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mjtsai's profile
Michael Tsai
Michael Tsai
Michael Tsai
Verified account
@mjtsai

Michael TsaiVerified account

@mjtsai

Mac Software Developer

Joined August 2007
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    1. Michael Tsai ‏@mjtsai Feb 15

      @rosyna So you’re saying that the reason the Mac App Store requires sandboxing is to protect against Flash, which most apps don’t use?

      0 replies 0 retweets 0 likes
    2. Rosyna Keller ‏@rosyna Feb 15

      @mjtsai No, it's to prevent bugs in the apps from being exploited and doing harm to other parts of the system.

      0 replies 0 retweets 1 like
    3. Michael Tsai ‏@mjtsai Feb 15

      @rosyna But, aside from your example of Flash, where is the code that’s exploiting these bugs?

      0 replies 0 retweets 0 likes
    4. Rosyna Keller ‏@rosyna Feb 15

      @mjtsai The bugs are in the apps. The malicious code is delivered multiple ways. Wikipedia has an article on RCE. https://en.wikipedia.org/wiki/Arbitrary_code_execution …

      0 replies 0 retweets 1 like
    5. Drew Thaler ‏@drewthaler Feb 15

      @rosyna @mjtsai Or touch that file or whatever. But notice that Spotify isn't malicious, in the example it's hijacked and becomes malicious

      0 replies 0 retweets 0 likes
    6. Rosyna Keller ‏@rosyna Feb 15

      @drewthaler @mjtsai That actually happened to Twitter for Mac OS X a few years ago due to an image parsing bug.

      0 replies 0 retweets 1 like
    7. Michael Tsai ‏@mjtsai Feb 15

      @rosyna @drewthaler Even for things that would never be approved in the Mac App Store, so that every Developer ID app can be sandboxed.

      0 replies 0 retweets 0 likes
    8. Gwynne Raskind ‏@ameaijou Feb 15

      @mjtsai @rosyna @drewthaler If such entitlements existed, a lot of Developer ID apps would be on the store.

      0 replies 0 retweets 0 likes
    9. Rosyna Keller ‏@rosyna Feb 15

      @ameaijou @mjtsai @drewthaler Which are currently missing?

      0 replies 0 retweets 0 likes
    10. Rosyna Keller ‏@rosyna Feb 15

      @ameaijou @mjtsai @drewthaler Also, non-MAS Apps can declare sandbox exceptions for AppleEvents and Mach messaging, the two major issues.

      0 replies 0 retweets 0 likes
      Michael Tsai Verified account ‏@mjtsai Feb 16

      @rosyna @ameaijou @drewthaler But only specific targets/ports that are known at compile time, right?

      7:17 AM - 16 Feb 2016
      0 replies 0 retweets 0 likes
        1. Rosyna Keller ‏@rosyna Feb 16

          @mjtsai @ameaijou @drewthaler No, they can be blanket exceptions.

          0 replies 0 retweets 0 likes
        2. View other replies
        3. Michael Tsai ‏@mjtsai Feb 16

          @rosyna @ameaijou @drewthaler I don’t think the link that you posted offers blanket exceptions. Plus, those are temporary.

          0 replies 0 retweets 0 likes
        4. View other replies
        5. Erik Schwiebert ‏@Schwieb Feb 16

          @mjtsai @rosyna @ameaijou @drewthaler “temporary” in that Apple specifically says use them and file bugs for missing permanent things.

          0 replies 0 retweets 0 likes
        6. Rosyna Keller ‏@rosyna Feb 16

          @Schwieb @mjtsai @ameaijou @drewthaler That too, if there's no current way to narrow the focus with existing entitlements.

          0 replies 0 retweets 0 likes

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