| Titel | nextlevelbuilder GoClaw <= 3.11.3 Server-Side Request Forgery (SSRF) (CWE-918) |
|---|
| Beschreibung | # Technical Details
A Server-Side Request Forgery (SSRF) vulnerability exists in the `TTSConfigHandler.handleSave` method in `internal/http/tts_config.go` of GoClaw.
The application fails to validate provider-controlled TTS `api_base` URLs before persisting them through `POST /v1/tts/config`. The separate `POST /v1/tts/test-connection` path uses `validateProviderURL()` to reject private and metadata-service addresses, but `handleSave` omits that validation. As a result, an attacker with access to the TTS configuration endpoint can store an internal URL such as `http://x.x.x.x/latest/meta-data`, and later force the backend to contact it during TTS synthesis through `POST /v1/tts/synthesize`.
# Vulnerable Code
File: internal/http/tts_config.go
Method: TTSConfigHandler.handleSave
Why: The method accepts provider-specific `api_base` values from OpenAI, ElevenLabs, and similar TTS provider configurations, resolves them with helpers such as `resolvedAPIBase()`, and stores them in `system_configs` without calling `validateProviderURL()` or otherwise blocking localhost, private network, or cloud metadata endpoints.
# Reproduction
1. Run a vulnerable GoClaw deployment with PostgreSQL and access to `POST /v1/tts/config`.
2. Send a TTS configuration request that sets a provider `api_base` to an internal target such as `http://x.x.x.x/latest/meta-data`.
3. Confirm the server returns success and the malicious `api_base` is persisted in `system_configs`.
4. Trigger TTS synthesis with `POST /v1/tts/synthesize`.
5. Observe that the backend attempts to contact the internal target, typically producing a timeout or backend log entry showing the outbound request attempt.
# Impact
- Authenticated administrative users, or users in default/dev single-user deployments, can force the server to make requests to internal network resources.
- Cloud deployments may expose metadata service endpoints and IAM credentials.
- Attackers can perform blind internal network probing or interact with private services that are not externally reachable. |
|---|
| Quelle | ⚠️ https://github.com/nextlevelbuilder/goclaw/issues/1132 |
|---|
| Benutzer | Eric-b (UID 96354) |
|---|
| Einreichung | 14.05.2026 07:22 (vor 21 Tagen) |
|---|
| Moderieren | 01.06.2026 20:17 (19 days later) |
|---|
| Status | Akzeptiert |
|---|
| VulDB Eintrag | 367710 [nextlevelbuilder GoClaw bis 3.11.3 TTS Configuration Endpoint tts_config.go import erweiterte Rechte] |
|---|
| Punkte | 20 |
|---|