Wiz SAML Identity Provider Change

AnalysisType: rule
RuleID: Wiz.SAML.Identity.Provider.Change
Description: This rule detects creations, updates and deletions of SAML identity providers.
DisplayName: Wiz SAML Identity Provider Change
Runbook: Verify that this change was planned. If not, revert the change and ensure this doesn't happen again.
Reference: https://support.wiz.io/hc/en-us/articles/5644029716380-Single-Sign-on-SSO-Overview
Enabled: true
Filename: wiz_saml_identity_provider_change.py
Severity: High
Reports:
  MITRE ATT&CK:
    - TA0004:T1484.002 # Domain or Tenant Policy Modification: Trust Modification 
LogTypes:
  - Wiz.Audit
DedupPeriodMinutes: 60
Threshold: 1
Tests:
  - Name: DeleteSAMLIdentityProvider
    ExpectedResult: true
    Log:
      {
        "id": "0fc891d1-c2e3-4db2-b896-7af27964c71b",
        "action": "DeleteSAMLIdentityProvider",
        "requestId": "eec733c5-175c-4d0c-8b65-b9344f223a36",
        "status": "SUCCESS",
        "timestamp": "2024-07-12T08:59:33.946633Z",
        "actionParameters": {
          "input": {
            "id": "<redacted>"
          },
          "selection": [
            "_stub"
          ]
        },
        "userAgent": "Wiz-Terraform-Provider/1.13.3433",
        "sourceIP": "12.34.56.78",
        "serviceAccount": {
          "id": "<redacted>",
          "name": "test-graphql-api"
        },
        "user": null
      }
  - Name: CreateUser
    ExpectedResult: false
    Log:
      {
        "id": "220d23be-f07c-4d97-b4a6-87ad04eddb14",
        "action": "CreateUser",
        "requestId": "0d9521b2-c3f8-4a73-bf7c-20257788752e",
        "status": "SUCCESS",
        "timestamp": "2024-07-29T09:40:15.66643Z",
        "actionParameters": {
          "input": {
            "assignedProjectIds": null,
            "email": "testy@company.com",
            "expiresAt": null,
            "name": "Test User",
            "role": "GLOBAL_ADMIN"
          },
          "selection": [
            "__typename",
            {
              "user": [
                "__typename",
                "id"
              ]
            }
          ]
        },
        "userAgent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36",
        "sourceIP": "8.8.8.8",
        "serviceAccount": null,
        "user": {
          "id": "someuser@company.com",
          "name": "someuser@company.com"
        }
      }
  - Name: DeleteSAMLIdentityProvider - Fail
    ExpectedResult: false
    Log:
      {
        "id": "0fc891d1-c2e3-4db2-b896-7af27964c71b",
        "action": "DeleteSAMLIdentityProvider",
        "requestId": "eec733c5-175c-4d0c-8b65-b9344f223a36",
        "status": "FAILED",
        "timestamp": "2024-07-12T08:59:33.946633Z",
        "actionParameters": { },
        "userAgent": "Wiz-Terraform-Provider/1.13.3433",
        "sourceIP": "12.34.56.78",
        "serviceAccount": {
          "id": "<redacted>",
          "name": "test-graphql-api"
        },
        "user": null
      }


# ------ paired body: wiz_saml_identity_provider_change.py ------

from panther_wiz_helpers import wiz_actor, wiz_alert_context, wiz_success

SUSPICIOUS_ACTIONS = [
    "UpdateSAMLIdentityProvider",
    "DeleteSAMLIdentityProvider",
    "CreateSAMLIdentityProvider",
    "ModifySAMLIdentityProviderGroupMappings",
]


def rule(event):
    if not wiz_success(event):
        return False
    return event.get("action", "ACTION_NOT_FOUND") in SUSPICIOUS_ACTIONS


def title(event):
    actor = wiz_actor(event)

    return (
        f"[Wiz]: [{event.get('action', 'ACTION_NOT_FOUND')}] action "
        f"performed by {actor.get('type')} [{actor.get('name')}]"
    )


def dedup(event):
    return event.get("id")


def alert_context(event):
    return wiz_alert_context(event)