CCSS (Common Configuration Scoring System) is a set of measures used to determine the severity of the rule.
Each rule is associated with a high-level category. For example IAM, Container, Monitoring, Logging, Network, etc.
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- creditSnyk Research Team
Description
Enabling server-side encryption (SSE) on S3 buckets at the object level protects data at rest and helps prevent the breach of sensitive information assets. Objects can be encrypted with S3 Managed Keys (SSE-S3), KMS Managed Keys (SSE-KMS), or Customer Provided Keys (SSE-C).
How to fix?
In the aws_s3_bucket, define a rule in the server_side_encryption_configuration block.
Example Configuration
resource "aws_kms_key" "mykey" {
# other required fields here
}
resource "aws_s3_bucket" "bucket" {
server_side_encryption_configuration {
rule {
apply_server_side_encryption_by_default {
kms_master_key_id = "${aws_kms_key.mykey.arn}"
sse_algorithm = "aws:kms"
}
}
}
# other required fields here
}
In the AWS::S3::Bucket, configure a BucketEncryption block with a ServerSideEncryptionConfiguration block.
Example Configuration
JSON example configuration:
{
"Type": "AWS::S3::Bucket",
"Properties": {
"BucketEncryption": {
"ServerSideEncryptionConfiguration": [
{
"ServerSideEncryptionByDefault": {
"KMSMasterKeyID": "arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab",
"SSEAlgorithm": "aws:kms"
}
}
]
}
}
}
YAML example configuration:
Type: AWS::S3::Bucket
Properties:
BucketEncryption:
ServerSideEncryptionConfiguration:
- ServerSideEncryptionByDefault:
KMSMasterKeyID: arn:aws:kms:us-east-2:111122223333:key/1234abcd-12ab-34cd-56ef-1234567890ab
SSEAlgorithm: aws:kms
# other required fields here