this post was submitted on 20 Dec 2024
105 points (100.0% liked)

Technology

37804 readers
242 users here now

A nice place to discuss rumors, happenings, innovations, and challenges in the technology sphere. We also welcome discussions on the intersections of technology and society. If it’s technological news or discussion of technology, it probably belongs here.

Remember the overriding ethos on Beehaw: Be(e) Nice. Each user you encounter here is a person, and should be treated with kindness (even if they’re wrong, or use a Linux distro you don’t like). Personal attacks will not be tolerated.

Subcommunities on Beehaw:


This community's icon was made by Aaron Schneider, under the CC-BY-NC-SA 4.0 license.

founded 2 years ago
MODERATORS
 

Archived

Here is the report (pdf) -- (archived)

Oasis Security's research team uncovered a critical vulnerability in Microsoft's Multi-Factor Authentication (MFA) implementation, allowing attackers to bypass it and gain unauthorized access to the user’s account, including Outlook emails, OneDrive files, Teams chats, Azure Cloud, and more. Microsoft has more than 400 million paid Office 365 seats, making the consequences of this vulnerability far-reaching.

The bypass was simple: it took around an hour to execute, required no user interaction and did not generate any notification or provide the account holder with any indication of trouble.

[Edit to insert the original link to the Oasis site.]

you are viewing a single comment's thread
view the rest of the comments
[–] maxprime@lemmy.ml 36 points 1 week ago (5 children)

MS Auth has got to be the worst 2FA I’ve ever used.

My workplace has it set up where I have to input a second factor several times a day on each device. It’s agonizing.

[–] ObstreperousCanadian@lemmy.ca 12 points 6 days ago

My biggest annoyance with that is that the prompt doesn't tell you which application it's asking for. Is it Outlook? Is it Teams? Is it OneDrive? Or something that shouldn't be asking for 2fa?

[–] Megaman_EXE@beehaw.org 2 points 5 days ago

What 2FA do you prefer? I've been thinking of looking for an alternative

[–] seang96@spgrn.com 8 points 6 days ago

The second part is literally your workplace though the defaults for timeouts on that are low on O365.

[–] ramble81@lemm.ee 6 points 6 days ago

That’s not an MS thing, that’s the way your admins configured it. There are methods for doing system wide, once every X hours authentication, but chances are they don’t know that or went overkill with the settings to “be more secure”

[–] narc0tic_bird@lemm.ee 25 points 1 week ago (1 children)

Same here. I feel like having to enter it so many times isn't just more annoying but also makes the users more susceptible to phishing attacks ad they'll naturally pay less attention where they're entering the 2FA code into when they do it so routinely.

[–] maxprime@lemmy.ml 16 points 1 week ago

Yes totally.

And why do I have to 2FA on my phone? It’s not 2F when it’s the same device.