[tbb-bugs] #17558 [Tor Browser]: Copying from clipboard is dangerous

[Tor Bug Tracker & Wiki]

#17558: Copying from clipboard is dangerous
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     Reporter:  cypherpunks  |      Owner:  tbb-team
         Type:  defect       |     Status:  new
     Priority:  Medium       |  Milestone:
    Component:  Tor Browser  |    Version:
     Severity:  Major        |   Keywords:
Actual Points:               |  Parent ID:
       Points:               |    Sponsor:
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 Let's consider a simple scenario
 1 user copies a text from a website
 2 user pastes it into a msword document
 3.1 the text has a transparent img in it, when the user pastes it into
 msword, msword loads the img from network, deanonimizing the user.
 or
 3.2 the text has a transparent swf in it, when the user copies it, the
 clipboard logger application understands it is a html tryes to render, in
 order to do it it loads MSIE engine which loads flash plugin which
 executes swf which collects and sends sensitive data.


 TorBrowser must sanitize the info transferred to/from clipboard removing
 all the content available from the network and all the active content
 (scripts, swfs, applets, etc).

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/17558>
Tor Bug Tracker & Wiki <https://trac.torproject.org/>
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