[tor-bugs] #22030 [Core Tor/Tor]: Exit Policy reject * does not reject IPv6 ports

Tor Bug Tracker & Wiki blackhole at torproject.org
Fri Apr 21 02:36:07 UTC 2017


#22030: Exit Policy reject * does not reject IPv6 ports
------------------------------+--------------------------------
     Reporter:  teor          |      Owner:
         Type:  defect        |     Status:  new
     Priority:  Medium        |  Milestone:  Tor: 0.3.2.x-final
    Component:  Core Tor/Tor  |    Version:  Tor: 0.2.9.9
     Severity:  Normal        |   Keywords:  ipv6, tor-exit
Actual Points:                |  Parent ID:
       Points:  1             |   Reviewer:
      Sponsor:                |
------------------------------+--------------------------------
 I have an exit policy that looks like this on a relay running tor-0.2.9.9:
 {{{
 ExitPolicy reject *:*
 ExitPolicy reject (IPv4 Blocks):*
 ExitPolicy reject (IPv6 Blocks):*
 ExitPolicy accept *:(Ports)
 ExitPolicy reject *:*
 ExitRelay 1
 IPv6Exit 1
 }}}

 Even though the policy starts with 'reject *:*', atlas reports that the
 accepted ports are allowed over IPv6. All ports are rejected over IPv4.

 This was a big surprise to me.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/22030>
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