: The backdoor was triggered by sending a username that contained the characters :) during an FTP login.
: You can also test for this vulnerability using the ftp-vsftpd-backdoor.nse script in Nmap. Why You Might See "2.0.8" metasploit-framework/modules/exploits/unix/ftp ... - GitHub vsftpd 208 exploit github link
: Several developers have rewritten the exploit in Python for manual testing, such as vsftpd-exploitation by David Lares or Vsftpd-2.3.4-Exploit . : The backdoor was triggered by sending a
In July 2011, the vsftpd source archive on its master site was replaced with a version containing a malicious backdoor. - GitHub : Several developers have rewritten the
: Any remote attacker could gain immediate root access to the host server without a password. GitHub Exploit Links & Resources
Because this vulnerability is frequently used in learning environments like Metasploitable 2, there are numerous implementations available on GitHub: