Описание
Lookup operations do not take into account wildcards in SpiceDB
Impact
Any user making use of a wildcard relationship under the right hand branch of an exclusion or within an intersection operation will see Lookup/LookupResources return a resource as "accessible" if it is not accessible by virtue of the inclusion of the wildcard in the intersection or the right side of the exclusion.
For example, given schema:
If user:* is placed into the banned relation for a particular resource, view should return false for all resources. in v1.3.0, the wildcard is ignored entirely in lookup's dispatch, resulting in the banned wildcard being ignored in the exclusion.
Workarounds
Don't make use of wildcards on the right side of intersections or within exclusions.
References
https://github.com/authzed/spicedb/issues/358
For more information
If you have any questions or comments about this advisory:
- Open an issue in SpiceDB
- Ask a question in the SpiceDB Discord
Ссылки
- https://github.com/authzed/spicedb/security/advisories/GHSA-7p8f-8hjm-wm92
- https://nvd.nist.gov/vuln/detail/CVE-2022-21646
- https://github.com/authzed/spicedb/issues/358
- https://github.com/authzed/spicedb/commit/15bba2e2d2a4bda336a37a7fe8ef8a35028cd970
- https://github.com/authzed/spicedb/releases/tag/v1.4.0
Пакеты
github.com/authzed/spicedb
= 1.3.0
1.4.0
Связанные уязвимости
SpiceDB is a database system for managing security-critical application permissions. Any user making use of a wildcard relationship under the right hand branch of an `exclusion` or within an `intersection` operation will see `Lookup`/`LookupResources` return a resource as "accessible" if it is *not* accessible by virtue of the inclusion of the wildcard in the intersection or the right side of the exclusion. In `v1.3.0`, the wildcard is ignored entirely in lookup's dispatch, resulting in the `banned` wildcard being ignored in the exclusion. Version 1.4.0 contains a patch for this issue. As a workaround, don't make use of wildcards on the right side of intersections or within exclusions.