{"id":38554,"date":"2019-10-31T22:24:30","date_gmt":"2019-10-31T19:24:30","guid":{"rendered":"https:\/\/prohoster.info\/blog\/v-yadro-linux-5-4-prinyaty-patchi-dlya-ogranicheniya-dostupa-root-k-vnutrennostyam-yadra\/"},"modified":"2019-10-31T22:24:30","modified_gmt":"2019-10-31T19:24:30","slug":"v-yadro-linux-5-4-prinyaty-patchi-dlya-ogranicheniya-dostupa-root-k-vnutrennostyam-yadra","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/v-yadro-linux-5-4-prinyaty-patchi-dlya-ogranicheniya-dostupa-root-k-vnutrennostyam-yadra","title":{"rendered":"N\u00eb b\u00ebrthamen Linux 5.4 jan\u00eb pranuar patch-e p\u00ebr kufizimin e qasjes s\u00eb root-it n\u00eb brend\u00ebsit\u00eb e b\u00ebrtham\u00ebs","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Linus Torvalds pranoi<\/a><\/noindex> n\u00eb p\u00ebrb\u00ebrjen e versionit t\u00eb ardhsh\u00ebm t\u00eb b\u00ebrtham\u00ebs Linux 5.4 \u00ebsht\u00eb nj\u00eb grup patch-esh «lockdown<\/a><\/noindex>«, propozuar<\/a><\/noindex>\tnga David Howells (punon n\u00eb Red Hat) dhe Matthew Garrett (Matthew Garrett<\/a><\/noindex>, punon n\u00eb Google) p\u00ebr t\u00eb kufizuar aksesin e p\u00ebrdoruesit root n\u00eb b\u00ebrthama. Funksionaliteti i lidhur me «lockdown» \u00ebsht\u00eb nxjerr\u00eb n\u00eb nj\u00eb modull opsional LSM q\u00eb ngarkohet n\u00eb m\u00ebnyr\u00eb opsionale (Moduli i Siguris\u00eb s\u00eb Linuxit<\/a><\/noindex>), q\u00eb vendos nj\u00eb barrier\u00eb midis UID 0 dhe b\u00ebrtham\u00ebs, duke kufizuar disa funksionalitete t\u00eb nivelit t\u00eb ul\u00ebt.<\/p>\n

N\u00ebse nj\u00eb sulmues arrin t\u00eb ekzekutoj\u00eb kodin me t\u00eb drejta root si pasoj\u00eb e nj\u00eb sulmi, ai mund t\u00eb ekzekutoj\u00eb kodin e tij edhe n\u00eb nivelin e b\u00ebrtham\u00ebs, p\u00ebr shembull, p\u00ebrmes z\u00ebvend\u00ebsimit t\u00eb b\u00ebrtham\u00ebs p\u00ebrmes kexec ose duke lexuar\/shkruar n\u00eb memorie p\u00ebrmes \/dev\/kmem. Pasojat m\u00eb t\u00eb dukshme t\u00eb nj\u00eb aktiviteti t\u00eb till\u00eb mund t\u00eb jen\u00eb zhvendosja<\/a><\/noindex> e UEFI Secure Boot ose nxjerrja e t\u00eb dh\u00ebnave t\u00eb ndjeshme q\u00eb ruhen n\u00eb nivelin e b\u00ebrtham\u00ebs.<\/p>\n

Fillimisht, funksionet e kufizimit t\u00eb root-it jan\u00eb zhvilluar n\u00eb kontekstin e forcimit t\u00eb mbrojtjes s\u00eb ngarkes\u00ebs s\u00eb verifikuar dhe shp\u00ebrndarjet kan\u00eb p\u00ebrmendur mjaft koh\u00eb p\u00ebrdorimin e patch-eve t\u00eb jashtme p\u00ebr t'i bllokuar ato p\u00ebr t\u00eb shmangur UEFI Secure Boot. Megjithat\u00eb, k\u00ebto kufizime nuk jan\u00eb p\u00ebrfshir\u00eb n\u00eb b\u00ebrtham\u00ebn kryesore p\u00ebr shkak t\u00eb mosmarr\u00ebveshjeve<\/a><\/noindex> n\u00eb zbatimin e tyre dhe shqet\u00ebsime p\u00ebr shkeljen e funksionimit t\u00eb sistemeve ekzistuese. Moduli «lockdown» ka p\u00ebrfshir\u00eb patch-et e p\u00ebrdorura tashm\u00eb n\u00eb distribucione, t\u00eb cilat jan\u00eb rishikuar n\u00eb form\u00ebn e nj\u00eb n\u00ebn-sistemi t\u00eb ve\u00e7ant\u00eb, t\u00eb pa lidhur me UEFI Secure Boot. <\/p>\n

N\u00eb modin lockdown, \u00ebsht\u00eb i kufizuar aksesin n\u00eb \/dev\/mem, \/dev\/kmem, \/dev\/port, \/proc\/kcore, debugfs, modin e rregullimit kprobes, mmiotrace, tracefs, BPF, PCMCIA CIS (Struktura e Informacionit t\u00eb Kart\u00ebs), disa nd\u00ebrfaqe ACPI dhe regjistrat MSR t\u00eb CPU, bllokohen thirrjet kexec_file dhe kexec_load, ndalohet kalimi n\u00eb modalitetin gjum\u00eb, kufizohet p\u00ebrdorimi i DMA p\u00ebr pajisjet PCI, ndalohet importimi i kodit ACPI nga variablat EFI,
\nnuk lejohet manipulimi me portet e input\/output, p\u00ebrfshir\u00eb ndryshimin e numrit t\u00eb nd\u00ebrprer\u00ebsit dhe portit t\u00eb input\/output p\u00ebr portin seri. <\/p>\n

P\u00ebr default, moduli lockdown nuk \u00ebsht\u00eb aktiv, nd\u00ebrtohet duke specifikuar n\u00eb kconfig opsionin SECURITY_LOCKDOWN_LSM dhe aktivizohet p\u00ebrmes parametrave t\u00eb b\u00ebrtham\u00ebs «lockdown=», dosjes menaxhuese «\/sys\/kernel\/security\/lockdown» ose opsioneve t\u00eb nd\u00ebrtimit LOCK_DOWN_KERNEL_FORCE_*<\/a><\/noindex>, t\u00eb cilat mund t\u00eb marrin vlera «integrity» dhe «confidentiality». N\u00eb rastin e par\u00eb, bllokohen mund\u00ebsit\u00eb q\u00eb lejojn\u00eb ndryshimin e b\u00ebrtham\u00ebs n\u00eb pun\u00eb nga hap\u00ebsira e p\u00ebrdoruesit, nd\u00ebrsa n\u00eb rastin e dyt\u00eb, p\u00ebrve\u00e7 k\u00ebsaj, \u00e7aktivizohet funksionaliteti q\u00eb mund t\u00eb p\u00ebrdoret p\u00ebr t\u00eb nxjerr\u00eb informacion konfidencial nga b\u00ebrthama.<\/p>\n

\u00cbsht\u00eb e r\u00ebnd\u00ebsishme t\u00eb theksohet se lockdown thjesht kufizon mund\u00ebsit\u00eb standarde t\u00eb aksesit n\u00eb b\u00ebrtham\u00eb, por nuk mbron nga modifikimet q\u00eb rezultojn\u00eb nga shfryt\u00ebzimi i dob\u00ebsive. P\u00ebr t\u00eb bllokuar futjen e ndryshimeve n\u00eb b\u00ebrtham\u00ebn aktive n\u00eb aplikimin e eksploit\u00ebve, projekti Openwall po zhvillohet<\/a><\/noindex> modul i ve\u00e7ant\u00eb LKRG<\/a><\/noindex> (Linux Kernel Runtime Guard).<\/p>\n

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

Burimi: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041b\u0438\u043d\u0443\u0441 \u0422\u043e\u0440\u0432\u0430\u043b\u044c\u0434\u0441 \u043f\u0440\u0438\u043d\u044f\u043b \u0432 \u0441\u043e\u0441\u0442\u0430\u0432 \u0431\u0443\u0434\u0443\u0449\u0435\u0433\u043e \u0432\u044b\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux 5.4 \u043d\u0430\u0431\u043e\u0440 \u043f\u0430\u0442\u0447\u0435\u0439 «lockdown«, \u043f\u0440\u0435\u0434\u043b\u043e\u0436\u0435\u043d\u043d\u044b\u0439 \u0414\u044d\u0432\u0438\u0434\u043e\u043c \u0425\u043e\u0443\u044d\u043b\u043b\u0441\u043e\u043c (David Howells, \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 Red Hat) \u0438 \u041c\u044d\u0442\u044c\u044e \u0413\u0430\u0440\u0440\u0435\u0442\u043e\u043c (Matthew Garrett, \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0432 Google) \u0434\u043b\u044f \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0434\u043e\u0441\u0442\u0443\u043f\u0430 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f root \u043a \u044f\u0434\u0440\u0443. \u0421\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 «lockdown» \u0444\u0443\u043d\u043a\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c \u0432\u044b\u043d\u0435\u0441\u0435\u043d\u0430 \u0432 \u043e\u043f\u0446\u0438\u043e\u043d\u0430\u043b\u044c\u043d\u043e \u0437\u0430\u0433\u0440\u0443\u0436\u0430\u0435\u043c\u044b\u0439 LSM-\u043c\u043e\u0434\u0443\u043b\u044c (Linux Security Module), \u0443\u0441\u0442\u0430\u043d\u0430\u0432\u043b\u0438\u0432\u0430\u044e\u0449\u0438\u0439 \u0431\u0430\u0440\u044c\u0435\u0440 \u043c\u0435\u0436\u0434\u0443 UID 0 \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-38554","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\udd47Patch-et p\u00ebr kufizimin e aksesit root n\u00eb brend\u00ebsin\u00eb e b\u00ebrtham\u00ebs jan\u00eb pranuar n\u00eb b\u00ebrtham\u00ebn Linux 5.4 | ProHoster","description":"Linus Torvalds ka pranuar n\u00eb versionin e ardhsh\u00ebm t\u00eb b\u00ebrtham\u00ebs Linux 5.4 nj\u00eb grup patch-esh \"lockdown\", t\u00eb propozuar nga David Howells (punon n\u00eb Red Hat) dhe Matthew Garrett (punon n\u00eb Google) p\u00ebr t\u00eb kufizuar aksesin e p\u00ebrdoruesit root n\u00eb b\u00ebrtham\u00eb. Funksionaliteti i lidhur me \"lockdown\" \u00ebsht\u00eb \u00e7uar n\u00eb nj\u00eb modul LSM (Linux Security Module) q\u00eb vendos nj\u00eb barrier\u00eb midis UID 0 dhe","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/v-yadro-linux-5-4-prinyaty-patchi-dlya-ogranicheniya-dostupa-root-k-vnutrennostyam-yadra","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sq_AL","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\udd47\u0412 \u044f\u0434\u0440\u043e Linux 5.4 \u043f\u0440\u0438\u043d\u044f\u0442\u044b \u043f\u0430\u0442\u0447\u0438 \u0434\u043b\u044f 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