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CloudFront distribution does not have geo-restrictions specified Affecting CloudFront service in AWS

Severity

0.0
medium
0
10
    Severity Framework
    Snyk CCSS
    Rule category
    Network / Settings

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    Frameworks
    ISO-27001 NIST-800-53
  • Snyk ID SNYK-CC-00117
  • credit Snyk Research Team
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Description

CloudFront distributions should enable geo-restriction when an organization needs to prevent users in specific geographic locations from accessing content, or allow only users in specific geographic locations to access content.

How to fix?

Set restrictions.geo_restriction.restriction_type to whitelist or blacklist and specify countries to allow or block in restrictions.geo_restriction.locations.

Example Configuration

resource "aws_cloudfront_distribution" "s3_distribution" {
  origin {
    domain_name = "${aws_s3_bucket.b.bucket_regional_domain_name}"
    origin_id   = "${aws_s3_bucket.b.id}"

    s3_origin_config {
      origin_access_identity = "${aws_cloudfront_origin_access_identity.origin_access_identity.cloudfront_access_identity_path}"
    }
  }

  enabled = true
  
  restrictions {
    geo_restriction {
      restriction_type = "whitelist"
      locations        = ["US", "CA", "GB", "DE"]
    }
  }

  viewer_certificate {
    cloudfront_default_certificate = true
  }

  default_cache_behavior {
    allowed_methods  = ["DELETE", "GET", "HEAD", "OPTIONS", "PATCH", "POST", "PUT"]
    cached_methods   = ["GET", "HEAD"]
    target_origin_id = "${aws_s3_bucket.b.id}"

    forwarded_values {
      query_string = false

      cookies {
        forward = "none"
      }
    }

    viewer_protocol_policy = "redirect-to-https"
    min_ttl                = 0
    default_ttl            = 3600
    max_ttl                = 86400
  }
}

References