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Re: [tor-bugs] #21756 [Applications/Tor Browser]: HTTP Authentication data is still sent to third parties with ESR 52 based Tor Browser
#21756: HTTP Authentication data is still sent to third parties with ESR 52 based
Tor Browser
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Reporter: gk | Owner: tbb-
| team
Type: defect | Status: new
Priority: High | Milestone:
Component: Applications/Tor Browser | Version:
Severity: Normal | Resolution:
Keywords: ff52-esr, tbb-7.0-must, | Actual Points:
TorBrowserTeam201703 |
Parent ID: | Points:
Reviewer: | Sponsor:
| Sponsor4
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Comment (by arthuredelstein):
In the #20680 branch, I dropped our #13900 patch because ESR52 is supposed
to isolate HTTP Auth by first party. There is an automated test in ESR52
from https://bugzilla.mozilla.org/1301523. So I think the http://ip-
check.info site is detecting that the HTTP Auth credentials are being
saved to the third party, but it isn't testing if these credentials are
shared by with first party.
I wrote a manual test and was able to confirm that first-party isolation
(double keying) is working. Here's the test:
First visit https://arthuredelstein.net/auth-test.html. It contains an
iframe located at `torpat.ch/auth`. Username is "username" and password is
"password". Once credentials are entered at the prompt, you can reload and
the credentials will be remembered such that no prompt is shown for a
second time.
Next visit https://torpat.ch/auth-test.html. It also has an iframe at the
same location. If double-keying is working correctly, the browser should
prompt again for username and password even though the third-party domain
is the same (torpat.ch).
Test source: https://github.com/arthuredelstein/auth-test
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/21756#comment:2>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
The Tor Project: anonymity online
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