this post was submitted on 10 Jul 2023

3294 points (99.3% liked)

Lemmy.World Announcements

30160 readers

12 users here now

This Community is intended for posts about the Lemmy.world server by the admins.

Follow us for server news 🐘

Outages 🔥

https://status.lemmy.world/

For support with issues at Lemmy.world, go to the Lemmy.world Support community.

Support e-mail

Any support requests are best sent to info@lemmy.world e-mail.

Report contact

DM https://lemmy.world/u/lwreport
Email report@lemmy.world (PGP Supported)

Donations 💗

If you would like to make a donation to support the cost of running this platform, please do so at the following donation URLs.

If you can, please use / switch to Ko-Fi, it has the lowest fees for us

Join the team

founded 2 years ago

MODERATORS

ruud@lemmy.world

lwadmin@lemmy.world

lwCET@lemmy.world

jelloeater85@lemmy.world

Serinus@lemmy.world

lw_mod_notification@lemmy.world

Thekingoflorda@lemmy.world

3294

Lemmy.world (and some others) were hacked (lemmy.world)

submitted 2 years ago* (last edited 2 years ago) by ruud@lemmy.world to c/lemmyworld@lemmy.world

722 comments fedilink hide all child comments

While I was asleep, apparently the site was hacked. Luckily, (big) part of the lemmy.world team is in US, and some early birds in EU also helped mitigate this.

As I am told, this was the issue:

There is an vulnerability which was exploited
Several people had their JWT cookies leaked, including at least one admin
Attackers started changing site settings and posting fake announcements etc

Our mitigations:

We removed the vulnerability
Deleted all comments and private messages that contained the exploit
Rotated JWT secret which invalidated all existing cookies

The vulnerability will be fixed by the Lemmy devs.

Details of the vulnerability are here

Many thanks for all that helped, and sorry for any inconvenience caused!

Update While we believe the admins accounts were what they were after, it could be that other users accounts were compromised. Your cookie could have been 'stolen' and the hacker could have had access to your account, creating posts and comments under your name, and accessing/changing your settings (which shows your e-mail).

For this, you would have had to be using lemmy.world at that time, and load a page that had the vulnerability in it.

(page 8) 50 comments

sorted by: hot top controversial new old

[–] Kyoyeou@lemmy.world 3 points 2 years ago (2 children)

May I ask was is the JWS coockinand if it is automatically changed or if we have to change it in a way?

load more comments (2 replies)

[–] Simodeus@lemmy.world 3 points 2 years ago* (last edited 2 years ago) (1 children)

It seems that I lost all my subs. There were not many but still annoying.

E: Still subbed but can't see those in Voyager.

[–] vampyre@lemmy.world 2 points 2 years ago* (last edited 2 years ago)

I thought I’d lost mine too, and when I checked the community I wasn’t subbed. I could still view my profile, comments and posts though.

I cleared the cache, then tried to post here and it said I was logged out (even though I could see all my activity except subs). I couldn’t see any way to logout, so I edited my profile and re-entered my password then hit save. That seems to have fixed it, now I can post and my subs are back.

[–] aqua@lemmy.world 3 points 2 years ago (10 children)

Should I change passwords or no?

[–] hyorvenn@lemmy.world 3 points 2 years ago (1 children)

If you have to ask, just change it. It's free and quick, and it's good practice.

load more comments (1 replies)

load more comments (9 replies)

[–] Tom2day@lemmy.world 3 points 2 years ago (3 children)

Hmm. Liftoff won't let me post but shows logged in and as a newbie be damned if I can find where to log out.

load more comments (3 replies)

[–] daniskarma@lemmy.world 3 points 2 years ago

Thanks for the quick response! This admin team rules!

[–] NausetJF@lemmy.world 3 points 2 years ago (2 children)

I appreciate the transparency. Hopefully with more eyes on the source code hacks like this will not happen again.

load more comments (2 replies)

[–] Rooki@lemmy.world 2 points 2 years ago* (last edited 2 years ago) (1 children)

Is there a rough time range when it happened? and any news about other big instances like lemmy.ml? Are those safe? Currently they are not on the same version as lemmy.world.

load more comments (1 replies)

[–] donut4ever@sh.itjust.works 2 points 2 years ago (6 children)

Still unable to log in. Is this everyone or just me?

load more comments (6 replies)

[–] hacktheegg@programming.dev 2 points 2 years ago

Huh, i think i got lucky by forgetting that there is something i can consume other than youtube

[–] downpunxx@lemmy.world 2 points 2 years ago

******* This happened to me, one of my posts had it's photo deleted (I didn't delete it), then when I replaced it, the next time I checked the entire post had been deleted.

[–] possiblylinux127@lemmy.zip 2 points 2 years ago (1 children)

This seems way worse than they are making it sound.

[–] vd1n@lemmy.ml 2 points 2 years ago* (last edited 2 years ago)

Sucks for them I've been sending a virus to my own account pretending I'm not me...

well I guess it's our account now...

...does this mean I'm gay?

[–] sheetmysharts@lemmy.world 2 points 2 years ago

Thanks to everyone involved for the quick response 👍

[–] mourkeer@lemmy.world 2 points 2 years ago (2 children)

I lost some of my post history. Is there a data issue that's come from this? Why are my comments gone?

load more comments (2 replies)

[–] favrion@lemmy.world 2 points 2 years ago (11 children)

Is that why Liftoff wasn't loading?

load more comments (11 replies)

load more comments