{"id":112924,"date":"2024-01-15T17:28:03","date_gmt":"2024-01-15T15:28:03","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-patchah-red-hat-k-zagruzchiku-grub2-pozvolyayushhaya-obojti-proverku-parolya"},"modified":"2024-01-15T17:28:03","modified_gmt":"2024-01-15T15:28:03","slug":"uyazvimost-v-patchah-red-hat-k-zagruzchiku-grub2-pozvolyayushhaya-obojti-proverku-parolya","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/uyazvimost-v-patchah-red-hat-k-zagruzchiku-grub2-pozvolyayushhaya-obojti-proverku-parolya","title":{"rendered":"Dob\u00ebsi n\u00eb patch-et e Red Hat p\u00ebr ngarkuesin GRUB2, q\u00eb lejon anashkalimin e verifikimit t\u00eb fjal\u00ebkalimit","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Informacioni mbi nj\u00eb vulnerabilitet (CVE-2023-4001) n\u00eb patch-et p\u00ebr menaxherin e ngarkes\u00ebs GRUB2, t\u00eb p\u00ebrgatitur nga kompania Red Hat, \u00ebsht\u00eb zbuluar. Ky vulnerabilitet lejon, n\u00eb shum\u00eb sisteme me UEFI, t\u00eb anashkaloni verifikimin e fjal\u00ebkalimit t\u00eb vendosur n\u00eb GRUB2 p\u00ebr t\u00eb kufizuar qasjen n\u00eb menun\u00eb e ngarkes\u00ebs ose n\u00eb linj\u00ebn e komand\u00ebs s\u00eb ngarkes\u00ebs. Problemi shkaktohet nga nj\u00eb ndryshim t\u00eb shtuar nga Red Hat n\u00eb paket\u00ebn e GRUB2 q\u00eb ofrohet n\u00eb RHEL dhe Fedora Linux. Problemi nuk shfaqet n\u00eb projektin kryesor t\u00eb GRUB2 dhe ndikon vet\u00ebm n\u00eb distribuimet q\u00eb kan\u00eb aplikuar patch-e shtes\u00eb nga Red Hat. <\/p>\n

Problemi \u00ebsht\u00eb shkaktuar nga nj\u00eb gabim n\u00eb logjik\u00ebn e p\u00ebrdorimit t\u00eb UUID p\u00ebr t\u00eb k\u00ebrkuar ngarkuesin e pajisjeve me skedarin e konfigurimit (p\u00ebr shembull, \"\/boot\/efi\/EFI\/fedora\/grub.cfg\"), q\u00eb p\u00ebrmban hash-in e fjal\u00ebkalimit. P\u00ebr t\u00eb anashkaluar autentikimin, nj\u00eb p\u00ebrdorues me akses fizik n\u00eb kompjuter mund t\u00eb lidh\u00eb nj\u00eb ruajt\u00ebs t\u00eb jasht\u00ebm, si nj\u00eb USB Flash, duke i dh\u00ebn\u00eb UUID-n\u00eb q\u00eb p\u00ebrs\u00ebrit identifikuesin e ndarjes ngarkuese \\\/boot t\u00eb sistemit t\u00eb sulmuar. <\/p>\n

Shum\u00eb sisteme UEFI fillimisht p\u00ebrpunojn\u00eb ruajt\u00ebsit e jasht\u00ebm dhe i vendosin ata n\u00eb list\u00ebn e pajisjeve t\u00eb zbuluara p\u00ebrpara ruajt\u00ebsve t\u00eb brendsh\u00ebm, k\u00ebshtu q\u00eb ndarja \\\/boot e p\u00ebrgatitur nga sulmuesi do t\u00eb ket\u00eb p\u00ebrpar\u00ebsi gjat\u00eb p\u00ebrpunimit, dhe p\u00ebr k\u00ebt\u00eb arsye, nga ajo ndarje GRUB2 do t\u00eb p\u00ebrpiqet t\u00eb ngarkoj\u00eb skedarin e konfigurimit. Gjat\u00eb procesit t\u00eb k\u00ebrkimit t\u00eb ndarjes me komand\u00ebn \"search\" n\u00eb GRUB2, p\u00ebrcaktohet vet\u00ebm ndarja e par\u00eb e p\u00ebrputhshme UUID, pas s\u00eb cil\u00ebs k\u00ebrkimi ndalet. N\u00ebse n\u00eb ndarjen e caktuar skedari kryesor i konfigurimit nuk gjendet, GRUB2 do t\u00eb nxjerr\u00eb nj\u00eb ftes\u00eb p\u00ebr komand\u00ebn q\u00eb lejon kontroll t\u00eb plot\u00eb mbi procesin e m\u00ebtejsh\u00ebm t\u00eb ngarkes\u00ebs. <\/p>\n

P\u00ebrdoruesi lokal pa privilegje mund t\u00eb p\u00ebrdor\u00eb utilitarin \"lsblk\" p\u00ebr t\u00eb p\u00ebrcaktuar UUID-n\u00eb e ndarjes, por nj\u00eb p\u00ebrdorues i jasht\u00ebm, q\u00eb nuk ka akses n\u00eb sistem, por q\u00eb mund t\u00eb v\u00ebzhgoj\u00eb procesin e ngarkes\u00ebs, n\u00eb disa distribucione mund t\u00eb p\u00ebrcaktoj\u00eb UUID-n\u00eb nga mesazhet diagnostikuese q\u00eb shfaqen gjat\u00eb ngarkes\u00ebs. Kjo dob\u00ebsi \u00ebsht\u00eb zgjidhur nga Red Hat p\u00ebrmes shtimit t\u00eb nj\u00eb argumenti t\u00eb ri n\u00eb komand\u00ebn \"search\", i cili lejon q\u00eb operacioni i skanimit t\u00eb UUID-ve t\u00eb lidhet vet\u00ebm me pajisjet bllok q\u00eb p\u00ebrdoren p\u00ebr t\u00eb nisur menaxherin e ngarkes\u00ebs (dmth. ndarja \\\/boot duhet t\u00eb jet\u00eb vet\u00ebm n\u00eb t\u00eb nj\u00ebjtin disk me ndarjen sistematike EFI).
\n
Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0420\u0430\u0441\u043a\u0440\u044b\u0442\u0430 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2023-4001) \u0432 \u043f\u0430\u0442\u0447\u0430\u0445 \u043a \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0443 GRUB2, \u043f\u043e\u0434\u0433\u043e\u0442\u043e\u0432\u043b\u0435\u043d\u043d\u044b\u0445 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Red Hat. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043d\u0430 \u043c\u043d\u043e\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441 UEFI \u043e\u0431\u043e\u0439\u0442\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443 \u043f\u0430\u0440\u043e\u043b\u044f, \u0432\u044b\u0441\u0442\u0430\u0432\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u0432 GRUB2 \u0434\u043b\u044f \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043a \u0437\u0430\u0433\u0440\u0443\u0437\u043e\u0447\u043d\u043e\u043c\u0443 \u043c\u0435\u043d\u044e \u0438\u043b\u0438 \u043a\u043e\u043c\u0430\u043d\u0434\u043d\u043e\u0439 \u0441\u0442\u0440\u043e\u043a\u0435 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0430. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d\u0430 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0435\u043c, \u0434\u043e\u0431\u0430\u0432\u043b\u0435\u043d\u043d\u044b\u043c \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0435\u0439 Red Hat \u0432 \u043f\u0430\u043a\u0435\u0442 \u0441 GRUB2, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u0439 \u0432 RHEL \u0438 Fedora Linux. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 […]<\/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-112924","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\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\udd47 Dob\u00ebsia n\u00eb patch-et e Red Hat p\u00ebr bootloader-in GRUB2, q\u00eb lejon kalimin e verifikimit t\u00eb fjal\u00ebkalimit | ProHoster","description":"Informacioni mbi nj\u00eb dob\u00ebsi (CVE-2023-4001) n\u00eb patch-et p\u00ebr bootloader-in GRUB2, p\u00ebrgatitur nga kompanis\u00eb Red 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