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🛡️ Sentinel: [CRITICAL] Fix client-side auth bypass in DisplayRulesManager - #104

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🛡️ Sentinel: [CRITICAL] Fix client-side auth bypass in DisplayRulesManager#104
aperetti wants to merge 1 commit into
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sentinel/frontend-auth-bypass-7123989805348526084

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🚨 Severity: CRITICAL
💡 Vulnerability: The frontend DisplayRulesManager component used insecure client-side authentication by checking against hardcoded credentials and trusting a locally generated Base64 token without server validation.
🎯 Impact: An attacker could trivially bypass the login screen by either typing the hardcoded password or manipulating localStorage, gaining unauthorized access to the admin UI overlay.
🔧 Fix: Removed the hardcoded credential checks. Replaced with a secure backend validation step where fetchDisplayConfigs() is called with the generated token; UI access is only granted if the server returns a successful response.
✅ Verification: npm test passes for the component, TypeScript typechecking passes, and manual review confirms the backend call securely guards state changes.


PR created automatically by Jules for task 7123989805348526084 started by @aperetti

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Removed hardcoded frontend credentials ('admin'/'admin') in `DisplayRulesManager.tsx` that allowed local bypass of the authentication screen. The client now properly verifies credentials by making an authenticated API call (`fetchDisplayConfigs()`) to the backend and checking for success before storing the token and granting access to the UI.

Co-authored-by: aperetti <482392+aperetti@users.noreply.github.com>
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