I apologize for this naive question-
I am looking at the cas client code (AuthenticationFilter.java) and I see that 
if 
1. a ticket doesn't exist AND
2. CONST_CAS_ASSERTION is not defined in the session AND
3. CONST_CAS_GATEWAY is not defined
then, the request is redirected to the cas server. What happens if someone 
somehow sets a bogus ticket such that it appears that a ticket really exists? 
Is something like this even possible? I mean, can one add a ticket to the 
request from the middle of the network/client side such that 
HttpServletRequest.getParameter("ticket") returns the bogus ticket when cas 
client tries to get the "ticket" parameter from the request?
Thanks for your time.


      
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