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ortegaalfredo's profile
Alfredo Ortega
Alfredo Ortega
Alfredo Ortega
@ortegaalfredo

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Alfredo Ortega

@ortegaalfredo

Software/Hardware security researcher - Cybergaucho

Buenos Aires
aortega.keybase.pub/pubkey-aortega…
Joined March 2009

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    Alfredo Ortega‏ @ortegaalfredo May 11

    Remote zero-click JavaScript code execution on signal desktop message app. Thanks @HacKanCuBa and @julianorpic.twitter.com/YgT8akGfBI

    12:05 PM - 11 May 2018
    • 756 Retweets
    • 1,195 Likes
    • Félix Brezo Shikari Senpai TheLegendary Mathieu Bolard Santiago Manopella Anne Jan Brouwer Guz 'Kristi Begaj🇦🇱 Robert Muschong
    32 replies 756 retweets 1,195 likes
      1. Alfredo Ortega‏ @ortegaalfredo May 11

        cc @signalapp @moxie

        2 replies 1 retweet 25 likes
        Show this thread
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      1. New conversation
      2. jsnar‏ @jsnar0 May 11
        Replying to @ortegaalfredo @HacKanCuBa @julianor

        Signal desktop app is based on the insecure Electron runtime. See my report here:https://github.com/signalapp/Signal-Desktop/issues/1635 …

        6 replies 51 retweets 139 likes
      3. Alfredo Ortega‏ @ortegaalfredo May 11
        Replying to @jsnar0 @HacKanCuBa @julianor

        I wish I could feel the sweet "I told you so, fuckers" sensation you are having right now.

        1 reply 0 retweets 91 likes
      4. Alex Russell‏ @slightlylate May 12
        Replying to @ortegaalfredo @jsnar0 and

        Electron: what could possibly go wrong with an out-of-date Chromium that disables sandboxing by default?

        1 reply 10 retweets 16 likes
      5. pip010‏ @ppetrovdotnet May 13
        Replying to @slightlylate @ortegaalfredo and

        wonder if RiotChat / http://matrix.org  web apps are affected too

        1 reply 0 retweets 0 likes
      6. Riot.im‏ @RiotChat May 13
        Replying to @ppetrovdotnet @slightlylate and

        as far as we know, this one is Signal specific.

        1 reply 0 retweets 1 like
      7. Ian Coldwater‏ @IanColdwater May 13
        Replying to @RiotChat @ppetrovdotnet and

        It is not.https://www.trustwave.com/Resources/SpiderLabs-Blog/CVE-2018-1000136---Electron-nodeIntegration-Bypass/ …

        2 replies 1 retweet 4 likes
      8. Riot.im‏ @RiotChat May 13
        Replying to @IanColdwater @ppetrovdotnet and

        as far as we know there are two issues here; an XSS vuln of some kind in Signal (the original post) and then the RCE in electron you linked. The XSS is Signal specific, and we’re not aware of a way to exploit the RCE via riot-web. That said, roll on proper native Matrix clients..

        1 reply 0 retweets 0 likes
      9. pip010‏ @ppetrovdotnet May 14
        Replying to @RiotChat @IanColdwater and

        Oh , yes, I was considering already a native Qt/cpp desktop client.

        0 replies 0 retweets 0 likes
      10. End of conversation
      1. New conversation
      2. mandatory/Matthew Bryant‏ @IAmMandatory May 11
        Replying to @ortegaalfredo @HacKanCuBa @julianor

        Wow, reproduced this. I can't believe this trivial of a mistake was made and not caught before deployment. The patch looks very sketchy too, I doubt it can't be bypassed. Nice work folks!

        1 reply 2 retweets 23 likes
      3.  🌦‏ @zemnmez May 11
        Replying to @IAmMandatory @ortegaalfredo and

        lmao, there is a post like this behind every rce i swearpic.twitter.com/HGRj4lm1XR

        2 replies 4 retweets 36 likes
      4. mandatory/Matthew Bryant‏ @IAmMandatory May 11
        Replying to @zemnmez @ortegaalfredo and

        It's so great, there must be an X's law for thispic.twitter.com/JEZ6Ub6UVL

        1 reply 3 retweets 33 likes
      5.  🌦‏ @zemnmez May 11
        Replying to @IAmMandatory @ortegaalfredo and

        behind every major vulnerability forewarned by basic threat modelling there is an engineer with a hill to die on

        0 replies 13 retweets 43 likes
      6. End of conversation
      1. New conversation
      2. 𝚐𝚘𝚗𝚣𝚊𝚕𝚘‏ @x61sh May 11
        Replying to @ortegaalfredo @HacKanCuBa @julianor

        que dice el popup? ubuntu? no se ve una mierda

        2 replies 0 retweets 1 like
      3. Alfredo Ortega‏ @ortegaalfredo May 11
        Replying to @x61sh @HacKanCuBa @julianor

        Ponelo en full screen, no se si OpenBSD lo soporta.

        1 reply 0 retweets 22 likes
      4. 𝚐𝚘𝚗𝚣𝚊𝚕𝚘‏ @x61sh May 11
        Replying to @ortegaalfredo @HacKanCuBa @julianor

        sos re malo.

        0 replies 0 retweets 4 likes
      5. End of conversation
      1. New conversation
      2. Great Snoopy‏ @GreatSnoopy77 May 11
        Replying to @ortegaalfredo @HacKanCuBa @julianor

        There are quite a few identically implemented chat clients. I wonder if this is also exploitable on those: whatsapp messengerfordesktop slack...

        1 reply 1 retweet 5 likes
      3. dr1ft/Gaia‏ @stardr1ft May 11
        Replying to @GreatSnoopy77 @ortegaalfredo and

        discord :^)

        1 reply 1 retweet 6 likes
      4. Gary S‏ @madhaha May 12
        Replying to @stardr1ft @GreatSnoopy77 and

        And Slack. VS Code might be hit as well?

        1 reply 1 retweet 3 likes
      5. dr1ft/Gaia‏ @stardr1ft May 12
        Replying to @madhaha @GreatSnoopy77 and

        i would guess this exploit is specific to signal but, it's a good example of why we shouldnt be using electron. for anything.

        1 reply 2 retweets 11 likes
      6. Great Snoopy‏ @GreatSnoopy77 May 12
        Replying to @stardr1ft @madhaha and

        Do we know that it is signal specific and not some content related bug that gets passed to electron no matter the actual transport?

        1 reply 0 retweets 1 like
      7. Ivan  💚 🧡 HacKan‏ @HacKanCuBa May 12
        Replying to @GreatSnoopy77 @stardr1ft and

        they checked other platforms and apps, we also thought this could be electron and not signal specific. But it is just signal

        1 reply 1 retweet 5 likes
      8. Great Snoopy‏ @GreatSnoopy77 May 12
        Replying to @HacKanCuBa @stardr1ft and

        This, at least is a good news. Until further discoveries. :)

        0 replies 1 retweet 1 like
      9. End of conversation

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