[New Rule] Azure Subscription Permission Elevation #1665
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botelastic
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Domain: Cloud Workloads
Integration: Azure
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@austinsonger can you replace the alert JSON with the original event? Thanks! |
w0rk3r
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Apr 27, 2022
rules/integrations/azure/privilege_escalation_azure_subscription_permissions_elevation.toml
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terrancedejesus
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May 20, 2022
w0rk3r
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Jul 18, 2022
rules/integrations/azure/privilege_escalation_azure_subscription_permissions_elevation.toml
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Issues
Resolves #1630
Summary
{ "_id": "06d60dfcfaaba0383ad312f7e1601a74033b27e83a9ff0da7435be48579e28fd", "_index": ".siem-signals-default-000001", "_score": "1", "_type": "_doc", "@timestamp": "2021-12-15T01:31:15.944Z", "agent": { "ephemeral_id": "bf4a9636-200e-4e55-ba76-e6c0729fbdc3", "hostname": "localhost", "id": "9cb9acc4-fb1f-431b-bc2b-60d8f1377bf2", "name": "localhost", "type": "filebeat", "version": "7.15.2" }, "azure-eventhub": { "consumer_group": "$Default", "enqueued_time": "2021-12-15T01:29:58.807Z", "eventhub": "collection01", "offset": "17184500896", "sequence_number": "1356" }, "azure": { "activitylogs": { "category": "Administrative", "event_category": "Administrative", "identity": { "authorization": { "action": "Microsoft.Authorization/classicAdministrators/write", "scope": "/subscriptions/82206d98-e2b8-46f5-955c-3006837acdea/providers/Microsoft.Authorization/classicAdministrators/10032001C02AAD85" } }, "jobId": "SubscriptionUserInfoProvisioningJob-Immediate", "jobType": "SubscriptionUserProvisioningJob", "operation_name": "MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE", "properties": { "adminEmail": "[email protected]", "adminType": "CoAdmin", "entity": "/subscriptions/82206d98-e2b8-46f5-955c-3006837acdea/providers/Microsoft.Authorization/classicAdministrators/10032001C02AAD85", "hierarchy": "", "message": "Microsoft.Authorization/classicAdministrators/write" }, "ReleaseVersion": "6.2021.49.4+156e160.release_2021w49", "result_signature": "Succeeded.", "result_type": "Success", "RoleLocation": "North Central US" }, "correlation_id": "81b6e1d1-da0b-4a0a-9f25-cd91112420f2", "resource": { "id": "/SUBSCRIPTIONS/82206D98-E2B8-46F5-955C-3006837ACDEA/PROVIDERS/MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/10032001C02AAD85", "provider": "MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS" }, "subscription_id": "82206D98-E2B8-46F5-955C-3006837ACDEA" }, "client": { "ip": "23.102.135.247" }, "cloud": { "provider": "azure" }, "data_stream": { "dataset": "azure.activitylogs", "namespace": "default", "type": "logs" }, "ecs": { "version": "1.11.0" }, "elastic_agent": { "id": "9cb9acc4-fb1f-431b-bc2b-60d8f1377bf2", "snapshot": "false", "version": "7.15.2" }, "event": { "action": "MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE", "agent_id_status": "verified", "dataset": "azure.activitylogs", "duration": "0", "ingested": "2021-12-15T01:29:59.000Z", "kind": "signal", "module": "azure", "outcome": "success" }, "geo": { "city_name": "San Antonio", "continent_name": "North America", "country_iso_code": "US", "country_name": "United States", "location": "{\"lon\":-98.4927,\"lat\":29.4227}", "region_iso_code": "US-TX", "region_name": "Texas" }, "host": { "architecture": "x86_64", "containerized": "false", "hostname": "localhost", "id": "d3d879bac36a47e5b0dec3c22e451c66", "ip": "74.207.237.102,2600:3c02::f03c:92ff:fe5f:82a5,fe80::f03c:92ff:fe5f:82a5", "mac": "f2:3c:92:5f:82:a5", "name": "localhost", "os": { "codename": "buster", "family": "debian", "kernel": "4.19.0-18-amd64", "name": "Debian GNU/Linux", "platform": "debian", "type": "linux", "version": "10 (buster)" } }, "input": { "type": "azure-eventhub" }, "kibana": { "alert": { "ancestors": { "depth": "0", "id": "nwK1u30BG-c0K3YA5ZAe", "index": ".ds-logs-azure.activitylogs-default-2021.12.11-000001", "type": "event" }, "depth": "1", "original_event": { "action": "MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE", "dataset": "azure.activitylogs", "duration": "0", "kind": "event", "module": "azure", "outcome": "success" }, "original_time": "2021-12-15T01:20:23.092Z", "reason": "event on localhost created medium alert Azure Subscription Permissions Elevation.", "risk_score": "47", "rule": { "author": "Austin Songer", "created_at": "2021-12-15T00:05:22.302Z", "created_by": "1366449198", "description": "Identifies when a user has been elevated to manage all Azure Subscriptions. This setting could allow an attacker access to Azure subscriptions in your environment.", "enabled": "true", "from": "now-1800s", "immutable": "false", "index": "filebeat-*,logs-azure*", "interval": "5m", "language": "kuery", "license": "", "max_signals": "100", "name": "Azure Subscription Permissions Elevation", "query": "event.dataset:azure.activitylogs and azure.activitylogs.operation_name:*/ROLEASSIGNMENTS/WRITE and azure.activitylogs.properties:*18d7d88d-d35e-4fb5-a5c3-7773c20a72d9* or \nazure.activitylogs.operation_name: (MICROSOFT.AUTHORIZATION/ELEVATEACCESS/ACTION or MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE)", "rule_id": "86522dce-6179-4c86-92ce-e1387efd23d8", "tags": "Azure", "to": "now", "type": "query", "updated_at": "2021-12-15T01:30:49.126Z", "updated_by": "1366449198", "uuid": "b1ee8d10-5d3a-11ec-9afd-51a00f4042ed", "version": "7" }, "severity": "medium", "workflow_status": "open" } }, "log": { "level": "Information" }, "related": { "ip": "23.102.135.247" }, "signal": { "_meta": { "version": "57" }, "ancestors": "{\"id\":\"nwK1u30BG-c0K3YA5ZAe\",\"type\":\"event\",\"index\":\".ds-logs-azure.activitylogs-default-2021.12.11-000001\",\"depth\":0}", "depth": "1", "original_event": { "action": "MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE", "agent_id_status": "verified", "dataset": "azure.activitylogs", "duration": "0", "ingested": "2021-12-15T01:29:59Z", "kind": "event", "module": "azure", "outcome": "success" }, "original_time": "2021-12-15T01:20:23.092Z", "parent": { "depth": "0", "id": "nwK1u30BG-c0K3YA5ZAe", "index": ".ds-logs-azure.activitylogs-default-2021.12.11-000001", "type": "event" }, "parents": "{\"id\":\"nwK1u30BG-c0K3YA5ZAe\",\"type\":\"event\",\"index\":\".ds-logs-azure.activitylogs-default-2021.12.11-000001\",\"depth\":0}", "reason": "event on localhost created medium alert Azure Subscription Permissions Elevation.", "rule": { "actions": "", "author": "Austin Songer", "created_at": "2021-12-15T00:05:22.302Z", "created_by": "1366449198", "description": "Identifies when a user has been elevated to manage all Azure Subscriptions. This setting could allow an attacker access to Azure subscriptions in your environment.", "enabled": "true", "exceptions_list": "", "false_positives": "", "filters": "", "from": "now-1800s", "id": "b1ee8d10-5d3a-11ec-9afd-51a00f4042ed", "immutable": "false", "index": "filebeat-*,logs-azure*", "interval": "5m", "language": "kuery", "license": "", "max_signals": "100", "meta": { "from": "25m", "kibana_siem_app_url": "" }, "name": "Azure Subscription Permissions Elevation", "output_index": ".siem-signals-default", "query": "event.dataset:azure.activitylogs and azure.activitylogs.operation_name:*/ROLEASSIGNMENTS/WRITE and azure.activitylogs.properties:*18d7d88d-d35e-4fb5-a5c3-7773c20a72d9* or \nazure.activitylogs.operation_name: (MICROSOFT.AUTHORIZATION/ELEVATEACCESS/ACTION or MICROSOFT.AUTHORIZATION/CLASSICADMINISTRATORS/WRITE)", "references": "", "risk_score": "47", "risk_score_mapping": "", "rule_id": "86522dce-6179-4c86-92ce-e1387efd23d8", "severity": "medium", "severity_mapping": "", "tags": "Azure", "threat": "", "timestamp_override": "event.ingested", "to": "now", "type": "query", "updated_at": "2021-12-15T01:30:49.126Z", "updated_by": "1366449198", "version": "7" }, "status": "open" }, "source": { "as": { "number": "8075", "organization": { "name": "MICROSOFT-CORP-MSN-AS-BLOCK" } }, "geo": { "city_name": "San Antonio", "continent_name": "North America", "country_iso_code": "US", "country_name": "United States", "location": "{\"lon\":-98.4927,\"lat\":29.4227}", "region_iso_code": "US-TX", "region_name": "Texas" }, "ip": "" }, "tags": "azure-activitylogs" }Contributor checklist