RDS Public Snapshot Exposure

ID: rds-public-snapshot

Severity: high

Author: princechaddha

Tags: cloud,devops,aws,amazon,rds,aws-cloud-config

Description

Checks if AWS RDS database snapshots are publicly accessible, risking exposure of sensitive data.

YAML Source

id: rds-public-snapshot
info:
  name: RDS Public Snapshot Exposure
  author: princechaddha
  severity: high
  description: |
    Checks if AWS RDS database snapshots are publicly accessible, risking exposure of sensitive data.
  impact: |
    Public snapshots can expose sensitive data to unauthorized users, leading to potential data breaches.
  remediation: |
    Modify the snapshot's visibility settings to ensure it is not public, only shared with specific AWS accounts.
  reference:
    - https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_ShareSnapshot.html
  metadata:
    max-request: 2
  tags: cloud,devops,aws,amazon,rds,aws-cloud-config
variables:
  region: "ap-northeast-1"

flow: |
  code(1)
  for(let RDPsnaps of iterate(template.snapshots)){
    set("snapshot", RDPsnaps)
    code(2)
  }

self-contained: true
code:
  - engine:
      - sh
      - bash
    source: |
      aws rds describe-db-snapshots  --region $region  --snapshot-type manual  --output json  --query 'DBSnapshots[*].DBSnapshotIdentifier'

    extractors:
      - type: json
        name: snapshots
        internal: true
        json:
          - '.[]'

  - engine:
      - sh
      - bash
    source: |
         aws rds describe-db-snapshot-attributes --region $region --db-snapshot-identifier $snapshot  --query 'DBSnapshotAttributesResult.DBSnapshotAttributes'

    matchers:
      - type: word
        words:
          - '"all"'

    extractors:
      - type: dsl
        dsl:
          - '"RDS snapshot " + snapshot + " is public"'
# digest: 4a0a0047304502210095c4d7f8b1d8ccd88d2d2dc7419439aec85ffdfb81f22f0d0ab8f323b8683858022032a09c09060b762b583feccfecfa559177fac2e307cf4eb04873f8601cfc443c:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

$ nuclei -u "URL" -t "cloud/aws/rds/rds-public-snapshot.yaml"

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