{"id":8375,"date":"2022-04-10T15:42:04","date_gmt":"2022-04-10T12:42:04","guid":{"rendered":"https:\/\/kutaybilen.com.tr\/?p=8375"},"modified":"2022-04-10T15:42:04","modified_gmt":"2022-04-10T12:42:04","slug":"bluetoothda-yeni-bir-guvenlik-acigi-bulundu","status":"publish","type":"post","link":"https:\/\/kutaybilen.com.tr\/?p=8375","title":{"rendered":"Bluetooth’da Yeni Bir G\u00fcvenlik A\u00e7\u0131\u011f\u0131 Bulundu"},"content":{"rendered":"

Bluetooth standartlar\u0131nda yeni bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131 ke\u015ffedildi. Bu g\u00fcvenlik a\u00e7\u0131\u011f\u0131, bilgisayar korsanlar\u0131 taraf\u0131ndan hayli zekice kullan\u0131l\u0131yor. Bilgisayar korsanlar\u0131, direkt \u015fifrelemeyi k\u0131rmak yerine\u00a0bir Bluetooth ayg\u0131t\u0131n\u0131 birinci ba\u015fta daha zay\u0131f \u015fifreleme kullanmaya zorlayarak k\u0131r\u0131lmas\u0131n\u0131 sa\u011fl\u0131yor. \u0130ki Bluetooth ayg\u0131t\u0131 her ba\u011fland\u0131\u011f\u0131nda, yeni bir \u015fifreleme anahtar\u0131 olu\u015fturuyorlar.<\/p>\n

Bir hacker, bu suram s\u00fcreci ortas\u0131na girerse\u00a0iki ayg\u0131t\u0131 izaf\u00ee olarak az say\u0131da karakter i\u00e7eren bir \u015fifreleme anahtar\u0131na oturtmaya zorlayabilir. Sald\u0131rgan\u0131n kesin parolay\u0131 bulmak i\u00e7in ayg\u0131tlardan birine kar\u015f\u0131 hayli \u015fiddetli bir ak\u0131n ger\u00e7ekle\u015ftirmesi gerekir\u00a0ancak bu atak, ortadaki kusur nedeniyle fazla \u015fiddetli olmadan da ger\u00e7ekle\u015ftirilebiliyor.<\/p>\n

Endi\u015felenmenize \u015fu an i\u00e7in gerek yok:<\/b><\/p>\n

<\/p>\n

G\u00f6r\u00fcn\u00fc\u015fe g\u00f6re\u00a0Bluetooth ayg\u0131tlar\u0131n\u0131 kullanan bir\u00e7ok insan\u0131n endi\u015felenmesine gerek yok. Bu sald\u0131r\u0131y\u0131 ger\u00e7ekle\u015ftirmek i\u00e7in\u00a0Bluetooth ayg\u0131tlar\u0131n\u0131n konta\u011f\u0131 s\u0131ras\u0131nda etrafta bir bilgisayar korsan\u0131n\u0131n bulunmas\u0131, \u015fifreleme anahtar\u0131 uzunlu\u011funu belirlerken her bir ayg\u0131t\u0131n birinci iletimini engellemesi ve kendi iletilerini bu temas an\u0131nda yay\u0131nlamas\u0131 gerekiyor. Bu olay, elbette \u00e7ok k\u0131sa bir m\u00fcddette ger\u00e7ekle\u015fmeli. Ayr\u0131ca\u00a0bilgisayar korsan\u0131, her s\u00fcre\u00e7te tekrardan a\u011fa girmek zorunda.<\/p>\n

Yaln\u0131zca eski Bluetooth s\u00fcr\u00fcm\u00fcn\u00fc kullanan ayg\u0131tlar ele ge\u00e7irilebiliyor:<\/b><\/p>\n

<\/p>\n

Bahsi ge\u00e7en bu kusur, yaln\u0131zca kl\u00e2sik Bluetooth teknolojisine sahip ayg\u0131tlarda bulunuyor. Hatta kimi Bluetooth\u00a0cihazlar\u0131n buna kar\u015f\u0131 m\u00fcdafaas\u0131 bile var (hard-coded olarak \u015fifrelemeye sahiplerse). Bluetooth\u2019un ard\u0131ndaki kurulu\u015f, maalesef bu a\u00e7\u0131\u011f\u0131 kapatam\u0131yor\u00a0ancak g\u00fcvenlik a\u00e7\u0131\u011f\u0131 bulunan ayg\u0131tlara asgar\u00ee \u015fifre uzunlu\u011fu uygulanmas\u0131n\u0131 \u00f6nererek ileriye d\u00f6n\u00fck m\u00fcdafaa sa\u011flamaya \u00e7al\u0131\u015f\u0131yor.<\/p>\n

\u015eimdilik, g\u00fcvenlik a\u00e7\u0131\u011f\u0131n\u0131n \u201ck\u00f6t\u00fc ama\u00e7l\u0131\u201d olarak kullan\u0131ld\u0131\u011f\u0131na dair hi\u00e7bir ispat bulunamad\u0131. Bu g\u00fcvenlik a\u00e7\u0131\u011f\u0131, USENIX G\u00fcvenlik Sempozyumu\u2019nda bildirilerini sunan bir k\u00fcme ara\u015ft\u0131rmac\u0131 taraf\u0131ndan ke\u015ffedildi.<\/p>\n

<\/div>\n
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<\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Bluetooth standartlar\u0131nda yeni bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131 ke\u015ffedildi. Bu g\u00fcvenlik a\u00e7\u0131\u011f\u0131, bilgisayar korsanlar\u0131 taraf\u0131ndan hayli zekice kullan\u0131l\u0131yor …<\/p>\n","protected":false},"author":1,"featured_media":8376,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[854],"tags":[1092,1533,1911],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/8375"}],"collection":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8375"}],"version-history":[{"count":1,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/8375\/revisions"}],"predecessor-version":[{"id":8377,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/posts\/8375\/revisions\/8377"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=\/wp\/v2\/media\/8376"}],"wp:attachment":[{"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8375"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8375"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/kutaybilen.com.tr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8375"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}