CYFIRMA - Attack Surface - DomainIP Vulnerability Exposure High Rule

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Id	fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e
Rulename	CYFIRMA - Attack Surface - Domain/IP Vulnerability Exposure High Rule
Description	“This rule is triggered when CYFIRMA identifies publicly exposed vulnerabilities on domains or IP addresses within your organization’s attack surface. These vulnerabilities may include outdated software, missing patches, insecure services, or misconfigurations that can be exploited by threat actors.Such exposure significantly increases the risk of exploitation, lateral movement, or data breach. Immediate investigation and remediation are recommended.”
Severity	High
Tactics	InitialAccess Discovery DefenseEvasion Persistence Execution Impact PrivilegeEscalation
Techniques	T1505 T1068 T1046 T1499
Required data connectors	CyfirmaAttackSurfaceAlertsConnector
Kind	Scheduled
Query frequency	5m
Query period	5m
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Attack%20Surface/Analytic%20Rules/ASDomainIPVulnerabilitiesHighRule.yaml
Version	1.0.1
Arm template	fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e.json

KQL

// High Severity Domain/IP Vulnerability Exposure Detected
let timeFrame = 5m;
CyfirmaASDomainIPVulnerabilityAlerts_CL
| where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
| mv-expand pvuln = possible_vulnerabilities
| extend cve = tostring(pvuln.cveNo), vulProducts = pvuln.products
| mv-expand vul_Products = vulProducts
| summarize cveList = make_set(cve, 100), vul_products1 = make_set(vul_Products, 100)    by uid
| join kind=inner (CyfirmaASDomainIPVulnerabilityAlerts_CL
    | where severity == 'Critical'
    | summarize arg_max(TimeGenerated, *) by uid)
    on uid
| extend
    Vulnerabilities = strcat_array(cveList, ', '),
    VulnerabilityProducts = strcat_array(vul_products1, ', '),
    Description=description,
    FirstSeen=first_seen,
    LastSeen=last_seen,
    RiskScore=risk_score,
    Domain=sub_domain,
    TopDomain=top_domain,
    NetworkIP=ip,
    AlertUID=alert_uid,
    UID=uid,
    OpenPorts=open_ports,
    HostProvider=host_provider,
    Country=country,
    Softwares=softwares,
    WebServer=web_server,
    WebServerVersion=web_server_version,
    ProviderName='CYFIRMA',
    ProductName='DeCYFIR/DeTCT'
| project
    TimeGenerated,
    Description,
    Domain,
    TopDomain,
    RiskScore,
    FirstSeen,
    LastSeen,
    NetworkIP,
    AlertUID,
    UID,
    Vulnerabilities,
    VulnerabilityProducts,
    OpenPorts,
    HostProvider,
    Country,
    Softwares,
    WebServer,
    WebServerVersion,
    ProviderName,
    ProductName

YAML

customDetails:
  RiskScore: RiskScore
  Country: Country
  AlertUID: AlertUID
  WebServer: WebServer
  Vulnerabilities: Vulnerabilities
  LastSeen: LastSeen
  vulnerableProducts: VulnerabilityProducts
  FirstSeen: FirstSeen
  OpenPorts: OpenPorts
  HostProvider: HostProvider
  UID: UID
  WebServerVersion: WebServerVersion
  Softwares: Softwares
  TimeGenerated: TimeGenerated
entityMappings:
- entityType: DNS
  fieldMappings:
  - columnName: Domain
    identifier: DomainName
- entityType: Host
  fieldMappings:
  - columnName: TopDomain
    identifier: HostName
  - columnName: Domain
    identifier: DnsDomain
- entityType: IP
  fieldMappings:
  - columnName: NetworkIP
    identifier: Address
tactics:
- InitialAccess
- Discovery
- DefenseEvasion
- Persistence
- Execution
- Impact
- PrivilegeEscalation
status: Available
queryPeriod: 5m
queryFrequency: 5m
incidentConfiguration:
  createIncident: true
  groupingConfiguration:
    enabled: false
    lookbackDuration: PT5H
    matchingMethod: AllEntities
    reopenClosedIncident: false
requiredDataConnectors:
- connectorId: CyfirmaAttackSurfaceAlertsConnector
  dataTypes:
  - CyfirmaASDomainIPVulnerabilityAlerts_CL
severity: High
relevantTechniques:
- T1505
- T1068
- T1046
- T1499
name: CYFIRMA - Attack Surface - Domain/IP Vulnerability Exposure High Rule
kind: Scheduled
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Attack%20Surface/Analytic%20Rules/ASDomainIPVulnerabilitiesHighRule.yaml
eventGroupingSettings:
  aggregationKind: AlertPerResult
description: |
  "This rule is triggered when CYFIRMA identifies publicly exposed vulnerabilities on domains or IP addresses within your organization's attack surface. These vulnerabilities may include outdated software, missing patches, insecure services, or misconfigurations that can be exploited by threat actors.Such exposure significantly increases the risk of exploitation, lateral movement, or data breach. Immediate investigation and remediation are recommended."
triggerOperator: gt
alertDetailsOverride:
  alertDynamicProperties:
  - alertProperty: ProductName
    value: ProductName
  - alertProperty: ProviderName
    value: ProviderName
  alertDescriptionFormat: CYFIRMA - High Severity Domain/IP Vulnerability Exposure Detected - {{Description}}
  alertDisplayNameFormat: 'CYFIRMA - High Severity Domain/IP Vulnerability Exposure Detected - Domain: {{Domain}}, IP: {{NetworkIP}}'
id: fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e
version: 1.0.1
triggerThreshold: 0
query: |
  // High Severity Domain/IP Vulnerability Exposure Detected
  let timeFrame = 5m;
  CyfirmaASDomainIPVulnerabilityAlerts_CL
  | where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())
  | mv-expand pvuln = possible_vulnerabilities
  | extend cve = tostring(pvuln.cveNo), vulProducts = pvuln.products
  | mv-expand vul_Products = vulProducts
  | summarize cveList = make_set(cve, 100), vul_products1 = make_set(vul_Products, 100)    by uid
  | join kind=inner (CyfirmaASDomainIPVulnerabilityAlerts_CL
      | where severity == 'Critical'
      | summarize arg_max(TimeGenerated, *) by uid)
      on uid
  | extend
      Vulnerabilities = strcat_array(cveList, ', '),
      VulnerabilityProducts = strcat_array(vul_products1, ', '),
      Description=description,
      FirstSeen=first_seen,
      LastSeen=last_seen,
      RiskScore=risk_score,
      Domain=sub_domain,
      TopDomain=top_domain,
      NetworkIP=ip,
      AlertUID=alert_uid,
      UID=uid,
      OpenPorts=open_ports,
      HostProvider=host_provider,
      Country=country,
      Softwares=softwares,
      WebServer=web_server,
      WebServerVersion=web_server_version,
      ProviderName='CYFIRMA',
      ProductName='DeCYFIR/DeTCT'
  | project
      TimeGenerated,
      Description,
      Domain,
      TopDomain,
      RiskScore,
      FirstSeen,
      LastSeen,
      NetworkIP,
      AlertUID,
      UID,
      Vulnerabilities,
      VulnerabilityProducts,
      OpenPorts,
      HostProvider,
      Country,
      Softwares,
      WebServer,
      WebServerVersion,
      ProviderName,
      ProductName

ARM

{
  "$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/fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e')]",
      "kind": "Scheduled",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e')]",
      "properties": {
        "alertDetailsOverride": {
          "alertDescriptionFormat": "CYFIRMA - High Severity Domain/IP Vulnerability Exposure Detected - {{Description}}",
          "alertDisplayNameFormat": "CYFIRMA - High Severity Domain/IP Vulnerability Exposure Detected - Domain: {{Domain}}, IP: {{NetworkIP}}",
          "alertDynamicProperties": [
            {
              "alertProperty": "ProductName",
              "value": "ProductName"
            },
            {
              "alertProperty": "ProviderName",
              "value": "ProviderName"
            }
          ]
        },
        "alertRuleTemplateName": "fbe4f5e0-d93e-4c93-8cf9-925eb8ea7f2e",
        "customDetails": {
          "AlertUID": "AlertUID",
          "Country": "Country",
          "FirstSeen": "FirstSeen",
          "HostProvider": "HostProvider",
          "LastSeen": "LastSeen",
          "OpenPorts": "OpenPorts",
          "RiskScore": "RiskScore",
          "Softwares": "Softwares",
          "TimeGenerated": "TimeGenerated",
          "UID": "UID",
          "Vulnerabilities": "Vulnerabilities",
          "vulnerableProducts": "VulnerabilityProducts",
          "WebServer": "WebServer",
          "WebServerVersion": "WebServerVersion"
        },
        "description": "\"This rule is triggered when CYFIRMA identifies publicly exposed vulnerabilities on domains or IP addresses within your organization's attack surface. These vulnerabilities may include outdated software, missing patches, insecure services, or misconfigurations that can be exploited by threat actors.Such exposure significantly increases the risk of exploitation, lateral movement, or data breach. Immediate investigation and remediation are recommended.\"\n",
        "displayName": "CYFIRMA - Attack Surface - Domain/IP Vulnerability Exposure High Rule",
        "enabled": true,
        "entityMappings": [
          {
            "entityType": "DNS",
            "fieldMappings": [
              {
                "columnName": "Domain",
                "identifier": "DomainName"
              }
            ]
          },
          {
            "entityType": "Host",
            "fieldMappings": [
              {
                "columnName": "TopDomain",
                "identifier": "HostName"
              },
              {
                "columnName": "Domain",
                "identifier": "DnsDomain"
              }
            ]
          },
          {
            "entityType": "IP",
            "fieldMappings": [
              {
                "columnName": "NetworkIP",
                "identifier": "Address"
              }
            ]
          }
        ],
        "eventGroupingSettings": {
          "aggregationKind": "AlertPerResult"
        },
        "incidentConfiguration": {
          "createIncident": true,
          "groupingConfiguration": {
            "enabled": false,
            "lookbackDuration": "PT5H",
            "matchingMethod": "AllEntities",
            "reopenClosedIncident": false
          }
        },
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Cyfirma%20Attack%20Surface/Analytic%20Rules/ASDomainIPVulnerabilitiesHighRule.yaml",
        "query": "// High Severity Domain/IP Vulnerability Exposure Detected\nlet timeFrame = 5m;\nCyfirmaASDomainIPVulnerabilityAlerts_CL\n| where severity == 'Critical' and TimeGenerated between (ago(timeFrame) .. now())\n| mv-expand pvuln = possible_vulnerabilities\n| extend cve = tostring(pvuln.cveNo), vulProducts = pvuln.products\n| mv-expand vul_Products = vulProducts\n| summarize cveList = make_set(cve, 100), vul_products1 = make_set(vul_Products, 100)    by uid\n| join kind=inner (CyfirmaASDomainIPVulnerabilityAlerts_CL\n    | where severity == 'Critical'\n    | summarize arg_max(TimeGenerated, *) by uid)\n    on uid\n| extend\n    Vulnerabilities = strcat_array(cveList, ', '),\n    VulnerabilityProducts = strcat_array(vul_products1, ', '),\n    Description=description,\n    FirstSeen=first_seen,\n    LastSeen=last_seen,\n    RiskScore=risk_score,\n    Domain=sub_domain,\n    TopDomain=top_domain,\n    NetworkIP=ip,\n    AlertUID=alert_uid,\n    UID=uid,\n    OpenPorts=open_ports,\n    HostProvider=host_provider,\n    Country=country,\n    Softwares=softwares,\n    WebServer=web_server,\n    WebServerVersion=web_server_version,\n    ProviderName='CYFIRMA',\n    ProductName='DeCYFIR/DeTCT'\n| project\n    TimeGenerated,\n    Description,\n    Domain,\n    TopDomain,\n    RiskScore,\n    FirstSeen,\n    LastSeen,\n    NetworkIP,\n    AlertUID,\n    UID,\n    Vulnerabilities,\n    VulnerabilityProducts,\n    OpenPorts,\n    HostProvider,\n    Country,\n    Softwares,\n    WebServer,\n    WebServerVersion,\n    ProviderName,\n    ProductName\n",
        "queryFrequency": "PT5M",
        "queryPeriod": "PT5M",
        "severity": "High",
        "status": "Available",
        "subTechniques": [],
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "DefenseEvasion",
          "Discovery",
          "Execution",
          "Impact",
          "InitialAccess",
          "Persistence",
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1046",
          "T1068",
          "T1499",
          "T1505"
        ],
        "templateVersion": "1.0.1",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0
      },
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules"
    }
  ]
}