Amazon Inspectorを使ったECRスキャンでスキャン結果にイメージを使用しているECSタスク・EKS Pod情報がマッピングされるようになりました

# Lambda関数用のIAMロール
resource "aws_iam_role" "lambda_role" {
  name = "ecr_scan_lambda_role"

  assume_role_policy = jsonencode({
    Version = "2012-10-17"
    Statement = [
      {
        Action = "sts:AssumeRole"
        Effect = "Allow"
        Principal = {
          Service = "lambda.amazonaws.com"
        }
      }
    ]
  })
}

# Lambda基本実行権限とCloudWatch Logs権限をアタッチ
resource "aws_iam_role_policy_attachment" "lambda_basic" {
  role       = aws_iam_role.lambda_role.name
  policy_arn = "arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole"
}

# Lambda関数用のコードをzipファイルとして準備
data "archive_file" "lambda_zip" {
  type        = "zip"
  output_path = "${path.module}/lambda_function.zip"
  
  source {
    content  = <<EOF
import json
import logging

logger = logging.getLogger()
logger.setLevel(logging.INFO)

def lambda_handler(event, context):
    """ECRスキャンイベントを受け取り、内容をログに出力する関数"""
    
    # イベント全体をログに出力
    logger.info("ECRスキャンイベント:")
    logger.info(json.dumps(event, indent=2, default=str))
    
    return {
        'statusCode': 200,
        'body': 'イベント処理完了'
    }
EOF
    filename = "lambda_function.py"
  }
}

# Lambda関数の作成
resource "aws_lambda_function" "ecr_scan_lambda" {
  function_name    = "ecr-scan-event-processor"
  role             = aws_iam_role.lambda_role.arn
  handler          = "lambda_function.lambda_handler"
  filename         = data.archive_file.lambda_zip.output_path
  source_code_hash = data.archive_file.lambda_zip.output_base64sha256
  runtime          = "python3.9"
  timeout          = 10
  
  tags = {
    Name = "ECRScanEventProcessor"
  }
}

# EventBridgeルールの作成
resource "aws_cloudwatch_event_rule" "ecr_scan_rule" {
  name        = "ecr-scan-events"
  description = "キャプチャするECRスキャンイベント"
  
  event_pattern = jsonencode({
    source      = ["aws.inspector2"]
    detail-type = ["Inspector2 Finding"]
  })
}

# EventBridgeルールのターゲットとしてLambda関数を設定
resource "aws_cloudwatch_event_target" "lambda_target" {
  rule      = aws_cloudwatch_event_rule.ecr_scan_rule.name
  target_id = "SendToLambda"
  arn       = aws_lambda_function.ecr_scan_lambda.arn
}

# EventBridgeがLambda関数を呼び出す権限を付与
resource "aws_lambda_permission" "allow_eventbridge" {
  statement_id  = "AllowExecutionFromEventBridge"
  action        = "lambda:InvokeFunction"
  function_name = aws_lambda_function.ecr_scan_lambda.function_name
  principal     = "events.amazonaws.com"
  source_arn    = aws_cloudwatch_event_rule.ecr_scan_rule.arn
}

[INFO]	2025-05-26T16:54:24.776Z	****************************
{
    "version": "0",
    "id": "feeedbd8-8cd6-9eac-150c-935c36c5ce45",
    "detail-type": "Inspector2 Finding",
    "source": "aws.inspector2",
    "account": "************",
    "time": "2025-05-26T16:54:15Z",
    "region": "us-east-1",
    "resources": [
        "arn:aws:ecr:us-east-1:************:repository/test-ecspresso-test/sha256:****************************"
    ],
    "detail": {
        "awsAccountId": "************",
        "description": "In libxml2 before 2.13.8 and 2.14.x before 2.14.2, xmlSchemaIDCFillNodeTables in xmlschemas.c has a heap-based buffer under-read. To exploit this, a crafted XML document must be validated against an XML schema with certain identity constraints, or a crafted XML schema must be used.",
        "epss": {
            "score": 0.0002
        },
        "exploitAvailable": "NO",
        "findingArn": "arn:aws:inspector2:us-east-1:************:finding/****************************",
        "firstObservedAt": "Tue May 20 00:04:00.754 UTC 2025",
        "fixAvailable": "YES",
        "inspectorScore": 7.5,
        "inspectorScoreDetails": {
            "adjustedCvss": {
                "adjustments": [],
                "cvssSource": "NVD",
                "score": 7.5,
                "scoreSource": "NVD",
                "scoringVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
            }
        },
        "lastObservedAt": "Mon May 26 16:54:15.761 UTC 2025",
        "packageVulnerabilityDetails": {
            "cvss": [
                {
                    "baseScore": 7.5,
                    "scoringVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "source": "NVD",
                    "version": "3.1"
                }
            ],
            "referenceUrls": [
                "https://gitlab.gnome.org/GNOME/libxml2/-/issues/890",
                "https://nvd.nist.gov/vuln/detail/CVE-2025-32415"
            ],
            "relatedVulnerabilities": [],
            "source": "NVD",
            "sourceUrl": "https://nvd.nist.gov/vuln/detail/CVE-2025-32415",
            "vendorCreatedAt": "Thu Apr 17 17:15:33.000 UTC 2025",
            "vendorSeverity": "HIGH",
            "vendorUpdatedAt": "Wed Apr 23 18:17:52.000 UTC 2025",
            "vulnerabilityId": "CVE-2025-32415",
            "vulnerablePackages": [
                {
                    "arch": "AARCH64",
                    "epoch": 0,
                    "fixedInVersion": "2.13.4-r6",
                    "name": "libxml2",
                    "packageManager": "OS",
                    "release": "r5",
                    "remediation": "apk update && apk upgrade libxml2",
                    "sourceLayerHash": "sha256:****************************",
                    "version": "2.13.4"
                }
            ]
        },
        "remediation": {
            "recommendation": {
                "text": "None Provided"
            }
        },
        "resources": [
            {
                "details": {
                    "awsEcrContainerImage": {
                        "architecture": "arm64",
                        "imageHash": "sha256:****************************",
                        "imageTags": [
                            "v4"
                        ],
                        "inUseCount": 1,
                        "lastInUseAt": "Mon May 26 16:49:39.233 UTC 2025",
                        "platform": "ALPINE_LINUX_3_21",
                        "pushedAt": "Tue May 20 00:03:45.707 UTC 2025",
                        "registry": "************",
                        "repositoryName": "test-ecspresso-test"
                    }
                },
                "id": "arn:aws:ecr:us-east-1:************:repository/test-ecspresso-test/sha256:****************************",
                "partition": "aws",
                "region": "us-east-1",
                "type": "AWS_ECR_CONTAINER_IMAGE"
            }
        ],
        "severity": "HIGH",
        "status": "ACTIVE",
        "title": "CVE-2025-32415 - libxml2",
        "type": "PACKAGE_VULNERABILITY",
        "updatedAt": "Mon May 26 16:54:15.761 UTC 2025"
    }
}