[tor-talk] Browserspy knows my computer time

Georg Koppen gk at torproject.org
Tue Jan 10 09:53:00 UTC 2017


Joe Btfsplk:
> How does Browserspy.dk get the correct local time & time zone from TBB
> 6.08 on my PC?
> I don't have any addons (other than default) and no plugins.  They'd
> have to get it somewhere else in TBB or Windows is leaking it?
> 
>  http://browserspy.dk/date.php  shows GMT offset of +0000 that TBB
> spoofs, & the current time in that zone.
> 
> Then has a line: "Locale String 1/9/2017, x:xx:xx AM (PM)," which was my
> computer clock's exact time.
> 
> Below that there's a string:  "Milliseconds since January 1, 1970" with
> a 13 digit number - milliseconds since Epoch (Unix).
> 
> Finally, it shows "Time on your PC," that was my computer clock's exact
> date and time.

I guess https://trac.torproject.org/projects/tor/ticket/20981 is a good
candidate for explaining this.

Georg


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