{"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\/hu\/blog\/news\/popytka-polucheniya-tls-sertifikatov-dlya-chuzhih-domenov-mobi-ispolzuya-prosrochennyj-domen-s-whois-servisom","title":{"rendered":"TLS-tan\u00fas\u00edtv\u00e1nyok megszerz\u00e9se m\u00e1sok domainjeihez lej\u00e1rt domain haszn\u00e1lat\u00e1val a WHOIS-szolg\u00e1ltat\u00e1ssal","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A watchTowr Labs kutat\u00f3i k\u00f6zz\u00e9tett\u00e9k egy k\u00eds\u00e9rlet eredm\u00e9nyeit, amely az elavult WHOIS-szolg\u00e1ltat\u00e1s megszerz\u00e9s\u00e9vel foglalkozott a «.MOBI» domain z\u00f3n\u00e1hoz. A kutat\u00e1sra az adott indok az volt, hogy a regisztr\u00e1tor megv\u00e1ltoztatta a WHOIS-szolg\u00e1ltat\u00e1s c\u00edm\u00e9t, \u00e9s \u00e1ttelep\u00edtette azt a whois.dotmobiregistry.net domainr\u0151l az \u00faj whois.nic.mobi hosztra. Ek\u00f6zben a dotmobiregistry.net domain m\u00e1r nem volt haszn\u00e1latban, \u00e9s 2023 december\u00e9ben el\u00e9rhet\u0151v\u00e9 v\u00e1lt a regisztr\u00e1ci\u00f3ra. <\/p>\n

A kutat\u00f3k 20 doll\u00e1rt k\u00f6lt\u00f6ttek, hogy megv\u00e1s\u00e1rolj\u00e1k ezt a domaint, majd saj\u00e1t, hamis WHOIS-szolg\u00e1ltat\u00e1sukat ind\u00edtott\u00e1k a whois.dotmobiregistry.net c\u00edmen. Meglepet\u00e9sk\u00e9nt \u00e9rte \u0151ket, hogy sok rendszer nem v\u00e1ltott az \u00faj whois.nic.mobi hostra, hanem tov\u00e1bbra is a r\u00e9gi nevet haszn\u00e1lt\u00e1k. Augusztus 30. \u00e9s szeptember 4. k\u00f6z\u00f6tt 2,5 milli\u00f3 lek\u00e9rdez\u00e9st r\u00f6gz\u00edtettek a r\u00e9gi n\u00e9vre, melyet t\u00f6bb mint 135 ezer egyedi rendszer k\u00fcld\u00f6tt. <\/p>\n

A lek\u00e9rdez\u00e9sek k\u00fcld\u0151i k\u00f6z\u00f6tt olyan levelez\u0151rendszerek is voltak, szerverek<\/a> korm\u00e1nyzati \u00e9s katonai szervezetek, akik az emailben szerepl\u0151 domainjeiket ellen\u0151rizt\u00e9k a WHOIS-on, biztons\u00e1gra szakosodott c\u00e9gek \u00e9s biztons\u00e1gi platformok (VirusTotal, Group-IB), valamint hiteles\u00edt\u00e9sszolg\u00e1ltat\u00f3k, domain ellen\u0151rz\u0151 szolg\u00e1ltat\u00e1sok, SEO-szolg\u00e1ltat\u00f3k \u00e9s domain regisztr\u00e1torok (p\u00e9ld\u00e1ul domain.com, godaddy.com, who.is, whois.ru, smallseo.tools, seocheki.net, centralops.net, name.com, urlscan.io \u00e9s webchart.org). <\/p>\n

Az elavult WHOIS-szolg\u00e1ltat\u00e1sra t\u00f6rt\u00e9nt lek\u00e9rdez\u00e9sekre adott b\u00e1rmilyen adat k\u00fcld\u00e9s\u00e9nek lehet\u0151s\u00e9ge t\u00f6bbf\u00e9le t\u00e1mad\u00e1st\u00edpus kifejleszt\u00e9s\u00e9re szolg\u00e1lt. Az els\u0151 t\u00e1mad\u00e1s alapja az a feltev\u00e9s volt, hogy ha valaki tov\u00e1bbra is lek\u00e9rdez\u00e9seket k\u00fcld a r\u00e9gi szolg\u00e1ltat\u00e1sra, val\u00f3sz\u00edn\u0171leg elavult eszk\u00f6z\u00f6ket haszn\u00e1l, amelyek sebezhet\u0151s\u00e9geket tartalmaznak. <\/p>\n

P\u00e9ld\u00e1ul a phpWHOIS-ban 2015-ben felfedeztek egy CVE-2015-5243 nev\u0171 sebezhet\u0151s\u00e9get, amely lehet\u0151v\u00e9 tette a t\u00e1mad\u00f3 k\u00f3dj\u00e1nak v\u00e9grehajt\u00e1s\u00e1t a WHOIS szerver \u00e1ltal visszaadott speci\u00e1lisan form\u00e1zott adatok feldolgoz\u00e1sa sor\u00e1n. Egy m\u00e1sik p\u00e9lda az 2021-ben felfedezett CVE-2021-32749 sebezhet\u0151s\u00e9g a Fail2Ban csomagban, amely lehet\u0151v\u00e9 tette k\u00fcls\u0151 k\u00f3d v\u00e9grehajt\u00e1s\u00e1t a WHOIS szolg\u00e1ltat\u00f3 \u00e1ltal visszaadott \u00e9rv\u00e9nytelen adatok feldolgoz\u00e1sakor, amikor figyelmeztet\u00e9st alak\u00edtottak ki a blokkol\u00e1sr\u00f3l (a Fail2Ban a WHOIS-on kereszt\u00fcl megszerezte a hoszt adminisztr\u00e1tor\u00e1nak email c\u00edm\u00e9t, \u00e9s azt a mail parancs ind\u00edt\u00e1sakor a speci\u00e1lis karakterek megfelel\u0151 escapingje n\u00e9lk\u00fcl t\u00fcntette fel). <\/p>\n

A m\u00e1sodik t\u00e1mad\u00e1s azon alapult, hogy egyes hiteles\u00edt\u0151 k\u00f6zpontok lehet\u0151v\u00e9 teszik a domain birtokl\u00e1s\u00e1nak emailen kereszt\u00fcl t\u00f6rt\u00e9n\u0151 ellen\u0151rz\u00e9s\u00e9t, amely a regisztr\u00e1tor adatb\u00e1zis\u00e1ban tal\u00e1lhat\u00f3 WHOIS protokoll seg\u00edts\u00e9g\u00e9vel \u00e9rhet\u0151 el. Kider\u00fclt, hogy t\u00f6bb olyan hiteles\u00edt\u0151 k\u00f6zpont is, amely t\u00e1mogatja ezt a hiteles\u00edt\u00e9si m\u00f3dszert, tov\u00e1bbra is a r\u00e9gi WHOIS-szervert haszn\u00e1lja a «.MOBI» domain z\u00f3n\u00e1hoz. <\/p>\n

\u00cdgy az\u00e1ltal, hogy ellen\u0151rz\u00e9s al\u00e1 vonj\u00e1k a whois.dotmobiregistry.net nev\u0171 domaint, a t\u00e1mad\u00f3k visszaadhatj\u00e1k saj\u00e1t adataikat, elv\u00e9gezhetik a meger\u0151s\u00edt\u00e9st, \u00e9s megszerezhetik TLS-tan\u00fas\u00edtv\u00e1ny<\/a> b\u00e1rmely domain eset\u00e9ben a .MOBI z\u00f3n\u00e1ban. P\u00e9ld\u00e1ul a k\u00eds\u00e9rlet sor\u00e1n a kutat\u00f3k egy GlobalSign TLS-tan\u00fas\u00edtv\u00e1nyt k\u00e9rtek a microsoft.mobi domainhez, \u00e9s a visszak\u00fcld\u00f6tt hamis WHOIS-szolg\u00e1ltat\u00e1s \u00e1ltal megadott email «whois@watchTowr.com» el\u00e9rhet\u0151k\u00e9nt jelent meg a birtokl\u00e1s igazol\u00e1s\u00e1hoz sz\u00fcks\u00e9ges k\u00f3d k\u00fcld\u00e9s\u00e9hez.

\"TLS-tan\u00fas\u00edtv\u00e1nyok<\/center>
\n
Forr\u00e1s: 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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