{"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\/sv\/blog\/news\/opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer","title":{"rendered":"Koden f\u00f6r s\u00e4kerhetsanalysatorn f\u00f6r inbyggd programvara FwAnalyzer har publicerats","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>F\u00f6retaget Cruise, som specialiserar sig p\u00e5 teknologier f\u00f6r automatiserad bilstyrning, <noindex><a rel=\"nofollow\" href=\"https:\/\/medium.com\/cruise\/firmware-security-fwanalyzer-dcbd95cef717\">\u00f6ppnade<\/a><\/noindex> \u00f6ppna k\u00e4llkoder f\u00f6r projektet  <noindex><a rel=\"nofollow\" href=\"https:\/\/www.fwanalyzer.io\">FwAnalyzer<\/a><\/noindex>, som erbjuder verktyg f\u00f6r att analysera Linux-baserade firmwarebilder och identifiera potentiella s\u00e5rbarheter och datal\u00e4ckor. Koden \u00e4r skriven i Go och <noindex><a rel=\"nofollow\" href=\"https:\/\/github.com\/cruise-automation\/fwanalyzer\">sprids<\/a><\/noindex> \u00e4r licensierad under Apache 2.0.<\/p>\n<p>analyserar bilder som anv\u00e4nder filsystemen ext2\/3\/4, FAT\/VFat, SquashFS och UBIFS. F\u00f6r att avt\u00e4cka bilden anv\u00e4nds standardverktyg som e2tools, mtools, squashfs-tools och ubi_reader. FwAnalyzer extraherar katalogtr\u00e4det fr\u00e5n bilden och utv\u00e4rderar inneh\u00e5llet baserat p\u00e5 en upps\u00e4ttning regler. Reglerna kan kopplas till filsystemmetadata, filtyper och inneh\u00e5ll. Rapporten genereras i JSON-format och summerar den information som extraherats fr\u00e5n firmware och ger varningar samt en lista \u00f6ver filer som inte uppfyller de behandlingade reglerna. <\/p>\n<p>Det st\u00f6djer kontroll av fil- och katalogtillg\u00e5ngar (till exempel identifieras skriv\u00e5tkomst f\u00f6r alla och felaktiga UID\/GID), det fastst\u00e4lls om exekverbara filer har suid-flagga och anv\u00e4nder SELinux-taggar, gl\u00f6mda krypteringsnycklar och potentiellt farliga filer identifieras. I inneh\u00e5llet markeras kvarl\u00e4mnade ingenj\u00f6rsl\u00f6senord och fels\u00f6kningsdata, versionsinformation utpekas, hash-checking med SHA-256 utf\u00f6rs och s\u00f6kningar g\u00f6rs med hj\u00e4lp av statiska masker och regulj\u00e4ra uttryck. Det \u00e4r m\u00f6jligt att koppla externa analyskript till vissa filtyper. F\u00f6r Android-baserade firmware identifieras byggparametrar (till exempel anv\u00e4ndning av l\u00e4get ro.secure=1, tillst\u00e5ndet ro.build.type och aktivering av SELinux).<\/p>\n<p>FwAnalyzer kan anv\u00e4ndas f\u00f6r att f\u00f6renkla analysen av s\u00e4kerhetsproblem i andras firmware, men huvudsakligt syfte \u00e4r att kontrollera kvaliteten p\u00e5 egna firmware eller de som levereras av externa leverant\u00f6rer enligt kontrakt. FwAnalyzers regler g\u00f6r det m\u00f6jligt att skapa en exakt specifikation av firmwarestatus och identifiera oacceptabla avvikelser, s\u00e5som felaktiga \u00e5tkomstr\u00e4ttigheter eller kvarl\u00e4mnade hemliga nycklar och fels\u00f6kningskod (till exempel g\u00f6r kontrollerna det m\u00f6jligt att undvika s\u00e5dana situationer som <noindex><a rel=\"nofollow\" href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2018-5399\">kvarl\u00e4mnandet<\/a><\/noindex> av den ssh-server som anv\u00e4ndes under testningen, <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=46175\">f\u00f6rutbest\u00e4md<\/a><\/noindex> ingenj\u00f6rsl\u00f6senord, <noindex><a rel=\"nofollow\" href=\"https:\/\/cve.mitre.org\/cgi-bin\/cvename.cgi?name=CVE-2014-5457\">\u00e5tkomlig<\/a><\/noindex> f\u00f6r l\u00e4sning \/etc\/config\/shadow eller <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=43043\">gl\u00f6mda<\/a><\/noindex> <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=42986\">nycklar<\/a><\/noindex> f\u00f6r skapande av digitala signaturer).<\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/miro.medium.com\/max\/627\/0*pHcZA7XBqCy_pv2V?a.png\"><img decoding=\"async\" alt=\"Koden f\u00f6r s\u00e4kerhetsanalysatorn f\u00f6r inbyggd programvara FwAnalyzer har publicerats\" src=\"\/wp-content\/uploads\/2019\/08\/e4fe0f2486b7a3755e388756b8deafc9.png\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>K\u00e4lla: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51249\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cruise, \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u044e\u0449\u0430\u044f\u0441\u044f \u043d\u0430 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044f\u0445 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0430\u0432\u0442\u043e\u043c\u043e\u0431\u0438\u043b\u044f\u043c\u0438, \u043e\u0442\u043a\u0440\u044b\u043b\u0430 \u0438\u0441\u0445\u043e\u0434\u043d\u044b\u0435 \u0442\u0435\u043a\u0441\u0442\u044b \u043f\u0440\u043e\u0435\u043a\u0442\u0430 FwAnalyzer, \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u044e\u0449\u0435\u0433\u043e \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u044b \u0434\u043b\u044f \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u043e\u0431\u0440\u0430\u0437\u043e\u0432 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a \u043d\u0430 \u0431\u0430\u0437\u0435 Linux \u0438 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f \u0432 \u043d\u0438\u0445 \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u044b\u0445 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0438 \u0443\u0442\u0435\u0447\u0435\u043a \u0434\u0430\u043d\u043d\u044b\u0445. \u041a\u043e\u0434 \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u044f\u0437\u044b\u043a\u0435 Go \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 Apache 2.0. \u041f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442\u0441\u044f \u0430\u043d\u0430\u043b\u0438\u0437 \u043e\u0431\u0440\u0430\u0437\u043e\u0432, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u0444\u0430\u0439\u043b\u043e\u0432\u044b\u0435 \u0441\u0438\u0441\u0442\u0435\u043c\u044b ext2\/3\/4, FAT\/VFat, SquashFS \u0438 UBIFS. \u0414\u043b\u044f \u0440\u0430\u0441\u043a\u0440\u044b\u0442\u0438\u044f [&hellip;]<\/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<!-- All in One SEO 5.0.4 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Cruise, \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u0438\u0437\u0438\u0440\u0443\u044e\u0449\u0430\u044f\u0441\u044f \u043d\u0430 \u0442\u0435\u0445\u043d\u043e\u043b\u043e\u0433\u0438\u044f\u0445 \u0430\u0432\u0442\u043e\u043c\u0430\u0442\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f 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