Oracle - Oracle WebLogic Exploit CVE-2021-2109

OracleWebLogicServerEvent
| where HttpRequestMethod =~ "GET"
| where UrlOriginal has_all ("ldap://", "com.bea.console.handles.JndiBindingHandle", "AdminServer")
| extend UrlCustomEntity = UrlOriginal

relevantTechniques:
- T1190
name: Oracle - Oracle WebLogic Exploit CVE-2021-2109
requiredDataConnectors:
- dataTypes:
  - OracleWebLogicServerEvent
  connectorId: OracleWebLogicServer
- dataTypes:
  - OracleWebLogicServer_CL
  connectorId: CustomLogsAma
entityMappings:
- fieldMappings:
  - identifier: Url
    columnName: UrlCustomEntity
  entityType: URL
triggerThreshold: 0
id: 67950168-5740-11ec-bf63-0242ac130002
tactics:
- InitialAccess
version: 1.0.2
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicExploitCVE-2021-2109.yaml
queryPeriod: 10m
kind: Scheduled
queryFrequency: 10m
severity: High
status: Available
description: |
    'Detects exploitation of Oracle WebLogic vulnerability CVE-2021-2109'
query: |
  OracleWebLogicServerEvent
  | where HttpRequestMethod =~ "GET"
  | where UrlOriginal has_all ("ldap://", "com.bea.console.handles.JndiBindingHandle", "AdminServer")
  | extend UrlCustomEntity = UrlOriginal  
triggerOperator: gt

{
  "$schema": "https://schema.management.azure.com/schemas/2019-04-01/deploymentTemplate.json#",
  "contentVersion": "1.0.0.0",
  "parameters": {
    "workspace": {
      "type": "String"
    }
  },
  "resources": [
    {
      "apiVersion": "2024-01-01-preview",
      "id": "[concat(resourceId('Microsoft.OperationalInsights/workspaces/providers', parameters('workspace'), 'Microsoft.SecurityInsights'),'/alertRules/67950168-5740-11ec-bf63-0242ac130002')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/67950168-5740-11ec-bf63-0242ac130002')]",
      "properties": {
        "alertRuleTemplateName": "67950168-5740-11ec-bf63-0242ac130002",
        "customDetails": null,
        "description": "'Detects exploitation of Oracle WebLogic vulnerability CVE-2021-2109'\n",
        "displayName": "Oracle - Oracle WebLogic Exploit CVE-2021-2109",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "URL",
            "fieldMappings": [
              {
                "columnName": "UrlCustomEntity",
                "identifier": "Url"
              }
            ]
          }
        ],
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/OracleWebLogicServer/Analytic Rules/OracleWebLogicExploitCVE-2021-2109.yaml",
        "query": "OracleWebLogicServerEvent\n| where HttpRequestMethod =~ \"GET\"\n| where UrlOriginal has_all (\"ldap://\", \"com.bea.console.handles.JndiBindingHandle\", \"AdminServer\")\n| extend UrlCustomEntity = UrlOriginal\n",
        "queryFrequency": "PT10M",
        "queryPeriod": "PT10M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "InitialAccess"
        ],
        "techniques": [
          "T1190"
        ],
        "templateVersion": "1.0.2",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}