{"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\/ro\/blog\/news\/opublikovan-kod-analizatora-bezopasnosti-proshivok-fwanalyzer","title":{"rendered":"A fost publicat codul analizatorului de securitate pentru firmware-uri FwAnalyzer.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Compania Cruise, specializat\u0103 \u00een tehnologii de control automat al vehiculelor, a deschis<\/a><\/noindex> codurile surs\u0103 ale proiectului FwAnalyzer<\/a><\/noindex>, oferind instrumente pentru analiza imaginilor firmware pe baza Linux \u0219i identificarea posibilelor vulnerabilit\u0103\u021bi \u0219i scurgeri de date. Codul este scris \u00een limbajul Go \u0219i se r\u0103sp\u00e2nde\u0219te<\/a><\/noindex> sub licen\u021ba Apache 2.0.<\/p>\n

suport\u0103 analiza imaginilor care utilizeaz\u0103 sisteme de fi\u0219iere ext2\/3\/4, FAT\/VFat, SquashFS \u0219i UBIFS. Pentru extragerea imaginii sunt folosite utilitare standard, cum ar fi e2tools, mtools, squashfs-tools \u0219i ubi_reader. FwAnalyzer extrage din imagine structura directoarelor \u0219i evalueaz\u0103 con\u021binutul pe baza unui set de reguli. Reguli pot fi legate de metadatele FS, tipul fi\u0219ierelor \u0219i con\u021binut. La final, un raport \u00een format JSON este generat, care rezum\u0103 informa\u021biile extrase din firmware \u0219i emite avertismente \u0219i o list\u0103 de fi\u0219iere care nu respect\u0103 regulile procesate. <\/p>\n

Suport\u0103 verificarea permisiunilor pentru fi\u0219iere \u0219i directoare (de exemplu, identificarea accesului de scriere pentru to\u021bi \u0219i al set\u0103rilor incorecte de UID\/GID), determin\u0103 existen\u021ba fi\u0219ierelor executabile cu flagul suid \u0219i utilizarea etichetelor SELinux, identific\u0103 cheile de criptare uitate \u0219i fi\u0219ierele poten\u021bial periculoase. \u00cen con\u021binut sunt eviden\u021biate parolele de inginerie l\u0103sate \u0219i datele de depanare, se extrag informa\u021bii despre versiuni, se face determinarea\/verificarea con\u021binutului pe baza hash-urilor SHA-256 \u0219i se efectueaz\u0103 c\u0103ut\u0103ri folosind m\u0103\u0219ti statice \u0219i expresii regulate. Este posibil\u0103 ata\u0219area de scripturi externe de analiz\u0103 pentru anumite tipuri de fi\u0219iere. Pentru firmware-urile bazate pe Android, se determin\u0103 parametrii de construc\u021bie (de exemplu, utilizarea modului ro.secure=1, starea ro.build.type \u0219i activarea SELinux).<\/p>\n

FwAnalyzer poate fi folosit pentru a simplifica analiza problemelor de securitate \u00een firmware-urile altora, dar scopul principal este controlul calit\u0103\u021bii propriilor firmware-uri sau celor furnizate de ter\u021bi prin contract. Regulele FwAnalyzer permit generarea unei specifica\u021bii precise a st\u0103rii firmware-ului \u0219i identificarea abaterilor inacceptabile, cum ar fi atribuirea unor permisiuni gre\u0219ite sau l\u0103sarea cheilor private \u0219i a codului de depanare (de exemplu, verificarea permite evitarea unor situa\u021bii cum ar fi l\u0103sarea<\/a><\/noindex> utilizat \u00een etapa de testare a serverului ssh, parola<\/a><\/noindex> de inginerie predefinit\u0103, disponibil\u0103<\/a><\/noindex> pentru citire \/etc\/config\/shadow sau cheile<\/a><\/noindex> uitate<\/a><\/noindex> pentru generarea semn\u0103turii digitale).<\/p>\n

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

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

Sursa: opennet.ro<\/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\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\udd47A fost publicat codul analizatorului de securitate pentru firmware FwAnalyzer | ProHoster","description":"Compania Cruise, specializat\u0103 \u00een tehnologiile de conducere automat\u0103 a bicicletelor, a fost 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