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Tag: rce

HigherLogic Community RCE Vulnerability

We initially became interested in the __VSTATE parameter after reading this article by graanl which we saw after reading this article from The Record about an APT group exploiting how it works. What is a ViewState? A ViewState is a parameter that contains information about the state of a users session, eg. are they logged in, who are they logged in as, what settings have they changed. In .NET this is in the form of a serialized .