2021 has not been a great year for Microsoft in terms of security, it seems not a month passes by without some security problem raising its head. This time a flaw in Microsoft’s Azure Cosmos DB database product left more than 3,300 Azure customers open to complete unrestricted access by attackers. The vulnerability was introduced in 2019 when Microsoft added a data visualization feature called Jupyter Notebook to Cosmos DB. The feature was turned on by default for all Cosmos DBs in February 2021.
A listing of Azure Cosmos DB clients includes companies like Coca Cola, Liberty Mutual Insurance, ExxonMobil, and Walgreens, to name just a few.
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