ProFTPD 'mod_copy' Arbitrary File Copy Vulnerability (Remote)
High Nessus Plugin ID 132749
Synopsis
It is possible for anonymous users to copy arbitrary files.
Description
The remote host is running ProFTPD. It is affected by a vulnerability in the mod_copy module which fails to honor <Limit READ> and <Limit WRITE> configurations as expected. An unauthenticated, remote attacker can exploit this, by using the mod_copy module's functionality, in order to copy arbitrary files in the FTP directory, provided that anonymous logins and mod_copy are enabled and the FTP directory is accessible from a web server. If a file exists in the FTP directory that contains PHP code but does not use the PHP extension, an attacker can copy this file to one with a PHP extension in order to execute code.
Solution
Upgrade to the latest version of ProFTPD.