[tor-bugs] #32321 [Applications/Tor Browser]: https://mitmdetection.services.mozilla.com/ is contacted over catch-all circuit

["Tor Bug Tracker & Wiki" <blackhole@xxxxxxxxxxxxxx>]

#32321: https://mitmdetection.services.mozilla.com/ is contacted over catch-all
circuit
-------------------------------------+-------------------------------------
     Reporter:  gk                   |      Owner:  tbb-team
         Type:  defect               |     Status:  new
     Priority:  Medium               |  Milestone:
    Component:  Applications/Tor     |    Version:
  Browser                            |   Keywords:  tbb-9.0-issues,
     Severity:  Normal               |  tbb-9.0.1-can, tbb-linkability
Actual Points:                       |  Parent ID:
       Points:                       |   Reviewer:
      Sponsor:                       |
-------------------------------------+-------------------------------------
 If one triggers a MitM-warning (e.g. on https://mitm-software.badssl.com/)
 what seems to be a background request is sent over the catch-all circuit
 to https://mitmdetection.services.mozilla.com:
 {{{
 [10-25 07:50:12] Torbutton INFO: tor SOCKS:
 https://mitmdetection.services.mozilla.com/ via
 --unknown--:3c6a3286392291d7459b9e131ebc8f73
 }}}
 Either we properly do FPI here OR we just omit contacting Mozilla here at
 all (I think the latter sounds fine).

 [https://blog.torproject.org/comment/284916#comment-284916 Reported on our
 blog].

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/32321>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online

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