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Insecure service configuration - DynamoDB

Description​

The DynamoDB service has insecure configurations.

Impact​

Access to the database and exploit vulnerabilities in the system configuration to affect the service and have access to stored information.

Recommendation​

Set correct configurations and in line with AWS best security practices.

Threat​

Unauthorized Internet user with credentials.

Expected Remediation Time​

⌚ 30 minutes.

Score​

Default score using CVSS 3.1. It may change depending on the context of the vulnerability.

Base​

  • Attack vector: N
  • Attack complexity: L
  • Privileges required: N
  • User interaction: N
  • Scope: U
  • Confidentiality: N
  • Integrity: L
  • Availability: L

Temporal​

  • Exploit code madurity: X
  • Remediation level: X
  • Report confidence: X

Result​

  • Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:X
  • Score:
    • Base: 6.5
    • Temporal: 6.5
  • Severity:
    • Base: Medium
    • Temporal: Medium

Code Examples​

Compliant code​

All sensitive resources have restricted access configuration

resource "aws_db_instance" "default" {
  allocated_storage    = 10
  engine               = "dynamoDB"
  engine_version       = "5.7"
  instance_class       = "db.t3.micro"
  name                 = "mydb"
  username             = "admin"
  password             = "encrypted_password"
  allowed_groups       = admin
}

Non compliant code​

The dynamo db service does not have restricted access configuration

resource "aws_db_instance" "default" {
  allocated_storage    = 10
  engine               = "dynamoDB"
  engine_version       = "5.7"
  instance_class       = "db.t3.micro"
  name                 = "mydb"
  username             = "admin"
  password             = "*"
  allowed_groups       = all
}

Requirements​

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