[tor-bugs] #2667 [Tor Relay]: Exits should block reentry into the tor network

Tor Bug Tracker & Wiki torproject-admin at torproject.org
Fri Dec 2 04:59:05 UTC 2011

#2667: Exits should block reentry into the tor network
 Reporter:  mikeperry  |          Owner:                    
     Type:  defect     |         Status:  new               
 Priority:  major      |      Milestone:  Tor: 0.2.3.x-final
Component:  Tor Relay  |        Version:                    
 Keywords:             |         Parent:  #2664             
   Points:             |   Actualpoints:                    

Comment(by rransom):

 Replying to [comment:8 arma]:

 > Also, I note that multihomed exits are another unhandled edge case here.

 Exits in the Amunet family have sent outbound traffic on an IP address
 which does not have an ORPort on it before.  They may still do that.

 But making bridges refuse connections from exits guarantees that bridges
 which require AUTHORIZE cells cannot perform automatic reachability tests
 until relays learn to EXTEND using bridge passwords.  And we don't really
 want a bridge to have to give away its password for that purpose.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/2667#comment:9>
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