I could've accessed 17T Microsoft records

236 points - last Monday at 8:32 PM

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Comments

john_strinlai today at 4:07 PM
>Microsoft had editorial control over this post, cutting sections and figures and reshaping how the impact is described before publication.

that is... not great. shame on microsoft.

its actions like that which shed light on why we get the nighmare eclipses of the world. pressuring a kid into handing over full editorial control of a disclosure is gross.

sdfhbdf today at 3:44 PM
> awarded $5000

It's a little perplexing. Of course it's always a controversial topic since it's difficult to value an exploit, but whenever we read about these online, which probably goes through some survivorship bias, they seem pretty low.

On https://www.microsoft.com/en-us/msrc/bounty it seems the top is $100,000 or $250,000 depending which program this counts under.

What does HN think? Why would it be only $5000?

throwaway2037 today at 4:08 PM

    > Hey! I’m Faav. A little over a year ago, when I was 15, I published Break into any Microsoft building: Leaking PII in Microsoft Guest Check-In, my first Microsoft write-up. I’m 16 now, and this one is a little bigger.
Damn, these guys got schooled by a 15 year old! Say less...
verst today at 4:07 PM
There is an internal library at Microsoft that reliably avoids all these JWT problems - Microsoft Identity Service Essentials (MISE). Adopting MISE and upgrading to the latest versions of it have been part of the Secure Future Initiative (SFI) that can be read about in the news of previous years. Unfortunately it sounds like the service team intentionally deferred the compliance alerts they will have received.
rdtsc today at 4:23 PM
> {"alg":"none","typ":"JWT"}

I don't know how this ever became a thing that was allowed into the spec and then picked from the spec and implemented in various implementations.

er0k today at 3:53 PM
wow I am so surprised to hear once again how JWTs are terrible

https://www.howmanydayssinceajwtalgnonevuln.com/

f311a today at 3:26 PM
What is Antares? Can't find anything related to it except for the 1B model, which does not seem to be capable of autoresearch.

UPD: It's his personal bot.

zk today at 9:51 PM
The kicker... only 5k reward for this is insane. That said probably the attacker didn't need to run as many queries as they did...

09/17/26 - Awarded $5,000

khalic today at 3:49 PM
You’re going places kid :) keep up the good work
jdw64 today at 10:42 PM
I wish I had that kind of talent when I was 16 too... I'm jealous.

And it's really amazing. I wish I could think like that, and it's impressive how deeply you immerse yourself in it.

moat today at 5:49 PM
This kid is 16?

Can’t wait to see what he’s up to in 10 years.

darepublic today at 10:10 PM
> I’m 16 now, and this one is a little bigger.

Holy! Child prodigy

charcircuit today at 8:41 PM
Seriously, who is responsible for "none" JWT tokens. It has caused so many critical security bugs over the years.
froggertoaster today at 7:23 PM
Geohot vibes
advael today at 5:24 PM
This is a pretty typical example of the security posture of microsoft, and yet people continually buy their arguments that open-source and therefore auditable alternatives are inherently less secure than their "trust me bro"
deleted today at 8:59 PM
sdcfgy today at 3:55 PM
Wait until someone does that to your favourite cloud provider's customer data.
gnarlouse today at 5:13 PM
If a 15yo can find it
nenadg today at 5:02 PM
You should have.
starkeeper today at 6:42 PM
Only $5K when you saved them millions. Pretty cheap!
sophietaylor today at 4:14 PM
[flagged]
huflungdung today at 7:00 PM
[dead]
ltbarcly3 today at 3:21 PM
[flagged]
Kuyawa today at 3:48 PM
Next time you find a bug like that, offer it to the black market, you could make millions instead of measly salty peanuts