terraform.aws.security.aws-cloudwatch-log-group-no-retention.aws-cloudwatch-log-group-no-retention

profile photo of semgrepsemgrep
Author
unknown
Download Count*
LGPL Commons Clause
License

The AWS CloudWatch Log Group has no retention. Missing retention in log groups can cause losing important event information.

Run Locally

Run in CI

Semgrep CI docs

Defintion

Edit RuleView Source
Open in Playground 
rules:
  - id: aws-cloudwatch-log-group-no-retention
    patterns:
      - pattern: |
          resource "aws_cloudwatch_log_group" $ANYTHING {
            ...
          }
      - pattern-not-inside: |
          resource "aws_cloudwatch_log_group" $ANYTHING {
            ...
            retention_in_days = ...
            ...
          }
    message: The AWS CloudWatch Log Group has no retention. Missing retention in log
      groups can cause losing important event information.
    languages:
      - hcl
    severity: WARNING
    metadata:
      owasp:
        - A03:2017 - Sensitive Data Exposure
      cwe:
        - "CWE-320: CWE CATEGORY: Key Management Errors"
      technology:
        - aws
        - terraform
      category: security
      references:
        - https://owasp.org/Top10/A02_2021-Cryptographic_Failures
      subcategory:
        - vuln
      likelihood: MEDIUM
      impact: MEDIUM
      confidence: MEDIUM
      license: Commons Clause License Condition v1.0[LGPL-2.1-only]
      vulnerability_class:
        - Cryptographic Issues

Examples

aws-cloudwatch-log-group-no-retention.tf

resource "aws_cloudwatch_log_group" "pass" {
  retention_in_days = 3
}
# ruleid: aws-cloudwatch-log-group-no-retention
resource "aws_cloudwatch_log_group" "fail" {}