Secunia Security Advisory – Alfredo Ortega has reported a vulnerability in the mod_ctrls module for ProFTPD, which can be exploited by malicious, local users to gain escalated privileges.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/53003/sa23371.txt
Source: https://packetstormsecurity.com/files/53003/Secunia-Security-Advisory-23371.html