Description
TDuck survey form through version 5.3 fails to validate webhook URLs or verify form ownership in the WebhookConfigController. Authenticated attackers can attach webhooks to other users' forms and exfiltrate submissions to arbitrary external or internal addresses.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| TDuckCloud | tduck-survey-form | ≤ 5.3 | — |
References
- GitHub Issue #40 issue-tracking
- https://github.com/TDuckCloud/tduck-survey-form product
- https://github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eacc8be0c73f0d4db3c265d43/tduck-webhook/src/main/java/com/tduck/cloud/webhook/controller/WebhookConfigController.java#L43-L47 technical-description
- https://github.com/TDuckCloud/tduck-survey-form/blob/9ad4e2dc75cdff5eacc8be0c73f0d4db3c265d43/tduck-webhook/src/main/java/com/tduck/cloud/webhook/service/sender/WebhookSenderService.java#L84-L100 technical-description
- VulnCheck Advisory: TDuck survey form through 5.3 Server-Side Request Forgery via Unvalidated Webhook URL third-party-advisory