The integrated HTTPS server in Siemens RuggedCom ROS before 3.12.2 allows remote authenticated users to bypass intended restrictions on administrative actions by leveraging access to a (1) guest or (2) operator account.
https://euvd.enisa.europa.eu/vulnerability/EUVD-2013-6727
http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-324789.pdf