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Security controls absence - Monitoring

Description​

The application lacks of alert or notification mechanisms in the presence of critical changes in the system, such as: access and modification of resources, roles creation, among others.

Impact​

Perform potentially harmful operations in the system without raising an alert.

Recommendation​

Set notification mechanisms in critical changes in the system resources or services.

Threat​

Authenticated attacker from the Internet who succeeded to compromise a resource.

Expected Remediation Time​

⌚ 90 minutes.

Score​

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

Base​

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

Temporal​

  • Exploit code madurity: P
  • Remediation level: U
  • Report confidence: C

Result​

  • Vector string: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N/E:P/RL:U/RC:C
  • Score:
    • Base: 5.3
    • Temporal: 5.0
  • Severity:
    • Base: Medium
    • Temporal: Medium

Code Examples​

Compliant code​

Sensitive resources have notification mechanisms in place to report changes

resource "aws_iam_notification" "iam_notification" {
  lambda_function {
    lambda_function_arn = aws_lambda_function.func.arn
    events              = ["iam:Edited*"]
    filter_prefix       = "AWSLogs/"
    filter_suffix       = ".log"
  }

  depends_on = [resource.name]
}

Non compliant code​

There are sensitive resources in the application that do not have notification mechanisms in case of changes

Requirements​