Secunia Security Advisory – Tan Chew Keong has reported a vulnerability in Null FTP Server, which can be exploited by malicious users to compromise a vulnerable system.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/72662/sa32999.txt
Source: https://packetstormsecurity.com/files/72662/Secunia-Security-Advisory-32999.html