Description
OtterMind Nubase through 0.1.4 contains a missing authentication vulnerability that allows unauthenticated attackers to access private bucket objects because /storage/v1/object/{bucketId}/{path} is treated as public for every HTTP method. Attackers knowing a tenant subdomain, bucket id and object path can download objects from private buckets and delete stored objects without an apikey or JWT.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| OtterMind | Nubase | ≤ 0.1.4 | — |
References
- https://hackmd.io/@hieuPenguinnn/nubase-storage-private-object-unauth-download third-party-advisory
- https://github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/common/multitenancy/UnifiedMultiTenancyFilter.java#L363-L379 technical-description
- https://github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/auth/controller/storage/StorageObjectReadController.java#L68-L74 technical-description
- https://github.com/OtterMind/Nubase/blob/v0.1.4/src/main/java/ai/nubase/auth/service/StorageService.java#L176-L200 technical-description
- VulnCheck Advisory: OtterMind Nubase through 0.1.4 Missing Authentication in Storage Object API third-party-advisory