{"id":118544,"date":"2024-07-29T09:43:08","date_gmt":"2024-07-29T07:43:08","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/oshibka-v-lsm-module-landlock-pozvolyala-zanovo-poluchit-sbroshennye-privilegii"},"modified":"2024-07-29T09:43:08","modified_gmt":"2024-07-29T07:43:08","slug":"oshibka-v-lsm-module-landlock-pozvolyala-zanovo-poluchit-sbroshennye-privilegii","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/oshibka-v-lsm-module-landlock-pozvolyala-zanovo-poluchit-sbroshennye-privilegii","title":{"rendered":"Viga Landlock LSM-moodulis v\u00f5imaldas taastada t\u00fchistatud privileegid.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Jann Horn, kes t\u00f6\u00f6tab Google Project Zero-s ja avastas varem Spectre'i ja Meltdown'i haavatavused, leidis loogika vea Linuxi turvamooduli (LSM) Landlock rakenduses, mis v\u00f5imaldab programmil taastada juba loobitud privileegid, kui programm p\u00e4\u00e4seb juurde s\u00fcsteemik\u00f5nedele fork() ja keyctl(). <\/p>\n

Landlocki mehhanism v\u00f5imaldab mitteprivilegeeritud programmidel loobuda ebavajalikest t\u00f6\u00f6ks vajalikest privileegidest, piirates vabatahtlikult oma edasist ligip\u00e4\u00e4su s\u00fcsteemile, et suurendada turvalisust, n\u00e4iteks kaitsmiseks haavatavuste \u00e4rakasutamise katsetes. N\u00e4iteks v\u00f5ib programm keelata endale juurdep\u00e4\u00e4su failidele v\u00e4ljaspool t\u00f6\u00f6kausta. <\/p>\n

Kuidas avastas Google'i insener, et m\u00f5ned olukorrad polnud mooduli arendajate poolt ette n\u00e4htud ja see v\u00f5imaldab programmil teatud tingimustel taastada loovutatud privileegid. Viga eksisteerib k\u00f5igis k\u00e4rude versioonides, kus on LSM-moodul Landlock, kuna see on olemas mooduli esialgses rakenduses. T\u00f5rke parandamine on kaasatud t\u00e4nasesse 6.11-rc1 kerneli testv\u00e4ljalaskesse, kuid pole veel kantud stabiilsetesse harudesse.
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u042f\u043d\u043d \u0425\u043e\u0440\u043d (Jann Horn) \u0438\u0437 \u043a\u043e\u043c\u0430\u043d\u0434\u044b Google Project Zero, \u0432 \u0441\u0432\u043e\u0451 \u0432\u0440\u0435\u043c\u044f \u0432\u044b\u044f\u0432\u0438\u0432\u0448\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 Spectre \u0438 Meltdown, \u043d\u0430\u0448\u0451\u043b \u043b\u043e\u0433\u0438\u0447\u0435\u0441\u043a\u0443\u044e \u043e\u0448\u0438\u0431\u043a\u0443 \u0432 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u043c\u043e\u0434\u0443\u043b\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 Linux (LSM) Landlock, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0443\u044e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043e\u0431\u0440\u0430\u0442\u043d\u043e \u0443\u0436\u0435 \u0441\u0431\u0440\u043e\u0448\u0435\u043d\u043d\u044b\u0435 \u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0438, \u0432 \u0441\u043b\u0443\u0447\u0430\u0435 \u043d\u0430\u043b\u0438\u0447\u0438\u0438 \u0443 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u044b \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u044b\u043c \u0432\u044b\u0437\u043e\u0432\u0430\u043c fork() \u0438 keyctl(). \u041c\u0435\u0445\u0430\u043d\u0438\u0437\u043c Landlock \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043d\u0435\u043f\u0440\u0438\u0432\u0438\u043b\u0435\u0433\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u043c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0430\u043c \u0441\u0431\u0440\u0430\u0441\u044b\u0432\u0430\u0442\u044c \u043d\u0435\u043d\u0443\u0436\u043d\u044b\u0435 \u0434\u043b\u044f \u0440\u0430\u0431\u043e\u0442\u044b […]<\/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-118544","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"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\udd47LSM-mooduli Landlock viga v\u00f5imaldas taastada juba loobitud privileegid | ProHoster","description":"Jann Horn, kes t\u00f6\u00f6tab Google Project Zero-s ja avastas varem Spectre'i ja Meltdown'i haavatavused, leidis loogika vea Linuxi turvamooduli (LSM) Landlock rakenduses, mis v\u00f5imaldab programmil taastada juba loobitud privileegid, kui programm p\u00e4\u00e4seb juurde s\u00fcsteemik\u00f5nedele fork() ja keyctl(). 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