{"id":30609,"date":"2019-10-31T21:36:28","date_gmt":"2019-10-31T18:36:28","guid":{"rendered":"https:\/\/prohoster.info\/blog\/spetsialisty-nashli-36-novyh-uyazvimostej-v-protokole-4g-lte\/"},"modified":"2019-10-31T21:36:28","modified_gmt":"2019-10-31T18:36:28","slug":"spetsialisty-nashli-36-novyh-uyazvimostej-v-protokole-4g-lte","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/spetsialisty-nashli-36-novyh-uyazvimostej-v-protokole-4g-lte","title":{"rendered":"Stru\u010dnjaci su otkrili 36 novih ranjivosti u 4G LTE protokolu","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Svaki put kada se prelazi na sve noviji standard mobilne komunikacije, to ne samo da zna\u010di pove\u0107anje brzine razmjene podataka, ve\u0107 tako\u0111er omogu\u0107uje da komunikacija bude pouzdanija i za\u0161ti\u0107enija od neautoriziranog pristupa. Za to se koriste ranjivosti otkrivene u prethodnim protokolima, kao i nove metode provjere sigurnosti. U tom smislu, 5G protokol obe\u0107ava da \u0107e biti pouzdaniji od 4G (LTE) protokola, iako to ne isklju\u010duje mogu\u0107nost otkrivanja ranjivosti u budu\u0107nosti kod 5G. Godine eksploatacije 4G tako\u0111er nisu oslobodile ovaj protokol od otkrivanja mnogih novih ranjivosti. Sve\u017ee istra\u017eivanje ju\u017enokorejskih stru\u010dnjaka za sigurnost otkrilo je 36 novih opasnih ranjivosti u 4G protokolu.<\/p>\n

\"Stru\u010dnjaci<\/p>\n

Stru\u010dnjaci iz Korea Advanced Institute of Science and Technology (KAIST) primijenili su istu metodu za pronala\u017eenje ranjivosti u LTE protokolu koja se koristi prilikom tra\u017eenja problemati\u010dnih re\u0161enja u softveru za osobne ra\u010dunala i poslu\u017eitelja<\/a>. To je takozvana metoda fuzzinga, pri \u010demu se sistem napada (optere\u0107uje) slijedom neto\u010dnih, neo\u010dekivanih ili nasumi\u010dnih podataka. Nakon optere\u0107enja, prou\u010dava se odgovor sistema i razvijaju se scenariji za\u0161tite ili daljnjeg napada. Ovaj rad se mo\u017ee izvoditi u poluautomatskom re\u017eimu, povjeravaju\u0107i sustavu proces prijenosa i prijema podataka, dok se scenariji napada i analiza prikupljenih podataka razvijaju ru\u010dno. Na primjer, stru\u010dnjaci KAIST-a razvili su alat LTEFuzz za provjeru sigurnosti LTE protokola i pronala\u017eenje ranjivosti, ali obe\u0107avaju da ga ne\u0107e objaviti javnosti, ve\u0107 ga isporu\u010diti samo proizvo\u0111a\u010dima opreme i telekomunikacijskim operaterima.<\/p>\n

\"Stru\u010dnjaci
\n<\/center><\/p>\n

Uz pomo\u0107 LTEFuzz otkrivene su vi\u0161e od 50 ranjivosti, od kojih je 36 bilo potpuno novih. Metoda je omogu\u0107ila pronala\u017eenje 15 ve\u0107 poznatih ranjivosti, \u0161to je potvrdilo ispravnost odabrane tehnologije (ako su poznate, za\u0161to nisu zatvorene?). Testiranje je provedeno u mre\u017eama dva neimenovana operatera uz suradnju s njima, tako da obi\u010dni korisnici nisu bili pogo\u0111eni. Otkrijeno je mnogo zanimljivog. Uspjeli smo prislu\u0161kivati korisnike, \u010ditati podatke tijekom razmjene izme\u0111u baznih stanica i ure\u0111aja, slati la\u017ene SMS poruke, blokirati dolazne pozive, isklju\u010divati pretplatnike iz mre\u017ee, upravljati prometom i raditi mnogo drugih stvari. Svi otkriveni ranjivosti, uklju\u010duju\u0107i 'rupa' u opremi baznih stanica mobilne komunikacije, stru\u010dnjaci KAIST-a prijavili su proizvo\u0111a\u010dima i organizacijama 3GPP i GSMA.<\/p>\n

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Izvor: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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