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VID 16004
Severity 40
Port 21
Protocol TCP
Class FTP
Detailed Description The anonymous FTP server has a writable home directory.
It is usually a bad idea to have world writable directories in a public FTP server, since it may allow anyone to use the FTP server as a 'warez' server (this means that the FTP server will be used to exchange copyrighted software between software pirates). It may also allow anyone to make a denial of service by filling up the hard disk.
And If the anonymous FTP server is an UNIX machine, an attacker can compromise the FTP server using r-commands or sendmail by making properly .rhosts and .forward files.

* References:
http://ciac.llnl.gov/ciac/bulletins/d-19.shtml
http://www.iss.net/security_center/static/53.php
Recommendation Remove root directory write permissions
Related URL CVE-1999-0527 (CVE)
Related URL (SecurityFocus)
Related URL (ISS)