[tor-bugs] #4369 [Tor Relay]: I can send (almost) any cell I want before the VERSIONS or NETINFO cell

Wed Mar 28 06:01:52 UTC 2012

#4369: I can send (almost) any cell I want before the VERSIONS or NETINFO cell
------------------------------+---------------------------------------------
 Reporter:  arma              |          Owner:  nickm             
     Type:  defect            |         Status:  accepted          
 Priority:  normal            |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay         |        Version:  Tor: 0.2.2.34     
 Keywords:  spec-conformance  |         Parent:                    
   Points:                    |   Actualpoints:                    
------------------------------+---------------------------------------------

Comment(by nickm):

 Seems trivial to change the behavior to kill connections that send stuff
 before VERSIONS or NETINFO.  But we need to decide proposal 187 "Reserve a
 cell type to allow client authorization" before we do that.  I lean
 towards, "Accept 187, and kill connections that do disallowed stuff before
 AUTHORIZE/VERSIONS."

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/4369#comment:5>
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