{"id":36939,"date":"2019-10-31T22:14:51","date_gmt":"2019-10-31T19:14:51","guid":{"rendered":"https:\/\/prohoster.info\/blog\/opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer\/"},"modified":"2019-10-31T22:14:51","modified_gmt":"2019-10-31T19:14:51","slug":"opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer","status":"publish","type":"post","link":"https:\/\/prohoster.info\/it\/blog\/novosti-interneta\/opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer","title":{"rendered":"\u00c8 stato pubblicato il codice dell'analizzatore di sicurezza dei firmware FwAnalyzer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

L'azienda Cruise, specializzata nelle tecnologie di guida automatizzata per veicoli, ha aperto<\/a><\/noindex> i codici sorgente del progetto FwAnalyzer<\/a><\/noindex>, che fornisce strumenti per analizzare le immagini del firmware basate su Linux e identificare potenziali vulnerabilit\u00e0 e perdite di dati. Il codice \u00e8 scritto in Go e distribuito<\/a><\/noindex> sotto licenza Apache 2.0.<\/p>\n

Supporta l'analisi delle immagini che utilizzano file system ext2\/3\/4, FAT\/VFat, SquashFS e UBIFS. Per l'analisi delle immagini vengono utilizzati strumenti standard come e2tools, mtools, squashfs-tools e ubi_reader. FwAnalyzer estrae dall'immagine l'albero delle directory e valuta il contenuto in base a un insieme di regole. Le regole possono essere collegate ai metadati del file system, al tipo di file e al contenuto. In output viene generato un rapporto in formato JSON, che riassume le informazioni estratte dal firmware e fornisce avvisi e un elenco di file che non rispettano le regole elaborate. <\/p>\n

\u00c8 supportato il controllo dei diritti di accesso a file e directory (ad esempio, viene rilevato l'accesso in scrittura a tutti e l'assegnazione di UID\/GID non corretti), viene determinata la presenza di file eseguibili con il flag suid e l'uso di etichette SELinux, vengono identificati chiavi di crittografia dimenticate e file potenzialmente pericolosi. Vengono evidenziate le password di ingegneria e i dati di debug lasciati nel contenuto, sono estratte informazioni sulle versioni, viene eseguita la verifica del contenuto tramite hash SHA-256 e viene effettuata la ricerca utilizzando maschere statiche e espressioni regolari. \u00c8 possibile collegare script analizzatori esterni a tipi di file specifici. Per i firmware basati su Android vengono determinati i parametri di compilazione (ad esempio, l'uso della modalit\u00e0 ro.secure=1, lo stato di ro.build.type e l'attivazione di SELinux).<\/p>\n

FwAnalyzer pu\u00f2 essere utilizzato per semplificare l'analisi dei problemi di sicurezza nei firmware di terzi, ma il suo scopo principale \u00e8 il controllo della qualit\u00e0 dei propri firmware o di quelli forniti da fornitori terzi in base a contratto. Le regole di FwAnalyzer consentono di creare una specifica accurata dello stato del firmware e di identificare deviazioni inaccettabili, come l'assegnazione di diritti di accesso non corretti o la presenza di chiavi riservate e codice di debug (ad esempio, il controllo permette di evitare situazioni come lasciare<\/a><\/noindex> utilizzato durante la fase di testing del server ssh, una password<\/a><\/noindex> ingegneristica predeterminata, disponibile<\/a><\/noindex> in sola lettura \/etc\/config\/shadow o chiavi<\/a><\/noindex> dimenticate<\/a><\/noindex> per la creazione di firme digitali).<\/p>\n

\"\u00c8<\/a><\/noindex><\/center><\/p>\n

<\/a><\/noindex><\/p>\n

Fonte: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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Il codice \u00e8 scritto in Go e distribuito con licenza Apache 2.0. Supporta l'analisi delle immagini che utilizzano file system ext2\/3\/4, FAT\/VFat, SquashFS e UBIFS. 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