{"id":34976,"date":"2019-10-31T22:01:37","date_gmt":"2019-10-31T19:01:37","guid":{"rendered":"https:\/\/prohoster.info\/blog\/okolo-5-5-vyyavlyaemyh-uyazvimostej-ispolzuyutsya-dlya-osushhestvleniya-atak\/"},"modified":"2019-10-31T22:01:37","modified_gmt":"2019-10-31T19:01:37","slug":"okolo-5-5-vyyavlyaemyh-uyazvimostej-ispolzuyutsya-dlya-osushhestvleniya-atak","status":"publish","type":"post","link":"https:\/\/prohoster.info\/hu\/blog\/news\/okolo-5-5-vyyavlyaemyh-uyazvimostej-ispolzuyutsya-dlya-osushhestvleniya-atak","title":{"rendered":"A felfedezett sebezhet\u0151s\u00e9gek k\u00f6r\u00fclbel\u00fcl 5,5%-\u00e1t haszn\u00e1lj\u00e1k t\u00e1mad\u00e1sok v\u00e9grehajt\u00e1s\u00e1ra.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

A Virginiai M\u0171szaki Egyetem \u00e9s a Cyentia valamint a RAND c\u00e9g kutat\u00f3csoportja kiadta<\/a><\/noindex> az elt\u00e9r\u0151 sebezhet\u0151s\u00e9gjav\u00edt\u00f3 strat\u00e9gi\u00e1k kock\u00e1zatelemz\u00e9si eredm\u00e9nyeit. 2009 \u00e9s 2018 k\u00f6z\u00f6tt felfedezett 76 000 sebezhet\u0151s\u00e9g vizsg\u00e1lata sor\u00e1n kider\u00fclt, hogy ezek k\u00f6z\u00fcl csak 4183 (5,5%) ker\u00fclt felhaszn\u00e1l\u00e1sra val\u00f3s t\u00e1mad\u00e1sok sor\u00e1n. Ez az \u00e9rt\u00e9k \u00f6tsz\u00f6r\u00f6se a kor\u00e1bban k\u00f6zz\u00e9tett el\u0151rejelz\u00e9seknek, amelyek szerint a kihaszn\u00e1lt probl\u00e9m\u00e1k sz\u00e1ma k\u00f6r\u00fclbel\u00fcl 1,4% volt.<\/p>\n

Nem tal\u00e1ltak \u00f6sszef\u00fcgg\u00e9st a nyilv\u00e1nos protot\u00edpusok k\u00f6zz\u00e9t\u00e9tele \u00e9s a sebezhet\u0151s\u00e9gek kihaszn\u00e1l\u00e1si k\u00eds\u00e9rletei k\u00f6z\u00f6tt. Az \u00f6sszes ismert sebezhet\u0151s\u00e9g kihaszn\u00e1l\u00e1s\u00e1nak csak a fel\u00e9ben volt nyilv\u00e1nos protot\u00edpus. A protot\u00edpus hi\u00e1nya nem \u00e1ll\u00edtja meg a t\u00e1mad\u00f3kat, akik sz\u00fcks\u00e9g eset\u00e9n saj\u00e1t maguk k\u00e9sz\u00edtik el az exploitokat.<\/p>\n

M\u00e1s meg\u00e1llap\u00edt\u00e1sok k\u00f6z\u00f6tt kiemelend\u0151, hogy f\u0151k\u00e9nt a magas vesz\u00e9lyess\u00e9gi oszt\u00e1ly\u00fa, CVSS szerint magas kock\u00e1zat\u00fa sebezhet\u0151s\u00e9geket haszn\u00e1lnak ki. A t\u00e1mad\u00e1sok k\u00f6zel fel\u00e9ben olyan sebezhet\u0151s\u00e9geket alkalmaztak, amelyek kock\u00e1zati szintje legal\u00e1bb 9 volt. <\/p>\n

A vizsg\u00e1lt id\u0151szakban k\u00f6zz\u00e9tett exploit protot\u00edpusok \u00f6sszesen 9726-ra tehet\u0151k. A kutat\u00e1sban haszn\u00e1lt exploit adatokat az al\u00e1bbi forr\u00e1sokb\u00f3l szerezt\u00e9k be:
\nExploit DB, Metasploit, D2 Security Elliot Kit, Canvas Exploitation Framework, Contagio, Reversing Labs \u00e9s Secureworks CTU gy\u0171jtem\u00e9nyei.
\nA sebezhet\u0151s\u00e9gekr\u0151l sz\u00f3l\u00f3 inform\u00e1ci\u00f3 a k\u00f6vetkez\u0151 adatb\u00e1zisb\u00f3l sz\u00e1rmazik: NIST NVD<\/a><\/noindex> (National Vulnerability Database). Az exploitat\u00e1latokra vonatkoz\u00f3 inform\u00e1ci\u00f3k a FortiGuard Labs, a SANS Internet Storm Center, a Secureworks CTU, az Alienvault OSSIM \u00e9s a ReversingLabs adatai alapj\u00e1n ker\u00fcltek \u00f6sszegz\u00e9sre.<\/p>\n

A kutat\u00e1s c\u00e9lja az volt, hogy meghat\u00e1rozza az optim\u00e1lis egyens\u00falyt a friss\u00edt\u00e9sek alkalmaz\u00e1sa \u00e9s a legvesz\u00e9lyesebb probl\u00e9m\u00e1k kijav\u00edt\u00e1sa k\u00f6z\u00f6tt, amikor b\u00e1rmilyen sebezhet\u0151s\u00e9get \u00e9szlelnek. Az els\u0151 esetben magas v\u00e9delmi hat\u00e9konys\u00e1got biztos\u00edtanak, de nagyobb er\u0151forr\u00e1sokat ig\u00e9nyel az infrastrukt\u00fara fenntart\u00e1sa, amelyeket f\u0151k\u00e9nt jelent\u00e9ktelen probl\u00e9m\u00e1k jav\u00edt\u00e1s\u00e1ra ford\u00edtanak. A m\u00e1sodik esetben nagy a kock\u00e1zata annak, hogy kihagyunk egy sebezhet\u0151s\u00e9get, amelyet t\u00e1mad\u00e1sra lehetne haszn\u00e1lni. A kutat\u00e1s azt mutatta, hogy a sebezhet\u0151s\u00e9g kijav\u00edt\u00e1s\u00e1ra szolg\u00e1l\u00f3 friss\u00edt\u00e9sek telep\u00edt\u00e9s\u00e9nek d\u00f6nt\u00e9sekor nem szabad t\u00e1maszkodni a k\u00f6zz\u00e9tett exploit protot\u00edpus hi\u00e1ny\u00e1ra, \u00e9s a kihaszn\u00e1l\u00e1s es\u00e9lye k\u00f6zvetlen\u00fcl a sebezhet\u0151s\u00e9g vesz\u00e9lyess\u00e9gi szintj\u00e9t\u0151l f\u00fcgg.<\/p>\n

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

Forr\u00e1s: opennet.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0413\u0440\u0443\u043f\u043f\u0430 \u0438\u0441\u0441\u043b\u0435\u0434\u043e\u0432\u0430\u0442\u0435\u043b\u0435\u0439 \u0438\u0437 \u041f\u043e\u043b\u0438\u0442\u0435\u0445\u043d\u0438\u0447\u0435\u0441\u043a\u043e\u0433\u043e \u0443\u043d\u0438\u0432\u0435\u0440\u0441\u0438\u0442\u0435\u0442\u0430 \u0412\u0438\u0440\u0433\u0438\u043d\u0438\u0438, \u0430 \u0442\u0430\u043a\u0436\u0435 \u043a\u043e\u043c\u043f\u0430\u043d\u0438\u0439 Cyentia \u0438 RAND, \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043b\u0430 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u044b \u0430\u043d\u0430\u043b\u0438\u0437\u0430 \u0440\u0438\u0441\u043a\u043e\u0432 \u043f\u0440\u0438 \u043f\u0440\u0438\u043c\u0435\u043d\u0435\u043d\u0438\u0438 \u0440\u0430\u0437\u043b\u0438\u0447\u043d\u044b\u0445 \u0441\u0442\u0440\u0430\u0442\u0435\u0433\u0438\u0439 \u0438\u0441\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439. \u0418\u0437\u0443\u0447\u0438\u0432 76 \u0442\u044b\u0441\u044f\u0447 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0435\u0439, \u043d\u0430\u0439\u0434\u0435\u043d\u043d\u044b\u0445 \u0441 2009 \u043f\u043e 2018 \u0433\u043e\u0434, \u0431\u044b\u043b\u043e \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u043e, \u0447\u0442\u043e \u0442\u043e\u043b\u044c\u043a\u043e 4183 \u0438\u0437 \u043d\u0438\u0445 (5.5%) \u043f\u0440\u0438\u043c\u0435\u043d\u044f\u043b\u0438\u0441\u044c \u0434\u043b\u044f \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u043b\u0435\u043d\u0438\u044f \u0440\u0435\u0430\u043b\u044c\u043d\u044b\u0445 \u0430\u0442\u0430\u043a. \u041f\u043e\u043b\u0443\u0447\u0435\u043d\u043d\u044b\u0439 \u043f\u043e\u043a\u0430\u0437\u0430\u0442\u0435\u043b\u044c \u0432 \u043f\u044f\u0442\u044c \u0440\u0430\u0437 \u043f\u0440\u0435\u0432\u044b\u0448\u0430\u0435\u0442 \u0440\u0430\u043d\u0435\u0435 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