Microsoft Patches Azure Cross-Tenant Data Access Flaw
Microsoft has silently fixed an important-severity security flaw in its Azure Container Service (ACS) after an external researcher warned that a buggy feature allowed cross-tenant network bypass attacks. The vulnerability, documented by researchers at Mnemonic, effectively removed the entire network and identity perimeter around internet-isolated Azure Cognitive Search instances and allowed cross-tenant access to the data plane of ACS instances from any location, including instances without any explicit network exposure. According to Mnemonic researcher Emilien…
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