GitLab - Repository visibility to Public

GitLabAudit
| where SourceVisibility != "Public" and ChangeType == "visibility" and TargetVisibility == "Public"
| project TimeGenerated, EventTime, IPAddress, AuthorName, ChangeType, TargetType, SourceVisibility,  TargetVisibility, EntityName

queryPeriod: 1d
version: 1.0.0
relevantTechniques:
- T1556
queryFrequency: 1h
kind: Scheduled
name: GitLab - Repository visibility to Public
id: 8b291c3d-90ba-4ebf-af2c-0283192d430e
entityMappings:
- fieldMappings:
  - columnName: IPAddress
    identifier: Address
  entityType: IP
- fieldMappings:
  - columnName: AuthorName
    identifier: FullName
  entityType: Account
- fieldMappings:
  - columnName: EntityName
    identifier: Url
  entityType: URL
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitLab/Analytic Rules/GitLab_RepoVisibilityChange.yaml
severity: Medium
query: |
  GitLabAudit
  | where SourceVisibility != "Public" and ChangeType == "visibility" and TargetVisibility == "Public"
  | project TimeGenerated, EventTime, IPAddress, AuthorName, ChangeType, TargetType, SourceVisibility,  TargetVisibility, EntityName  
tactics:
- Persistence
- DefenseEvasion
- CredentialAccess
description: |
    'This query leverages GitLab Audit Logs. A repository in GitLab changed visibility from Private or Internal to Public which could indicate compromise, error or misconfiguration leading to exposing the repository to the public.'
requiredDataConnectors:
- connectorId: Syslog
  dataTypes:
  - Syslog
status: Available
triggerThreshold: 0
triggerOperator: gt

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/8b291c3d-90ba-4ebf-af2c-0283192d430e')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/8b291c3d-90ba-4ebf-af2c-0283192d430e')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01",
      "properties": {
        "displayName": "GitLab - Repository visibility to Public",
        "description": "'This query leverages GitLab Audit Logs. A repository in GitLab changed visibility from Private or Internal to Public which could indicate compromise, error or misconfiguration leading to exposing the repository to the public.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "GitLabAudit\n| where SourceVisibility != \"Public\" and ChangeType == \"visibility\" and TargetVisibility == \"Public\"\n| project TimeGenerated, EventTime, IPAddress, AuthorName, ChangeType, TargetType, SourceVisibility,  TargetVisibility, EntityName\n",
        "queryFrequency": "PT1H",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "Persistence",
          "DefenseEvasion",
          "CredentialAccess"
        ],
        "techniques": [
          "T1556"
        ],
        "alertRuleTemplateName": "8b291c3d-90ba-4ebf-af2c-0283192d430e",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "identifier": "Address",
                "columnName": "IPAddress"
              }
            ],
            "entityType": "IP"
          },
          {
            "fieldMappings": [
              {
                "identifier": "FullName",
                "columnName": "AuthorName"
              }
            ],
            "entityType": "Account"
          },
          {
            "fieldMappings": [
              {
                "identifier": "Url",
                "columnName": "EntityName"
              }
            ],
            "entityType": "URL"
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/GitLab/Analytic Rules/GitLab_RepoVisibilityChange.yaml",
        "status": "Available",
        "templateVersion": "1.0.0"
      }
    }
  ]
}