Siemens SIMATIC WinCC OA before 3.12 P002 January allows remote attackers to cause a denial of service (monitoring-service outage) via malformed HTTP requests to port 4999.Referenceshttp://osvdb.org/102812https://exchange.xforce.ibmcloud.com/vulnerabilities/90936http://www.securityfocus.com/bid/65347http://www.siemens.com/innovation/pool/de/forschungsfelder/siemens_security_advisory_ssa-342587.pdfhttp://secunia.com/advisories/56651http://ics-cert.us-cert.gov/advisories/ICSA-14-035-01
