Mo\u017enost pos\u00edlat jak\u00e9koli \u00fadaje v reakci na dotaz na starou WHOIS slu\u017ebu dom\u00e9ny '.MOBI' byla vyu\u017eita k v\u00fdvoji n\u011bkolika typ\u016f \u00fatok\u016f na odes\u00edlatele dotaz\u016f. Prvn\u00ed varianta \u00fatoku vych\u00e1zela z p\u0159edpokladu, \u017ee pokud n\u011bkdo st\u00e1le pos\u00edl\u00e1 dotazy na d\u00e1vno nahrazenou slu\u017ebu, pravd\u011bpodobn\u011b to d\u011bl\u00e1 s pomoc\u00ed zastaral\u00fdch n\u00e1stroj\u016f, kter\u00e9 obsahuj\u00ed zranitelnosti. <\/p>\n
Nap\u0159\u00edklad v phpWHOIS byla v roce 2015 odhalena zranitelnost CVE-2015-5243, kter\u00e1 umo\u017e\u0148ovala dosa\u017een\u00ed proveden\u00ed k\u00f3du \u00fato\u010dn\u00edka p\u0159i anal\u00fdze speci\u00e1ln\u011b upraven\u00fdch dat vr\u00e1cen\u00fdch serverem WHOIS. Dal\u0161\u00edm p\u0159\u00edkladem je odhalen\u00e1 v roce 2021 zranitelnost CVE-2021-32749 v bal\u00ed\u010dku Fail2Ban, kter\u00e1 umo\u017e\u0148uje prov\u00e9st extern\u00ed k\u00f3d p\u0159i vracen\u00ed neplatn\u00fdch dat WHOIS slu\u017ebou, kter\u00e1 byla pou\u017e\u00edv\u00e1na b\u011bhem procesu generov\u00e1n\u00ed upozorn\u011bn\u00ed na blokaci (Fail2Ban identifikoval prost\u0159ednictv\u00edm WHOIS email administr\u00e1tora hostitele a uv\u00e1d\u011bl jej p\u0159i spu\u0161t\u011bn\u00ed p\u0159\u00edkazu mail bez \u0159\u00e1dn\u00e9ho escapov\u00e1n\u00ed speci\u00e1ln\u00edch znak\u016f). <\/p>\n
Druh\u00fd \u00fatok vych\u00e1z\u00ed z toho, \u017ee n\u011bkter\u00e9 certifika\u010dn\u00ed autority poskytuj\u00ed mo\u017enost ov\u011b\u0159it vlastnictv\u00ed dom\u00e9ny prost\u0159ednictv\u00edm e-mailu uveden\u00e9ho v datab\u00e1zi registr\u00e1tora dom\u00e9ny, kter\u00e1 je dostupn\u00e1 p\u0159es protokol WHOIS. Uk\u00e1zalo se, \u017ee n\u011bkolik certifika\u010dn\u00edch autorit s podporou takov\u00e9 metody ov\u011b\u0159en\u00ed pokra\u010duje v pou\u017e\u00edv\u00e1n\u00ed star\u00e9ho WHOIS serveru pro dom\u00e9novou z\u00f3nu '.MOBI'. <\/p>\n
T\u00edmto zp\u016fsobem, z\u00edsk\u00e1n\u00edm kontroly nad n\u00e1zvem whois.dotmobiregistry.net, mohou \u00fato\u010dn\u00edci vr\u00e1tit sv\u00e9 \u00fadaje, prov\u00e9st ov\u011b\u0159en\u00ed a z\u00edskat TLS certifik\u00e1t<\/a> pro jakoukoli dom\u00e9nu v z\u00f3n\u011b .MOBI. Nap\u0159\u00edklad b\u011bhem experimentu v\u00fdzkumn\u00edci po\u017e\u00e1dali registr\u00e1tora GlobalSign o TLS certifik\u00e1t pro dom\u00e9nu microsoft.mobi a e-mail vr\u00e1cen\u00fd fiktivn\u00ed WHOIS slu\u017ebou 'whois@watchTowr.com' byl zobrazen v rozhran\u00ed jako dostupn\u00fd pro odesl\u00e1n\u00ed k\u00f3du potvrzen\u00ed vlastnictv\u00ed dom\u00e9ny. \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 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Zdroj: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"