Directory traversal vulnerability in IGSSdataServer.exe 9.00.00.11063 and earlier in 7-Technologies Interactive Graphical SCADA System (IGSS) allows remote attackers to (1) read (opcode 0x3) or (2) create or write (opcode 0x2) arbitrary files via ..\ (dot dot backslash) sequences to TCP port 12401.
http://www.vupen.com/english/advisories/2011/0741
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-080-03.pdf