Elastic Security Detection Rules

GCP IAM Custom Role Creation

Last updated 7 months ago on 2025-01-15
Created 5 years ago on 2020-09-21

About

Identifies an Identity and Access Management (IAM) custom role creation in Google Cloud Platform (GCP). Custom roles are user-defined, and allow for the bundling of one or more supported permissions to meet specific needs. Custom roles will not be updated automatically and could lead to privilege creep if not carefully scrutinized.
Tags
Domain: CloudData Source: GCPData Source: Google Cloud PlatformUse Case: Identity and Access AuditTactic: Initial AccessLanguage: kuery
Severity
medium
Risk Score
47
MITRE ATT&CK™

Initial Access (TA0001)(opens in a new tab or window)

↳ Valid Accounts (T1078)(opens in a new tab or window)

Persistence (TA0003)(opens in a new tab or window)

↳ Valid Accounts (T1078)(opens in a new tab or window)

False Positive Examples
Custom role creations may be done by a system or network administrator. Verify whether the user email, resource name, and/or hostname should be making changes in your environment. Role creations by unfamiliar users or hosts should be investigated. If known behavior is causing false positives, it can be exempted from the rule.
License
Elastic License v2(opens in a new tab or window)

Definition

Rule Type
Query (Kibana Query Language)
Integration Pack
Prebuilt Security Detection Rules
Index Patterns
filebeat-*logs-gcp*
Related Integrations

gcp(opens in a new tab or window)

Query
event.dataset:gcp.audit and event.action:google.iam.admin.v*.CreateRole and event.outcome:success

Install detection rules in Elastic Security

Detect GCP IAM Custom Role Creation in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(opens in a new tab or window).