Source: Security.nl
The recent vulnerability in Microsoft Entra ID has now been rated at the maximum CVSS score of 10.0. Once again, this highlights the enormous risks surrounding identity and access management. With just a single token, it was theoretically possible to gain access to almost any Entra ID environment, including Global Admins. While Microsoft quickly rolled out updates, this incident underscores a critical point: blind reliance on patches is not enough.
Vendors may provide updates and mitigations, but the responsibility lies with organizations to actively monitor their own environments. Especially in the period between discovery, patching, and public disclosure, the risk of exploitation is at its highest. Without monitoring, one essential question remains unanswered: has something already happened in our environment?
Our advice
• Actively monitor access management: know who has access to which information, and why.
• Stay vigilant, even after patches: detect anomalies such as unusual login locations, irregular token requests, or unexpected access to sensitive data.
• Classify data and assets: determine which information is critical so that monitoring can be targeted and effective.
The conclusion is clear: identities are the core of the digital organization. Patches close vulnerabilities, but only active monitoring ensures that misuse does not go unnoticed.
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