Nguyen The Duc

@ducnt_

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

Hồ Chí Minh, Việt Nam  
Bergabung Februari 2017

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  1. Tweet Sematan
    8 Jan
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  2. me-Retweet
    10 Jul 2018

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

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    6 Feb
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  4. me-Retweet
    6 Feb

    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

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    6 Feb
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    5 Feb

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

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  7. me-Retweet
    3 Feb

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

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  8. me-Retweet
    3 Feb

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

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  9. me-Retweet
    31 Jan

    , , 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.

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  10. me-Retweet
    31 Jan

    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.

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  11. me-Retweet
    28 Jan

    .Net being open-source makes tracking these things cool. I just hope GitHub adds code navigation support for .net code soon as well. credit for the bug goes to of course.

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  12. me-Retweet
    28 Jan

    Also for the iPhone 11 Pro Max, iOS 13.3.1 beta3 Jailbreak

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  13. me-Retweet
    24 Jan

    Here are my (updated) slides from for my talk "Owning The Cloud Through SSRF & PDF Generators" with Chris Holt from . Big thank you to , , , , , and !

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  14. me-Retweet
    24 Jan
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  15. me-Retweet
    23 Jan

    The Bezos forensic report is not very good. The forensic analysis should be done by who at least have the relevant experience. The MP4 file should contain the exploit (if it is CVE-2019-11931). The exploit trigger should be visible with ffmpeg

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  16. me-Retweet
    22 Jan

    This is a pretty good reminder that any invasive heuristics in the browser - be it XSS filters or privacy protections - often cause more problems than they address:

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  17. me-Retweet
    21 Jan

    Learn how an authenticated RCE vulnerability in < 5.2.4 allows attackers to bypass hardening mechanisms. Read more ->

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  18. me-Retweet
    18 Jan

    Just published a blog post talking about some iOS kernel framebuffer research I’ve been looking at over the last couple weeks. Have a read if you’re interested :)

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  19. me-Retweet
    18 Jan

    RDP to RCE: When Fragmentation Goes Wrong AKA: What we know about CVE-2020-0609 and CVE-2020-0610.

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  20. me-Retweet
    16 Jan
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  21. me-Retweet
    15 Jan

    CVE-2020-5504 SQLI in phpMyAdmin: A malicious user could inject custom SQL in place of their own username when creating queries to this page fix:

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