The NCCIC has released an advisory on an improper authentication vulnerability in Siemens SIMATIC IT Production Suite. Numerous products and versions of these products are affected. Successful exploitation of this vulnerability could allow an attacker to compromise confidentiality, integrity and availability of the system. Siemens provides updates to address this vulnerability in these products and recommends users update to the new version. The NCCIC also recommends a series of defensive measures to minimize the risk of exploitation of these vulnerabilities. NCCIC/ICS-CERT.