xferlog_enable=YES vsftpd_log_file=/var/log/vsftpd.log
The mix-up arises from version string confusion. Some exploit scanners and vulnerability databases incorrectly reported the affected version as 2.0.8 (which is a legitimate, secure version) due to misconfigured banners or outdated CVE entries. Over time, "vsftpd 208 exploit" became a search term used by penetration testers and script kiddies alike. vsftpd 208 exploit github fix
Important fact: vsftpd 2.0.8 is not vulnerable. The vulnerable version is the backdoored 2.3.4. xferlog_enable=YES vsftpd_log_file=/var/log/vsftpd
| Step | Action |
|------|--------|
| 1 | Connects to port 21 (FTP) |
| 2 | Reads the server banner |
| 3 | Sends USER backdoor:) |
| 4 | Sends any password |
| 5 | Attempts a second connection to port 6200 |
| 6 | Runs arbitrary commands as root | The mix-up arises from version string confusion
Does this work today?
Only on unpatched, ancient systems (e.g., Ubuntu 8.04, Debian 5, or deliberately vulnerable VMs like Metasploitable 2). Modern Linux distributions were never vulnerable because they shipped the corrected vsftpd package.
vsftpd (Very Secure FTP Daemon) is a popular FTP server used on Linux and Unix-like systems. In 2011, a critical vulnerability was discovered in vsftpd 2.0.8, which allowed remote attackers to execute arbitrary code on the server. This guide provides steps to fix the exploit and prevent similar vulnerabilities.