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taviso's profile
Tavis Ormandy
Tavis Ormandy
Tavis Ormandy
Verified account
@taviso

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Tavis OrmandyVerified account

@taviso

Vulnerability researcher at Google. This is a personal stream, opinions expressed are mine.

California
taviso.decsystem.org
Joined April 2008

Tweets

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    1. haroon meer‏ @haroonmeer 26 Nov 2018
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      Replying to @dinodaizovi

      The flip side i refer to isn't because of 0-interaction.. I refer instead to the fact that even the few that can, are locked out of possible defensive tooling. I agree that the others are (mostly) dumpster-fires..

      0 replies 0 retweets 3 likes
    2. haroon meer‏ @haroonmeer 26 Nov 2018
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      Replying to @chrisrohlf @dinodaizovi

      The question here would be if useful custom mitigations have ever been developed for an open platform..

      0 replies 0 retweets 1 like
    3. haroon meer‏ @haroonmeer 26 Nov 2018
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      Replying to @chrisrohlf @dinodaizovi

      Totally agree that the approach has worked super well for protecting the masses. Totally feel like opening the kimono a little more to researchers is going to help going forward.

      1 reply 0 retweets 1 like
    4. Patrick Gray‏ @riskybusiness 26 Nov 2018
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      Replying to @haroonmeer @chrisrohlf @dinodaizovi

      If it takes million dollar exploits to own your stuff, you’ve won. I can’t imagine third parties being able to do much to eliminate that particular risk... it’s a lot of dollars.

      2 replies 1 retweet 10 likes
    5. Tavis Ormandy‏Verified account @taviso 26 Nov 2018
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      Replying to @riskybusiness @haroonmeer and

      I think we both agree that if it costs 1M to compromise you, you're doing pretty well. If an exploit costs 1M, that's just upfront cost, you can use it indefinitely so the cost-per-compromise could be tiny. Doesn't sound quite as impressive if unit cost of compromise was $6.

      1 reply 0 retweets 6 likes
    6. Patrick Gray‏ @riskybusiness 26 Nov 2018
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      Replying to @taviso @haroonmeer and

      True, but mass compromises tend to rely on publicly available Nday exploits, not expensive 0day people don’t want to burn. Notpetya, Code Red, Nimda, slammer, blaster...

      1 reply 0 retweets 0 likes
    7. Tavis Ormandy‏Verified account @taviso 26 Nov 2018
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      Replying to @riskybusiness @haroonmeer and

      Nobody is doing that with 0day, they would burn the exploit immediately. If you just paid $1M for it, you're not going to throw it around where someone can find it. You only need 100 successful operations to get the unit cost down to 10k, totally doable.

      3 replies 0 retweets 6 likes
    8. Stefan Esser‏Verified account @i0n1c 26 Nov 2018
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      Replying to @taviso @riskybusiness and

      again... it doesn’t cost 1M if the required components are available on the market for 20% of 1M

      2 replies 0 retweets 0 likes
      Tavis Ormandy‏Verified account @taviso 26 Nov 2018
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      Replying to @i0n1c @riskybusiness and

      I'm just using the figure Patrick used, I'm not claiming that's the cost. I'm just saying that upfront cost of developing or acquiring an exploit != cost of compromise.

      12:49 PM - 26 Nov 2018
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      • Aixeiger Ajay Kulal Ståle Pettersen uadm Meysam Firouzi Patrick Gray
      0 replies 0 retweets 6 likes

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