Description
Signal K Server before 2.33.0 contains a missing authentication vulnerability that allows unauthenticated remote attackers to download log archives via the /skServer/ziplogs endpoint. Attackers can extract the JWT secretKey from security.json in the ZIP, forge administrator tokens, and create persistent admin accounts for full server control.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SignalK | signalk-server | < 2.33.0 | 2.33.0 |
References
- Patch Commit patch
- https://github.com/SignalK/signalk-server product
- GitHub Security Advisory (GHSA-4w32-qx5g-cpwv) vendor-advisory
- https://github.com/SignalK/signalk-server/blob/v2.32.0/src/interfaces/logfiles.js#L30-L91 technical-description
- signalk-server v2.33.0 Release Notes release-notes
- VulnCheck Advisory: Signal K Server before 2.33.0 Missing Authentication via /skServer/ziplogs third-party-advisory