Check_MK before 1.2.4p4 and 1.2.5 before 1.2.5i4 allows remote authenticated users to write check_mk config files (.mk files) to arbitrary locations via vectors related to row selections.
http://www.securityfocus.com/archive/1/533180/100/0/threaded
http://rhn.redhat.com/errata/RHSA-2015-1495.html
http://packetstormsecurity.com/files/127941/Deutsche-Telekom-CERT-Advisory-DTC-A-20140820-001.html