Nguyen The Duc

@ducnt_

Just another web warrior ⚔️ | Security Researcher | Sr. Security Engineer | CTF player && | Bug bounty hunter

Hồ Chí Minh, Việt Nam  
ducnt.net
Tilmeldt februar 2017
12 billeder og videoer Billeder og videoer

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  1. Fastgjort tweet
    8. jan.

    My first `double kill` at : Kudos to WordPress security team with very quickly and awesome work 🥰

    1 svar 14 likes
    Fortryd
  2. for 1 time siden

    I really happy to share an article that bypass Akamai web application firewall and exploit a SQL Injection vulnerability. Hope this article will help someone in the same situation :).

    2 retweets 6 likes
    Fortryd
  3. retweetede
    30. mar.

    昼に「WindowsのSMBの脆弱性の実用的な検証コードがもうすぐ公開されるかも」みたいなことを投稿しましたが、つい先ほど公開されました。まだセキュリティ更新プログラムを適用していない人は、速やかに適用しましょう。

    109 retweets 156 likes
    Fortryd
  4. retweetede
    29. mar.

    My last article: Bypass Content-Security-Policy by hiding JavaScript in a PNG image.

    9 svar 82 retweets 214 likes
    Fortryd
  5. retweetede
    29. mar.

    Did you know that / CVE-2020-0796 can be used for a Local Privilege Escalation? We'll post the details + POC in the next few days and in the meantime:

    5 svar 336 retweets 692 likes
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    Fortryd
  6. retweetede
    28. feb.

    it took me two days to finish the analysis of cve-2020-6418, amazing vuln, learned a lot from this bug. thanks to here is the github repo: and here is the writeup:

    4 svar 128 retweets 321 likes
    Fortryd
  7. retweetede
    20. mar.

    Had fun today writing a .NET exploit for 's CVE-2020-0787 BITS LPE and UsoLoader technique. Check out his blog posts and research if you haven't already. They are all brilliant 👏🙏

    3 svar 85 retweets 187 likes
    Fortryd
  8. retweetede
    19. mar.

    Confirmed! combined an info leak & an uninitialized variable in to pop calc on the host OS. He earned himself $40,000 and 4 points towards Master of Pwn.

    29 retweets 96 likes
    Fortryd
  9. retweetede
    18. mar.

    "XXE-scape through the front door: circumventing the firewall with HTTP request smuggling" - read my write-up about a pretty cool way in which I bypassed a firewall stopping me from exploiting an XXE vulnerability.

    18 svar 250 retweets 504 likes
    Fortryd
  10. retweetede
    18. mar.

    New blog post by on bypassing .NET ETW for red teams

    2 svar 91 retweets 167 likes
    Fortryd
  11. retweetede
    16. mar.

    The December update to HTTP Request Smuggler added a new desync technique by - he's just blogged the full details here:

    2 svar 130 retweets 344 likes
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    Fortryd
  12. retweetede
    16. mar.

    "CVE-2020-0796 Pre-Auth POC" Tl;Dr: Only DoS by BSOD so far. No RCE proof-of-concept out yet.

    3 retweets 7 likes
    Fortryd
  13. retweetede
    12. mar.
    Svarer

    we really out here and aren't lackin

    4 svar 10 retweets 141 likes
    Fortryd
  14. retweetede
    9. mar.

    I have something fun for you, I pulled the javascript interpreter out of Avast and ported it to Linux 😆 This runs unsandboxed as SYSTEM, any vulns are wormable pre-auth RCE on 400M endpoints  ¯\_(ツ)_/¯ 🐧

    83 svar 1.217 retweets 3.207 likes
    Fortryd
  15. retweetede
    4. mar.

    Interesting new vulnerability in pppd, nice find Ilja Van Sprundel of Fix:

    2 retweets 1 like
    Fortryd
  16. retweetede
    2. mar.

    This blog post should be useful for those who also know how SharePoint works: - I've shown how code injection can aid to bypass some misconfigs in .NET + some thoughts for actual bypasses if you've research time!

    I have had this question of why we cannot get a shell when we can create files in our directory. I thought it is a well-known thing, but do you know why? (I like to see if it can be a blog worthy topic in 2020) 🍻
    Vis denne tråd
    1 svar 46 retweets 84 likes
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    Fortryd
  17. 27. feb.

    Filed a duplicate with gr8 bug was found by but can reopen it with a triaged issue. Really a excited moment.

    1 svar 1 retweet 10 likes
    Fortryd
  18. retweetede
    25. feb.

    New blog post! Here is how you can use MSBuild’s UnregisterAssembly task to execute arbitrary code in a .NET assembly. ⤵️

    1 svar 115 retweets 213 likes
    Fortryd
  19. retweetede
    21. feb.

    Just wrote a new article about how I found a Remote Command Execution 0-day (CVE-2020-8813) via static analysis in Cacti v1.2.8 the popular infrastructure graphing solution. I also explained how to exploit it without authentication in some cases.

    14 svar 239 retweets 614 likes
    Fortryd
  20. retweetede
    18. feb.

    Slides from my talk on iMessage exploitation: More technical details in the blog post: Great conference again, thanks team! :)

    2 svar 114 retweets 313 likes
    Fortryd
  21. retweetede
    18. feb.

    [PoC] CVE-2020-0618 Microsoft SQL Server Reporting Services RCE Vulnerability POST /ReportServer/pages/ReportViewer.aspx HTTP/1.1 Host: target ... ... NavigationCorrector$PageState=NeedsCorrection&NavigationCorrector$ViewState=[PayloadHere]&__VIEWSTATE=

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    4 svar 186 retweets 349 likes
    Fortryd

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