0x4D5A

@0x4D5A

Security Researcher Cat content || exploits || GTFO

Vrijeme pridruživanja: veljača 2016.

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  1. proslijedio/la je Tweet
    28. sij

    Just put together our recent struggle to solve the type equality problem in LLVM. I would love to hear some feedback from LLVM folks:

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  2. proslijedio/la je Tweet
    20. sij

    Hey Berlin folks, a good friend of mine is looking for an intern to join their team to work on formal verification. Please see more details here: or DM Claudiu, I'm sure he would be glad to answer any questions 😀

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  3. 16. sij

    `If a dangerous bug to you is “somebody dies”, then yes, formal methods are hard. `* but but but fuzzing .. ! *

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  4. 15. sij
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  5. proslijedio/la je Tweet
    10. sij

    I'm releasing ghidra scripts that I made for pwn and reversing tasks, starting with this set of scripts to replace linux/libc magic numbers with readable names for aarch64, amd64/i386, arm/thumb, hppa, m68k, mips, ppc, ppc64, sh, sh4, sparc and sparc64.

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  6. 1. sij

    When bugs are fixed in FF but you are not done with them yet..

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  7. proslijedio/la je Tweet
    27. pro 2019.

    I blog about writing custom protobuf mutation routines for fuzzing: Happy holidays and happy fuzzing! May you beat randomness with a custom mutation and find that elusive bug :-)

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  8. 30. pro 2019.

    93 parameter to "custom_color.css.php", what could possibly go wrong?

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  9. proslijedio/la je Tweet

    you: worrying about a hashmap's performance oracle:

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  10. 12. pro 2019.
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  11. proslijedio/la je Tweet
    12. pro 2019.

    You can now install Miasm using "pip install miasm" ! See

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  12. 12. pro 2019.

    Developers’ Meeting "Ownership SSA"

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  13. 9. pro 2019.

    Some interesting write-ups, actually: "finding bugs in linux kernel filesystem modules"

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  14. proslijedio/la je Tweet
    6. pro 2019.

    Here is an exploit chain I wrote for Firefox that gets RCE via CVE-2019-9810 and escape the sandbox with CVE-2019-11708/CVE-2019-9810. Once compromised, it drops a payload and injects privileged JS code in already/newly created tabs.

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  15. proslijedio/la je Tweet
    4. pro 2019.

    Video () and slides () of a talk on elegant and scalable code querying I recently gave at Connected Data London.

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  16. proslijedio/la je Tweet
    4. pro 2019.

    Folks, anyone in Berlin wanna host a meetup on software verification? I know the speaker and I am sure the content will be top notch!

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  17. proslijedio/la je Tweet
    4. pro 2019.
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  18. proslijedio/la je Tweet
    25. stu 2019.

    haybale: Symbolic execution of LLVM IR with an engine written in Rust

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  19. proslijedio/la je Tweet
    23. lis 2019.

    Smallest PE file that downloads a file from the Internet Oh my, I love this. 💛 Has anyone already done this for x64 executables? That DLL import from a network share looks as if ... 😬

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  20. proslijedio/la je Tweet
    4. stu 2019.
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