Impact
Unauthenticated GraphQL queries for user accounts can expose password hashes of users that have created or modified content, typically but not necessarily limited to administrators and editors.
Patches
Affected versions: Ibexa DXP v3.3.*, v4.2.*, eZ Platform v2.5.*
Resolving versions: Ibexa DXP v3.3.28, v4.2.3, eZ Platform v2.5.31
Workarounds
Remove the “passwordHash” entry from “src/bundle/Resources/config/graphql/User.types.yaml” in the GraphQL package, and other properties like hash type, email, login if you prefer.
References
This issue was reported to us by Philippe Tranca (“trancap”) of the company Lexfo. We are very grateful for their research, and responsible disclosure to us of this critical vulnerability.
For more information
If you have any questions or comments about this advisory, please contact Support via your service portal.
References
- https://github.com/ibexa/graphql/security/advisories/GHSA-3p7g-wrgg-wq45
- https://github.com/ibexa/graphql/commit/5ae5fb4d1d292ddde8528e040ef8a7c8dd7f9c6d
- https://developers.ibexa.co/security-advisories/ibexa-sa-2022-009-critical-vulnerabilities-in-graphql-role-assignment-ct-editing-and-drafts-tooltips
- https://github.com/advisories/GHSA-3p7g-wrgg-wq45