backdoor vulnerability
    • Allows anonymous FTP login
    • Brute-force attack success: valid user found (username: user)

Connecting to FTP

• Using Netcat to connect:

  • Command: nc -v 192.168.189.134 21
  • Attempt anonymous login:
    • Username: anonymous
    • Password: anonymous
  • Successful login due to exploitation of vulnerabilities.

• Also, try with valid credentials (user: user, password: user).

Finding Exploits

• Search for VSFTPD exploits on exploit database
• Found backdoor command execution exploit
• Download exploit script for execution on Kali Linux.

Executing the Exploit

• Open terminal and change to root: sudo su
• Use Python to execute the exploit:
  • Command: python3 exploit.py 192.168.189.134
  • Successful shell access to Metasploitable 2.

Verifying Access

• Use ifconfig to confirm access.
• Example command to demonstrate access: reboot
  • Shows control over the remote machine.

Conclusion

• Overview of how to exploit FTP vulnerabilities on Metasploitable 2 using Nmap and Python scripts.
• Reminder of ethical considerations when conducting penetration tests.

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Thank you for attending!