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Can I refuse MS Authenticator?
(lemmy.ml)
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this post was submitted on 30 May 2024
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Asklemmy
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Yeah but that's a wholly different attack, and oodles more complex to pull off. Doable, sure. But it's absolutely not the same thing as phishing for a valid 2FA code that is generated user-side.
And don't get me wrong, both are overall very security. But there is a case to be made for push auth.
It's not that different is it? You still need to get a user to share/enter a live code?
One requires the user to go to a bad page and get a spoofed 2FA code so the bad guy can log in.
Do you know how hard that is? Not worth it for 99% of hacks.
The other requires that the user read off their six digit code on their device.
Trivial easy since they already have the user’s password.
It requires the bad guy to go to the page and ask the user to enter the code the bad guy gets
How does the bad guy get to the page?
Then how does he get the user to enter in that code into their mobile device?
You can probably get the URL for a companies SharePoint pretty easily, but you need a login. You are able to get a PAs credentials through a phishing link etc but need the 2fa code.
You do the IT phishing attack (enter this code for me to fix your laptop being slow...), get them to enter the code and now you have access to a SharePoint instance full of confidential docs etc.
I'm not saying it's a great attack vector, but it's not that different to a standard phishing attack.
You could attack anything that's using the single sign on. Attack their build infrastructure and you now have a supply chain attack against all of their customers etc.
It helps but its not enough to counter the limits of human gullibility.