{"id":110711,"date":"2023-10-10T03:10:26","date_gmt":"2023-10-10T01:10:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/ubuntu-ogranichit-dostup-k-user-namespace"},"modified":"2023-10-10T03:10:26","modified_gmt":"2023-10-10T01:10:26","slug":"ubuntu-ogranichit-dostup-k-user-namespace","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/ubuntu-ogranichit-dostup-k-user-namespace","title":{"rendered":"Ubuntu piirab juurdep\u00e4\u00e4su kasutaja nimede ruumile","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Canonical on kuulutanud v\u00e4lja muudatused Ubuntu 23.10, mis piiravad kasutajate juurdep\u00e4\u00e4su kasutaja nimiruumi (user namespace), et t\u00f5sta konteinerite isoleerimisega s\u00fcsteemide turvalisust haavatavuste vastu, milleks on vajalikud manipulatsioonid user namespace'iga. Google'i andmetel vajab 44% Linuxi tuuma haavatavuste auhinnaprogrammi kuuluvast eksploitist v\u00f5imalust luua kasutaja nimiruume. <\/p>\n

Ubuntu-s on t\u00e4ielik juurdep\u00e4\u00e4s user namespace blokeerimise asemel kasutatud h\u00fcbriidskeemi, mis v\u00f5imaldab valikuliselt m\u00f5nel programmil user namespace'i luua, kui on olemas AppArmori profiil, millel on reegel «allow userns create» v\u00f5i \u00f5igused CAP_SYS_ADMIN. N\u00e4iteks on Chrome'i jaoks loodud profiil \/etc\/apparmor.d\/opt.google.chrome.chrome, mida saab kasutada n\u00e4itena user namespace'i juurdep\u00e4\u00e4su avamiseks teistele programmidele. <\/p>\n

Ubuntu 23.10 j\u00e4rgmises versioonis plaanitakse user namespace'i juurdep\u00e4\u00e4su piirangut pakkuda valikuna, mis ei ole vaikimisi aktiivne. M\u00f5ne n\u00e4dala jooksul p\u00e4rast Ubuntu 23.10 v\u00e4ljaandmist koguvad arendajad teavet juurdep\u00e4\u00e4su piiramise v\u00f5imaliku negatiivse m\u00f5ju kohta paketide t\u00f6\u00f6le ja valmistavad ette vastavad AppArmori profiilid. Seej\u00e4rel aktiveeritakse piirang vaikimisi \u00fche tuuma (Stable Release Updates) parandava v\u00e4rskendusega. <\/p>\n

Enne piirangute varajast aktiveerimist saab kasutada j\u00e4rgmisi k\u00e4ske: sudo sysctl -w kernel.apparmor_restrict_unprivileged_unconfined=1 sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=1 <\/p>\n

Ja nende deaktiveerimiseks: sudo sysctl -w kernel.apparmor_restrict_unprivileged_unconfined=0 sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043d\u0435\u0441\u0435\u043d\u0438\u0438 \u0432 Ubuntu 23.10 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u043e\u0441\u0442\u0443\u043f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043a \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430\u043c \u0438\u043c\u0451\u043d \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u0432 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f (user namespace), \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0441\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043d\u0443\u044e \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e, \u043e\u0442 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0434\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441 user namespace. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c Google, 44% \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442\u043e\u0432, \u0443\u0447\u0430\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435 \u043f\u043e \u0432\u044b\u043f\u043b\u0430\u0442\u0435 \u0434\u0435\u043d\u0435\u0436\u043d\u044b\u0445 \u0432\u043e\u0437\u043d\u0430\u0433\u0440\u0430\u0436\u0434\u0435\u043d\u0438\u0439 \u0437\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u044f\u0434\u0440\u0435 Linux, […]<\/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-110711","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\udd47Ubuntu piirab juurdep\u00e4\u00e4su user namespace'ile | ProHoster","description":"Canonical on kuulutanud v\u00e4lja muudatused Ubuntu 23.10, mis piiravad kasutajate juurdep\u00e4\u00e4su kasutaja nimiruumi (user namespace), et t\u00f5sta konteinerite isoleerimisega s\u00fcsteemide turvalisust haavatavuste vastu, milleks on vajalikud manipulatsioonid user namespace'iga. Google'i andmetel vajab 44% Linuxi tuuma haavatavuste auhinnaprogrammi kuuluvast eksploitist.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/ubuntu-ogranichit-dostup-k-user-namespace","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","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\udd47Ubuntu \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0442 \u0434\u043e\u0441\u0442\u0443\u043f \u043a user namespace | ProHoster","og:description":"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f Canonical \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e \u0432\u043d\u0435\u0441\u0435\u043d\u0438\u0438 \u0432 Ubuntu 23.10 \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u0439, \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0438\u0432\u0430\u044e\u0449\u0438\u0445 \u0434\u043e\u0441\u0442\u0443\u043f \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u043a \u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u0441\u0442\u0432\u0430\u043c \u0438\u043c\u0451\u043d \u0438\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u043e\u0432 \u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u0435\u043b\u044f (user namespace), \u0447\u0442\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442 \u043f\u043e\u0432\u044b\u0441\u0438\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0451\u043d\u043d\u043e\u0441\u0442\u044c \u0441\u0438\u0441\u0442\u0435\u043c, \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u044e\u0449\u0438\u0445 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u043d\u0443\u044e \u0438\u0437\u043e\u043b\u044f\u0446\u0438\u044e, \u043e\u0442 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u0434\u043b\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u043a\u043e\u0442\u043e\u0440\u044b\u0445 \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u044b \u043c\u0430\u043d\u0438\u043f\u0443\u043b\u044f\u0446\u0438\u0438 \u0441 user namespace. \u041f\u043e \u0434\u0430\u043d\u043d\u044b\u043c Google, 44% \u044d\u043a\u0441\u043f\u043b\u043e\u0438\u0442\u043e\u0432, \u0443\u0447\u0430\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0445 \u0432 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u0435 \u043f\u043e \u0432\u044b\u043f\u043b\u0430\u0442\u0435 \u0434\u0435\u043d\u0435\u0436\u043d\u044b\u0445 \u0432\u043e\u0437\u043d\u0430\u0433\u0440\u0430\u0436\u0434\u0435\u043d\u0438\u0439 \u0437\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u044f\u0434\u0440\u0435 Linux,","og:url":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/ubuntu-ogranichit-dostup-k-user-namespace","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2023-10-10T01:10:26+00:00","article:modified_time":"2023-10-10T01:10:26+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/110711","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/comments?post=110711"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/posts\/110711\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/media?parent=110711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/categories?post=110711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/et\/wp-json\/wp\/v2\/tags?post=110711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}