{"id":99712,"date":"2021-04-13T16:22:45","date_gmt":"2021-04-13T14:22:45","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/uyazvimosti-vo-freebsd-ipnet-i-nucleus-net-svyazannye-s-oshibkami-pri-realizaczii-szhatiya-v-dns"},"modified":"2021-04-13T16:22:45","modified_gmt":"2021-04-13T14:22:45","slug":"uyazvimosti-vo-freebsd-ipnet-i-nucleus-net-svyazannye-s-oshibkami-pri-realizaczii-szhatiya-v-dns","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sq\/blog\/novosti-interneta\/uyazvimosti-vo-freebsd-ipnet-i-nucleus-net-svyazannye-s-oshibkami-pri-realizaczii-szhatiya-v-dns","title":{"rendered":"Vulnerabilitatet n\u00eb FreeBSD, IPnet dhe Nucleus NET, t\u00eb lidhura me gabimet n\u00eb zbatimin e kompresimit n\u00eb DNS","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Grupet k\u00ebrkimore Forescout Research Labs dhe JSOF Research publikuan rezultatet e nj\u00eb studimi t\u00eb p\u00ebrbashk\u00ebt t\u00eb siguris\u00eb p\u00ebr realizime t\u00eb ndryshme t\u00eb skemave t\u00eb kompresimit, t\u00eb p\u00ebrdorura p\u00ebr paketimin e emrave t\u00eb p\u00ebrs\u00ebritur n\u00eb mesazhet DNS, mDNS, DHCP dhe IPv6 RA (paketimi i pjes\u00ebve t\u00eb dyfishta t\u00eb domain-eve n\u00eb mesazhe q\u00eb p\u00ebrfshijn\u00eb disa emra). Gjat\u00eb pun\u00ebs s\u00eb kryer, u zbuluan 9 vulnerabilitete, t\u00eb cilat jan\u00eb p\u00ebrmbledhur n\u00ebn emrin kod NAME:WRECK.     <\/p>\n<p>Problemet jan\u00eb identifikuar n\u00eb FreeBSD, si dhe n\u00eb n\u00ebndeg\u00ebt rrjet\u00ebrore IPnet, Nucleus NET dhe NetX, t\u00eb cilat jan\u00eb shp\u00ebrndar\u00eb n\u00eb sistemet operative n\u00eb koh\u00eb reale VxWorks, Nucleus dhe ThreadX, t\u00eb p\u00ebrdorura n\u00eb pajisjet e automatizimit, magazinat, pajisjet mjek\u00ebsore, avionik\u00ebn, printerat dhe elektronik\u00ebn e konsumit. Mendohet se vulnerabilitetet prekin t\u00eb pakt\u00ebn 100 milion pajisje.      <\/p>\n<ul>\n<li class=\"l\"> Nj\u00eb vulnerabilitet n\u00eb FreeBSD (CVE-2020-7461) lejonte ekzekutimin e kodit t\u00eb tij p\u00ebrmes d\u00ebrgimit t\u00eb nj\u00eb paketi DHCP t\u00eb dizajnuar me kujdes nga nj\u00eb sulmues q\u00eb ndodhej n\u00eb t\u00eb nj\u00ebjt\u00ebn rrjet lokale me viktim\u00ebn, p\u00ebrpunimi i t\u00eb cilit nga klienti DHCP t\u00eb ndjesh\u00ebm rezultonte n\u00eb tejkalimin e buffers. Problemi leht\u00ebsohej nga fakti q\u00eb procesi dhclient, n\u00eb t\u00eb cilin ndodhej vulnerabiliteti, ekzistonte me privilegje t\u00eb ulura n\u00eb nj\u00eb ambient t\u00eb izoluar Capsicum, p\u00ebr t'u dal\u00eb nga i cili nevojitej identifikimi i nj\u00eb vulnerabiliteti tjet\u00ebr.\n<p>\u0421\u0443\u0442\u044c \u043e\u0448\u0438\u0431\u043a\u0438 \u0432 \u043d\u0435\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0435 \u043f\u0430\u0440\u0430\u043c\u0435\u0442\u0440\u043e\u0432, \u0432 \u0432\u043e\u0437\u0432\u0440\u0430\u0449\u0430\u0435\u043c\u043e\u043c DHCP-\u0441\u0435\u0440\u0432\u0435\u0440\u043e\u043c \u043f\u0430\u043a\u0435\u0442\u0435  c 119-\u043e\u043f\u0446\u0438\u0435\u0439 DHCP, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0435\u0439 \u043f\u0435\u0440\u0435\u0434\u0430\u0442\u044c \u0441\u043f\u0438\u0441\u043e\u043a &#171;domain search&#187; \u0434\u043b\u044f \u0440\u0435\u0437\u043e\u043b\u0432\u0435\u0440\u0430. \u041d\u0435\u0432\u0435\u0440\u043d\u044b\u0439 \u0440\u0430\u0441\u0447\u0451\u0442 \u0440\u0430\u0437\u043c\u0435\u0440\u0430 \u0431\u0443\u0444\u0435\u0440\u0430, \u043d\u0435\u043e\u0431\u0445\u043e\u0434\u0438\u043c\u043e\u0433\u043e \u0434\u043b\u044f \u0440\u0430\u0437\u043c\u0435\u0449\u0435\u043d\u0438\u044f \u0440\u0430\u0441\u043f\u0430\u043a\u043e\u0432\u0430\u043d\u043d\u044b\u0445 <a class=\"wpil_keyword_link\" href=\"https:\/\/prohoster.info\/sq\/domain\/\"   title=\"emrave t\u00eb domain-eve\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"908\">emrave t\u00eb domain-eve<\/a>, \u00e7oi n\u00eb shkrimin e informacionit t\u00eb kontrolluar nga sulmuesi p\u00ebrtej buffers s\u00eb dedikuar. N\u00eb FreeBSD, problemi u eliminua q\u00eb n\u00eb muajin shtator t\u00eb vitit t\u00eb kaluar. Problemi mund t\u00eb shfryt\u00ebzohet vet\u00ebm n\u00ebse ka qasje n\u00eb rrjetin lokal.          <\/p>\n<li class=\"l\"> Nj\u00eb dob\u00ebsi n\u00eb stakun e rrjetit t\u00eb integruar IPnet, i p\u00ebrdorur n\u00eb RTOS VxWorks, lejon potencialisht ekzekutimin e kodit nga ana e klientit DNS p\u00ebr shkak t\u00eb p\u00ebrpunimit t\u00eb gabuar t\u00eb kompresimit t\u00eb mesazheve DNS. Si\u00e7 rezulton, kjo dob\u00ebsi u identifikua p\u00ebr her\u00eb t\u00eb par\u00eb nga kompania Exodus n\u00eb vitin 2016, por ende nuk \u00ebsht\u00eb rregulluar. Nj\u00eb k\u00ebrkes\u00eb e re p\u00ebr kompanin\u00eb Wind River gjithashtu nuk ka marr\u00eb p\u00ebrgjigje dhe pajisjet me IPnet mbeten t\u00eb vulnerueshme.\n<li class=\"l\"> N\u00eb stakun TCP\/IP Nucleus NET, t\u00eb mb\u00ebshtetur nga kompania Siemens, jan\u00eb identifikuar 6 dob\u00ebsi, nga t\u00eb cilat dy mund t\u00eb \u00e7onin n\u00eb ekzekutimin e kodeve n\u00eb distanc\u00eb, nd\u00ebrsa kat\u00ebr n\u00eb iniciimin e nj\u00eb refuzimi t\u00eb sh\u00ebrbimit. Problemi i par\u00eb i rreziksh\u00ebm lidhet me nj\u00eb gabim gjat\u00eb shp\u00ebrb\u00ebrjes s\u00eb mesazheve t\u00eb kompresuara DNS, nd\u00ebrsa i dyti me analizimin e gabuar t\u00eb etiketave t\u00eb emrave t\u00eb domainit. T\u00eb dy problemet \u00e7ojn\u00eb n\u00eb mbingarkes\u00eb t\u00eb memories gjat\u00eb p\u00ebrpunimit t\u00eb p\u00ebrgjigjeve t\u00eb dizajnuara posa\u00e7\u00ebrisht DNS.\n<p>P\u00ebr t\u00eb shfryt\u00ebzuar dob\u00ebsit\u00eb, sulmuesi ka nevoj\u00eb vet\u00ebm t\u00eb d\u00ebrgoj\u00eb nj\u00eb p\u00ebrgjigje t\u00eb formatizuar posa\u00e7\u00ebrisht p\u00ebr \u00e7do k\u00ebrkes\u00eb legjitime t\u00eb d\u00ebrguar nga nj\u00eb pajisje t\u00eb cenueshme, p\u00ebr shembull, n\u00ebp\u00ebrmjet zhvillimit t\u00eb nj\u00eb sulmi MTIM dhe nd\u00ebrhyrjes n\u00eb trafik nd\u00ebrmjet serverit DNS dhe viktim\u00ebs. N\u00ebse sulmuesi ka qasje n\u00eb rrjetin lokal, ai mund t\u00eb niste nj\u00eb server DNS q\u00eb p\u00ebrpiqet t\u00eb sulmoj\u00eb pajisjet e problemit duke d\u00ebrguar k\u00ebrkesa mDNS n\u00eb modin e l\u00ebshimit.    <\/p>\n<li class=\"l\"> Dob\u00ebsia n\u00eb steknetin rrjetor NetX (Azure RTOS NetX), i zhvilluar p\u00ebr ThreadX RTOS dhe i hapur n\u00eb vitin 2019 pas kalimit n\u00eb duar t\u00eb Microsoft, u kufizua n\u00eb nj\u00eb refuzim sh\u00ebrbimi. Problemi shkaktohet nga nj\u00eb gabim n\u00eb p\u00ebrpunimin e mesazheve t\u00eb kompaktuar DNS n\u00eb implementimin e zgjidh\u00ebsit.      <\/ul>\n<p>Nga steknet q\u00eb jan\u00eb verifikuar, n\u00eb t\u00eb cilat nuk jan\u00eb gjetur dob\u00ebsi t\u00eb lidhura me kompresimin e t\u00eb dh\u00ebnave t\u00eb p\u00ebrs\u00ebritura n\u00eb mesazhet DNS, jan\u00eb p\u00ebrmendur projektet lwIP, Nut\/Net, Zephyr, uC\/TCP-IP, uC\/TCP-IP, FreeRTOS+TCP, OpenThread dhe FNET. Nd\u00ebrkoh\u00eb, dy t\u00eb parat (Nut\/Net dhe lwIP) n\u00eb fakt nuk mb\u00ebshtesin aspak kompresimin n\u00eb mesazhet DNS, nd\u00ebrsa t\u00eb tjerat e realizojn\u00eb k\u00ebt\u00eb operacion pa gabime. P\u00ebrve\u00e7 k\u00ebsaj, v\u00ebrehet se m\u00eb par\u00eb, t\u00eb nj\u00ebjtit hulumtues kishin zbuluar dob\u00ebsi t\u00eb ngjashme n\u00eb steknet Treck, uIP dhe PicoTCP.<br \/>\n<br \/>Burimi: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=54961\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u0433\u0440\u0443\u043f\u043f\u044b Forescout Research Labs \u0438 JSOF Research \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0439 \u0441\u0445\u0435\u043c\u044b \u0441\u0436\u0430\u0442\u0438\u044f, \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u0435\u043c\u043e\u0439 \u0434\u043b\u044f \u0443\u043f\u0430\u043a\u043e\u0432\u043a\u0438 \u043f\u043e\u0432\u0442\u043e\u0440\u044f\u044e\u0449\u0438\u0445\u0441\u044f \u0438\u043c\u0451\u043d \u0432 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f\u0445 DNS, mDNS, DHCP \u0438 IPv6 RA (\u0443\u043f\u0430\u043a\u043e\u0432\u043a\u0430 \u0434\u0443\u0431\u043b\u0438\u0440\u0443\u044e\u0449\u0438\u0445\u0441\u044f \u0447\u0430\u0441\u0442\u0435\u0439 \u0434\u043e\u043c\u0435\u043d\u043e\u0432 \u0432 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f\u0445, \u0432\u043a\u043b\u044e\u0447\u0430\u044e\u0449\u0438\u0445 \u043d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u0438\u043c\u0451\u043d). \u0412 \u0445\u043e\u0434\u0435 \u043f\u0440\u043e\u0432\u0435\u0434\u0451\u043d\u043d\u043e\u0439 \u0440\u0430\u0431\u043e\u0442\u044b \u0431\u044b\u043b\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e 9 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043a\u043e\u0442\u043e\u0440\u044b\u0435 \u043e\u0431\u043e\u0431\u0449\u0435\u043d\u044b \u043f\u043e\u0434 \u043a\u043e\u0434\u043e\u0432\u044b\u043c \u0438\u043c\u0435\u043d\u0435\u043c NAME:WRECK. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b [&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-99712","post","type-post","status-publish","format-standard","hentry","category-novosti-interneta"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One 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\u0438\u043c\u0435\u043d\u0435\u043c NAME:WRECK. \u041f\u0440\u043e\u0431\u043b\u0435\u043c\u044b \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u044b\" \/>\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\/sq\/blog\/novosti-interneta\/uyazvimosti-vo-freebsd-ipnet-i-nucleus-net-svyazannye-s-oshibkami-pri-realizaczii-szhatiya-v-dns\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.0.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"sq_AL\" \/>\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\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u0432\u043e FreeBSD, IPnet \u0438 Nucleus NET, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u044b\u0435 \u0441 \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u043f\u0440\u0438 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0441\u0436\u0430\u0442\u0438\u044f \u0432 DNS | ProHoster\" \/>\n\t\t<meta property=\"og:description\" content=\"\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u044c\u0441\u043a\u0438\u0435 \u0433\u0440\u0443\u043f\u043f\u044b Forescout Research Labs \u0438 JSOF Research \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0441\u043e\u0432\u043c\u0435\u0441\u0442\u043d\u043e\u0433\u043e \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f 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kompresimit, e cila p\u00ebrdoret p\u00ebr paketimin e emrave t\u00eb p\u00ebrs\u00ebritur n\u00eb mesazhet DNS, mDNS, DHCP dhe IPv6 RA (paketimi i pjes\u00ebve t\u00eb dyfishta t\u00eb domenit n\u00eb mesazhe q\u00eb p\u00ebrfshijn\u00eb disa emra). 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