[tbb-bugs] #14098 [Tor Browser]: TBB still fingerprintable by screen size
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Sun Jan 25 23:11:52 UTC 2015
#14098: TBB still fingerprintable by screen size
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Reporter: cypherpunks | Owner: tbb-team
Type: defect | Status: new
Priority: normal | Milestone:
Component: Tor Browser | Version:
Resolution: | Keywords: tbb-fingerprinting
Actual Points: | Parent ID:
Points: |
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Comment (by randybytes):
Replying to [comment:6 mcs]:
>
> Access to properties within window.screen has been patched as well. Are
you seeing a case where window.screen leaks the actual display dimensions
or other info?
> Are you seeing a case where window.screen leaks the actual display
dimensions or other info?
Yes, on the Tor Browser bundle 4.03 with windows 8.1 leaks the actual
display dimensions:
On https://panopticlick.eff.org it leaks:
Screen Size and Color Depth: 1366x633x24
which only 1 in 82820.68 browsers have this value.
from the javascript console window.screen shows:
Screen { availWidth: 1366, availHeight: 383, width: 1366, height: 383,
colorDepth: 24, ...
Thanks for replying, is their any diagnostic information that could help?
--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/14098#comment:9>
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