Staging Environment: Content and features may be unstable or change without notice.
Advisory details: github_osv / GHSA-gggm-66rh-pp98
Advisory ID github_osv/GHSA-gggm-66rh-pp98
Aliases CVE-2023-38503
Summary Incorrect Permission Checking for GraphQL Subscriptions ### Summary CWE-200: Exposure of Sensitive Information to an Unauthorized Actor Access to information you should not have access to when the permissions rely on `$CURRENT_USER` for filtering. ### Details The permission filters (i.e. `user_created IS $CURRENT_USER`) are not properly checked when using GraphQL subscription resulting in unauthorized users getting event on their subscription which they should not be receiving according to the permissions. This can be any collection but out-of-the box the `directus_users` collection is configured with such a permissions filter allowing you to get updates for other users when changes happen. An example: ```graphql subscription { directus_users_mutated { event data { id last_access last_page } } } ``` ### Patches https://github.com/directus/directus/pull/19155 ### Workarounds Disable GraphQL Subscriptions ### References
Status Published
Exploitability 0.5
Weighted Severity 5.1
Risk 2.5
Affected and Fixed Packages Package Details
Introduced and Fixed Package Commit Patches Package Commit Patches Details
Weaknesses (2)
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:L/UI:R/S:U/C:H/I:N/A:N Found at https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/07/GHSA-gggm-66rh-pp98/GHSA-gggm-66rh-pp98.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:N/A:N/T:P/P:M/B:A/M:M/D:T/2024-10-10T17:37:11Z/

Decision: Track

Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2023/38xxx/CVE-2023-38503.json

Source Advisory: vulnrichment/CVE-2023-38503

View SSVC decision tree
[{'Exploitation': 'none'},
 {'Automatable': 'no'},
 {'Technical Impact': 'partial'},
 {'Mission Prevalence': 'minimal'},
 {'Public Well-being Impact': 'material'},
 {'Mission & Well-being': 'medium'}]