Cookie dan sesi for ASP.NET

high5 checks

Session cookies are the keys to an account. Missing attributes turn a single XSS bug into full account takeover.

What ASP.NET must have

  • Secure attribute on every cookie
  • HttpOnly on session cookies
  • SameSite=Lax or Strict on session cookies
  • No session identifier in URLs or localStorage
  • Session rotation after login and logout invalidation

How to fix it

  1. 1Set cookie attributes at the framework level so every cookie inherits them
  2. 2Move tokens out of localStorage to HttpOnly cookies

ASP.NET context

Microsoft web framework running on IIS or Kestrel with the .NET runtime.

Watch ViewState MAC, elmah.axd/trace.axd exposure and outdated .NET Framework versions.