{"id":112965,"date":"2024-01-17T23:28:01","date_gmt":"2024-01-17T21:28:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/pixiefail-uyazvimosti-v-setevom-steke-proshivok-uefi-primenyaemom-dlya-pxe-zagruzki"},"modified":"2024-01-17T23:28:01","modified_gmt":"2024-01-17T21:28:01","slug":"pixiefail-uyazvimosti-v-setevom-steke-proshivok-uefi-primenyaemom-dlya-pxe-zagruzki","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/novosti-interneta\/pixiefail-uyazvimosti-v-setevom-steke-proshivok-uefi-primenyaemom-dlya-pxe-zagruzki","title":{"rendered":"PixieFAIL &#8212; UEFI p\u00fcsivara v\u00f5rgustiku pakettide haavatavused, mida kasutatakse PXE k\u00e4ivitamiseks","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>TianoCore EDK2 avatud platvormi UEFI p\u00fcsivara, mida kasutatakse tavaliselt serveri s\u00fcsteemides, on avastatud 9 haavatavust, mille kogum nimetus on PixieFAIL. Haavatavused on olemas p\u00fcsivara v\u00f5rgustiku pakettides, mida kasutatakse v\u00f5rguk\u00e4ivituse (PXE) korraldamiseks. K\u00f5ige ohtlikumad haavatavused v\u00f5imaldavad autendimata r\u00fcndajal korraldada kaugelt oma koodi t\u00e4itmist p\u00fcsivara tasemel s\u00fcsteemides, mis lubavad PXE-k\u00e4ivitust IPv6 v\u00f5rgu kaudu.     <\/p>\n<p>V\u00e4hem ohtlikud probleemid v\u00f5ivad viia teenuse kiire katkemiseni (k\u00e4ivituse blokeerimine), teabe lekkimiseni, DNS'i vahem\u00e4lu rikutuseni ja TCP seansside pealtkuulamiseni. Enamik haavatavusi on v\u00f5imalik \u00e4ra kasutada kohalikus v\u00f5rgus, kuid teatud haavatavused v\u00f5imaldavad ka r\u00fcnnakut v\u00e4lisest v\u00f5rgust. R\u00fcnnaku t\u00fc\u00fcpiline stsenaarium seisneb kohalikus v\u00f5rgus liikluse j\u00e4lgimises ja spetsiaalselt vormistatud paketide saatmises, kui tuvastatakse PXE k\u00e4ivitusega seotud tegevus. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-shicago\/\"   title=\"serverile\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2874\">serverile<\/a> Laadimine v\u00f5i DHCP-server ei ole vajalik. R\u00fcnnaku demonstreerimiseks on avaldatud eksploitide protot\u00fc\u00fcbid.       <\/p>\n<p>UEFI-firmware, mis p\u00f5hineb TianoCore EDK2 platvormil, kasutatakse paljudes suurtes ettev\u00f5tetes, pilveteenuse pakkujates, andmekeskustes ja arvutiklastrites. Eelk\u00f5ige on haavatav NetworkPkg moodul, mis rakendab PXE-laadimist, olemas ARM-i, Insyde Software'i (Insyde H20 UEFI BIOS), American Megatrend'i (AMI Aptio OpenEdition), Phoenix Technologies'i (SecureCore), Intel'i, Dell'i ja Microsoft'i (Project Mu) arendatud firmware'ides. Eeldati, et haavatavused m\u00f5jutavad ka ChromeOS platvormi, mille hoidlas on EDK2 pakett, kuid Google'i ettev\u00f5te kinnitas, et seda paketti ei kasutata Chromebookide firmware is ja ChromeOS platvorm ei ole probleemi all.        <\/p>\n<p>Tuvastatud haavatavused:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-45230 \u2014 DHCPv6 kliendi koodi puhver \u00fclevool, mis on \u00e4ra kasutatav liiga pika identifikaatori edastamise kaudu <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/et\/server\/dts-los-angeles\/\"   title=\"serverile\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"3612\">serverile<\/a> (Server ID valik).\n<li class=\"l\"> CVE-2023-45234 \u2014 puhver \u00fclevool DNS serveri parameetreid sisaldava valiku t\u00f6\u00f6tlemisel, mis edastatakse DHCPv6 serveri olemasolu kuulutava s\u00f5numi kaudu.\n<li class=\"l\"> CVE-2023-45235 \u2014 puhver \u00fclevool serveri identifikaatori (Server ID) valiku t\u00f6\u00f6tlemisel DHCPv6 vahe-serveri kuulutavate s\u00f5numite kaudu.\n<li class=\"l\"> CVE-2023-45229 \u2014 t\u00e4isarvu \u00fclevool allapoole (underflow), mis avaldub DHCPv6 s\u00f5numite IA_NA\/IA_TA valikute t\u00f6\u00f6tlemisel, mis kuulutavad DHCP-serverit.\n<li class=\"l\"> CVE-2023-45231 \u2014 andmeleke puhvrist v\u00e4ljaspool t\u00f6\u00f6tlemisel ND Redirect (Naaberavastus) s\u00f5numite, mis sisaldavad k\u00e4rbitud valikute v\u00e4\u00e4rtusi.\n<li class=\"l\"> CVE-2023-45232 \u2014 l\u00f5pmatu silmus tundmatute valikute t\u00f6\u00f6tlemisel sihtpunkti (Destination Options) parameetrite pealkirjas.\n<li class=\"l\"> CVE-2023-45233 \u2014 l\u00f5pmatu silmus PadN valiku t\u00f6\u00f6tlemisel paketi pealkirjas.\n<li class=\"l\"> CVE-2023-45236 \u2014 ennustatavate TCP j\u00e4rjestuse algnumbrite kasutamine, mis v\u00f5imaldab sekkuda TCP-\u00fchendusse.\n<li class=\"l\"> CVE-2023-45237 \u2014 usaldusv\u00e4\u00e4rse pseudojuhuslike numbrite generaatori kasutamine, mis annab ennustatavaid v\u00e4\u00e4rtusi.  <\/ul>\n<p>Haavatavusteave saadeti CERT\/CC-le 3. augustil 2023, katanud avalikustamise kuup\u00e4ev oli planeeritud 2. novembriks. Siiski, kuna oli vajalik koordineeritud parandusv\u00e4ljaanne paljude tootjate jaoks, l\u00fckati v\u00e4ljaandmise kuup\u00e4ev algselt 1. detsembrile, hiljem 12. detsembrile ja seej\u00e4rel 19. detsembrile 2023, kuid l\u00f5puks avaldati see 16. jaanuaril 2024. Sellega seoses palus Microsoft info avaldamist kuni maini edasi l\u00fckata.<br \/>\n<br \/>Allikas: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=60449\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b TianoCore EDK2, \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0438\u0445 \u0441\u043e\u0431\u0438\u0440\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f PixieFAIL. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0442 \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u043c \u0441\u0442\u0435\u043a\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 (PXE). \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0445 PXE-\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0441\u0435\u0442\u0438 IPv6. [&hellip;]<\/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-112965","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.0.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0412 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b TianoCore EDK2, \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0438\u0445 \u0441\u043e\u0431\u0438\u0440\u0430\u0442\u0435\u043b\u044c\u043d\u043e\u0435 \u043a\u043e\u0434\u043e\u0432\u043e\u0435 \u0438\u043c\u044f PixieFAIL. \u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u0440\u0438\u0441\u0443\u0442\u0441\u0442\u0432\u0443\u044e\u0442 \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u043c \u0441\u0442\u0435\u043a\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0435\u0442\u0435\u0432\u043e\u0439 \u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 (PXE). \u041d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0445 PXE-\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0441\u0435\u0442\u0438 IPv6.\" \/>\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\/et\/blog\/novosti-interneta\/pixiefail-uyazvimosti-v-setevom-steke-proshivok-uefi-primenyaemom-dlya-pxe-zagruzki\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"et_EE\" \/>\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\udd47PixieFAIL \u2014 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432 \u0441\u0435\u0442\u0435\u0432\u043e\u043c \u0441\u0442\u0435\u043a\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043e\u043a UEFI, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u043c \u0434\u043b\u044f PXE-\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0438 | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0412 UEFI-\u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0430\u0445 \u043d\u0430 \u043e\u0441\u043d\u043e\u0432\u0435 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b TianoCore EDK2, \u043e\u0431\u044b\u0447\u043d\u043e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u043c\u044b\u0445 \u043d\u0430 \u0441\u0435\u0440\u0432\u0435\u0440\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043f\u043e\u043b\u0443\u0447\u0438\u0432\u0448\u0438\u0445 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\u043d\u0435\u0430\u0443\u0442\u0435\u043d\u0442\u0438\u0444\u0438\u0446\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u043c\u0443 \u0430\u0442\u0430\u043a\u0443\u044e\u0449\u0435\u043c\u0443 \u043e\u0440\u0433\u0430\u043d\u0438\u0437\u043e\u0432\u0430\u0442\u044c \u0443\u0434\u0430\u043b\u0451\u043d\u043d\u043e\u0435 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u0435 \u0441\u0432\u043e\u0435\u0433\u043e \u043a\u043e\u0434\u0430 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 \u043f\u0440\u043e\u0448\u0438\u0432\u043a\u0438 \u0432 \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u0445, \u0434\u043e\u043f\u0443\u0441\u043a\u0430\u044e\u0449\u0438\u0445 PXE-\u0437\u0430\u0433\u0440\u0443\u0437\u043a\u0443 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0441\u0435\u0442\u0438 IPv6.\" \/>\n\t\t<meta property=\"og:url\" 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