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HAXX.IN

Personal blog · haxx.in/postssecurityhardware

HAXX.IN is a personal blog at haxx.in about security and hardware. Since 2015, 7 different Hacker News readers have linked it 7 times, most often “Hacking the Canon ImageCLASS MF742Cdw/MF743Cdw (Again)”. It is still writing: the last post was on 2025-09-23, and you can follow it by feed.

Visit the blog
7mentions?
7HN people?
2015–2025first – last linked?
Links on Hacker News per year · peak 2 in 2024

Too few sampled comments (2) to say how often HN recommends it.?

Why HN links it

HN readers link haxx.in for security research write-ups and proof-of-concept exploits, such as the polkit pkexec privilege escalation (Pwnkit) and a Python RCE via untrusted float input.

Summarised by Claude from a sample of 2 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.

Most-linked posts?

  1. Hacking the Canon ImageCLASS MF742Cdw/MF743Cdw (Again)
    3 people · 3 mentions · first linked 2023-11-28

What Hacker News says?

  1. POC (tweet + direct link) https://twitter.com/bl4sty/status/1486092552755466242 https://haxx.in/files/blasty-vs-pkexec.c

    Comment linking /files/blasty-vs-pkexec.c

    on “Pwnkit: Local Privilege Escalation in polkit's pkexec (CVE-2021-4034)”
  2. Submitted Hacking Printers Using Fonts as a story · 15 points

    HN discussion
  3. Hey! Original discoverer here. I would like to clarify some things. It would certainly be possible given that we can have numeric shell-code (check the reference). The real problem in here is the security mechanisms like stack cookies, brute-forcing those would have been a PITA with only numbers. But I'd have to take a closer look at the stack god knows what GCC could have done there :) On a system without these pro…

    Comment linking /posts/numeric-shellcode/

    on “Python 3.x: RCE in Python applications that accept floats as untrusted input”
  4. Submitted Hacking the Canon ImageCLASS MF742Cdw/MF743Cdw (Again) as a story · 3 points

    HN discussion
  5. Submitted Hacking the Canon ImageCLASS MF742Cdw/MF743Cdw (Again) as a story · 2 points

    HN discussion
  6. Submitted Hacking the Canon ImageCLASS MF742Cdw/MF743Cdw (Again) [2023] as a story · 2 points

    HN discussion
  7. Submitted upc_keys.c – WPA2 passphrase recovery tool for UPC devices as a story · 2 points

    HN discussion

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