Azure user viewed CosmosDB connection string

azure

Classification:

attack

Tactic:

TA0007-discovery

Technique:

T1580-cloud-infrastructure-discovery

Set up the azure integration.

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Goal

Detect when a user successfully requests to view a CosmoDB connection string with the Azure API. An attacker with the appropriate privileges can view a connection string and use it to access or modify data in the CosmoDB database.

Strategy

Monitor Azure CosmoDB logs where @evt.name is "MICROSOFT.DOCUMENTDB/DATABASEACCOUNTS/LISTCONNECTIONSTRINGS/ACTION" and @evt.outcome is Success.

Triage and response

  1. Verify that the user ({{@usr.name}}) should be viewing the connection string for the following CosmoDB database: ({{@resourceId}}).
  2. If the activity is not expected, investigate the activity around the CosmoDB ({{@resourceId}}).