{"id":89993,"date":"2020-07-28T01:42:19","date_gmt":"2020-07-27T23:42:19","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb"},"modified":"2020-07-28T01:42:19","modified_gmt":"2020-07-27T23:42:19","slug":"v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hr\/blog\/news\/v-hode-ataki-meow-udaleno-okolo-4000-obshhedostupnyh-bd-elasticsearch-i-mongodb","title":{"rendered":"Tijekom napada Meow uklonjeno je oko 4000 javnih baza podataka Elasticsearch i MongoDB.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Napadi nastavljaju rasti «Meow<\/a><\/noindex>«, tijekom kojih nepoznati napada\u010di uni\u0161tavaju podatke u javno dostupnim neza\u0161ti\u0107enim instalacijama Elasticsearch i MongoDB. Zabilje\u017eeni su pojedina\u010dni slu\u010dajevi brisanja (ukupno oko 3% svih \u017ertava) i za neza\u0161ti\u0107ene baze podataka na bazi Apache Cassandra, CouchDB, Redis, Hadoop i Apache ZooKeeper. Napadi se provode putem bota koji pretra\u017euje standardne mre\u017ene portove SUSTAVA. Istra\u017eivanje napada na la\u017enom honeypot-poslu\u017eitelju pokazalo je da se povezuje bot se provodi<\/a><\/noindex> vr\u0161i preko ProtonVPN-a. Ako je 22. srpnja zabilje\u017eeno oko 1000 uklonjenih baza podataka, 23. srpnja broj pogo\u0111enih sustava porastao<\/a><\/noindex> pribli\u017eno na 2500, a ju\u010der pre\u0161ao je<\/a><\/noindex> je dosegnuo 3800, ali je danas pao na 3750.<\/p>\n

Uzrok problema je otvaranje javnog pristupa bazi podataka bez odgovaraju\u0107e autentifikacije. Zbog gre\u0161ke ili nepa\u017enje, obrada zahtjeva se povezuje ne s unutarnjom adresom 127.0.0.1 (localhost), ve\u0107 sa svim mre\u017enim su\u010deljima, uklju\u010duju\u0107i vanjsko. U MongoDB-u to pona\u0161anje olak\u0161avaju primjeri postavki koje se nude po defaultu, dok u Elasticsearchu do izlaska 6.8<\/a><\/noindex> u besplatnoj verziji nije bila podr\u017eavana sredstva za ograni\u010davanje pristupa.<\/p>\n

Zanimljivo je povijest<\/a><\/noindex> s VPN-provajderom UFO, kod kojeg je otkrivena javno dostupna baza Elasticsearch, veli\u010dine 894GB. Provajder se predstavljao kao onaj koji brine o privatnosti korisnika i ne vodi dnevnik. Suprotno tvrdnji, u otkrivenoj bazi su se nalazili dnevni\u010dki podaci koji uklju\u010duju informacije o IP adresama, vezivanju sesija za vrijeme, oznakama o lokaciji korisnika, informacijama o operativnom sustavu i ure\u0111aju korisnika, kao i popisima domena za inserciju oglasa u neza\u0161ti\u0107eni HTTP promet. \u0160tovi\u0161e, u bazi podataka su prona\u0111ene lozinke u otvorenom obliku i sesijski klju\u010devi koji omogu\u0107uju de\u0161ifriranje presretnutih sesija.<\/p>\n

Davatelj UFO obavije\u0161ten je o problemu 1. srpnja, no dva tjedna poruka nije bila odgovorena, a 14. srpnja poslan je novi zahtjev hosting davatelju, nakon \u010dega je 15. srpnja baza podataka za\u0161ti\u0107ena. 20. srpnja ta je baza podataka ponovno postala javno dostupna na drugom IP-u. U nekoliko sati gotovo svi podaci u bazi podataka su izbrisani. Istra\u017eivanje ovog brisanja pokazalo je da je povezano s masivnim napadom nazvanim Meow prema indeksima ostavljenim u bazi podataka nakon brisanja. Pretra\u017eivanje putem servisa Shodan pokazala<\/a><\/noindex>, a me\u0111u \u017ertvama brisanja na\u0161lo se jo\u0161 nekoliko stotina poslu\u017eitelja. Trenutno broj izbrisanih baza podataka pribli\u017eava se brojci od 4000.<\/p>\n

<\/a><\/noindex><\/p>\n

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

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