Description
CloudBeaver through 25.3.5 contains a missing authorization vulnerability in WebSQLResultServlet that allows any web session holder to read other users' LOB export files from a shared folder. Attackers can guess table and column names and enumerate second-resolution timestamps to download victims' LOB values, including data from connections they cannot query.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| DBeaver | CloudBeaver | ≤ 25.3.5 | — |
References
- https://hackmd.io/@haind03/cloudbeaver-sql-lob-servlet-missing-authorization third-party-advisory
- https://github.com/dbeaver/cloudbeaver/blob/48885c48f5fbd363bf3391f47a669629b4f3dd24/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/service/sql/WebSQLResultServlet.java#L57-L94 technical-description
- https://github.com/dbeaver/cloudbeaver/blob/48885c48f5fbd363bf3391f47a669629b4f3dd24/server/bundles/io.cloudbeaver.server/src/io/cloudbeaver/service/sql/WebSQLDataLOBReceiver.java#L37-L70 technical-description
- https://github.com/dbeaver/cloudbeaver product
- VulnCheck Advisory: CloudBeaver through 25.3.5 Missing Authorization via /api/sql-result-value Servlet third-party-advisory