{"id":121973,"date":"2025-02-17T14:22:13","date_gmt":"2025-02-17T12:22:13","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-v-cpu-amd-pozvolyayushhie-vypolnit-kod-na-urovne-smm"},"modified":"2025-02-17T14:22:13","modified_gmt":"2025-02-17T12:22:13","slug":"uyazvimosti-v-cpu-amd-pozvolyayushhie-vypolnit-kod-na-urovne-smm","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/news\/uyazvimosti-v-cpu-amd-pozvolyayushhie-vypolnit-kod-na-urovne-smm","title":{"rendered":"Dobit\u00eb n\u00eb CPU-n\u00eb AMD q\u00eb lejojn\u00eb ekzekutimin e kodit n\u00eb nivel SMM","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Kompania AMD shpalli se ka hequr disa dob\u00ebsi n\u00eb procesor\u00ebt AMD EPYC dhe AMD Ryzen. Tre dob\u00ebsit\u00eb m\u00eb t\u00eb rrezikshme (CVE-2023-31342, CVE-2023-31343, CVE-2023-31345) potencialisht lejojn\u00eb ekzekutimin e kodit n\u00eb nivelin SMM (System Management Mode), q\u00eb ka nj\u00eb prioritet m\u00eb t\u00eb lart\u00eb se mjeti i hypervizorit dhe rrethi zero i mbrojtjes. Komprometimi i SMM lejon qasje t\u00eb pakufizuar n\u00eb t\u00eb gjith\u00eb memorien sistemike dhe mund t\u00eb p\u00ebrdoret p\u00ebr t\u00eb kontrolluar sistemin operativ. Dob\u00ebsit\u00eb jan\u00eb shkaktuar nga mungesa e verifikimit t\u00eb duhur t\u00eb t\u00eb dh\u00ebnave hyr\u00ebse n\u00eb trajtuesin e SMM, q\u00eb lejon nj\u00eb sulmues me privilegje t\u00eb rishkruaj\u00eb p\u00ebrmbajtjen e SMRAM. Detajet mbi metod\u00ebn e sulmit nuk jan\u00eb dh\u00ebn\u00eb ende.      <\/p>\n<p>Dob\u00ebsit\u00eb e tjera:  <\/p>\n<ul>\n<li class=\"l\"> CVE-2023-31352 \u2014 nj\u00eb gabim n\u00eb firmware-in e mekanizmit AMD SEV (Virtualizimi i Enkriptuar n\u00eb m\u00ebnyr\u00eb t\u00eb Sigurt), i p\u00ebrdorur n\u00eb sistemet e virtualizimit p\u00ebr mbrojtje. <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/vps\/\"   title=\"makinat virtuale\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"2136\">makinat virtuale<\/a> nga nd\u00ebrhyrja e hypervizorit ose administratori t\u00eb sistemit host. N\u00eb p\u00ebrputhje me dob\u00ebsin\u00eb e rregulluar n\u00eb fillim t\u00eb shkurtit, problemi lejon administratorin, q\u00eb ka akses n\u00eb ambientin e hostit, t\u00eb lexoj\u00eb p\u00ebrmbajtjen e pambrojtur t\u00eb memories, n\u00eb t\u00eb cil\u00ebn potencialisht mund t\u00eb ket\u00eb t\u00eb dh\u00ebna konfidenciale t\u00eb sistemit mik.\n<li class=\"l\"> CVE-2023-20582 \u2014 mund\u00ebsia p\u00ebr t\u00eb anashkaluar verifikimet RMP (Tabela e Hart\u00ebs Inverse) gjat\u00eb p\u00ebrdorimit t\u00eb zgjerimit SEV-SNP (P\u00ebrhapja e Sigurt e Faqeve t\u00eb N\u00ebnshkruara), e cila \u00ebsht\u00eb e destinuar p\u00ebr operim t\u00eb sigurt me tabela t\u00eb ngulitura t\u00eb faqesh t\u00eb memories. Nj\u00eb sulmues me t\u00eb drejta administratori mund t\u00eb krijoj\u00eb kushte p\u00ebr t\u00eb shkaktuar nj\u00eb p\u00ebrjashtim (fault) n\u00eb PTE (Hyrja e Tabel\u00ebs s\u00eb Faqeve) p\u00ebr t\u00eb anashkaluar mekanizmat e mbrojtjes s\u00eb integritetit t\u00eb memories s\u00eb makinave virtuale.\n<li class=\"l\"> CVE-2023-20581 \u2014 nj\u00eb gabim n\u00eb menaxhimin e aksesit n\u00eb IOMMU, i cili i lejon nj\u00eb sulmuesi me privilegje t\u00eb anashkaloj\u00eb kontrollin RMP dhe t\u00eb d\u00ebmtoj\u00eb integritetin e memories s\u00eb sistemit t\u00eb mysafir\u00ebve.  <\/ul>\n<p>Dob\u00ebsit\u00eb shfaqen n\u00eb gjenerat\u00ebn 3 dhe 4 t\u00eb procesor\u00ebve server AMD EPYC, n\u00eb CPU-t\u00eb e integruara t\u00eb serive AMD EPYC 7003 dhe 9004, n\u00eb AMD Ryzen Embedded R1000, R2000, 5000, 7000, V2000 dhe V3000, n\u00eb serit\u00eb desktop t\u00eb AMD Ryzen 3000, 4000, 5000, 7000 dhe 8000, si dhe n\u00eb serin\u00eb AMD Athlon 3000.<br \/>\n<br \/>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=62734\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f AMD \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438 \u0448\u0435\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 AMD EPYC \u0438 AMD Ryzen. \u0422\u0440\u0438 \u043d\u0430\u0438\u0431\u043e\u043b\u0435\u0435 \u043e\u043f\u0430\u0441\u043d\u044b\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 (CVE-2023-31342, CVE-2023-31343, CVE-2023-31345) \u043f\u043e\u0442\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0442 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u0441\u0432\u043e\u0439 \u043a\u043e\u0434 \u043d\u0430 \u0443\u0440\u043e\u0432\u043d\u0435 SMM (System Management Mode), \u0438\u043c\u0435\u044e\u0449\u0435\u043c \u0431\u043e\u043b\u0435\u0435 \u0432\u044b\u0441\u043e\u043a\u0438\u0439 \u043f\u0440\u0438\u043e\u0440\u0438\u0442\u0435\u0442, \u0447\u0435\u043c \u0440\u0435\u0436\u0438\u043c \u0433\u0438\u043f\u0435\u0440\u0432\u0438\u0437\u043e\u0440\u0430 \u0438 \u043d\u0443\u043b\u0435\u0432\u043e\u0435 \u043a\u043e\u043b\u044c\u0446\u043e \u0437\u0430\u0449\u0438\u0442\u044b. \u041a\u043e\u043c\u043f\u0440\u043e\u043c\u0435\u0442\u0430\u0446\u0438\u044f SMM \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u0435\u0442 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a\u043e \u0432\u0441\u0435\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u043c\u043e\u0436\u0435\u0442 [&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-121973","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u041a\u043e\u043c\u043f\u0430\u043d\u0438\u044f AMD \u043e\u0431\u044a\u044f\u0432\u0438\u043b\u0430 \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438 \u0448\u0435\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439 \u0432 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u0445 AMD EPYC \u0438 AMD Ryzen.\" \/>\n\t<meta name=\"robots\" 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