Privilege escalation via Glue policy

Back


Id	370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7
Rulename	Privilege escalation via Glue policy
Description	Detected usage of AttachUserPolicy/AttachGroupPolicy/AttachRolePolicy on Glue policy. Attackers could use these operations for privilege escalation. Verify these actions with the user.
Severity	Medium
Tactics	PrivilegeEscalation
Techniques	T1484
Required data connectors	AWS
Kind	Scheduled
Query frequency	1d
Query period	1d
Trigger threshold	0
Trigger operator	gt
Source Uri	https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_PrivilegeEscalationViaGluePolicy.yaml
Version	1.0.0
Arm template	370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7.json

KQL

AWSCloudTrail
  | where EventName in ("PutUserPolicy","PutRolePolicy","PutGroupPolicy") and isempty(ErrorCode) and isempty(ErrorMessage)
  | extend PolicyName = tostring(parse_json(RequestParameters).policyName)
  | extend Statement = parse_json(tostring((parse_json(RequestParameters).policyDocument))).Statement
  | mvexpand Statement
  | extend Action = parse_json(Statement).Action , Effect = tostring(parse_json(Statement).Effect), Resource = tostring(parse_json(Statement).Resource), Condition = tostring(parse_json(Statement).Condition)
  | extend Action = tostring(Action)
  | where Effect =~ "Allow" and ((((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:*") or ((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:CreateDevEndpoint" and Action contains "glue:GetDevEndpoints") or ((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:Create*" and Action contains "glue:Get*")) or (Action contains "glue:*") or (Action contains "glue:GetDevEndpoints" and Action contains "glue:UpdateDevEndpoint") or (Action contains "glue:Get*" and Action contains "glue:Update*")) and Resource == "*" and Condition == ""
  | distinct TimeGenerated, EventName, PolicyName, SourceIpAddress, UserIdentityArn, UserIdentityUserName
  | extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
  | extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName

YAML

severity: Medium
queryFrequency: 1d
relevantTechniques:
- T1484
tactics:
- PrivilegeEscalation
kind: Scheduled
query: |
  AWSCloudTrail
    | where EventName in ("PutUserPolicy","PutRolePolicy","PutGroupPolicy") and isempty(ErrorCode) and isempty(ErrorMessage)
    | extend PolicyName = tostring(parse_json(RequestParameters).policyName)
    | extend Statement = parse_json(tostring((parse_json(RequestParameters).policyDocument))).Statement
    | mvexpand Statement
    | extend Action = parse_json(Statement).Action , Effect = tostring(parse_json(Statement).Effect), Resource = tostring(parse_json(Statement).Resource), Condition = tostring(parse_json(Statement).Condition)
    | extend Action = tostring(Action)
    | where Effect =~ "Allow" and ((((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:*") or ((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:CreateDevEndpoint" and Action contains "glue:GetDevEndpoints") or ((Action contains "iam:*" or Action contains "iam:PassRole") and Action contains "glue:Create*" and Action contains "glue:Get*")) or (Action contains "glue:*") or (Action contains "glue:GetDevEndpoints" and Action contains "glue:UpdateDevEndpoint") or (Action contains "glue:Get*" and Action contains "glue:Update*")) and Resource == "*" and Condition == ""
    | distinct TimeGenerated, EventName, PolicyName, SourceIpAddress, UserIdentityArn, UserIdentityUserName
    | extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))
    | extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName  
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_PrivilegeEscalationViaGluePolicy.yaml
queryPeriod: 1d
status: Available
version: 1.0.0
name: Privilege escalation via Glue policy
requiredDataConnectors:
- dataTypes:
  - AWSCloudTrail
  connectorId: AWS
triggerOperator: gt
entityMappings:
- entityType: Account
  fieldMappings:
  - identifier: FullName
    columnName: AccountCustomEntity
- entityType: IP
  fieldMappings:
  - identifier: Address
    columnName: IPCustomEntity
id: 370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7
description: |
    'Detected usage of AttachUserPolicy/AttachGroupPolicy/AttachRolePolicy on Glue policy. Attackers could use these operations for privilege escalation. Verify these actions with the user.'
triggerThreshold: 0

ARM

{
  "$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/370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7')]",
      "name": "[concat(parameters('workspace'),'/Microsoft.SecurityInsights/370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7')]",
      "type": "Microsoft.OperationalInsights/workspaces/providers/alertRules",
      "kind": "Scheduled",
      "apiVersion": "2022-11-01-preview",
      "properties": {
        "displayName": "Privilege escalation via Glue policy",
        "description": "'Detected usage of AttachUserPolicy/AttachGroupPolicy/AttachRolePolicy on Glue policy. Attackers could use these operations for privilege escalation. Verify these actions with the user.'\n",
        "severity": "Medium",
        "enabled": true,
        "query": "AWSCloudTrail\n  | where EventName in (\"PutUserPolicy\",\"PutRolePolicy\",\"PutGroupPolicy\") and isempty(ErrorCode) and isempty(ErrorMessage)\n  | extend PolicyName = tostring(parse_json(RequestParameters).policyName)\n  | extend Statement = parse_json(tostring((parse_json(RequestParameters).policyDocument))).Statement\n  | mvexpand Statement\n  | extend Action = parse_json(Statement).Action , Effect = tostring(parse_json(Statement).Effect), Resource = tostring(parse_json(Statement).Resource), Condition = tostring(parse_json(Statement).Condition)\n  | extend Action = tostring(Action)\n  | where Effect =~ \"Allow\" and ((((Action contains \"iam:*\" or Action contains \"iam:PassRole\") and Action contains \"glue:*\") or ((Action contains \"iam:*\" or Action contains \"iam:PassRole\") and Action contains \"glue:CreateDevEndpoint\" and Action contains \"glue:GetDevEndpoints\") or ((Action contains \"iam:*\" or Action contains \"iam:PassRole\") and Action contains \"glue:Create*\" and Action contains \"glue:Get*\")) or (Action contains \"glue:*\") or (Action contains \"glue:GetDevEndpoints\" and Action contains \"glue:UpdateDevEndpoint\") or (Action contains \"glue:Get*\" and Action contains \"glue:Update*\")) and Resource == \"*\" and Condition == \"\"\n  | distinct TimeGenerated, EventName, PolicyName, SourceIpAddress, UserIdentityArn, UserIdentityUserName\n  | extend UserIdentityUserName = iff(isnotempty(UserIdentityUserName), UserIdentityUserName, tostring(split(UserIdentityArn,'/')[-1]))\n  | extend timestamp = TimeGenerated, IPCustomEntity = SourceIpAddress, AccountCustomEntity = UserIdentityUserName\n",
        "queryFrequency": "P1D",
        "queryPeriod": "P1D",
        "triggerOperator": "GreaterThan",
        "triggerThreshold": 0,
        "suppressionDuration": "PT1H",
        "suppressionEnabled": false,
        "tactics": [
          "PrivilegeEscalation"
        ],
        "techniques": [
          "T1484"
        ],
        "alertRuleTemplateName": "370f0e5e-da1d-4a14-8ced-d1d7ab66a8d7",
        "customDetails": null,
        "entityMappings": [
          {
            "fieldMappings": [
              {
                "columnName": "AccountCustomEntity",
                "identifier": "FullName"
              }
            ],
            "entityType": "Account"
          },
          {
            "fieldMappings": [
              {
                "columnName": "IPCustomEntity",
                "identifier": "Address"
              }
            ],
            "entityType": "IP"
          }
        ],
        "templateVersion": "1.0.0",
        "status": "Available",
        "OriginalUri": "https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Amazon Web Services/Analytic Rules/AWS_PrivilegeEscalationViaGluePolicy.yaml"
      }
    }
  ]
}