source: https://www.securityfocus.com/bid/9970/info It has been reported that the Nexgen FTP server is prone to a remote directory traversal vulnerability. This issue is due to a failure of the application to properly sanitize file request strings from authenticated users. Successful exploitation of this vulnerability may allow a remote attacker to gain access to sensitive information that may be used to launch further attacks against a vulnerable system. ls c:\*.* ls .. ls \..ls /../ dir c:dir \..\*.* get c:\"Exist File" [ c:\boot.ini ] get \..\"Exist File"