{"id":80486,"date":"2020-05-06T13:42:20","date_gmt":"2020-05-06T11:42:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/administrirovanie\/problemy-avtonomnyh-skud-tam-otkuda-ne-zhdali"},"modified":"2020-05-06T13:42:20","modified_gmt":"2020-05-06T11:42:20","slug":"problemy-avtonomnyh-skud-tam-otkuda-ne-zhdali","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/administrirovanie\/problemy-avtonomnyh-skud-tam-otkuda-ne-zhdali","title":{"rendered":"Probl\u00e9my s autonomn\u00edmi SKUD \u2014 Tam, odkud to ne\u010dekali","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>V\u0161etk\u00fdm prajem dobr\u00fd de\u0148. Za\u010dnem s pozad\u00edm, ktor\u00e9 ma podnietilo na vykonanie tohto v\u00fdskumu, ale najprv varujem: v\u0161etky praktick\u00e9 \u010dinnosti boli vykonan\u00e9 so s\u00fahlasom riadiacich org\u00e1nov. Ak\u00e1ko\u013evek snaha pou\u017ei\u0165 tento materi\u00e1l na prenikanie na uzavret\u00e9 \u00fazemie bez povolenia je trestn\u00fdm \u010dinom. <\/p>\n<p>V\u0161etko sa za\u010dalo t\u00fdm, \u017ee ke\u010f som upratoval na stole, n\u00e1hodou som umiestnil RFID k\u013e\u00fa\u010d od vchodu na NFC \u010d\u00edta\u010dku ACR122 - ak\u00e9 bolo moje prekvapenie, ke\u010f Windows prehral zvuk detekcie nov\u00e9ho zariadenia a LED di\u00f3da sa rozsvietila na zeleno. Doteraz som si myslel, \u017ee tieto k\u013e\u00fa\u010de funguj\u00fa v\u00fdhradne v \u0161tandarde Proximity.<br \/>\n<img decoding=\"async\" alt=\"Probl\u00e9my s autonomn\u00edmi SKUD \u2014 Tam, odkud to ne\u010dekali\" src=\"\/wp-content\/uploads\/2020\/05\/7f9a2b1189564d55a1eaf41837625e60.jpg\" style=\"display:block;margin: 0 auto;\" \/><noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n Ale ak ho \u010d\u00edta\u010dka videla, znamen\u00e1 to, \u017ee k\u013e\u00fa\u010d sp\u013a\u0148a jeden z protokolov nad r\u00e1mec \u0161tandardu ISO 14443 (t.j. Near Field Communication, 13,56 MHz). Na upratovanie sa okam\u017eite zabudlo, preto\u017ee som videl mo\u017enos\u0165 zbavi\u0165 sa k\u013e\u00fa\u010dov a uchova\u0165 si k\u013e\u00fa\u010d od vchodu v telef\u00f3ne (byt je u\u017e d\u00e1vno vybaven\u00fd elektronick\u00fdm z\u00e1mkom). Po sk\u00faman\u00ed som zistil, \u017ee pod plastom sa skr\u00fdva NFC zna\u010dka Mifare 1k - rovnak\u00fd model, ktor\u00fd sa pou\u017e\u00edva na identifika\u010dn\u00fdch kart\u00e1ch, dopravn\u00fdch kart\u00e1ch at\u010f. Pokusy o prenikanie do obsahu sektorov sprvu neprin\u00e1\u0161ali \u00faspech, av\u0161ak ke\u010f sa mi k\u013e\u00fa\u010d podarilo prelomi\u0165 - zistil som, \u017ee sa pou\u017e\u00edva iba 3. sektor, a v \u0148om je zdvojen\u00e9 UID samotn\u00e9ho \u010dipu. Zdalo sa to pr\u00edli\u0161 jednoduch\u00e9 a nakoniec sa aj uk\u00e1zalo, \u017ee by neexistoval \u010dl\u00e1nok, ak by v\u0161etko prebehlo presne tak, ako to bolo pl\u00e1novan\u00e9. Tak som z\u00edskal vn\u00fatro k\u013e\u00fa\u010da, a neboli by \u017eiadne probl\u00e9my, ak by bolo potrebn\u00e9 skop\u00edrova\u0165 k\u013e\u00fa\u010d na in\u00fd rovnak\u00fd. Ale \u00falohou bolo prenies\u0165 k\u013e\u00fa\u010d na mobiln\u00e9 zariadenie, \u010d\u00edm som sa aj zaoberal. A tu sa za\u010dalo z\u00e1bava - m\u00e1me telef\u00f3n - <b>iPhone SE<\/b> s nain\u0161talovan\u00fdm <b>iOS 13.4.5 Beta build 17F5044d<\/b> a niektor\u00fdmi prisp\u00f4soben\u00fdmi komponentmi pre vo\u013en\u00fa pr\u00e1cu s NFC - na tom sa podrobne zastavova\u0165 nebudem z objekt\u00edvnych d\u00f4vodov. Ak si \u017eel\u00e1te, v\u0161etko, \u010do bude povedan\u00e9 \u010falej, je aplikovate\u013en\u00e9 aj na syst\u00e9m Android, ale s niektor\u00fdmi zjednodu\u0161eniami.<\/p>\n<p><b>Zoznam \u00faloh na rie\u0161enie:<\/b><\/p>\n<ul>\n<li><b>Z\u00edska\u0165 pr\u00edstup k obsahu k\u013e\u00fa\u010da.<\/b><\/li>\n<li><b>Implementova\u0165 mo\u017enos\u0165 emul\u00e1cie k\u013e\u00fa\u010da zariaden\u00edm.<\/b><\/li>\n<\/ul>\n<p>\n Ak prv\u00e9 bolo relat\u00edvne jednoduch\u00e9, pri druhom vznikli probl\u00e9my. Prv\u00e1 verzia emul\u00e1tora nefungovala. Probl\u00e9m bol pomerne r\u00fdchlo odhalen\u00fd \u2013 na mobiln\u00fdch zariadeniach (\u010di u\u017e iOS alebo Android) v re\u017eime emul\u00e1cie je UID dynamick\u00e9 a nez\u00e1visle od toho, \u010do je zak\u00f3dovan\u00e9 v obraze \u2013 sa men\u00ed. Druh\u00e1 verzia (spusten\u00e1 s pr\u00e1vami spr\u00e1vcu) pevne zafixovala s\u00e9riov\u00e9 \u010d\u00edslo na vybratom \u2013 dvere sa otvorili. Av\u0161ak chcel som to urobi\u0165 dokonale, a nakoniec som zostavil dokon\u010den\u00fa verziu emul\u00e1tora, ktor\u00e1 mohla otv\u00e1ra\u0165 dumpy Mifare a emulova\u0165 ich. Pod\u013eahol som n\u00e1hlemu popudu, zmenil som k\u013e\u00fa\u010de sektorov na n\u00e1hodn\u00e9 a pok\u00fasil som sa otvori\u0165 dvere. A ona\u2026 <i>OTVORILA SA! <\/i> Po chv\u00edli som pochopil, \u017ee sa otv\u00e1raj\u00fa <i>ak\u00e9ko\u013evek<\/i> dvere s t\u00fdmto z\u00e1mkom, dokonca aj tie, ku ktor\u00fdm p\u00f4vodn\u00fd k\u013e\u00fa\u010d nepasoval. V s\u00favislosti s t\u00fdm som vytvoril nov\u00fd zoznam \u00faloh na vykonanie:<\/p>\n<ul>\n<li><b>Zisti\u0165, ktor\u00fd ovl\u00e1da\u010d zodpoved\u00e1 za pr\u00e1cu s k\u013e\u00fa\u010dmi<\/b> <\/li>\n<li><b>Pochopi\u0165, \u010di je pripojenie k sieti a spolo\u010dn\u00e1 datab\u00e1za<\/b> <\/li>\n<li><b>Zisti\u0165, pre\u010do fakticky ne\u010ditate\u013en\u00fd k\u013e\u00fa\u010d sa st\u00e1va univerz\u00e1lnym<\/b> <\/li>\n<\/ul>\n<p>\nPo rozhovore s in\u017einierom spr\u00e1vy spolo\u010dnosti som sa dozvedel, \u017ee pou\u017e\u00edvaj\u00fa jednoduch\u00e9 ovl\u00e1da\u010de Iron Logic z5r bez pripojenia k extern\u00e9mu sieti.<\/p>\n<p>                        <b class=\"spoiler_title\">\u010c\u00edta\u010dka CP-Z2 MF a ovl\u00e1da\u010d IronLogic z5r<\/b><br \/>\n                         Dali mi s\u00fapravu zariaden\u00ed na experimenty:<\/p>\n<p><img decoding=\"async\" alt=\"Probl\u00e9my s autonomn\u00edmi SKUD \u2014 Tam, odkud to ne\u010dekali\" src=\"\/wp-content\/uploads\/2020\/05\/24229d027cb7c55ec8aa20eb269ac7e6.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nAko sa tu d\u00e1 predpoklada\u0165 \u2013 syst\u00e9m je \u00faplne auton\u00f3mny a mimoriadne primit\u00edvny. Najprv som si myslel, \u017ee ovl\u00e1da\u010d je v re\u017eime u\u010denia \u2013 zmysel je tak\u00fd, \u017ee na\u010d\u00edta k\u013e\u00fa\u010d, ulo\u017e\u00ed ho do pam\u00e4ti a otvor\u00ed dvere \u2013 tento re\u017eim sa pou\u017e\u00edvaj\u00fa, ke\u010f je potrebn\u00e9 zaznamena\u0165 v\u0161etky k\u013e\u00fa\u010de, napr\u00edklad pri v\u00fdmene z\u00e1mku v bytovom dome. Ale t\u00e1to te\u00f3ria sa nepotvrdila \u2013 softv\u00e9rovo je tento re\u017eim vypnut\u00fd, skratka je v pracovnej polohe \u2013 a predsa pri pribl\u00ed\u017een\u00ed zariadenia vid\u00edme nasledovn\u00e9:<\/p>\n<p>                        <b class=\"spoiler_title\">Sn\u00edmka procesu emul\u00e1cie na zariaden\u00ed<\/b><br \/>\n                        <img decoding=\"async\" alt=\"Probl\u00e9my s autonomn\u00edmi SKUD \u2014 Tam, odkud to ne\u010dekali\" src=\"\/wp-content\/uploads\/2020\/05\/ba774fc83aafde90d0ce680717cdbd9b.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n\u2026 a ovl\u00e1da\u010d signalizuje, \u017ee pr\u00edstup je poskytnut\u00fd.<\/p>\n<p>Teda probl\u00e9m je v softv\u00e9ri bu\u010f ovl\u00e1da\u010da, alebo \u010d\u00edta\u010dky. Po\u010fme skontrolova\u0165 \u010d\u00edta\u010dku \u2013 t\u00e1 pracuje v re\u017eime iButton, teda pripoj\u00edme bezpe\u010dnostn\u00fa dosku Bolid \u2013 budeme ma\u0165 mo\u017enos\u0165 pozrie\u0165 sa na v\u00fdstupn\u00e9 d\u00e1ta z \u010d\u00edta\u010dky.<\/p>\n<p>                        <b class=\"spoiler_title\">Doska bude nesk\u00f4r pripojen\u00e1 cez RS232<\/b><br \/>\n                        <img decoding=\"async\" alt=\"Probl\u00e9my s autonomn\u00edmi SKUD \u2014 Tam, odkud to ne\u010dekali\" src=\"\/wp-content\/uploads\/2020\/05\/2960cec6f70f0abd98557a28e54eca6f.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p>\nMet\u00f3dou viacer\u00fdch pokusov zis\u0165ujeme, \u017ee \u010d\u00edta\u010dka preklad\u00e1 ten ist\u00fd k\u00f3d v pr\u00edpade ne\u00faspe\u0161nej autoriz\u00e1cie: 1219191919<\/p>\n<p>Situ\u00e1cia sa za\u010d\u00edna objas\u0148ova\u0165, av\u0161ak v s\u00fa\u010dasnosti mi nie je jasn\u00e9, pre\u010do na tento k\u00f3d pozit\u00edvne reaguje kontrol\u00e9r. M\u00e1m podozrenie, \u017ee ke\u010f sme nap\u013a\u0148ali datab\u00e1zu, n\u00e1hodou alebo z\u00e1merne sme prilo\u017eili kartu s in\u00fdmi k\u013e\u00fa\u010dmi sektora \u2014 \u010d\u00edta\u010dka poslala tento k\u00f3d a kontrol\u00e9r si ho ulo\u017eil. Bohu\u017eia\u013e, nem\u00e1m k dispoz\u00edcii origin\u00e1lny program\u00e1tor od IronLogic, aby som sa pozrel do datab\u00e1zy k\u013e\u00fa\u010dov kontrol\u00e9ra, no d\u00fafam, \u017ee som sa dok\u00e1zal s\u00fastredi\u0165 na to, \u017ee probl\u00e9m existuje. Videodemonstr\u00e1cia pr\u00e1ce s touto zranite\u013enos\u0165ou je k dispoz\u00edcii. <noindex><a rel=\"nofollow\" href=\"https:\/\/vk.com\/video104139075_456239166\">na odkaze<\/a><\/noindex>.<\/p>\n<p>P.S. Proti te\u00f3rii n\u00e1hodn\u00e9ho pridania svede\u010d\u00ed fakt, \u017ee v jednom obchodnom stredisku v Krasnojarsku sa mi taktie\u017e podarilo otvori\u0165 dvere t\u00fdmto rovnak\u00fdm sp\u00f4sobom.<br \/>\n<br \/>Zdroj: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/500396\/\">habr.com<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0412\u0441\u0435\u043c \u0434\u043e\u0431\u0440\u043e\u0433\u043e \u0432\u0440\u0435\u043c\u0435\u043d\u0438 \u0441\u0443\u0442\u043e\u043a. \u041d\u0430\u0447\u043d\u0443 \u0441 \u043f\u0440\u0435\u0434\u044b\u0441\u0442\u043e\u0440\u0438\u0438, \u043e \u0442\u043e\u043c, \u0447\u0442\u043e \u043c\u0435\u043d\u044f \u043f\u043e\u0431\u0443\u0434\u0438\u043b\u043e \u043f\u0440\u043e\u0432\u0435\u0441\u0442\u0438 \u0434\u0430\u043d\u043d\u043e\u0435 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u0435, \u043d\u043e \u043f\u0440\u0435\u0436\u0434\u0435 \u043f\u0440\u0435\u0434\u0443\u043f\u0440\u0435\u0436\u0443: \u0432\u0441\u0435 \u043f\u0440\u0430\u043a\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0435 \u0434\u0435\u0439\u0441\u0442\u0432\u0438\u044f \u0431\u044b\u043b\u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u044b \u0441 \u0441\u043e\u0433\u043b\u0430\u0441\u0438\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u044f\u044e\u0449\u0438\u0445 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440. \u041b\u044e\u0431\u0430\u044f \u043f\u043e\u043f\u044b\u0442\u043a\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0434\u0430\u043d\u043d\u044b\u0439 \u043c\u0430\u0442\u0435\u0440\u0438\u0430\u043b \u0432 \u0446\u0435\u043b\u044f\u0445 \u043f\u0440\u043e\u043d\u0438\u043a\u043d\u043e\u0432\u0435\u043d\u0438\u044f \u043d\u0430 \u0437\u0430\u043a\u0440\u044b\u0442\u0443\u044e \u0442\u0435\u0440\u0440\u0438\u0442\u043e\u0440\u0438\u044e \u0431\u0435\u0437 \u043f\u0440\u0430\u0432\u0430 \u0442\u0430\u043c \u043d\u0430\u0445\u043e\u0434\u0438\u0442\u044c\u0441\u044f \u2014 \u044f\u0432\u043b\u044f\u0435\u0442\u0441\u044f \u0443\u0433\u043e\u043b\u043e\u0432\u043d\u044b\u043c \u043f\u0440\u0430\u0432\u043e\u043d\u0430\u0440\u0443\u0448\u0435\u043d\u0438\u0435\u043c. \u041d\u0430\u0447\u0430\u043b\u043e\u0441\u044c \u0432\u0441\u0435 \u0441 \u0442\u043e\u0433\u043e, \u0447\u0442\u043e \u0443\u0431\u0438\u0440\u0430\u044f\u0441\u044c \u043d\u0430 \u0441\u0442\u043e\u043b\u0435, \u044f [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":80487,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-80486","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.4 - 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