N\u00eb konferenc\u00ebn 38C3 u paraqit kuadri FlippyRAM, i destinuar p\u00ebr verifikimin e pranis\u00eb s\u00eb dob\u00ebsive q\u00eb lejojn\u00eb sulme t\u00eb tipit Rowhammer p\u00ebr t\u00eb ndryshuar p\u00ebrmbajtjen e memories RAM. Kodi i mjeteve \u00ebsht\u00eb shkruar n\u00eb C++ dhe shp\u00ebrndahet n\u00ebn licenc\u00ebn MIT. P\u00ebr t\u00eb thjeshtuar testimin, \u00ebsht\u00eb formuar nj\u00eb distribucion live i gatsh\u00ebm (1 GB), q\u00eb lejon testimin duke u ngarkuar nga USB Flash, si dhe nj\u00eb imazh kontejneri p\u00ebr Docker. <\/p>\n
Q\u00ebllimi i projektit \u00ebsht\u00eb t\u00eb angazhoj\u00eb p\u00ebrdoruesit n\u00eb pjes\u00ebmarrjen n\u00eb nj\u00eb k\u00ebrkimin q\u00eb p\u00ebrpiqet t\u00eb mbledh\u00eb statistika mbi sa shpesh dob\u00ebsit\u00eb e tipit Rowhammer shfaqen n\u00eb sistemet q\u00eb jan\u00eb n\u00eb p\u00ebrdorim. T\u00eb dh\u00ebnat nga testimi mund t\u00eb d\u00ebrgohen si nga distribuicioni i ngarkuar, ashtu edhe t\u00eb shtohen manualisht n\u00eb faqen e k\u00ebrkimit. <\/p>\n
Metoda e sulmit Rowhammer u propozua 10 vjet m\u00eb par\u00eb, pas s\u00eb cil\u00ebs filloi nj\u00eb loj\u00eb \"mace dhe miu\" midis hulumtuesve t\u00eb siguris\u00eb dhe prodhuesve t\u00eb pajisjeve - prodhuesit e \u00e7ipave t\u00eb memories p\u00ebrpiqeshin t\u00eb bllokonin vulnerabilitetin, nd\u00ebrsa hulumtuesit gjenin m\u00ebnyra t\u00eb reja p\u00ebr ta anashkaluar at\u00eb. P\u00ebrve\u00e7 \u00e7ipave DDR3 n\u00eb sistemet Intel x86, u identifikuan metoda sulmi ndaj \u00e7ipave DDR4 dhe DDR5, sistemeve me procesor\u00eb AMD dhe ARM, variante anashkalimi t\u00eb korrigjimit t\u00eb gabimeve ECC, m\u00ebnyra p\u00ebr t\u00eb kryer sulme p\u00ebrmes rrjetit dhe p\u00ebrmes ekzekutimit t\u00eb kodit JavaScript n\u00eb shfletues. <\/p>\n
Sulmi RowHammer lejon t'i jap\u00ebsh nj\u00eb efekte t\u00eb deformuara p\u00ebrmbajtjes s\u00eb bit\u00ebve t\u00eb ve\u00e7ant\u00eb t\u00eb memories DRAM p\u00ebrmes leximit ciklik t\u00eb t\u00eb dh\u00ebnave nga qelizat p\u00ebrreth. Duke qen\u00eb se memoria DRAM p\u00ebrb\u00ebn nj\u00eb matric\u00eb dy-dimensionale t\u00eb qelizave, secila prej t\u00eb cilave p\u00ebrb\u00ebhet nga nj\u00eb kondensator dhe nj\u00eb transistor, kryerja e leximeve t\u00eb vazhdueshme n\u00eb t\u00eb nj\u00ebjt\u00ebn zon\u00eb t\u00eb memories \u00e7on n\u00eb luhatje t\u00eb tensionit dhe anomali q\u00eb shkaktojn\u00eb nj\u00eb humbje t\u00eb vog\u00ebl t\u00eb ngarkes\u00ebs nga qelizat p\u00ebrreth. N\u00ebse intensiteti i leximit \u00ebsht\u00eb i lart\u00eb, at\u00ebher\u00eb qeliza p\u00ebrreth mund t\u00eb humbas\u00eb nj\u00eb sasi t\u00eb konsiderueshme ngarkese dhe cikli i ardhsh\u00ebm i rikuperimit nuk ka koh\u00eb t\u00eb rikthej\u00eb at\u00eb n\u00eb gjendjen origjinale, \u00e7ka \u00e7on n\u00eb ndryshimin e vler\u00ebs s\u00eb t\u00eb dh\u00ebnave t\u00eb ruajtura n\u00eb qeliza. P\u00ebr t\u00eb mbrojtur nga RowHammer, prodhuesit e \u00e7ipave kan\u00eb shtuar mekanizmin TRR (Target Row Refresh), i cili bllokon deformimin e qelizave n\u00eb raste t\u00eb ve\u00e7anta, por nuk mbron nga t\u00eb gjitha skemat e mundshme t\u00eb sulmit. \u041d\u0430 \u043a\u043e\u043d\u0444\u0435\u0440\u0435\u043d\u0446\u0438\u0438 38C3 \u043f\u0440\u0435\u0434\u0441\u0442\u0430\u0432\u043b\u0435\u043d \u0444\u0440\u0435\u0439\u043c\u0432\u043e\u0440\u043a FlippyRAM, \u043f\u0440\u0435\u0434\u043d\u0430\u0437\u043d\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u0434\u043b\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043d\u0430\u043b\u0438\u0447\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0445 \u0441\u043e\u0432\u0435\u0440\u0448\u0438\u0442\u044c \u0430\u0442\u0430\u043a\u0438 \u043a\u043b\u0430\u0441\u0441\u0430 Rowhammer \u0434\u043b\u044f \u0438\u0437\u043c\u0435\u043d\u0435\u043d\u0438\u044f \u0441\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0433\u043e \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438. \u041a\u043e\u0434 \u0438\u043d\u0441\u0442\u0440\u0443\u043c\u0435\u043d\u0442\u0430\u0440\u0438\u044f \u043d\u0430\u043f\u0438\u0441\u0430\u043d \u043d\u0430 \u0421++ \u0438 \u0440\u0430\u0441\u043f\u0440\u043e\u0441\u0442\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0414\u043b\u044f \u0443\u043f\u0440\u043e\u0449\u0435\u043d\u0438\u044f \u0442\u0435\u0441\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u044f \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d \u0433\u043e\u0442\u043e\u0432\u044b\u0439 live-\u0434\u0438\u0441\u0442\u0440\u0438\u0431\u0443\u0442\u0438\u0432 (1 \u0413\u0411), \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0438\u0439 \u043f\u0440\u043e\u0432\u0435\u0441\u0442\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0443, \u0437\u0430\u0433\u0440\u0443\u0437\u0438\u0432\u0448\u0438\u0441\u044c \u0441 USB Flash, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043e\u0431\u0440\u0430\u0437 \u043a\u043e\u043d\u0442\u0435\u0439\u043d\u0435\u0440\u0430 \u0434\u043b\u044f Docker. \u0426\u0435\u043b\u044c\u044e \u043f\u0440\u043e\u0435\u043a\u0442\u0430 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f […]<\/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-121204","post","type-post","status-publish","format-standard","hentry","category-news"],"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\udd47FlippyRAM \u2014 nj\u00eb distribucion p\u00ebr testimin e sulmit Rowhammer | ProHoster","description":"N\u00eb konferenc\u00ebn 38C3 u paraqit kuadri FlippyRAM, i destinuar p\u00ebr t\u00eb kontrolluar ekzistenc\u00ebn e cenueshm\u00ebrive q\u00eb lejojn\u00eb sulmet e klas\u00ebs Rowhammer p\u00ebr t\u00eb ndryshuar p\u00ebrmbajtjen e memories 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Burimi: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"