{"id":90288,"date":"2020-07-30T13:42:19","date_gmt":"2020-07-30T11:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot"},"modified":"2020-07-30T13:42:19","modified_gmt":"2020-07-30T11:42:19","slug":"kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot","title":{"rendered":"Kritikus sebezhet\u0151s\u00e9g a GRUB2 bet\u00f6lt\u0151ben, amely lehet\u0151v\u00e9 teszi a UEFI Secure Boot megker\u00fcl\u00e9s\u00e9t","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>A GRUB2 bet\u00f6lt\u0151ben <noindex><a rel=\"nofollow\" href=\"https:\/\/www.openwall.com\/lists\/oss-security\/2020\/07\/29\/3\">felfedezve<\/a><\/noindex> 8 sebezhet\u0151s\u00e9g. A legvesz\u00e9lyesebb <noindex><a rel=\"nofollow\" href=\"https:\/\/kb.cert.org\/vuls\/id\/174059\">probl\u00e9ma<\/a><\/noindex> (<noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-10713\">CVE-2020-10713<\/a><\/noindex>), amelynek k\u00f3dneve BootHole, <noindex><a rel=\"nofollow\" href=\"https:\/\/eclypsium.com\/2020\/07\/29\/theres-a-hole-in-the-boot\/\">lehet\u0151v\u00e9 teszi<\/a><\/noindex> a UEFI Secure Boot mechanizmus\u00e1nak megker\u00fcl\u00e9s\u00e9t \u00e9s a nem hiteles\u00edtett k\u00e1rt\u00e9kony szoftver telep\u00edt\u00e9s\u00e9t. A sebezhet\u0151s\u00e9g saj\u00e1toss\u00e1ga, hogy a GRUB2 friss\u00edt\u00e9se \u00f6nmag\u00e1ban nem elegend\u0151 a megsz\u00fcntet\u00e9s\u00e9hez, mivel a t\u00e1mad\u00f3 egy r\u00e9gi, al\u00e1\u00edrt sebezhet\u0151 verzi\u00f3s ind\u00edt\u00f3 m\u00e9di\u00e1t haszn\u00e1lhat. A t\u00e1mad\u00f3 k\u00e9pes kompromitt\u00e1lni a hiteles\u00edt\u00e9si folyamatot nemcsak Linux, hanem m\u00e1s oper\u00e1ci\u00f3s rendszerek eset\u00e9ben is, bele\u00e9rtve <noindex><a rel=\"nofollow\" href=\"https:\/\/portal.msrc.microsoft.com\/en-US\/security-guidance\/advisory\/ADV200011\">Windows<\/a><\/noindex>. <\/p>\n<p>A probl\u00e9ma csak a <noindex><a rel=\"nofollow\" href=\"https:\/\/uefi.org\/revocationlistfile\">visszavont tan\u00fas\u00edtv\u00e1nyok list\u00e1j\u00e1nak<\/a><\/noindex> (dbx, UEFI Visszavon\u00e1si Lista) friss\u00edt\u00e9s\u00e9vel oldhat\u00f3 meg, de ebben az esetben elveszik a r\u00e9gi Linux telep\u00edt\u0151 m\u00e9di\u00e1k haszn\u00e1lat\u00e1nak lehet\u0151s\u00e9ge. N\u00e9h\u00e1ny hardvergy\u00e1rt\u00f3 m\u00e1r felvette a friss\u00edtett visszavont tan\u00fas\u00edtv\u00e1nyok list\u00e1j\u00e1t a firmware-j\u00e9be, ilyen rendszereken az UEFI Secure Boot \u00fczemm\u00f3dban csak a friss\u00edtett Linux disztrib\u00faci\u00f3k bet\u00f6lt\u00e9se lesz lehets\u00e9ges. <\/p>\n<p>A sebezhet\u0151s\u00e9g megsz\u00fcntet\u00e9s\u00e9hez a disztrib\u00faci\u00f3kban szint\u00e9n friss\u00edteni kell az install\u00e1l\u00f3kat, bet\u00f6lt\u0151ket, a kernel csomagokat, fwupd firmware-t \u00e9s a shim r\u00e9teget, \u00faj digit\u00e1lis al\u00e1\u00edr\u00e1sok gener\u00e1l\u00e1s\u00e1val. A felhaszn\u00e1l\u00f3knak friss\u00edteni\u00fck kell a telep\u00edt\u00e9si k\u00e9peket \u00e9s egy\u00e9b bet\u00f6lt\u0151 m\u00e9di\u00e1kat, valamint bet\u00f6lteni\u00fck kell a visszavont tan\u00fas\u00edtv\u00e1nyok list\u00e1j\u00e1t (dbx) az UEFI firmware-be. A dbx UEFI friss\u00edt\u00e9se el\u0151tt a rendszer sebezhet\u0151 marad, f\u00fcggetlen\u00fcl az OS friss\u00edt\u00e9seit\u0151l. <\/p>\n<p>S\u00e9r\u00fcl\u00e9kenys\u00e9g <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/security\/vulnerabilities\/grub2bootloader\">is caused by<\/a><\/noindex> t\u00f6bbpontos puffert\u00falt\u00f6lt\u00e9s, amelyet a bet\u00f6lt\u00e9si folyamat sor\u00e1n lehet kihaszn\u00e1lni tetsz\u0151leges k\u00f3d v\u00e9grehajt\u00e1s\u00e1ra.<br \/>\nA sebezhet\u0151s\u00e9g a grub.cfg konfigur\u00e1ci\u00f3s f\u00e1jl tartalm\u00e1nak elemz\u00e9sekor jelentkezik, amely \u00e1ltal\u00e1ban az ESP (EFI Rendszerpart\u00edci\u00f3) szakaszban tal\u00e1lhat\u00f3, \u00e9s a t\u00e1mad\u00f3, aki rendelkezik adminisztr\u00e1tori jogokkal, szerkesztheti an\u00e9lk\u00fcl, hogy megs\u00e9rten\u00e9 a shim \u00e9s a GRUB2 al\u00e1\u00edrt v\u00e9grehajthat\u00f3 f\u00e1jljainak integrit\u00e1s\u00e1t. A <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnu.org\/archive\/html\/grub-devel\/2020-07\/msg00019.html\">hiba<\/a><\/noindex> A konfigur\u00e1ci\u00f3s elemz\u0151 k\u00f3dj\u00e1ban a YY_FATAL_ERROR fat\u00e1lis hiba kezel\u0151je csak figyelmeztet\u00e9st adott ki, de nem z\u00e1rta le a programot. A sebezhet\u0151s\u00e9g kock\u00e1zata cs\u00f6kken, mivel sz\u00fcks\u00e9ges a rendszergazdai hozz\u00e1f\u00e9r\u00e9s, azonban a probl\u00e9ma el\u00e9rhet\u0151v\u00e9 v\u00e1lhat rejtett rootkitek bevezet\u00e9s\u00e9re, amennyiben fizikai hozz\u00e1f\u00e9r\u00e9s \u00e1ll rendelkez\u00e9sre az eszk\u00f6zh\u00f6z (ha lehet\u0151s\u00e9g van a saj\u00e1t adathordoz\u00f3r\u00f3l val\u00f3 bootol\u00e1sra).<\/p>\n<p>A legt\u00f6bb Linux disztrib\u00faci\u00f3ban a meger\u0151s\u00edtett ind\u00edt\u00e1shoz egy kicsi <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=36077\">shim r\u00e9teg<\/a><\/noindex>, amelyet a Microsoft digit\u00e1lis al\u00e1\u00edr\u00e1sa hiteles\u00edt. Ez a r\u00e9teg a GRUB2-t a saj\u00e1t tan\u00fas\u00edtv\u00e1ny\u00e1val hiteles\u00edti, ami lehet\u0151v\u00e9 teszi a disztrib\u00faci\u00f3k fejleszt\u0151i sz\u00e1m\u00e1ra, hogy ne kelljen minden egyes kernel \u00e9s GRUB friss\u00edt\u00e9st a Microsoftban hiteles\u00edteni. A sebezhet\u0151s\u00e9g lehet\u0151v\u00e9 teszi, hogy a grub.cfg tartalm\u00e1nak m\u00f3dos\u00edt\u00e1s\u00e1val saj\u00e1t k\u00f3dunk fut\u00e1sa \u00e9rhet\u0151 el a shim sikeres hiteles\u00edt\u00e9se ut\u00e1n, de a oper\u00e1ci\u00f3s rendszer bet\u00f6lt\u00e9se el\u0151tt, beleavatkozva a bizalmi l\u00e1ncba, akt\u00edv Secure Boot \u00fczemm\u00f3dban, \u00edgy teljes ellen\u0151rz\u00e9st biztos\u00edtva a tov\u00e1bbi bet\u00f6lt\u00e9si folyamat felett, bele\u00e9rtve a m\u00e1sik oper\u00e1ci\u00f3s rendszer bet\u00f6lt\u00e9s\u00e9t, az oper\u00e1ci\u00f3s rendszer \u00f6sszetev\u0151inek m\u00f3dos\u00edt\u00e1s\u00e1t \u00e9s a v\u00e9delem megker\u00fcl\u00e9s\u00e9t. <noindex><a rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=51591\">Lockdown<\/a><\/noindex>. <\/p>\n<p><center><noindex><a rel=\"nofollow\" href=\"https:\/\/lh6.googleusercontent.com\/EWWksJQKlwJyur1cBV5lCanfbF5m36DxRDQs8Ax6K9jn0Au5yWdmK5tQAtULQm-qQw9zOafCD1Pvny5vMJWdbhTr4FV9Qlnk_FQpXI6GbeiuKOjJ5uFMy9pnasLRsfR-Ll58p2Gr\"><img decoding=\"async\" alt=\"Kritikus sebezhet\u0151s\u00e9g a GRUB2 bet\u00f6lt\u0151ben, amely lehet\u0151v\u00e9 teszi a UEFI Secure Boot megker\u00fcl\u00e9s\u00e9t\" src=\"\/wp-content\/uploads\/2020\/07\/d8def940f6d08206bdf1261d57288fba.jpeg\" style=\"display:block;margin: 0 auto;\" \/><\/a><\/noindex><\/center><\/p>\n<p>Tov\u00e1bbi sebezhet\u0151s\u00e9gek a GRUB2-ben:<\/p>\n<ul>\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14308\">CVE-2020-14308<\/a><\/noindex> \u2014 puffer t\u00falcsordul\u00e1s a mem\u00f3riater\u00fclet m\u00e9ret\u00e9nek ellen\u0151rz\u00e9s\u00e9nek hi\u00e1nya miatt a grub_malloc-ban;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14309\">CVE-2020-14309<\/a><\/noindex> \u2014 eg\u00e9sz sz\u00e1m t\u00falcsordul\u00e1s a grub_squash_read_symlink-ben, amely adatokat \u00edrhat a lefoglalt puffer hat\u00e1rain t\u00falra;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14310\">CVE-2020-14310<\/a><\/noindex> \u2014 eg\u00e9sz sz\u00e1m t\u00falcsordul\u00e1s a read_section_from_string-ben, amely adatokat \u00edrhat a lefoglalt puffer hat\u00e1rain t\u00falra;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-14311\">CVE-2020-14311<\/a><\/noindex> \u2014 eg\u00e9sz sz\u00e1m t\u00falcsordul\u00e1s a grub_ext2_read_link-ben, amely adatokat \u00edrhat a lefoglalt puffer hat\u00e1rain t\u00falra;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-15705\">CVE-2020-15705<\/a><\/noindex> \u2014 lehet\u0151v\u00e9 teszi a nem al\u00e1\u00edrt kernelok bet\u00f6lt\u00e9s\u00e9t k\u00f6zvetlen ind\u00edt\u00e1s eset\u00e9n Secure Boot m\u00f3dban shim r\u00e9teg n\u00e9lk\u00fcl;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-15706\">CVE-2020-15706<\/a><\/noindex> \u2014 m\u00e1r felszabad\u00edtott mem\u00f3riater\u00fclet el\u00e9r\u00e9se (use-after-free) a fut\u00e1s k\u00f6zbeni f\u00fcggv\u00e9ny fel\u00fcl\u00edr\u00e1sakor;\n<li class=\"l\"> <noindex><a rel=\"nofollow\" href=\"https:\/\/security-tracker.debian.org\/tracker\/CVE-2020-15707\">CVE-2020-15707<\/a><\/noindex> \u2014 eg\u00e9sz sz\u00e1m t\u00falcsordul\u00e1s az initrd m\u00e9ret\u00e9nek kezel\u0151j\u00e9ben.\n<\/ul>\n<p>A jav\u00edt\u00f3csomagok friss\u00edt\u00e9seit kiadt\u00e1k a <noindex><a rel=\"nofollow\" href=\"https:\/\/www.debian.org\/security\/2020-GRUB-UEFI-SecureBoot\/#package_updates\">Debian<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/ubuntu.com\/\/blog\/mitigating-boothole-theres-a-hole-in-the-boot-cve-2020-10713-and-related-vulnerabilities\">Ubuntu<\/a><\/noindex>, <noindex><a rel=\"nofollow\" href=\"https:\/\/access.redhat.com\/security\/cve\/cve-2020-10713\">RHEL<\/a><\/noindex> \u00e9s <noindex><a rel=\"nofollow\" href=\"https:\/\/www.suse.com\/c\/suse-addresses-grub2-secure-boot-issue\/\">SUSE<\/a><\/noindex>. A GRUB2-nek <noindex><a rel=\"nofollow\" href=\"https:\/\/lists.gnu.org\/archive\/html\/grub-devel\/2020-07\/msg00034.html\">aj\u00e1nlott<\/a><\/noindex> patch k\u00e9szlet.<\/p>\n<p><noindex><a rel=\"nofollow\" name=\"link\"><\/a><\/noindex><\/p>\n<p>Forr\u00e1s: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=53454\">opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 8 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u0430\u044f \u043f\u0440\u043e\u0431\u043b\u0435\u043c\u0430 (CVE-2020-10713), \u043a\u043e\u0442\u043e\u0440\u043e\u0439 \u043f\u0440\u0438\u0441\u0432\u043e\u0435\u043d\u043e \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f BootHole, \u0434\u0430\u0451\u0442 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u043e\u0431\u043e\u0439\u0442\u0438 \u043c\u0435\u0445\u0430\u043d\u0438\u0437\u043c UEFI Secure Boot \u0438 \u0434\u043e\u0431\u0438\u0442\u044c\u0441\u044f \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u043a\u0438 \u043d\u0435\u0432\u0435\u0440\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0433\u043e \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u043e\u0433\u043e \u041f\u041e. \u041e\u0441\u043e\u0431\u0435\u043d\u043d\u043e\u0441\u0442\u044c\u044e \u0434\u0430\u043d\u043d\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0442\u043e, \u0447\u0442\u043e \u0434\u043b\u044f \u0435\u0451 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f \u043d\u0435 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u043e\u0431\u043d\u043e\u0432\u0438\u0442\u044c GRUB2, \u0442\u0430\u043a \u043a\u0430\u043a \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0438\u0439 \u043c\u043e\u0436\u0435\u0442 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0437\u0430\u0433\u0440\u0443\u0437\u043e\u0447\u043d\u044b\u0439 \u043d\u043e\u0441\u0438\u0442\u0435\u043b\u044c \u0441\u043e \u0441\u0442\u0430\u0440\u043e\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0439 \u0432\u0435\u0440\u0441\u0438\u0435\u0439, \u0437\u0430\u0432\u0435\u0440\u0435\u043d\u043d\u043e\u0439 \u0446\u0438\u0444\u0440\u043e\u0432\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u044c\u044e. [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":90289,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-90288","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 8 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439.\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Yuri Gagarin\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot\" \/>\n\t\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.3\" \/>\n\t\t<meta property=\"og:locale\" content=\"hu_HU\" \/>\n\t\t<meta property=\"og:site_name\" content=\"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\" \/>\n\t\t<meta property=\"og:type\" content=\"article\" \/>\n\t\t<meta property=\"og:title\" content=\"\ud83e\udd47\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0431\u043e\u0439\u0442\u0438 UEFI Secure Boot | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 8 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439.\" \/>\n\t\t<meta property=\"og:url\" content=\"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot\" \/>\n\t\t<meta property=\"og:image\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:secure_url\" content=\"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg\" \/>\n\t\t<meta property=\"og:image:width\" content=\"350\" \/>\n\t\t<meta property=\"og:image:height\" content=\"350\" \/>\n\t\t<meta property=\"article:published_time\" content=\"2020-07-30T11:42:19+00:00\" \/>\n\t\t<meta property=\"article:modified_time\" content=\"2020-07-30T11:42:19+00:00\" \/>\n\t\t<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<meta property=\"article:author\" content=\"https:\/\/www.facebook.com\/prohoster\" \/>\n\t\t<!-- All in One SEO -->\n\n","aioseo_head_json":{"title":"\ud83e\udd47Kritikus sebezhet\u0151s\u00e9g a GRUB2 bootloader-ben, amely lehet\u0151v\u00e9 teszi az UEFI Secure Boot megker\u00fcl\u00e9s\u00e9t | ProHoster","description":"A GRUB2 bootloader-ben 8 sebezhet\u0151s\u00e9get azonos\u00edtottak.","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","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\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0430\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043e\u0431\u043e\u0439\u0442\u0438 UEFI Secure Boot | ProHoster","og:description":"\u0412 \u0437\u0430\u0433\u0440\u0443\u0437\u0447\u0438\u043a\u0435 GRUB2 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 8 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439.","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/kriticheskaya-uyazvimost-v-zagruzchike-grub2-pozvolyayushhaya-obojti-uefi-secure-boot","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":"2020-07-30T11:42:19+00:00","article:modified_time":"2020-07-30T11:42:19+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":{"post_id":"90288","title":null,"description":null,"keywords":null,"keyphrases":null,"primary_term":null,"canonical_url":null,"og_title":null,"og_description":null,"og_object_type":"default","og_image_type":"default","og_image_url":null,"og_image_width":null,"og_image_height":null,"og_image_custom_url":null,"og_image_custom_fields":null,"og_video":null,"og_custom_url":null,"og_article_section":null,"og_article_tags":null,"twitter_use_og":false,"twitter_card":"default","twitter_image_type":"default","twitter_image_url":null,"twitter_image_custom_url":null,"twitter_image_custom_fields":null,"twitter_title":null,"twitter_description":null,"schema":{"blockGraphs":[],"customGraphs":[],"default":{"data":{"Article":[],"Course":[],"Dataset":[],"FAQPage":[],"Movie":[],"Person":[],"Product":[],"ProductReview":[],"Car":[],"Recipe":[],"Service":[],"SoftwareApplication":[],"WebPage":[]},"graphName":"","isEnabled":true},"graphs":[]},"schema_type":null,"schema_type_options":null,"pillar_content":false,"robots_default":true,"robots_noindex":false,"robots_noarchive":false,"robots_nosnippet":false,"robots_nofollow":false,"robots_noimageindex":false,"robots_noodp":false,"robots_notranslate":false,"robots_max_snippet":null,"robots_max_videopreview":null,"robots_max_imagepreview":"large","priority":null,"frequency":null,"local_seo":null,"seo_analyzer_scan_date":null,"breadcrumb_settings":null,"limit_modified_date":false,"reviewed_by":null,"ai":null,"created":"2021-02-28 12:54:27","updated":"2022-09-27 23:35:06","focus_keyword":null,"additional_keywords":null,"truseo_locale":null},"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/90288","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=90288"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/90288\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media\/90289"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=90288"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=90288"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=90288"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}