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104

Researchers uncover critical vulnerability in Microsoft's Multi-Factor Authentication, allowing attackers to gain access to user accounts such as Outlook emails, OneDrive files, Teams chat, and more (www.oasis.security)

submitted 5 days ago* (last edited 5 days ago) by thelucky8@beehaw.org to c/technology@beehaw.org

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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.]

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[–] Miaou@jlai.lu 3 points 3 days ago (1 children)

That's a lot of words to simply admit you were wrong.

[–] N0x0n@lemmy.ml 1 points 1 day ago* (last edited 1 day ago)

How so? From my perspective I'm just saying that yes Microsoft probably doesn't need to implemement such measure, however does that mean that they don't?

But that's always a take people won't argue on because... It's Microsoft, why would they do that? But why not?

That's people hiding behind the benefit of the doubt giving Microsoft a positive opinion given in the absence of full evidence.

Happy holidays.