Hardening ASP.NET against session fixation: Should I change the session ID despite the additional Auth cookie?

Situation

I am the responsible developer for an ASP.NET application that uses the “Membership” (username and password) authentication scheme. I am presented with the following report from a WebInspect scan:

WebInspect has found a sess… Continue reading Hardening ASP.NET against session fixation: Should I change the session ID despite the additional Auth cookie?