Config rule for encrypted volumes disabled

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Metadata

Id: abdb29d4-5ca1-4e91-800b-b3569bbd788c

Cloud Provider: AWS

Platform: Terraform

Severity: High

Category: Encryption

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Description

This check verifies if AWS Config rules include the ENCRYPTED_VOLUMES source identifier, which monitors whether EBS volumes that are attached to EC2 instances are encrypted. Without this rule in place, organizations may unknowingly deploy unencrypted EBS volumes, potentially exposing sensitive data to unauthorized access in case of data breaches or improper access controls.

To address this vulnerability, ensure at least one AWS Config rule uses ENCRYPTED_VOLUMES as the source identifier, as shown below:

resource "aws_config_config_rule" "encrypted_volumes" {
  name = "encrypted_vols_rule"

  source {
    owner             = "AWS"
    source_identifier = "ENCRYPTED_VOLUMES"
  }
}

Compliant Code Examples

resource "aws_config_config_rule" "negative1" {
  name = "encrypted_vols_rule"

  source {
    owner             = "AWS"
    source_identifier = "ENCRYPTED_VOLUMES"
  }
}

resource "aws_config_config_rule" "negative2" {
  name = "another_rule"

  source {
    owner             = "AWS"
    source_identifier = "IAM_PASSWORD_POLICY"
  }
}

Non-Compliant Code Examples

resource "aws_config_config_rule" "positive1" {
  name = "some_rule"

  source {
    owner             = "AWS"
    source_identifier = "IAM_PASSWORD_POLICY"
  }
}

resource "aws_config_config_rule" "positive2" {
  name = "another_rule"

  source {
    owner             = "AWS"
    source_identifier = "IAM_PASSWORD_POLICY"
  }
}