Opened 11 years ago

Closed 4 years ago

#1288 closed defect (worksforme)

Changing time while TOR is running causes endless new connections to be added

Reported by: torbugtime Owned by:
Priority: Low Milestone: Tor: unspecified
Component: Core Tor/Tor Version:
Severity: Normal Keywords: tor-client
Cc: nickm, arma, Sebastian, phobos Actual Points:
Parent ID: Points:
Reviewer: Sponsor:

Description (last modified by nickm)

Windows XP SP2
Vidalia 0.2.6
Qt 4.5.2
Running TOR as client
No changes in Tor's torrc
Running TOR in English

1) Launch TOR
2) Wait for TOR to establish connections (icon turns green)
2) Open Date and Time Properties (bottom-right of Windows desktop)
3) Reduce/increase time by a few hours
4) Connections start to increase endlessly
5) Adjust Time back to original time
6) Extra connections immediately close and disappear, TOR returns to normal number of connections

Reason to do this is that, as I understand it, when javascript is enabled the webpage can detect your time zone, so I try to scramble that before I visit a website in which I want javascript to work.

I will check back on this webpage every few days, in case there are any questions.

[Automatically added by flyspray2trac: Operating System: Windows 2k/XP]

Child Tickets

Change History (7)

comment:1 Changed 11 years ago by torbugtime

Image added by same person that created this thread.

comment:2 Changed 11 years ago by torbugtime

Update on when bug occurs.

Between steps 3) and 4) in my initial post, do the following:

3.1) Open Firefox.
3.2) Select Tools > Add-ons
3.3) [Maybe] Select Extensions and/or Themes [or maybe just by opening up Add-ons is good enough]

This might be the only way the bug manifests, or it might be a second manner in which it manifests. I'm inclined to believe it's the only way. I'm using Firefox 3.6 and TorButton 1.2.4. Obviously TorButton is turned on while doing this.

comment:3 Changed 11 years ago by torbugtime

I said:

"can detect your time zone"

I meant time, not time zone. All my instructions are about changing your time, not your time zone.

PS: can webpages detect your timezone, also, or only your time?

comment:4 Changed 10 years ago by nickm

Description: modified (diff)
Milestone: Tor: unspecified

moving to "tor: unspecified" milestone. It's normal for tor to drop and reopen all its circuits when the time jumps a lot; this is how Tor normally detects coming out of hibernation. Having "endless" connections would indeed be weird; is that actually happening, or is that just in the bug summary?

Using torbutton should be adequate to keep websites from fingerprinting timezones.

Is there a remaining bug here?

comment:5 Changed 8 years ago by nickm

Keywords: tor-client added

comment:6 Changed 8 years ago by nickm

Component: Tor ClientTor

comment:7 Changed 4 years ago by nickm

Cc: nickm,arma,Sebastian,phobosnickm, arma, Sebastian, phobos
Resolution: Noneworksforme
Severity: Normal
Status: newclosed
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