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
Joined February 2017
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  1. Pinned Tweet
    Jan 8

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

    1 reply . 15 likes
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  2. Feb 27

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

    1 reply . 1 retweet 9 likes
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  3. Retweeted
    Feb 25

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

    1 reply . 112 retweets 211 likes
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  4. Retweeted
    Feb 21

    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.

    13 replies . 239 retweets 614 likes
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  5. Retweeted
    Feb 18

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

    2 replies . 111 retweets 305 likes
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  6. Retweeted
    Feb 17

    [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 replies . 188 retweets 351 likes
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  7. Retweeted
    Feb 17

    Just published another remote code execution chain I exploited recently. I also wrote about how organizations can stop these attacks at the development stage - the key is convention over configuration.

    17 replies . 211 retweets 650 likes
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  8. Retweeted
    Feb 11

    さんとSpectreやXS-LeaksやCross-Origin-*ヘッダーについて話しました！ / ep63 Cross Origin Info Leaks

    1 reply . 4 retweets 32 likes
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  9. Retweeted
    Feb 17

    Top 10 new web hacking techniques of 2019

    7 replies . 769 retweets 1,517 likes
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  10. Retweeted
    Feb 12

    I've discovered logic privilege escalation bug on AMD User Experience Program Launcher from Radeon Software -2020-8950

    1 reply . 84 retweets 156 likes
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  11. Retweeted
    Feb 11

    Blind SSRF exploitation En: Ru: What about port scanning using DNS-requests?

    4 replies . 165 retweets 421 likes
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  12. Retweeted
    Feb 11

    A few small proposals for PHP 8 have been accepted: ::class Static return type Variable syntax tweaks

    11 replies . 135 retweets 331 likes
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  13. Retweeted
    10 Jul 2018

    Neatly bypassing Content Security Policy. Why 'unsafe-inline' is almost always a full-fledged XSS.

    5 replies . 130 retweets 254 likes
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  14. Retweeted
    Feb 6

    DOM Clobbering strikes back by

    2 replies . 90 retweets 214 likes
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  15. Retweeted
    Feb 6

    Thanks to research, new stuff are being released for soon - as for the features, payload minimization, raw cmd command, and auto command encoding within JSON/XML messages are being released after the PR review by

    1 reply . 33 retweets 113 likes
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  16. Retweeted
    Feb 5

    Nice by

    13 retweets 58 likes
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  17. Retweeted
    Feb 5

    Checkra1n for Windows first demo!!🔥🔥 Coming Soon!!

    87 replies . 306 retweets 1,682 likes
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  18. Retweeted
    Feb 3

    Here's my write-up for ’s CTF challenge!

    5 replies . 29 retweets 108 likes
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  19. Retweeted
    Feb 3

    CVE-2020-7471: SQLI in Django: django.contrib.postgres.aggregates.StringAgg aggregation function was subject to SQL injection, using a suitably crafted delimiter. FIX:

    57 retweets 132 likes
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  20. Retweeted
    Jan 31

    , , and I are starting a new security blog. In our first write-up, we will discuss the impact of "SameSite by default" and how it affects web app sec. Feel free to request future topics you would like us to cover.

    11 replies . 216 retweets 413 likes
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  21. Retweeted
    Jan 30

    Someone dropped a PHP zero-day on GitHub. Talked to the PHP team last night. Bug requires local foothold to exploit, so not usable for remote attacks. Also, this is the second exploit for this "disable_functions bypass" in the last few months.

    5 replies . 122 retweets 190 likes
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