レッドチームのメンバーが、Azure 関数から取得したアクセス トークンを使用して Azure PowerShell で認証し、ストレージ アカウント キーを取得します。このシナリオはどのような不正行為を示していますか。
正解:B
CEH cloud security modules highlight that Azure Managed Identities allow workloads such as functions, VMs, and automation tasks to authenticate to Azure resources without storing secrets. If an attacker obtains the token associated with a managed identity, they can impersonate that identity and access any Azure resources it is permitted to use. In this scenario, the captured access token is used to authenticate via Azure PowerShell and retrieve storage account keys, demonstrating unauthorized privilege usage by hijacking the managed identity. This aligns directly with managed identity abuse, where attackers leverage identity tokens instead of user credentials. NSG rule gathering and AzureGraph enumeration are reconnaissance activities, and Stormspotter is used for visualizing attack paths, not abusing identities. Therefore, this scenario clearly illustrates exploitation of managed identities.