Cookie dan sesi for OpenResty

high5 checks

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

What OpenResty 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

OpenResty context

Nginx bundled with LuaJIT for programmable edge logic.

Lua handlers execute per request; validate every header before using it in logic or logs.