The error on Microsoft's login system allows hackers to take control of any Office account

There are a number of vulnerabilities in Microsoft's login system that if hackers combine them, they can create a complete attack method that allows anyone to gain access to Microsoft accounts when they click. a scam link.

Sahad Nk, a bug hunting expert in India has captured "success.office.com" - a Microsoft subdomain after discovering that the domain name is not set according to the necessary standards.

Next Nk points the domain "success.office.com" into his Azure field via a CNAME record to control the subdomain and any data sent to it.

The error on Microsoft's login system allows hackers to take control of any Office account Picture 1

We also noticed that, after users log in via Microsoft Live login system, it is possible to 'trick' Microsoft Office, Store and Sway applications to send login credentials to your new domain. control. Having an authentication code means that someone's account login information is included, including a two-factor authentication account. This allows bad guys to easily penetrate users' accounts without being detected.

Earlier this year, Facebook also suffered a similar vulnerability and caused 30 million user accounts to leak.

However, the Microsoft vulnerability is even more dangerous, which can adversely affect countless accounts because bad guys can access any Office account, including those of businesses / entrepreneurs while users Still logged in through Microsoft system and almost impossible to trace the culprit.

Nk, with the help of Paulos Yibelo, sent a report about this vulnerability to Microsoft so they could fix it.

Microsoft confirmed this vulnerability in November 2018 and handled it by deleting the CNAME record that points to Nk's Azure field.

Because of this discovery, Microsoft awarded Nk a prize but it is unclear how much the reward is.

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