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Advisory details: github_osv / GHSA-849r-qrwj-8rv4
Advisory ID github_osv/GHSA-849r-qrwj-8rv4
Aliases CVE-2024-54151
Summary Directus allows unauthenticated access to WebSocket events and operations ### Summary When 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. ### Details Accountability 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. ### PoC 1. Start directus with ```bash WEBSOCKETS_ENABLED=true WEBSOCKETS_GRAPHQL_AUTH=public WEBSOCKETS_REST_AUTH=public ``` 2. Subscribe using GQL or REST or do any CRUD operation on a user created collection (system tables are not reachable with crud) ```gql subscription { directus_users_mutated { key event data { id email first_name last_name password } } } ``` or ```json { "type": "items", "action": "read", "collection": "your_collection_name" } ``` 3a. 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) 3b. Observe receiving all available items from the `your_collection_name` collection. ### Impact This 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.
Status Published
Exploitability 0.5
Weighted Severity 6.8
Risk 3.4
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (1)
No exploits are available.

No EPSS data available for this advisory.

Patch URL
There are no known patches.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2024/12/GHSA-849r-qrwj-8rv4/GHSA-849r-qrwj-8rv4.json
Attack Vector (AV) Attack Complexity (AC) Privileges Required (PR) User Interaction (UI) Scope (S) Confidentiality Impact (C) Integrity Impact (I) Availability Impact (A)

network

adjacent_network

local

physical

low

high

none

low

high

none

required

unchanged

changed

high

low

none

high

low

none

high

low

none

Vector: SSVCv2/E:P/A:Y/T:P/P:M/B:A/M:M/D:T/2024-12-10T16:10:28Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2024/54xxx/CVE-2024-54151.json

Source Advisory: vulnrichment/CVE-2024-54151

View SSVC decision tree
[{'Exploitation': 'poc'},
 {'Automatable': 'yes'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]