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arturjanc's profile
Artur Janc
Artur Janc
Artur Janc
@arturjanc

Tweets

Artur Janc

@arturjanc

Making the web platform more secure one Twitter flamewar at a time.

Zurich, Switzerland
Joined February 2012

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    1. Mike West‏ @mikewest 26 Jul 2017

      Mike West Retweeted Yosuke HASEGAWA

      This is a fairly exciting presentation about the dangers of injecting user controlled content into an Electron app. Short version: Don't.https://twitter.com/hasegawayosuke/status/789330285179514880 …

      Mike West added,

      Yosuke HASEGAWA @hasegawayosuke
      Slide for my talk from now "ELECTRON - Build cross platform desktop XSS" is already published at here. http://utf-8.jp/cb2016  #codeblue_jp
      4 replies 21 retweets 44 likes
    2. Mike West‏ @mikewest 26 Jul 2017
      Replying to @mikewest

      It also reminds me that I should follow through on the thought behind https://www.chromestatus.com/metrics/feature/timeline/popularity/1550 …: CSP should treat `<meta>` refresh as script.

      2 replies 0 retweets 5 likes
    3. Jun Kokatsu‏ @shhnjk 26 Jul 2017
      Replying to @mikewest

      Yes, please! :)

      1 reply 0 retweets 0 likes
    4. Mike West‏ @mikewest 26 Jul 2017
      Replying to @shhnjk

      @arturjanc: Were you complaining about this suggestion? I think you were complaining about this suggestion.

      2 replies 0 retweets 0 likes
      Artur Janc‏ @arturjanc 26 Jul 2017
      Replying to @mikewest @shhnjk

      IIUC it wouldn't solve the problem because of other ways to trigger navigations. Also, it's not backward-compatible and would break ∞ :(

      1:07 PM - 26 Jul 2017
      1 reply 0 retweets 0 likes
        1. New conversation
        2. Mike West‏ @mikewest 26 Jul 2017
          Replying to @arturjanc @shhnjk

          What other ways are you thinking of? *shrug* I’m sure it would break some things, but 0.001% is not a lot of percent.

          1 reply 0 retweets 0 likes
        3. Artur Janc‏ @arturjanc 26 Jul 2017
          Replying to @mikewest @shhnjk

          Links, form submissions, <iframe> navigating http://window.top , etc. I'm wary of believing UMA here, but I have no data to prove it :/

          1 reply 0 retweets 0 likes
        4. Mike West‏ @mikewest 26 Jul 2017
          Replying to @arturjanc @shhnjk

          I believe our metrics! Unless they tell me things I don’t want to hear.

          1 reply 0 retweets 0 likes
        5. Jun Kokatsu‏ @shhnjk 26 Jul 2017
          Replying to @mikewest @arturjanc

          I think another point here is that meta refresh allows dangling markup without user interaction.

          1 reply 0 retweets 0 likes
        6. Mike West‏ @mikewest 26 Jul 2017
          Replying to @shhnjk @arturjanc

          Can you? Starting in 61, we should be blocking requests that contain newlines and ‘<’, which I hope mitigates this risk.

          1 reply 0 retweets 0 likes
        7. Jun Kokatsu‏ @shhnjk 27 Jul 2017
          Replying to @mikewest @arturjanc

          cool, will test it then :)

          1 reply 0 retweets 1 like
        8. Mike West‏ @mikewest 27 Jul 2017
          Replying to @shhnjk @arturjanc

          CC me on the bugs you file. :)

          1 reply 0 retweets 1 like
        9. Jun Kokatsu‏ @shhnjk 27 Jul 2017
          Replying to @mikewest @arturjanc

          Sorry, seems like I don't have permission to CC you :P https://bugs.chromium.org/p/chromium/issues/detail?id=749852 …

          0 replies 0 retweets 0 likes
        10. End of conversation

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