{"id":113232,"date":"2024-01-29T18:50:31","date_gmt":"2024-01-29T16:50:31","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimost-v-ipv6-steke-yadra-linux-dopuskayushhaya-udalyonnoe-vypolnenie-koda"},"modified":"2024-01-29T18:50:31","modified_gmt":"2024-01-29T16:50:31","slug":"uyazvimost-v-ipv6-steke-yadra-linux-dopuskayushhaya-udalyonnoe-vypolnenie-koda","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/uyazvimost-v-ipv6-steke-yadra-linux-dopuskayushhaya-udalyonnoe-vypolnenie-koda","title":{"rendered":"Nj\u00eb vulnerabilitet n\u00eb pilafin IPv6 t\u00eb kernelit Linux q\u00eb lejon ekzekutimin e kodit nga distanca","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Informacioni p\u00ebr vulnerabilitetin CVE-2023-6200 \u00ebsht\u00eb zbuluar n\u00eb pilafin rrjetit t\u00eb kernelit Linux, i cili n\u00eb disa rrethana lejon nj\u00eb sulmues nga rrjeti lokal t\u00eb arrij\u00eb ekzekutimin e kodit t\u00eb tij p\u00ebrmes d\u00ebrgimit t\u00eb nj\u00eb pakete t\u00eb formatuar posa\u00e7\u00ebrisht ICMPv6 me nj\u00eb mesazh RA (Routers Advertisement), i dedikuar p\u00ebr t\u00eb shpallur informacion rreth routerit. <\/p>\n

Vulnerabiliteti mund t\u00eb eksploatohet vet\u00ebm nga rrjeti lokal dhe shfaqet n\u00eb sistemet q\u00eb kan\u00eb aktivizuar mb\u00ebshtetje p\u00ebr IPv6 dhe parametrin sysctl t\u00eb aktivizuar 'net.ipv6.conf..accept_ra' (mund t\u00eb kontrollohet me komand\u00ebn 'sysctl net.ipv6.conf | grep accept_ra'), i cili n\u00eb m\u00ebnyr\u00eb t\u00eb paracaktuar \u00ebsht\u00eb i \u00e7aktivizuar n\u00eb RHEL dhe Ubuntu p\u00ebr intervistat e rrjeteve t\u00eb jashtme, por \u00ebsht\u00eb i aktivizuar p\u00ebr interfacin loopback, \u00e7ka lejon nj\u00eb sulm nga i nj\u00ebjti sistem. <\/p>\n

Vulnerabiliteti shkaktohet nga nj\u00eb gjendje garash gjat\u00eb p\u00ebrpunimit nga mbledh\u00ebsi i plehrave t\u00eb sh\u00ebnimeve t\u00eb skaduara fib6_info, e cila mund t\u00eb \u00e7oj\u00eb n\u00eb nj\u00eb qasje n\u00eb nj\u00eb zon\u00eb t\u00ebrhequr tashm\u00eb nga memoria (use-after-free). Kur merr nj\u00eb paket\u00eb ICMPv6 me nj\u00eb mesazh reklamimi t\u00eb router-it (RA, Router Advertisement), steka rrjet\u00ebrore th\u00ebrret funksionin ndisc_router_discovery(), i cili, n\u00ebse ka t\u00eb dh\u00ebna n\u00eb mesazhin RA p\u00ebr koh\u00ebn e jet\u00ebs s\u00eb routes, th\u00ebrret funksionin fib6_set_expires() dhe plot\u00ebson struktur\u00ebn gc_link. P\u00ebr t\u00eb pastruar sh\u00ebnimet e skaduara p\u00ebrdoret funksioni fib6_clean_expires(), i cili shk\u00ebput sh\u00ebnimin n\u00eb gc_link dhe pastron memorien e p\u00ebrdorur nga struktura fib6_info. N\u00eb k\u00ebt\u00eb rast, ka nj\u00eb moment t\u00eb caktuar, kur memoria p\u00ebr struktur\u00ebn fib6_info \u00ebsht\u00eb tashm\u00eb pastruar, por lidhja me t\u00eb vazhdon t\u00eb ndodhet n\u00eb struktur\u00ebn gc_link. <\/p>\n

Vulnerabiliteti shfaqet duke filluar nga dega 6.6 dhe \u00ebsht\u00eb eliminuar n\u00eb versionet 6.6.9 dhe 6.7. Statusi i eliminuar t\u00eb vulnerabilitetit n\u00eb distribucione mund t\u00eb vler\u00ebsohet n\u00eb k\u00ebto faqe: Debian, Ubuntu, SUSE, RHEL, Fedora, Arch Linux, Gentoo, Slackware. Nga distribucionet q\u00eb ofrojn\u00eb paketa me b\u00ebrtham\u00ebn 6.6, mund t\u00eb p\u00ebrmendim Arch Linux, Gentoo, Fedora, Slackware, OpenMandriva dhe Manjaro, nd\u00ebrsa n\u00eb distribucionet e tjera nuk p\u00ebrjashtohet q\u00eb t\u00eb ket\u00eb ndryshime me gabim n\u00eb paketat me deg\u00eb m\u00eb t\u00eb vjetra t\u00eb b\u00ebrtham\u00ebs (p\u00ebr shembull, n\u00eb Debian p\u00ebrmendet se paketa me b\u00ebrtham\u00ebn 6.5.13 \u00ebsht\u00eb e prekshme, nd\u00ebrsa ndryshimi problematik u shfaq n\u00eb deg\u00ebn 6.6). Si nj\u00eb rrug\u00eb e p\u00ebrkohshme mbrojtjeje, mund t\u00eb \u00e7aktivizoni IPv6 ose t\u00eb caktoni vler\u00ebn 0 p\u00ebr parametrat 'net.ipv6.conf.*.accept_ra'.
\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-2023-6200) \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u043c \u0441\u0442\u0435\u043a\u0435 \u044f\u0434\u0440\u0430 Linux, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u043e\u0431\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0430\u0445 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u0438\u0437 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u0447\u0435\u0440\u0435\u0437 \u043e\u0442\u043f\u0440\u0430\u0432\u043a\u0443 \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043e\u0444\u043e\u0440\u043c\u043b\u0435\u043d\u043d\u043e\u0433\u043e \u043f\u0430\u043a\u0435\u0442\u0430 ICMPv6 \u0441 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u0435\u043c RA (Router Advertisement), \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u043c \u0434\u043b\u044f \u0430\u043d\u043e\u043d\u0441\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438 \u043e \u043c\u0430\u0440\u0448\u0440\u0443\u0442\u0438\u0437\u0430\u0442\u043e\u0440\u0435. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0430 \u0442\u043e\u043b\u044c\u043a\u043e \u0438\u0437 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u0438 \u043f\u0440\u043e\u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445 \u0441\u043e \u0432\u043a\u043b\u044e\u0447\u0451\u043d\u043d\u043e\u0439 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439 […]<\/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-113232","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\udd47Vulnerabiliteti n\u00eb stek\u00ebn IPv6 t\u00eb kernelit Linux, i cili lejon ekzekutimin e kodit n\u00eb distanc\u00eb | ProHoster","description":"Informacion mbi nj\u00eb vulnerabilitet CVE-2023-6200 n\u00eb stek\u00ebn rrjetore t\u00eb kernelit Linux, i cili n\u00eb disa rrethana lejon nj\u00eb sulmues nga rrjeti lokal t\u00eb arrij\u00eb ekzekutimin e kodit t\u00eb tij p\u00ebrmes d\u00ebrgimit t\u00eb nj\u00eb pakete t\u00eb ve\u00e7ant\u00eb ICMPv6 me nj\u00eb mesazh RA (Router Advertisement), e cila \u00ebsht\u00eb e destinuar p\u00ebr t\u00eb shpallur informacionin p\u00ebr ruterin. Vulnerabiliteti mund t\u00eb shfryt\u00ebzohet vet\u00ebm nga rrjeti lokal dhe shfaqet n\u00eb sisteme me mb\u00ebshtetje t\u00eb aktivizuar.","canonical_url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/uyazvimost-v-ipv6-steke-yadra-linux-dopuskayushhaya-udalyonnoe-vypolnenie-koda","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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 IPv6-\u0441\u0442\u0435\u043a\u0435 \u044f\u0434\u0440\u0430 Linux, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0430\u044f \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u043a\u043e\u0434\u0430 | ProHoster","og:description":"\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-2023-6200) \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u043c \u0441\u0442\u0435\u043a\u0435 \u044f\u0434\u0440\u0430 Linux, \u043a\u043e\u0442\u043e\u0440\u0430\u044f \u043f\u0440\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d\u043d\u044b\u0445 \u043e\u0431\u0441\u0442\u043e\u044f\u0442\u0435\u043b\u044c\u0441\u0442\u0432\u0430\u0445 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u0437\u043b\u043e\u0443\u043c\u044b\u0448\u043b\u0435\u043d\u043d\u0438\u043a\u0443 \u0438\u0437 \u043b\u043e\u043a\u0430\u043b\u044c\u043d\u043e\u0439 \u0441\u0435\u0442\u0438 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f 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\u043f\u043e\u0434\u0434\u0435\u0440\u0436\u043a\u043e\u0439","og:url":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/uyazvimost-v-ipv6-steke-yadra-linux-dopuskayushhaya-udalyonnoe-vypolnenie-koda","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":"2024-01-29T16:50:31+00:00","article:modified_time":"2024-01-29T16:50:31+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\/sq\/wp-json\/wp\/v2\/posts\/113232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/comments?post=113232"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/posts\/113232\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/media?parent=113232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/categories?post=113232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/sq\/wp-json\/wp\/v2\/tags?post=113232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}