ncftp versions 3.1.6/120 and 3.1.7/120 do not hash passwords under certain conditions allowing for their leakage via simple utilities like ps.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/33158/ncFTP317.txt
Source: https://packetstormsecurity.com/files/33158/ncFTP317.txt.html