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j00ru's profile
j00ru//vx
j00ru//vx
j00ru//vx
@j00ru

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j00ru//vx

@j00ru

Windows hacker & vulnerability researcher. Google Project Zero. @DragonSectorCTF

Poland
j00ru.vexillium.org
Joined April 2010

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    j00ru//vx‏ @j00ru 23 Jun 2015

    Owning Adobe Reader and the Windows Kernel with a single font bug - slides and other details of my research are outhttp://j00ru.vexillium.org/?p=2520 

    11:56 AM - 23 Jun 2015
    • 368 Retweets
    • 269 Likes
    • Mike Virus Nieves Comae Technologies runixd Debug_Orz Berry Pierre-Olivier Carles Wojciech Muła God of Sploits José Enrique Pérez
    9 replies 368 retweets 269 likes
      1. New conversation
      2. Daniel Bilar‏ @daniel_bilar 25 Jun 2015
        Replying to @j00ru

        Daniel Bilar Retweeted Daniel Bilar

        @j00ru @t_toyota I like that ld/st effect primitive :Dhttps://twitter.com/daniel_bilar/status/613794887532703748 …

        Daniel Bilar added,

        Daniel Bilar @daniel_bilar
        1998 Type 2 Charstring specs defines Registry Object (ld/st btwn transient array/registry). 2015 #weirdmachine PoC pic.twitter.com/a3zApE7r5p
        2 replies 0 retweets 1 like
      3. Joshua J. Drake‏ @jduck 29 Jun 2015
        Replying to @daniel_bilar

        @daniel_bilar @j00ru @t_toyota maybe you guys will find this familiar - http://www.zerodayinitiative.com/advisories/ZDI-13-078/ … http://www.accuvant.com/labs/research/pwn2own-2013-java-exploit-details …

        1 reply 0 retweets 5 likes
      4. j00ru//vx‏ @j00ru 29 Jun 2015
        Replying to @jduck

        @jduck @daniel_bilar @t_toyota Of course, I know the paper by heart. Good job btw, it helped me during early days of the research. :-)

        2 replies 0 retweets 1 like
      5. Joshua J. Drake‏ @jduck 1 Jul 2015
        Replying to @j00ru

        @j00ru @daniel_bilar @t_toyota glad to hear it. was it the same as one of your bugs?

        1 reply 0 retweets 0 likes
      6. j00ru//vx‏ @j00ru 1 Jul 2015
        Replying to @jduck

        @jduck @daniel_bilar @t_toyota No. Same operators, but different type of bug (oob off-by-one Registry Object index, not overly large count).

        0 replies 1 retweet 1 like
      7. End of conversation
      1. New conversation
      2. The Muffin Man‏ @TheMuffinManFPS 23 Jun 2015
        Replying to @j00ru

        @j00ru @SwiftOnSecurity I would be Interested to know if EMET or other anti-exploit tools prevent this.

        1 reply 0 retweets 0 likes
      3. j00ru//vx‏ @j00ru 24 Jun 2015
        Replying to @TheMuffinManFPS

        @TheMuffinManFPS @SwiftOnSecurity EMET would not prevent this, but probably make the exploit more complex. Probably same with other tools.

        1 reply 0 retweets 0 likes
      4. The Muffin Man‏ @TheMuffinManFPS 24 Jun 2015
        Replying to @j00ru

        @j00ru @SwiftOnSecurity I would be interested in seeing this https://www.youtube.com/watch?v=OnZyKuZDf5Y … re-run with EMET enabled on Adobe Acrobat and 64bit.

        0 replies 0 retweets 0 likes
      5. End of conversation
      1. New conversation
      2.  🍂-𝖏𝖚𝖗𝖕𝖍- 🎃‏ @jurph 23 Jun 2015
        Replying to @j00ru

        @j00ru @angealbertini Wait, so after reading that Abstract, I'm supposed to *want* to download a PDF from you?

        1 reply 0 retweets 9 likes
      3.  👼Ąż杏‏ @angealbertini 23 Jun 2015
        Replying to @jurph

        @jurph I would actually discourage to download anything coming from @j00ru ;)

        0 replies 1 retweet 3 likes
      4. End of conversation
      1. Serge‏ @q3k 23 Jun 2015
        Replying to @j00ru

        @j00ru did you just.nonchalantly drop 15 CVEs in a single blogpost..?

        0 replies 3 retweets 6 likes
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      1. Sibin Grašić‏ @ETFovac 23 Jun 2015
        Replying to @j00ru

        @cujanovic @kutija Bacite pogled na ovaj blog post - @j00ru @SwiftOnSecurity

        0 replies 0 retweets 1 like
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      1. ㅤ ㅤ ㅤㅤ 🌏 <br />空兒‏ @Nin_99 24 Jun 2015
        Replying to @j00ru

        @j00ru You should put the exploit in the PDF :).

        0 replies 0 retweets 0 likes
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      1. Michael T. Babcock‏ @mikebabcock 24 Jun 2015
        Replying to @j00ru

        @j00ru Adobe writes buggy code again; news at 11? :-)

        0 replies 0 retweets 0 likes
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      1. A.C.‏ @costinandrei 24 Jun 2015
        Replying to @j00ru

        @j00ru nice research.btw,it's funny where you can find postscript engines,e.g., MS Office "PS stack crash" http://andreicostin.com/papers/Conf%20-%20HITB2012AMS%20-%20PostScript%20Danger%20Ahead.pdf#page17 …

        0 replies 0 retweets 0 likes
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      1. Michael Wheeler‏ @theskorm 24 Jun 2015
        Replying to @j00ru

        @j00ru @SwiftOnSecurity are the slides that are linked in pdf form :p?

        0 replies 0 retweets 0 likes
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