Azure Service Tags Vulnerability: Microsoft Warns of Potential Abuse by Hackers
Jun 10, 2024
Cloud Security / Vulnerability
Microsoft is warning about the potential abuse of Azure Service Tags by malicious actors to forge requests from a trusted service and get around firewall rules, thereby allowing them to gain unauthorized access to cloud resources. "This case does highlight an inherent risk in using service tags as a single mechanism for vetting incoming network traffic," the Microsoft Security Response Center (MSRC) said in a guidance issued last week. "Service tags are not to be treated as a security boundary and should only be used as a routing mechanism in conjunction with validation controls. Service tags are not a comprehensive way to secure traffic to a customer's origin and do not replace input validation to prevent vulnerabilities that may be associated with web requests." The statement comes in response to findings from cybersecurity firm Tenable, which found that Azure customers whose firewall rules rely on Azure Service Tags could be bypassed. There is no evidence t...
