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jonasLyk's profile
Jonas L
Jonas L
Jonas L
@jonasLyk

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Jonas L

@jonasLyk

viking @the_secret_club

Joined February 2015

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    1. Jonas L‏ @jonasLyk 8 Sep 2020

      Jonas L Retweeted Rich Warren

      CVE-2020-1590 EOP mini writeup So basicly this is just a rerun of the first EOP submission i did where i realised I was doing something novel. CVE-2020-0863-https://twitter.com/buffaloverflow/status/1242497902850854912 …

      Jonas L added,

      Rich Warren @buffaloverflow
      Exploit for @itm4n 's CVE-2020-0863, with this beautiful trick by @jonasLyk to turn it into arbitrary file write 🤩🤯 See: https://itm4n.github.io/cve-2020-0863-windows-diagtrack-info-disclo/ … https://twitter.com/jonasLyk/status/1240392954507919360 … Thanks for sharing, both! 🙏 pic.twitter.com/D63aoBXdMC
      1 reply 22 retweets 53 likes
      Show this thread
    2. Jonas L‏ @jonasLyk 8 Sep 2020

      Diagnostic tracking service will in SYSTEM security context copy xml files from C:\Users\user\AppData\Local\Packages\http://Microsoft.Windows .ContentDeliveryManager_cw5n1h2txyewy\LocalState\Tips\ to C:\ProgramData\Microsoft\Diagnosis\SoftLandingStage\

      2 replies 1 retweet 5 likes
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    3. Jonas L‏ @jonasLyk 8 Sep 2020

      back then I redirected the copy source folder to the namedpipe device. Because the named pipe file system allows directory listings it will try and copy a named pipe with .xml extension But named pipes can have ..\ in the name

      2 replies 0 retweets 4 likes
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    4. Jonas L‏ @jonasLyk 8 Sep 2020

      So when that is used as filename in the copy operation we escape the intended dirs and end up copy my payload into system32.

      1 reply 0 retweets 3 likes
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    5. Jonas L‏ @jonasLyk 8 Sep 2020

      Jonas L Retweeted Jonas L

      Along comes the projected file system- again allowing us to specify invalid filenames in directory listings.https://twitter.com/jonasLyk/status/1265551125593362432 …

      Jonas L added,

      Jonas L @jonasLyk
      WIll tis madness never end? pic.twitter.com/CuvyYg8lrw
      1 reply 2 retweets 8 likes
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      Jonas L‏ @jonasLyk 8 Sep 2020

      So, rince and repeat- There is probaly more ways to do this. Like webdav? You can probaly fake such file names easily with that

      5:27 PM - 8 Sep 2020
      • 1 Retweet
      • 4 Likes
      • `Ivan sailay(valen) 0x4D5A Amar➕eifio Jerry™ 🇬🇭
      0 replies 1 retweet 4 likes

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