this post was submitted on 08 Jan 2024
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This isn’t new at all. This is called session hijacking, and it’s been around for decades.
LTT just made a couple videos about it last year, because it happened to them.
I would guess they invalidate all sessions when password is reset, that part is weird.
Edit: read the thing. The exploit is that they steal some special token chrome stores and by manipulating it they can generate session cookies for the hijacked account. This doesn't seem related to ltt
Wow, this sounds a lot more serious than session hijacking. Are they straight up using Chrome's special token to generate brand new Google Account session tokens?
If so, i'm not sure how Google is going to fix that without wrecking the Chrome user experience for non tech savvy individuals
~~They're using some Google api to generate the cookie(s?) with the manipulated chrome token. To me it kinda sounded like Google is using an improper method to generate the chrome token and the hackers found a way to derive other valid chrome tokens from it.~~ Though I'm not an expert. Read it yourself to get the right picture.
Edit: This is the part of the article about it, rest seems to be about how the hackers encrypted their exploit to avoid detection:
Edit but there's some conflicting information on what to do:
From one of the hack tool changelogs:
I guess Google doesn't invalidate session cookies generated with the chrome token upon a password reset, but the chrome token itself gets invalidated and deletes the session cokkies on the browser side or something? Idk sounds whack
I thought session hijacking could only be done with 1st party cookies from google itself. I didn't know you could session hijack with 3rd party cookies. That's pretty interesting.
The article mentions third party cookies, but it’s talking about hackers stealing first party cookies (specifically authentication cookies).