CVE-2024-54151: Directus Directus Allows Unauthenticated Access To Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-849r-qrwj-8rv4",
  "modified" : "2024-12-09T21:54:13Z",
  "published" : "2024-12-09T20:40:54Z",
  "aliases" : [ "CVE-2024-54151" ],
  "summary" : "Directus allows unauthenticated access to WebSocket events and operations",
  "details" : "### Summary\nWhen setting `WEBSOCKETS_GRAPHQL_AUTH` or `WEBSOCKETS_REST_AUTH` to \"public\", an unauthenticated user is able to do any of the supported operations (CRUD, subscriptions) with full admin privileges.\n\n### Details\nAccountability for unauthenticated WebSocket requests is set to null, which used to be \"public permissions\" until the Permissions Policy update which now defaults that to system/admin level access. So instead of null we need to make use of `createDefaultAccountability()` to ensure public permissions are used for unauthenticated users.\n\n### PoC\n1. Start directus with\n```bash\nWEBSOCKETS_ENABLED=true\nWEBSOCKETS_GRAPHQL_AUTH=public\nWEBSOCKETS_REST_AUTH=public\n```\n\n2. Subscribe using GQL or REST or do any CRUD operation on a user created collection (system tables are not reachable with crud)\n```gql\nsubscription {\n    directus_users_mutated {\n        key\n        event\n        data {\n            id\n            email\n            first_name\n            last_name\n            password\n        }\n    }\n}\n```\nor\n```json\n{\n   \"type\": \"items\",\n   \"action\": \"read\",\n   \"collection\": \"your_collection_name\"\n}\n```\n3a. Open up the data studio as any user. Observe how the subscriber gets notified on each page navigation (because the users `last_page` gets updated, the `password` fields is properly redacted here)\n\n3b. Observe receiving all available items from the `your_collection_name` collection.\n\n### Impact\n\nThis impacts any Directus instance that has either `WEBSOCKETS_GRAPHQL_AUTH` or `WEBSOCKETS_REST_AUTH` set to `public` allowing unauthenticated users to subscribe for changes on any collection or do REST CRUD operations on user defined collections ignoring permissions.\n\n",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "directus"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "11.0.0"
      }, {
        "fixed" : "11.3.0"
      } ]
    } ]
  }, {
    "package" : {
      "ecosystem" : "npm",
      "name" : "@directus/api"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "22.2.0"
      }, {
        "fixed" : "23.2.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/directus/directus/security/advisories/GHSA-849r-qrwj-8rv4"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2024-54151"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/directus/directus/commit/ce0397d16cf767b5293cd57f626c5349b5732a21"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/directus/directus"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-200" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2024-12-09T20:40:54Z",
    "nvd_published_at" : "2024-12-09T21:15:08Z"
  }
}