eWON devices with firmware before 10.1s0 omit RBAC for I/O server information and status requests, which allows remote attackers to obtain sensitive information via an unspecified URL.
https://ics-cert.us-cert.gov/advisories/ICSA-15-351-03
http://www.securityfocus.com/bid/79625
http://seclists.org/fulldisclosure/2015/Dec/118
http://packetstormsecurity.com/files/135069/eWON-XSS-CSRF-Session-Management-RBAC-Issues.html
http://ewon.biz/support/news/support/ewon-security-enhancement-7529-01