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

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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. Intent To Ship‏ @intenttoship 5 Oct 2017

      Blink: Intent to Implement and Ship: 'unsafe-hashed-attributes' in CSP3https://groups.google.com/a/chromium.org/d/msg/blink-dev/bUAhkdsrmqE/nimnFDG3BAAJ …

      2 replies 5 retweets 5 likes
    2. Sebastian Lekies‏ @slekies 5 Oct 2017
      Replying to @intenttoship

      Another 'unsafe-' keyword :-(. What's the rationale for this? Does this enable use cases that aren't possible with standard CSP & JS?

      1 reply 2 retweets 2 likes
    3. Mike West‏ @mikewest 5 Oct 2017
      Replying to @slekies @intenttoship

      Talk to @arturjanc.

      2 replies 0 retweets 0 likes
    4. koto‏ @kkotowicz 5 Oct 2017
      Replying to @mikewest @slekies and

      This particular unsafe kw enables additional, hard to spot attacks. Reasoning about CSP effectiveness per site gets way more complex.

      1 reply 0 retweets 1 like
    5. Mike West‏ @mikewest 6 Oct 2017
      Replying to @kkotowicz @slekies and

      I agree with y'all. It would let @arturjanc and others deploy CSP more widely with less effort, but it's a double-edged sword.

      1 reply 0 retweets 1 like
    6. Mike West‏ @mikewest 6 Oct 2017
      Replying to @mikewest @kkotowicz and

      The question isn't whether the edges are sharp (they are), but whether there's overriding value in increasing deployment of robust policies.

      1 reply 0 retweets 1 like
    7. Mike West‏ @mikewest 6 Oct 2017
      Replying to @mikewest @kkotowicz and

      It's not at all clear to me what the right answer, is, which is why I'm thrilled that @andypaicu is taking care of the conversation. :)

      2 replies 0 retweets 2 likes
    8. Brian Smith‏ @BRIAN_____ 6 Oct 2017
      Replying to @mikewest @kkotowicz and

      I don't see why it should enable the execution of code like this, not in an attribute: <script>transferAllMyMoney()</script>.

      1 reply 0 retweets 1 like
    9. Paicu Alexandru‏ @andypaicu 6 Oct 2017
      Replying to @BRIAN_____ @mikewest and

      I think once you achieve DOM injection you can do the same thing in an attribute anyway. E.g. <img src='bad' onfail='transferAllMyMoney()'>

      3 replies 0 retweets 0 likes
    10. koto‏ @kkotowicz 6 Oct 2017
      Replying to @andypaicu @BRIAN_____ and

      There are known attacks against the whitelisting scheme proposed. This was tried before, really. See e.g. the paper I linked to before.

      1 reply 0 retweets 0 likes
      Artur Janc‏ @arturjanc 6 Oct 2017
      Replying to @kkotowicz @andypaicu and

      Please file spec bugs if you are aware of attacks that haven't already been covered in past discussions. Thanks!

      9:19 AM - 6 Oct 2017
      0 replies 0 retweets 0 likes

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