[New Rule] GCP Kubernetes Rolebindings Created or Patched (#1267)

* Update impact_iam_deactivate_mfa_device.toml https://github.com/elastic/detection-rules/issues/1111 * Update impact_iam_deactivate_mfa_device.toml * Update discovery_post_exploitation_external_ip_lookup.toml "*ipapi.co", "*ip-lookup.net", "*ipstack.com" * Update rules/aws/impact_iam_deactivate_mfa_device.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * Revert "Update discovery_post_exploitation_external_ip_lookup.toml" This reverts commit b57fd60c9511e20a336d32a9c9b8d5cf9954c50e. * Update * New Rule: Okta User Attempted Unauthorized Access * Update privilege_escalation_okta_user_attempted_unauthorized_access.toml * Update privilege_escalation_okta_user_attempted_unauthorized_access.toml * Delete privilege_escalation_okta_user_attempted_unauthorized_access.toml * Create persistence_new-or-modified-federation-domain.toml * Delete persistence_new-or-modified-federation-domain.toml * Create credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update * Update .gitignore Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * Update rules/integrations/gcp/credential_access_gcp_kubernetes_rolebindings_creation.toml Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update credential_access_gcp_kubernetes_rolebindings_creation.toml * Update and rename credential_access_gcp_kubernetes_rolebindings_creation.toml to credential_access_gcp_kubernetes_rolebindings_created_or_patched.toml * Update credential_access_gcp_kubernetes_rolebindings_created_or_patched.toml * Update credential_access_gcp_kubernetes_rolebindings_created_or_patched.toml * Rename credential_access_gcp_kubernetes_rolebindings_created_or_patched.toml to privilege_escalation_gcp_kubernetes_rolebindings_created_or_patched.toml * remove space from query Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> Co-authored-by: Jonhnathan <jonhnathancesar@gmail.com> Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> (cherry picked from commit 27ba204f1c)
2021-10-15 13:42:25 -05:00
parent 8f55556006
commit 8bb2d27451
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+[metadata]
+creation_date = "2021/06/06"
+maturity = "production"
+updated_date = "2021/10/14"
+integration = "gcp"
+
+[rule]
+author = ["Elastic", "Austin Songer"]
+description = """
+Identifies the creation or patching of potential malicious rolebinding. You can assign these roles to Kubernetes subjects 
+(users, groups, or service accounts) with role bindings and cluster role bindings.
+"""
+from = "now-20m"
+index = ["filebeat-*", "logs-gcp*"]
+language = "kuery"
+license = "Elastic License v2"
+name = "GCP Kubernetes Rolebindings Created or Patched "
+note = """## Config
+
+The GCP Fleet integration, Filebeat module, or similarly structured data is required to be compatible with this rule."""
+references = [
+    "https://cloud.google.com/kubernetes-engine/docs/how-to/audit-logging",
+    "https://unofficial-kubernetes.readthedocs.io/en/latest/admin/authorization/rbac/",
+    "https://cloud.google.com/kubernetes-engine/docs/how-to/role-based-access-control",
+]
+risk_score = 47
+rule_id = "2f0bae2d-bf20-4465-be86-1311addebaa3"
+severity = "medium"
+tags = ["Elastic", "Cloud", "GCP", "Continuous Monitoring", "SecOps", "Configuration Audit"]
+timestamp_override = "event.ingested"
+type = "query"
+
+query = '''
+event.dataset:(googlecloud.audit or gcp.audit) and event.action:(io.k8s.authorization.rbac.v*.clusterrolebindings.create or 
+io.k8s.authorization.rbac.v*.rolebindings.create or io.k8s.authorization.rbac.v*.clusterrolebindings.patch or 
+io.k8s.authorization.rbac.v*.rolebindings.patch) and event.outcome:success
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+
+[rule.threat.tactic]
+id = "TA0004"
+name = "Privilege Escalation"
+reference = "https://attack.mitre.org/tactics/TA0004/"
+