op5config/welcome in system-op5config before 2.0.3 in op5 Monitor and op5 Appliance before 5.5.3 allows remote attackers to execute arbitrary commands via shell metacharacters in the password parameter.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2012-0298
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