ICS-CERT Advisory 14-238-02 - Timur Yunusov, Ilya Karpov, Sergey Gordeychik, Alexey Osipov, and Dmitry Serebryannikov of the Positive Technologies Research Team have identified four vulnerabilities in the Schneider Electric Wonderware Information Server (WIS). Schneider Electric has produced an update that mitigates these vulnerabilities. Some of these vulnerabilities could be exploited remotely.
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