op5 Monitor and op5 Appliance before 5.5.0 do not properly manage session cookies, which allows remote attackers to have an unspecified impact via unspecified vectors.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-0300
https://bugs.op5.com/view.php?id=5094
http://www.op5.com/news/support-news/fixed-vulnerabilities-op5-monitor-op5-appliance/
http://www.ekelow.se/file_uploads/Advisories/ekelow-aid-2012-01.pdf