{"id":119766,"date":"2024-09-12T03:43:01","date_gmt":"2024-09-12T01:43:01","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/popytka-polucheniya-tls-sertifikatov-dlya-chuzhih-domenov-mobi-ispolzuya-prosrochennyj-domen-s-whois-servisom"},"modified":"2024-09-12T03:43:01","modified_gmt":"2024-09-12T01:43:01","slug":"popytka-polucheniya-tls-sertifikatov-dlya-chuzhih-domenov-mobi-ispolzuya-prosrochennyj-domen-s-whois-servisom","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/popytka-polucheniya-tls-sertifikatov-dlya-chuzhih-domenov-mobi-ispolzuya-prosrochennyj-domen-s-whois-servisom","title":{"rendered":"Pok\u00fas o z\u00edskanie TLS certifik\u00e1tov pre cudzie dom\u00e9ny mobi, pomocou prepadnut\u00e9ho dom\u00e9ny s WHOIS slu\u017ebou.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

V\u00fdskumn\u00edci zo spolo\u010dnosti watchTowr Labs zverejnili v\u00fdsledky experimentu so zachyten\u00edm zastaran\u00e9ho WHOIS slu\u017eby registr\u00e1tora dom\u00e9novej z\u00f3ny . D\u00f4vodom pre \u0161t\u00fadiu bolo to, \u017ee registr\u00e1tor zmenil adresu WHOIS slu\u017eby, presunul ju z dom\u00e9ny whois.dotmobiregistry.net na nov\u00fd host whois.nic.mobi. Dom\u00e9na dotmobiregistry.net prestala by\u0165 pou\u017e\u00edvan\u00e1 a v decembri 2023 bola uvo\u013enen\u00e1 a stala sa dostupnou na registr\u00e1ciu. <\/p>\n

Vedci minuli 20 dol\u00e1rov a k\u00fapili t\u00fato dom\u00e9nu, po \u010dom na svojom serveri spustili vlastn\u00fd fikt\u00edvny WHOIS-servis whois.dotmobiregistry.net. Prekvapen\u00edm bolo, \u017ee mnoh\u00e9 syst\u00e9my neprepli na nov\u00e9ho hostite\u013ea whois.nic.mobi a na\u010falej pou\u017e\u00edvali star\u00e9 meno. Od 30. augusta do 4. septembra tohto roku bolo zaznamenan\u00fdch 2,5 mili\u00f3na po\u017eiadaviek na star\u00e9 meno, odoslan\u00fdch z viac ako 135 tis\u00edc unik\u00e1tnych syst\u00e9mov. <\/p>\n

Medzi odosielate\u013emi po\u017eiadaviek boli pr\u00edtomn\u00ed aj zamestnanci servery<\/a> \u0161t\u00e1tnych a vojensk\u00fdch organiz\u00e1ci\u00ed, ktor\u00ed overovali dom\u00e9ny uveden\u00e9 v emailoch cez WHOIS, \u0161pecializuj\u00face sa na bezpe\u010dnos\u0165 spolo\u010dnosti a platformy zabezpe\u010denia (VirusTotal, Group-IB), ako aj certifika\u010dn\u00e9 centr\u00e1, slu\u017eby na kontrolu dom\u00e9n, SEO slu\u017eby a registr\u00e1tori dom\u00e9n (napr\u00edklad domain.com, godaddy.com, who.is, whois.ru, smallseo.tools, seocheki.net, centralops.net, name.com, urlscan.io a webchart.org). <\/p>\n

Mo\u017enos\u0165 zasiela\u0165 ak\u00e9ko\u013evek \u00fadaje ako odpove\u010f na dotazy k star\u00e9mu WHOIS servisu dom\u00e9novej z\u00f3ny bola vyu\u017eit\u00e1 na v\u00fdvoj nieko\u013ek\u00fdch typov \u00fatokov na odosielate\u013eov po\u017eiadaviek. Prv\u00e1 verzia \u00fatoku vych\u00e1dzala z predpokladu, \u017ee ak niekto na\u010falej zasiela po\u017eiadavky na d\u00e1vno nahraden\u00fa slu\u017ebu, pravdepodobne tak rob\u00ed s pou\u017eit\u00edm zastaran\u00e9ho n\u00e1stroja, ktor\u00fd obsahuje zranite\u013enosti. <\/p>\n

Napr\u00edklad, vo verzii phpWHOIS bola v roku 2015 objaven\u00e1 zranite\u013enos\u0165 CVE-2015-5243, ktor\u00e1 umo\u017enila vykonanie k\u00f3du \u00fato\u010dn\u00edka pri spracovan\u00ed \u0161peci\u00e1lne form\u00e1tovan\u00fdch \u00fadajov, ktor\u00e9 server WHOIS vracal. \u010eal\u0161\u00edm pr\u00edkladom je zranite\u013enos\u0165 CVE-2021-32749, ktor\u00e1 bola objaven\u00e1 v roku 2021 v bal\u00edku Fail2Ban, umo\u017e\u0148uj\u00faca vykonanie extern\u00e9ho k\u00f3du pri vracan\u00ed nespr\u00e1vnych \u00fadajov WHOIS-servisom, ktor\u00fd sa pou\u017e\u00edval v procese generovania upozornen\u00ed na blokovanie (Fail2Ban ur\u010doval cez WHOIS email administr\u00e1tora hostite\u013ea a uv\u00e1dzal ho pri sp\u00fa\u0161\u0165an\u00ed pr\u00edkazu mail bez riadneho vykonania \u0161peci\u00e1lnych znakov). <\/p>\n

Druh\u00fd \u00fatok sa zaklad\u00e1 na tom, \u017ee niektor\u00e9 certifika\u010dn\u00e9 autority poskytuj\u00fa mo\u017enos\u0165 overenia vlastn\u00edctva dom\u00e9ny prostredn\u00edctvom e-mailu uveden\u00e9ho v datab\u00e1ze registr\u00e1tora dom\u00e9ny, dostupnej prostredn\u00edctvom protokolu WHOIS. Uk\u00e1zalo sa, \u017ee nieko\u013eko certifika\u010dn\u00fdch autor\u00edt s podporou tejto met\u00f3dy overenia na\u010falej pou\u017e\u00edva star\u00fd WHOIS server pre dom\u00e9nov\u00fa z\u00f3nu . <\/p>\n

Tak\u017ee, ak sa \u00fato\u010dn\u00edci dostan\u00fa pod kontrolu n\u00e1zvu whois.dotmobiregistry.net, m\u00f4\u017eu vr\u00e1ti\u0165 svoje \u00fadaje, vykona\u0165 potvrdenie a z\u00edska\u0165 TLS certifik\u00e1t<\/a> pre ak\u00fako\u013evek dom\u00e9nu v z\u00f3ne .MOBI. Napr\u00edklad, v r\u00e1mci experimentu v\u00fdskumn\u00edci po\u017eiadali registr\u00e1tora GlobalSign o TLS certifik\u00e1t pre dom\u00e9nu microsoft.mobi a vr\u00e1ten\u00fd fikt\u00edvny WHOIS servisom e-mail bol v rozhran\u00ed zobrazen\u00fd ako dostupn\u00fd na zaslanie k\u00f3du potvrdenia vlastn\u00edctva dom\u00e9ny.

\"Pok\u00fas<\/center>
\n
Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0418\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0438 \u0438\u0437 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0438 watchTowr Labs \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0438 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u044d\u043a\u0441\u043f\u0435\u0440\u0438\u043c\u0435\u043d\u0442\u0430 \u0441 \u0437\u0430\u0445\u0432\u0430\u0442\u043e\u043c \u0443\u0441\u0442\u0430\u0440\u0435\u0432\u0448\u0435\u0433\u043e WHOIS-\u0441\u0435\u0440\u0432\u0438\u0441\u0430 \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440\u0430 \u0434\u043e\u043c\u0435\u043d\u043d\u043e\u0439 \u0437\u043e\u043d\u044b «.MOBI». \u041f\u043e\u0432\u043e\u0434\u043e\u043c \u0434\u043b\u044f \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u043d\u0438\u044f \u043f\u043e\u0441\u043b\u0443\u0436\u0438\u043b\u043e \u0442\u043e, \u0447\u0442\u043e \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0442\u043e\u0440 \u043f\u043e\u043c\u0435\u043d\u044f\u043b \u0430\u0434\u0440\u0435\u0441 WHOIS-\u0441\u0435\u0440\u0432\u0438\u0441\u0430, \u043f\u0435\u0440\u0435\u043c\u0435\u0441\u0442\u0438\u0432 \u0435\u0433\u043e \u0441 \u0434\u043e\u043c\u0435\u043d\u0430 whois.dotmobiregistry.net \u043d\u0430 \u043d\u043e\u0432\u044b\u0439 \u0445\u043e\u0441\u0442 whois.nic.mobi. \u041f\u0440\u0438 \u044d\u0442\u043e\u043c \u0434\u043e\u043c\u0435\u043d dotmobiregistry.net \u043f\u0435\u0440\u0435\u0441\u0442\u0430\u043b \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c\u0441\u044f \u0438 \u0432 \u0434\u0435\u043a\u0430\u0431\u0440\u0435 2023 \u0433\u043e\u0434\u0430 \u0431\u044b\u043b \u043e\u0441\u0432\u043e\u0431\u043e\u0436\u0434\u0451\u043d \u0438 \u0441\u0442\u0430\u043b \u0434\u043e\u0441\u0442\u0443\u043f\u0435\u043d \u0434\u043b\u044f \u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0430\u0446\u0438\u0438. 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