Another day, another bug...

In 2020, I solved a gnarly reverse engineering challenge in PlaidCTF. Only 9 teams solved.

It's a huge pile of Typescript. Everything is named after a fish.

The catch? There's no code, only types. How do they perform computation using just the type system?

(Spoiler: Circuits!)

High level diff of iOS 18.4 vs. iOS 18.5 beta 1 🎉

https://github.com/blacktop/ipsw-diffs/blob/main/18_4_22E240__vs_18_5_22F5042g/README.md

We've been teasing it for a while, but the full features of Firmware Ninja are officially available on dev and will be in the 5.0 release later this month! Doing reverse engineering of embedded firmware? Check out how FWN can make your life better:

https://binary.ninja/2025/04/02/firmware-ninja.html

How can one engage in algorithmic sabotage to poison "AI" scrapers looking for images when one is running a static website? Thanks to @pengfold, I've implemented a quick and easy way for my own blog:

https://tzovar.as/algorithmic-sabotage-ii/

Also thanks to @rostro & @asrg for the pointers and discussion!

#ai #sabotage #luddite

[RSS] What keeps kernel shadow stack effective against kernel exploits?

https://tandasat.github.io/blog/2025/04/02/sss.html

LLM use case: as "github syntax highlighter" doesn't give very good results when I try to find out what GitHub specifically uses, I turned to FastGPT.

Its answer ("Tree-sitter grammars are used for syntax highlighting") was wrong, while pointed to the correct SO answer (pointing to Linguist) as a reference:

https://stackoverflow.com/questions/8886360/what-javascript-syntax-highlighter-does-github-use

It's time to explain Thunderbird's relationship to Mozilla again.

Thunderbird is in its own legal entity - MZLA Technologies and is governed in part by a Community Council elected by and from our open source contributors.

Thunderbird is currently 100% donation-funded. We do not receive any money outside what our donors give us.

This is good for Thunderbird and makes us unique. Our whole structure only works to serve the interests of our users and contributor community.

70 DIY Synths on One Webpage

https://hackaday.com/2025/04/02/70-diy-synths-on-one-webpage/

[RSS] Time Travel Analysis for fuzzing crash analysis

https://eshard.com/posts/back-to-the-crash

Accidental timing: this one from eShard is different from my previous #TimeTravelDebugging post!

Time Travel Analysis with a full-system android emulator gives you the full picture.

But if you're just looking at one part of an app, a lighter method can be enough.

Here’s how we used Frida to do it: https://eshard.com/posts/frida-tracer-lightweight-time-travel-analysis

#mobilesecurity #android #androidsecurity #reverseengineering

Sorry, I blogged:

Debugging loadlibrary Through Space and Time

https://scrapco.de/blog/debugging-loadlibrary-through-space-and-time.html

#ReverseEngineering #TimeTravelDebugging #rr #ASAN

I wanted to quickly explain why, school kids should learn markdown instead of MS Office, and ended up writing a major Epos on Markdown vs obsolete writing formats:

https://ia.net/topics/markdown-and-the-slow-fade-of-the-formatting-fetish

This is, I kid you not, about 1/6th of what I wrote. I'll publish the rest later.

We're pleased to announce that folks can now contribute financially to the project through GitHub Sponsors! 🎉

https://github.com/sponsors/AsahiLinux

Intel VT-rp
https://community.intel.com/t5/Blogs/Tech-Innovation/Client/Intel-Virtualization-Technology-Redirect-Protection-Intel-VT-rp/post/1672593

"Then CSS came along, it was a fucking miracle." — https://eev.ee/blog/2020/02/01/old-css-new-css/

learned at least 7 different things about the web from this post

Hello friends. The dreaded and long awaiting blog on WHAT THE FUCK HAPPENED TO THE CYBERSECURITY JOBS MARKET has arrived.

https://tisiphone.net/2025/04/01/lesley-what-happened-to-the-cybersecurity-skills-shortage/

I'm sorry.

I enjoyed this idea that authoritarian states are more like the movie Brazil than the book 1984 - because authoritarianism breeds incompetence.

https://observer.com/2025/02/terry-gilliams-brazil-at-40-more-prescient-than-orwell/

oh fuck, val kilmer is dead

This follow-up to CVE-2024-57882 by Solar Designer also worth reading:

https://seclists.org/oss-sec/2025/q2/3

"A reason CVE-2024-57882 may have stayed unpatched in a distro is it could have been wrongly believed to be a NULL pointer dereference only due to a specific crash reported by Syzbot."

"net.mptcp.enabled can be set from inside an unprivileged net namespace"