Fix #2347 - cookie attribute type
Fix #2347 - cookie attribute type

HTTP cookie as often stored on the web client and can be authentication
or even session cookie.

FloatingGhost/MISP,TheDr1ver/MISP,FloatingGhost/MISP,MISP/MISP,FIRSTdotorg/MISP,devnull-/MISP,FloatingGhost/MISP,MISP/MISP,devnull-/MISP,Rafiot/MISP,FIRSTdotorg/MISP,SteveClement/MISP,devnull-/MISP,TheDr1ver/MISP,Rafiot/MISP,FloatingGhost/MISP,TheDr1ver/MISP,SteveClement/MISP,Rafiot/MISP,TheDr1ver/MISP,MISP/MISP,FIRSTdotorg/MISP,devnull-/MISP,SteveClement/MISP,SteveClement/MISP,MISP/MISP,FIRSTdotorg/MISP,MISP/MISP,Rafiot/MISP,SteveClement/MISP