[tor-bugs] #12975 [Tor Browser]: Ensure NTLMv2 is still disabled (was: Keep an eye on NTLMv2. Possibly disable it.)

Tor Bug Tracker & Wiki blackhole at torproject.org
Thu Jul 23 03:30:15 UTC 2015


#12975: Ensure NTLMv2 is still disabled
-------------------------+-------------------------------------------------
     Reporter:           |      Owner:  mikeperry
  mikeperry              |     Status:  closed
         Type:  task     |  Milestone:
     Priority:  major    |    Version:
    Component:  Tor      |   Keywords:  ff38-esr, TorBrowserTeam201507,
  Browser                |  tbb-5.0a4, MikePerry201507
   Resolution:  fixed    |  Parent ID:
Actual Points:           |
       Points:           |
-------------------------+-------------------------------------------------
Changes (by mikeperry):

 * status:  assigned => closed
 * resolution:   => fixed


Comment:

 It appears as though our patch continues to disable NTLMv2 auth. The
 commit for the bug in question only adds packet parsing and construction
 for NTLMv2, and our patch disables it before we even get to that point.
 https://hg.mozilla.org/mozilla-central/rev/f09bfc814171

 Related, the patch to prevent info disclosures still has not landed:
 https://bugzilla.mozilla.org/show_bug.cgi?id=1046421.

 My recommendation is that we should always leave NTLM off. I am deeply
 worried about stuff like #11055 and Windows-specific leaks biting us.
 Closing this.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/12975#comment:6>
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