heroui logo

Azure Blob Permissions Modification

Elastic Detection Rules

View Source
Summary
The Azure Blob Permissions Modification rule detects unauthorized changes to Azure Blob permissions through Azure role-based access control (RBAC). This is critical as attackers may modify these permissions to compromise security, or unintentional changes by admins can lead to data exposure. The rule specifically monitors Azure activity logs for relevant events indicating that permissions on Azure Blob storage have been altered and evaluates their success. Investigating these changes involves analyzing activity logs to trace the user or service principal involved, verifying the legitimacy of the modifications, and determining any potential impacts on data security. False positives can arise from routine administrative activities or automated scripts, necessitating careful examination and potential exceptions to reduce alert fatigue. Additionally, a structured response including immediate corrective actions and heightened monitoring is crucial in mitigating unauthorized access risks.
Categories
  • Cloud
  • Azure
  • Identity Management
Data Sources
  • Cloud Service
  • Logon Session
  • Network Traffic
ATT&CK Techniques
  • T1222
Created: 2021-09-22