mcp-server-semgrep/semgrep-rules/terraform/lang/security/s3-public-rw-bucket.yaml

MCP Server for Semgrep Integration - static code analysis with AI

rules:
- id: s3-public-rw-bucket
  pattern: acl = "public-read-write"
  languages:
  - hcl
  severity: ERROR
  message: S3 bucket with public read-write access detected.
  metadata:
    references:
    - https://registry.terraform.io/providers/hashicorp/aws/latest/docs/resources/s3_bucket#acl
    - https://docs.aws.amazon.com/AmazonS3/latest/dev/acl-overview.html#canned-acl
    cwe:
    - 'CWE-200: Exposure of Sensitive Information to an Unauthorized Actor'
    category: security
    technology:
    - terraform
    - aws
    owasp:
    - A01:2021 - Broken Access Control
    cwe2021-top25: true
    subcategory:
    - vuln
    likelihood: LOW
    impact: MEDIUM
    confidence: MEDIUM