{"id":111907,"date":"2023-12-01T21:10:27","date_gmt":"2023-12-01T19:10:27","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/logofail-ataka-na-uefi-proshivki-cherez-podstanovku-vredonosnyh-logotipov"},"modified":"2023-12-01T21:10:27","modified_gmt":"2023-12-01T19:10:27","slug":"logofail-ataka-na-uefi-proshivki-cherez-podstanovku-vredonosnyh-logotipov","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/logofail-ataka-na-uefi-proshivki-cherez-podstanovku-vredonosnyh-logotipov","title":{"rendered":"LogoFAIL — t\u00e1mad\u00e1s az UEFI firmware-eken kereszt\u00fcl, rosszindulat\u00fa log\u00f3k behelyettes\u00edt\u00e9s\u00e9vel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Binarly kutat\u00f3i sorozat sebezhet\u0151s\u00e9get az UEFI firmware-k k\u00fcl\u00f6nb\u00f6z\u0151 gy\u00e1rt\u00f3in\u00e1l haszn\u00e1lt k\u00e9pk\u00f3dol\u00e1sban azonos\u00edtott\u00e1k. A sebezhet\u0151s\u00e9gek lehet\u0151v\u00e9 teszik, hogy a t\u00e1mad\u00f3 k\u00f3dot futtasson a rendszer ind\u00edt\u00e1sakor, ha kifejezetten form\u00e1zott k\u00e9pet helyez el az ESP (EFI System Partition) r\u00e9szben vagy az al\u00e1\u00edr\u00e1s n\u00e9lk\u00fcli firmware-friss\u00edt\u00e9sek egyes r\u00e9sz\u00e9be. A javasolt t\u00e1mad\u00e1si m\u00f3dszer megker\u00fclheti az UEFI Secure Boot \u00e9s a hardveres v\u00e9delmi mechanizmusok, p\u00e9ld\u00e1ul az Intel Boot Guard, az AMD Hardware-Validated Boot \u00e9s az ARM TrustZone Secure Boot rendszer\u00e9t. <\/p>\n

A probl\u00e9ma abb\u00f3l ad\u00f3dik, hogy a firmware-ek lehet\u0151v\u00e9 teszik a felhaszn\u00e1l\u00f3 \u00e1ltal megadott log\u00f3k megjelen\u00edt\u00e9s\u00e9t, \u00e9s ehhez a firmware szintj\u00e9n, privilegiz\u00e1lt jogosults\u00e1g n\u00e9lk\u00fcl v\u00e9grehajtott k\u00e9pk\u00f3dol\u00f3 k\u00f6nyvt\u00e1rakat haszn\u00e1lnak. Megjegyezt\u00e9k, hogy a modern firmware-ek tartalmaznak k\u00f3dot, amely a BMP, GIF, JPEG, PCX \u00e9s TGA form\u00e1tumok elemz\u00e9s\u00e9re szolg\u00e1l, amelyek sebezhet\u0151s\u00e9geket tartalmaznak, amelyek puffer t\u00falcsordul\u00e1st okozhatnak hib\u00e1s adatok elemz\u00e9sekor. <\/p>\n

A sebezhet\u0151s\u00e9gek k\u00fcl\u00f6nb\u00f6z\u0151 hardvergy\u00e1rt\u00f3k (Intel, Acer, Lenovo) firmware-eiben, valamint firmware-gy\u00e1rt\u00f3k (AMI, Insyde, Phoenix) \u00e1ltal forgalmazott v\u00e1ltozataiban tal\u00e1lhat\u00f3k. Mivel a probl\u00e9m\u00e1s k\u00f3d referenciak\u00e9nt szolg\u00e1l\u00f3, f\u00fcggetlen firmware-szolg\u00e1ltat\u00f3k \u00e1ltal ny\u00fajtott alkatr\u00e9szekben jelen van, \u00e9s ezeket a k\u00fcl\u00f6nb\u00f6z\u0151 hardvergy\u00e1rt\u00f3k a saj\u00e1t firmware-j\u00fck alapjak\u00e9nt haszn\u00e1lj\u00e1k, a sebezhet\u0151s\u00e9gek nem specifikusak a konkr\u00e9t szolg\u00e1ltat\u00f3kra, \u00e9s az eg\u00e9sz \u00f6kosziszt\u00e9m\u00e1t \u00e9rintik. <\/p>\n

A felfedezett sebezhet\u0151s\u00e9gekr\u0151l a Black Hat Europe 2023 konferenci\u00e1n, december 6-\u00e1n fognak b\u0151vebb t\u00e1j\u00e9koztat\u00e1st adni. A konferenci\u00e1n egy exploitot is bemutatnak, amely lehet\u0151v\u00e9 teszi a firmware jogosults\u00e1gokkal rendelkez\u0151 k\u00f3d futtat\u00e1s\u00e1t x86 \u00e9s ARM architekt\u00far\u00e1j\u00fa rendszereken. Eredetileg a Lenovo firmware-einek elemz\u00e9se sor\u00e1n fedezt\u00e9k fel a sebezhet\u0151s\u00e9geket, amelyek az Insyde, AMI \u00e9s Phoenix platformjain alapulnak, de a potenci\u00e1lisan sebezhet\u0151 firmware-ek k\u00f6z\u00f6tt eml\u00edtik az Intel \u00e9s Acer v\u00e1ltozatait is.
\n
Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Binarly \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0441\u0435\u0440\u0438\u044e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u043a\u043e\u0434\u0435 \u0440\u0430\u0437\u0431\u043e\u0440\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u043c \u0432 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u0439. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 \u0447\u0435\u0440\u0435\u0437 \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u0435 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u0432 \u0440\u0430\u0437\u0434\u0435\u043b\u0435 ESP (EFI System Partition) \u0438\u043b\u0438 \u0432 \u043d\u0435 \u0437\u0430\u0432\u0435\u0440\u0435\u043d\u043d\u043e\u0439 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u044c\u044e \u0447\u0430\u0441\u0442\u0438 \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438. \u041f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u043c\u0435\u0442\u043e\u0434 \u0430\u0442\u0430\u043a\u0438 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0434\u043b\u044f \u043e\u0431\u0445\u043e\u0434\u0430 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c\u0430 \u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-111907","post","type-post","status-publish","format-standard","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\udd47LogoFAIL \u2014 t\u00e1mad\u00e1s az UEFI firmware-eken kereszt\u00fcl, rosszindulat\u00fa log\u00f3k behelyettes\u00edt\u00e9s\u00e9vel | ProHoster","description":"A Binarly kutat\u00f3i sorozat sebezhet\u0151s\u00e9get az UEFI firmware-k k\u00fcl\u00f6nb\u00f6z\u0151 gy\u00e1rt\u00f3in\u00e1l haszn\u00e1lt k\u00e9pk\u00f3dol\u00e1sban azonos\u00edtott\u00e1k.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/logofail-ataka-na-uefi-proshivki-cherez-podstanovku-vredonosnyh-logotipov","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47LogoFAIL \u2014 \u0430\u0442\u0430\u043a\u0430 \u043d\u0430 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u0447\u0435\u0440\u0435\u0437 \u043f\u043e\u0434\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0443 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0445 \u043b\u043e\u0433\u043e\u0442\u0438\u043f\u043e\u0432 | ProHoster","og:description":"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 Binarly \u0432\u044b\u044f\u0432\u0438\u043b\u0438 \u0441\u0435\u0440\u0438\u044e \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u043a\u043e\u0434\u0435 \u0440\u0430\u0437\u0431\u043e\u0440\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u043e\u043c \u0432 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 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