[tbb-bugs] #24351 [Applications/Tor Browser]: Block Global Active Adversary Cloudflare

Tor Bug Tracker & Wiki blackhole at torproject.org
Sun Dec 31 08:26:28 UTC 2017

#24351: Block Global Active Adversary Cloudflare
 Reporter:  nullius                              |          Owner:  tbb-
                                                 |  team
     Type:  enhancement                          |         Status:
                                                 |  reopened
 Priority:  High                                 |      Milestone:
Component:  Applications/Tor Browser             |        Version:
 Severity:  Major                                |     Resolution:
 Keywords:  security, privacy, anonymity, mitm,  |  Actual Points:
  cloudflare                                     |
Parent ID:  #18361                               |         Points:
 Reviewer:                                       |        Sponsor:

Comment (by cypherpunks):

 > Medium
 > Cloudflare websites's title and favicon are changed, so the user can
 notice it.
 > (from add-on's settings: "Don't show warning message; just change title
 and favicon")
 >> I myself would want the option to either warn or block at this level.

 I think "warning" is enough for this "medium" level.
 "Block" is for the "High" level, just IMO.

 Next, what text should be added to TorButton's level description?

 > Tor Browser Security Settings
 > Low: (not changed)
 > Medium: "The title and icon is changed in MITM proxied websites."
 > High: "MITM proxied websites are blocked. Whitelist is not permanent."


 > if nobody noticed that in the past few years, then very few people
 > (including TBB devs) ever surf with the slider on “High”.

 Wikipedia's math webpage, right? I know and I don't care about it.
 I use TorButton's high level all the time, and the level descrption
 clearly states:

 "Some font rendering features are disabled"

 It's a trade-off. Or maybe someone can fix it.

Ticket URL: <https://trac.torproject.org/projects/tor/ticket/24351#comment:47>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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