Microsoft this week confirmed that it inadvertently exposed information related to thousands of customers following a security lapse that left an endpoint publicly accessible over the internet sans any authentication.
“This misconfiguration resulted in the potential for unauthenticated access to some business transaction data corresponding to interactions between Microsoft and prospective customers, such as the planning or potential implementation and provisioning of Microsoft services,” Microsoft said in an alert.
Microsoft also emphasized that the B2B leak was “caused by an unintentional misconfiguration on an endpoint that is not in use across the Microsoft ecosystem and was not the result of a security vulnerability.”
The misconfiguration of the Azure Blob Storage was spotted on September 24, 2022, by cybersecurity company SOCRadar, which termed the leak BlueBleed. Microsoft said it’s in the process of directly notifying impacted customers.
The Windows maker did not reveal the scale of the data leak, but according to SOCRadar, it affects more than 65,000 entities in 111 countries. The exposure amounts to 2.4 terabytes of data that consists of invoices, product orders, signed customer documents, partner ecosystem details, among others.
images from Hacker News