[tor-bugs] #6800 [Tor]: An attacker can flood network with new relays to make us stop using bwauth weights

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Oct 4 17:33:19 UTC 2015


#6800: An attacker can flood network with new relays to make us stop using bwauth
weights
------------------------------+-----------------------------------------
     Reporter:  arma          |      Owner:
         Type:  defect        |     Status:  needs_review
     Priority:  major         |  Milestone:  Tor: 0.2.8.x-final
    Component:  Tor           |    Version:  Tor: 0.2.7
   Resolution:                |   Keywords:  tor-relay, 027-triaged-1-in
Actual Points:                |  Parent ID:
       Points:  medium/large  |    Sponsor:  SponsorU
------------------------------+-----------------------------------------

Comment (by Sebastian):

 It seems to me like the real fix is on the bwauth side, where instead of
 saying "bail, we have less than 60% of relays measured" we should say
 "don't bail, we have less than 60% of relays measured but more than X% of
 relays measured that we can reasonably be expected to have measured by
 now"

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6800#comment:11>
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