Egregoros

Signal feed

Kevin Beaumont

@GossiTheDog@cyberplace.social

Cybersecurity weather person and award winning shitposter. Shitposting is an anagram of Top Insights. You may be surprised to know I am not representing my employer here and these are not their opinions.

I have Direct Messages disabled - you can send them, but I will never receive them.

Posts

Latest notes

Regarding CVE-2026-42945 in nginx - no modern (or even old) Linux distribution runs nginx without ASLR.

The way the PoC exploit works is they spawn nginx like this:

> exec setarch x86_64 -R /nginx-src/build/nginx -p /app -c /app/nginx.conf

Setarch -R disables ASLR. I've had a look through Github and I can't find any other software which actually does this for nginx either.

So, cool, sweet technical vuln - it's valid - but the RCE apocalypse ain't coming.

CVE-2026-42945 - Nginx (otherwise branded Nginx Rift)

It relies on a specific Nginx config to be vulnerable, and for attacker to know or discover the config to exploit it. To reach RCE, also ASLR needs to have been disabled on the box.

The PoC they've built specifically disabled ASLR, deploys a specifically vulnerable config and the exploit knows about the vulnerable config endpoint.

I have a theory about when the business world went to shit.

At the beginning of 2021.

Reddit bros realised they could inflate the value of GameStop - a business selling physical video games which is as doomed as Blockbuster - by just... vibing and pretending.

And now everybody just vibes and pretends across business. Everybody knows everything is bullshit, e.g. GenAI's largely bullshit... but as long as we vibe along, who cares!

GameStop's worth $11bn (lol) and they swapped CEO to a bro.

When I did the promotion for the Firefly movie back in 2005, Universal gave the website and Browncoats stuff to me (unpaid) and instead spent the marketing money on merchandise to give out.

Unfortunately they got the website name wrong and printed a porn site name on everything, so it had to be destroyed.