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Re: HTML mail

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On 2019-07-11 15:25, Andrei POPESCU wrote:
> On Jo, 11 iul 19, 12:31:07, John Crawley wrote:
>> ...user agents that could deal with html in some sane way, and without
>> exposing the recipient to attacks. Simply not following any web links would
>> be enough I'd have thought? Or are there some more subtle attack paths?
> 
> Yes, look up the EFAIL vulnerability (I posted a link in another
> message). It enabled a potential attacker to trick e-mail clients
> parsing html e-mail to decrypt an (old) encrypted message.
> 
> In most cases users only had to open the message.
Since enforcing no-html, and particularly no-malevolent-html on all 
incoming mail is not an option available to us, the only remaining 
choices for a "good" MUA would then be:
A) Display html as-is, tags and all
B) Strip out the tags and display what's left, like html2text

I think B) is the better option.

-- 
John

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Re: chromebook Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-09 19:00 +0200
  Re: chromebook Dan Purgert <dan@djph.net> - 2019-07-10 02:20 +0200
  Re: chromebook John Crawley <john@bunsenlabs.org> - 2019-07-10 03:40 +0200
    Re: chromebook Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-10 06:30 +0200
      Re: chromebook Joe <joe@jretrading.com> - 2019-07-10 09:20 +0200
      Re: chromebook <tomas@tuxteam.de> - 2019-07-10 09:30 +0200
        Re: chromebook Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-10 22:00 +0200
    Re: chromebook Reco <recoverym4n@enotuniq.net> - 2019-07-10 08:40 +0200
      Re: chromebook Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-10 15:10 +0200
        Re: mutt vs HTML (was: chromebook) Reco <recoverym4n@enotuniq.net> - 2019-07-10 16:10 +0200
      Re: HTML mail (was: chromebook) John Crawley <john@bunsenlabs.org> - 2019-07-11 05:50 +0200
        Re: HTML mail (was: chromebook) Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-11 08:30 +0200
          Re: HTML mail John Crawley <john@bunsenlabs.org> - 2019-07-11 09:00 +0200
            Re: HTML mail Gene Heskett <gheskett@shentel.net> - 2019-07-11 09:20 +0200
            Re: HTML mail Andrei POPESCU <andreimpopescu@gmail.com> - 2019-07-11 09:20 +0200
              Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 10:10 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 11:20 +0200
                Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 11:40 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 16:00 +0200
                Re: HTML mail Greg Wooledge <wooledg@eeg.ccf.org> - 2019-07-11 16:10 +0200
                Re: HTML mail Dan Purgert <dan@djph.net> - 2019-07-11 19:00 +0200
                Re: HTML mail Carl Fink <carl@finknetwork.com> - 2019-07-11 20:20 +0200
                Re: HTML mail John Hasler <jhasler@newsguy.com> - 2019-07-11 14:30 +0200
                Re: HTML mail <tomas@tuxteam.de> - 2019-07-11 14:50 +0200
                Re: HTML mail Gene Heskett <gheskett@shentel.net> - 2019-07-11 18:00 +0200
                Re: HTML mail Thomas D Dial <tdial@acm.org> - 2019-07-11 21:30 +0200
                Re: HTML mail tomas@tuxteam.de - 2019-07-12 09:30 +0200
                Re: HTML mail Brad Rogers <brad@fineby.me.uk> - 2019-07-11 16:00 +0200
                Re: HTML mail David Wright <deblis@lionunicorn.co.uk> - 2019-07-11 17:20 +0200
              Re: HTML mail John Crawley <john@bunsenlabs.org> - 2019-07-11 13:20 +0200
  Re: chromebook Kenneth Parker <sea7kenp@gmail.com> - 2019-07-11 04:40 +0200
    Re: chromebook <tomas@tuxteam.de> - 2019-07-11 10:30 +0200
      Re: Own MTA is hard (was: chromebook) Reco <recoverym4n@enotuniq.net> - 2019-07-11 10:40 +0200
        Re: Own MTA is hard (was: chromebook) <tomas@tuxteam.de> - 2019-07-11 10:50 +0200
      Re: chromebook John Hasler <jhasler@newsguy.com> - 2019-07-11 18:40 +0200
        Re: chromebook <tomas@tuxteam.de> - 2019-07-12 09:40 +0200
          Re: chromebook Curt <curty@free.fr> - 2019-07-12 10:00 +0200
            Re: chromebook <tomas@tuxteam.de> - 2019-07-12 10:40 +0200
          [Off-topic] John Hasler <jhasler@newsguy.com> - 2019-07-12 16:00 +0200
            Re: [Off-topic] <tomas@tuxteam.de> - 2019-07-12 16:30 +0200
            Re: [Off-topic] Reco <recoverym4n@enotuniq.net> - 2019-07-12 19:00 +0200
              Re: [Off-topic] Diagonal Arg <debian.org@niwas.net> - 2019-07-17 04:20 +0200
                Re: [Off-topic] Nicholas Geovanis <nickgeovanis@gmail.com> - 2019-07-17 18:30 +0200
    Re: chromebook rhkramer@gmail.com - 2019-07-11 14:00 +0200
      Re: chromebook <tomas@tuxteam.de> - 2019-07-11 14:50 +0200
        Re: chromebook Keith Bainbridge <keithrbau@gmail.com> - 2019-07-17 06:30 +0200
          Re: chromebook Diagonal Arg <debian.org@niwas.net> - 2019-07-17 06:50 +0200
            Re: chromebook <tomas@tuxteam.de> - 2019-07-17 09:10 +0200

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