Nguyen The Duc

@ducnt_

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

Hồ Chí Minh, Việt Nam  
Se unió en febrero de 2017

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  1. Tweet fijado
    8 ene.
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  2. hace 1 hora

    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 :).

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  3. retwitteó
    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。

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  4. retwitteó
    29 mar.

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

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  5. retwitteó
    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:

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  6. retwitteó
    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:

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  7. retwitteó
    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 👏🙏

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  8. retwitteó
    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.

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  9. retwitteó
    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.

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  10. retwitteó
    18 mar.
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  11. retwitteó
    16 mar.

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

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  12. retwitteó
    16 mar.

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

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  13. retwitteó
    12 mar.
    En respuesta a

    we really out here and aren't lackin

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  14. retwitteó
    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)_/¯ 🐧

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  15. retwitteó
    4 mar.
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  16. retwitteó
    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!

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  17. 27 feb.

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

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  18. retwitteó
    25 feb.

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

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  19. retwitteó
    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.

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  20. retwitteó
    18 feb.

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

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  21. retwitteó
    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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