When researchers search for an exploit related to vsftpd 2.0.8, they are typically looking for the "smileys" backdoor. While the specific CVEs for version 2.0.x generally revolve around memory corruption issues (like CVE-2004-0770), the most notorious discussion surrounding this specific version range involves a compromised source tarball.
If you are conducting authorized security testing, here are the most reliable and well-maintained exploit repositories as of this writing. vsftpd 2.0.8 exploit github
In the context of penetration testing (specifically Capture The Flag boxes like Metasploitable 2), the term "vsftpd 2.0.8 exploit" usually refers to the backdoor trigger present in version 2.3.4, though historical exploits for 2.0.8 exist in the form of buffer overflows. When researchers search for an exploit related to vsftpd 2
Simply connect to port 21:
netstat -tulpn | grep 6200 lsof -i :6200 In the context of penetration testing (specifically Capture