mcp-server-semgrep/semgrep-rules/typescript/aws-cdk/security/awscdk-bucket-grantpublicaccessmethod.yml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: awscdk-bucket-grantpublicaccessmethod
  message: Using the GrantPublicAccess method on bucket contruct $X will make the objects in the bucket
    world accessible. Verify if this is intentional.
  metadata:
    cwe:
    - 'CWE-306: Missing Authentication for Critical Function'
    category: security
    technology:
    - AWS-CDK
    references:
    - https://docs.aws.amazon.com/AmazonS3/latest/userguide/access-control-overview.html
    owasp:
    - A07:2021 - Identification and Authentication Failures
    cwe2022-top25: true
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: HIGH
    impact: HIGH
    confidence: MEDIUM
  languages:
  - ts
  severity: WARNING
  pattern-either:
  - patterns:
    - pattern-inside: |
        import {Bucket} from '@aws-cdk/aws-s3'
        ...
    - pattern: |
        const $X = new Bucket(...)
        ...
        $X.grantPublicAccess(...)
  - patterns:
    - pattern-inside: |
        import * as $Y from '@aws-cdk/aws-s3'
        ...
    - pattern: |
        const $X = new $Y.Bucket(...)
        ...
        $X.grantPublicAccess(...)