Schneider Electric Wonderware Information Server (WIS) Portal 4.0 SP1 through 5.5 uses weak encryption, which allows local users to obtain sensitive information by reading a credential file.
Credits
Timur Yunusov, Ilya Karpov, Sergey Gordeychik, Alexey Osipov, and Dmitry Serebryannikov of the Positive Technologies Research Team
