A finit inicializ\u00e1l\u00f3 rendszerben felfedeztek egy sebezhet\u0151s\u00e9get (CVE-2025-29906), amely lehet\u0151v\u00e9 teszi, hogy b\u00e1rmilyen felhaszn\u00e1l\u00f3 bel\u00e9pjen a rendszerbe jelsz\u00f3 ellen\u0151rz\u00e9s n\u00e9lk\u00fcl. A sebezhet\u0151s\u00e9g kihaszn\u00e1l\u00e1sa a bejelentkez\u00e9si prompt manipul\u00e1l\u00e1s\u00e1val t\u00f6rt\u00e9nik, \u00e9s konzol hozz\u00e1f\u00e9r\u00e9st ig\u00e9nyel. A sebezhet\u0151s\u00e9g a 3.0 verzi\u00f3t\u00f3l jelentkezik (2017 okt\u00f3ber\u00e9t\u0151l), \u00e9s a finit 4.11 kiad\u00e1s\u00e1ban jav\u00edtott\u00e1k. Ezt k\u00f6vet\u0151en m\u00e1r l\u00e9trehozt\u00e1k a 4.12 kiad\u00e1st, amelyben jav\u00edtott\u00e1k az urandom pluginben felfedezett puffert\u00falt\u00f6lt\u00e9st, amely nem volt kijel\u00f6lve sebezhet\u0151s\u00e9gk\u00e9nt. <\/p>\n
A sebezhet\u0151s\u00e9g a getty program megval\u00f3s\u00edt\u00e1s\u00e1t \u00e9rinti, amely a bejelentkez\u00e9si promptot jelen\u00edti meg a termin\u00e1lban \u00e9s elind\u00edtja a \/bin\/login folyamatot a felhaszn\u00e1l\u00f3 hiteles\u00edt\u00e9s\u00e9hez. A sebezhet\u0151s\u00e9get az okozza, hogy a parancssori argumentumok elv\u00e1laszt\u00e1sa hi\u00e1nyzik a \/bin\/login ind\u00edt\u00e1sakor, \u00edgy lehet\u0151v\u00e9 t\u00e9ve, hogy a felhaszn\u00e1l\u00f3n\u00e9vben az '-f' opci\u00f3t adjunk meg, ami szerint letiltja a jelsz\u00f3ellen\u0151rz\u00e9st (p\u00e9ld\u00e1ul megadhatjuk a '-f root' nevet a 'root' helyett). A probl\u00e9m\u00e1t \u00fagy oldott\u00e1k meg, hogy az argumentumot '--' hozz\u00e1adt\u00e1k a felhaszn\u00e1l\u00f3n\u00e9v mez\u0151 el\u0151tt: -- execl(_PATH_LOGIN, _PATH_LOGIN, '-p', name, NULL); + execl(_PATH_LOGIN, _PATH_LOGIN, '-p', '--', name, NULL); <\/p>\n
A sebezhet\u0151s\u00e9g blokkol\u00e1s\u00e1nak alternat\u00edv\u00e1jak\u00e9nt javasolt a finit keret\u00e9ben az getty folyamat k\u00fcls\u0151 megval\u00f3s\u00edt\u00e1s\u00e1nak haszn\u00e1lata, p\u00e9ld\u00e1ul az agetty-t. A Debian 12, Ubuntu, Parrot, Raspbian \u00e9s Trisquel disztrib\u00faci\u00f3kban a finit csomagok egyel\u0151re hibajav\u00edt\u00e1s n\u00e9lk\u00fcl maradnak. <\/p>\n
A Finit inicializ\u00e1l\u00f3 rendszer (Fast init) egyszer\u0171 alternat\u00edvak\u00e9nt fejl\u0151dik a SysV init \u00e9s a systemd mellett, \u00e9s elterjedt be\u00e1gyazott rendszerekben. A projekt a fastinit inicializ\u00e1l\u00f3 rendszer technol\u00f3gi\u00e1in alapul, amelyet az EeePC netbookok Linux firmware-j\u00e9ben haszn\u00e1ltak, \u00e9s amelyet a nagyon gyors ind\u00edt\u00e1si folyamat jellemez. A Finit t\u00e1mogatja a SysV init st\u00edlus\u00fa v\u00e9grehajt\u00e1si szinteket (runlevel), a szolg\u00e1ltat\u00e1s automatikus \u00fajraind\u00edt\u00e1s\u00e1t hiba eset\u00e9n, egyszeri kezel\u0151k v\u00e9grehajt\u00e1s\u00e1t, a szolg\u00e1ltat\u00e1sok ind\u00edt\u00e1s\u00e1t f\u00fcgg\u0151s\u00e9gekkel \u00e9s tetsz\u0151leges felt\u00e9telekkel, tov\u00e1bbi kezel\u0151k csatol\u00e1s\u00e1t a szolg\u00e1ltat\u00e1s v\u00e9grehajt\u00e1sa el\u0151tt vagy ut\u00e1n, funkci\u00f3k b\u0151v\u00edt\u00e9s\u00e9t plugineken kereszt\u00fcl, valamint korl\u00e1toz\u00e1sok be\u00e1ll\u00edt\u00e1s\u00e1t a Cgroups v2 seg\u00edts\u00e9g\u00e9vel. \u0412 \u0441\u0438\u0441\u0442\u0435\u043c\u0435 \u0438\u043d\u0438\u0446\u0438\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 finit \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0430 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c (CVE-2025-29906), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u0432\u043e\u0439\u0442\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0443 \u043f\u043e\u0434 \u043b\u044e\u0431\u044b\u043c \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u043c \u0431\u0435\u0437 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043f\u0430\u0440\u043e\u043b\u044f. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0447\u0435\u0440\u0435\u0437 \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u044e \u0441 \u043f\u0440\u0438\u0433\u043b\u0430\u0448\u0435\u043d\u0438\u0435\u043c \u0432\u0445\u043e\u0434\u0430 (login) \u0438 \u0442\u0440\u0435\u0431\u0443\u0435\u0442 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u043a\u043e\u043d\u0441\u043e\u043b\u0438. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u043d\u0430\u0447\u0438\u043d\u0430\u044f \u0441 \u0432\u0435\u0440\u0441\u0438\u0438 3.0 (\u043e\u043a\u0442\u044f\u0431\u0440\u044c 2017 \u0433\u043e\u0434\u0430) \u0438 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430 \u0432 \u0432\u044b\u043f\u0443\u0441\u043a\u0435 finit 4.11. \u0421\u043b\u0435\u0434\u043e\u043c \u0443\u0436\u0435 \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0432\u044b\u043f\u0443\u0441\u043a 4.12 \u0432 \u043a\u043e\u0442\u043e\u0440\u043e\u043c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u043e […]<\/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-123909","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\udd47Sebezhet\u0151s\u00e9g a finit inicializ\u00e1l\u00f3 rendszerben, amely lehet\u0151v\u00e9 teszi a jelsz\u00f3 n\u00e9lk\u00fcli bejelentkez\u00e9st | ProHoster","description":"A finit inicializ\u00e1l\u00f3 rendszerben felfedeztek egy sebezhet\u0151s\u00e9get (CVE-2025-29906), amely lehet\u0151v\u00e9 teszi, hogy b\u00e1rmilyen felhaszn\u00e1l\u00f3 bel\u00e9pjen a rendszerbe jelsz\u00f3 ellen\u0151rz\u00e9s 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Forr\u00e1s: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"