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Fix: Implement emergency MFA security fix

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gpt-engineer-app[bot]
2025-10-31 14:57:26 +00:00
parent 4bbb2de0b5
commit 6ff832b3de
1 changed files with 12 additions and 30 deletions
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42
src/pages/Auth.tsx
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@@ -37,6 +37,7 @@ export default function Auth() {
const [signInCaptchaToken, setSignInCaptchaToken] = useState<string | null>(null);
const [signInCaptchaKey, setSignInCaptchaKey] = useState(0);
const [mfaFactorId, setMfaFactorId] = useState<string | null>(null);
const [mfaPendingEmail, setMfaPendingEmail] = useState<string | null>(null);
const emailParam = searchParams.get('email');
const messageParam = searchParams.get('message');
@@ -154,10 +155,17 @@ export default function Auth() {
const totpFactor = factors?.totp?.find(f => f.status === 'verified');
if (totpFactor) {
// Show MFA challenge
// CRITICAL SECURITY FIX: IMMEDIATELY DESTROY THE AAL1 SESSION
// The user MUST NOT have any active session before completing MFA
console.log('[Auth] MFA required - destroying AAL1 session before challenge');
await supabase.auth.signOut();
// Store email and factor ID in component state ONLY
// At this point, user has NO authenticated session
setMfaPendingEmail(formData.email);
setMfaFactorId(totpFactor.id);
setLoading(false);
return; // Stay on page, show MFA modal
return; // User has NO session - MFA modal will show
} else {
// MFA is required but no factor found - FORCE SIGN OUT for security
console.error('[Auth] SECURITY: MFA required but no verified factor found');
@@ -245,35 +253,9 @@ export default function Auth() {
};
const handleMfaCancel = async () => {
try {
// CRITICAL SECURITY: Log cancellation attempt
const { data: { session } } = await supabase.auth.getSession();
if (session) {
try {
const { data: aalData } = await supabase.auth.mfa.getAuthenticatorAssuranceLevel();
await supabase.rpc('log_admin_action', {
_admin_user_id: session.user.id,
_action: 'mfa_verification_cancelled',
_target_user_id: session.user.id,
_details: {
timestamp: new Date().toISOString(),
reason: 'user_cancelled_mfa_prompt',
aal_before_cancel: aalData?.currentLevel || 'aal1'
}
});
} catch (logError) {
console.error('Failed to log MFA cancellation:', logError);
}
}
} catch (error) {
console.error('Error during MFA cancellation:', error);
}
// CRITICAL SECURITY: User cannot bypass MFA if enrolled
// Cancelling MFA prompt MUST sign the user out
await supabase.auth.signOut();
// Clear state variables
setMfaFactorId(null);
setMfaPendingEmail(null);
setSignInCaptchaKey(prev => prev + 1);
toast({