{"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\/cs\/blog\/news\/opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer","title":{"rendered":"Byl zve\u0159ejn\u011bn k\u00f3d analyz\u00e1toru bezpe\u010dnosti firmwaru FwAnalyzer","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Spole\u010dnost Cruise, specializuj\u00edc\u00ed se na technologie automatick\u00e9ho \u0159\u00edzen\u00ed automobil\u016f, otev\u0159ela<\/a><\/noindex> zdrojov\u00e9 k\u00f3dy projektu FwAnalyzer<\/a><\/noindex>, poskytuj\u00edc\u00ed n\u00e1stroje pro anal\u00fdzu obraz\u016f firmwaru zalo\u017een\u00e9ho na Linuxu a identifikaci potenci\u00e1ln\u00edch zranitelnost\u00ed a \u00fanik\u016f dat. K\u00f3d je naps\u00e1n v jazyce Go a distribuov\u00e1no<\/a><\/noindex> pod licenc\u00ed Apache 2.0.<\/p>\n

podporuje anal\u00fdzu obraz\u016f vyu\u017e\u00edvaj\u00edc\u00edch souborov\u00e9 syst\u00e9my ext2\/3\/4, FAT\/VFat, SquashFS a UBIFS. Pro rozbalen\u00ed obrazu se pou\u017e\u00edvaj\u00ed standardn\u00ed utility, jako jsou e2tools, mtools, squashfs-tools a ubi_reader. FwAnalyzer extrahuje z obrazu strom adres\u00e1\u0159\u016f a prov\u00e1d\u00ed hodnocen\u00ed obsahu na z\u00e1klad\u011b sady pravidel. Pravidla mohou b\u00fdt v\u00e1z\u00e1na na metadata FS, typy soubor\u016f a obsah. Na v\u00fdstupu se vytv\u00e1\u0159\u00ed zpr\u00e1va ve form\u00e1tu JSON, kter\u00e1 shrnuje extrahovan\u00e9 informace z firmwaru a uv\u00e1d\u00ed varov\u00e1n\u00ed a seznam soubor\u016f, kter\u00e9 neodpov\u00eddaj\u00ed zpracov\u00e1van\u00fdm pravidl\u016fm. <\/p>\n

Podporuje kontrolu pr\u00e1v p\u0159\u00edstupu k soubor\u016fm a adres\u00e1\u0159\u016fm (nap\u0159\u00edklad se zjist\u00ed, zda je povolen z\u00e1pis pro v\u0161echny a bylo zde nastaveno nespr\u00e1vn\u00e9 UID\/GID), zji\u0161\u0165uje p\u0159\u00edtomnost spustiteln\u00fdch soubor\u016f s flagem suid a pou\u017e\u00edv\u00e1n\u00ed tag\u016f SELinux, identifikuj\u00ed se zapomenut\u00e9 \u0161ifrovac\u00ed kl\u00ed\u010de a potenci\u00e1ln\u011b nebezpe\u010dn\u00e9 soubory. V obsahu se vyzdvihuj\u00ed zapomenut\u00e1 in\u017een\u00fdrsk\u00e1 hesla a ladic\u00ed data, identifikuj\u00ed se informace o verz\u00edch, prov\u00e1d\u00ed se porovn\u00e1n\u00ed obsahu podle SHA-256 hash\u016f a vyhled\u00e1v\u00e1n\u00ed pomoc\u00ed statick\u00fdch mask a regul\u00e1rn\u00edch v\u00fdraz\u016f. Je mo\u017en\u00e9 v\u00e1zat extern\u00ed analyz\u00e1tory skript\u016f na ur\u010dit\u00e9 typy soubor\u016f. Pro firmwary zalo\u017een\u00e9 na Androidu se ur\u010duj\u00ed parametry sestaven\u00ed (nap\u0159\u00edklad pou\u017eit\u00ed re\u017eimu ro.secure=1, stav ro.build.type a aktivace SELinux).<\/p>\n

FwAnalyzer lze pou\u017e\u00edt k usnadn\u011bn\u00ed anal\u00fdzy probl\u00e9m\u016f s bezpe\u010dnost\u00ed ve ciz\u00edch firmech, ale hlavn\u00edm \u00fa\u010delem je kontrola kvality vlastn\u00edch firmwar\u016f nebo dod\u00e1van\u00fdch t\u0159et\u00edmi dodavateli na z\u00e1klad\u011b smlouvy. Pravidla FwAnalyzer umo\u017e\u0148uj\u00ed vytvo\u0159it p\u0159esnou specifikaci stavu firmwaru a identifikovat nep\u0159ijateln\u00e1 odchylky, jako je p\u0159i\u0159azen\u00ed nespr\u00e1vn\u00fdch p\u0159\u00edstupov\u00fdch pr\u00e1v nebo ponech\u00e1n\u00ed uzav\u0159en\u00fdch kl\u00ed\u010d\u016f a ladic\u00edho k\u00f3du (nap\u0159\u00edklad kontrola umo\u017e\u0148uje p\u0159edej\u00edt situac\u00edm jako ponech\u00e1n\u00ed<\/a><\/noindex> pou\u017e\u00edvan\u00e9ho p\u0159i testov\u00e1n\u00ed ssh serveru, p\u0159edem ur\u010den\u00e9<\/a><\/noindex> in\u017een\u00fdrsk\u00e9 heslo, dostupn\u00fd<\/a><\/noindex> na \u010dten\u00ed \/etc\/config\/shadow nebo zapomenut\u00e9<\/a><\/noindex> kl\u00ed\u010de<\/a><\/noindex> pro vytv\u00e1\u0159en\u00ed digit\u00e1ln\u00edho podpisu).<\/p>\n

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

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

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

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SquashFS \u0438 UBIFS. \u0414\u043b\u044f \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":27676,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-36939","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Byl zve\u0159ejn\u011bn k\u00f3d analyz\u00e1toru bezpe\u010dnosti firmwaru FwAnalyzer | ProHoster","description":"Spole\u010dnost Cruise, kter\u00e1 se specializuje na technologie autonomn\u00edho \u0159\u00edzen\u00ed vozidel, 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