{"id":476809,"date":"2023-08-09T07:36:15","date_gmt":"2023-08-09T07:36:15","guid":{"rendered":""},"modified":"2023-09-05T11:13:28","modified_gmt":"2023-09-05T11:13:28","slug":"dictionary-attack","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/dictionary-attack\/","title":{"rendered":"S\u00f6zl\u00fck sald\u0131r\u0131s\u0131"},"content":{"rendered":"

S\u00f6zl\u00fck sald\u0131r\u0131lar\u0131, siber su\u00e7lular\u0131n \u015fifreleri k\u0131rarak sistemlere ve verilere yetkisiz eri\u015fim sa\u011flamak i\u00e7in kulland\u0131klar\u0131 en yayg\u0131n y\u00f6ntemlerden biridir. \u015eifreyi ortaya \u00e7\u0131karmak amac\u0131yla hedeflenen bir kullan\u0131c\u0131 hesab\u0131na veya sisteme y\u00f6nelik bir s\u00f6zl\u00fc\u011fe t\u00fcm kelimelerin sistematik olarak girilmesini i\u00e7erirler.<\/p>\n

S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131n\u0131n Tarihi ve K\u00f6kenleri<\/h2>\n

S\u00f6zl\u00fck sald\u0131r\u0131s\u0131ndan ilk kaydedilen s\u00f6z, ki\u015fisel bilgisayarlar\u0131n y\u00fckseli\u015fe ge\u00e7ti\u011fi 1980'lerin ba\u015flar\u0131na kadar uzan\u0131yor. Eri\u015fim i\u00e7in parola gerektiren bilgisayar sistemlerinin ortaya \u00e7\u0131k\u0131\u015f\u0131yla birlikte, parolalar\u0131 tahmin etmek i\u00e7in s\u00f6zl\u00fck tabanl\u0131 bir yakla\u015f\u0131m kullanma fikri potansiyel sald\u0131rganlar i\u00e7in sezgisel bir \u00e7\u00f6z\u00fcm haline geldi. Bu y\u00f6ntem, genellikle yayg\u0131n kullan\u0131lan s\u00f6zc\u00fckleri veya bunlar\u0131n basit varyasyonlar\u0131n\u0131 i\u00e7eren, k\u00f6t\u00fc se\u00e7ilmi\u015f parolalara kar\u015f\u0131 etkili olmas\u0131 nedeniyle \u00fcn kazand\u0131.<\/p>\n

S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131n\u0131n Ayr\u0131nt\u0131l\u0131 A\u00e7\u0131klamas\u0131<\/h2>\n

S\u00f6zl\u00fck sald\u0131r\u0131s\u0131, en temel anlam\u0131yla, parola korumal\u0131 bir sistemin bilgisayar g\u00fcvenli\u011fini, parolay\u0131 metodik olarak tahmin ederek ihlal etmek i\u00e7in kullan\u0131lan bir y\u00f6ntemdir. Sald\u0131rgan, standart bir \u0130ngilizce s\u00f6zl\u00fc\u011f\u00fcnden ortak parolalar, ifadeler ve di\u011fer olas\u0131 tahminleri i\u00e7eren daha karma\u015f\u0131k ve \u00f6zel listelere kadar de\u011fi\u015febilen, s\u00f6zl\u00fckten \u00f6nceden tan\u0131mlanm\u0131\u015f bir s\u00f6zc\u00fck listesi kullan\u0131r.<\/p>\n

Sald\u0131rgan, sistemin giri\u015f istemine kelimeleri tek tek giren yaz\u0131l\u0131mla s\u00fcreci otomatikle\u015ftirir. Kullan\u0131c\u0131n\u0131n \u015fifresi sald\u0131rgan\u0131n s\u00f6zl\u00fc\u011f\u00fcn\u00fcn bir par\u00e7as\u0131ysa sald\u0131r\u0131 sonu\u00e7ta ba\u015far\u0131l\u0131 olacakt\u0131r. Bu sald\u0131r\u0131lar \u00f6zellikle giri\u015f denemelerinin say\u0131s\u0131n\u0131 s\u0131n\u0131rlamayan sistemlere kar\u015f\u0131 etkilidir.<\/p>\n

S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131n\u0131n \u0130\u00e7 Mekani\u011fi<\/h2>\n

S\u00f6zl\u00fck sald\u0131r\u0131s\u0131, sald\u0131rgan\u0131n genellikle 'g\u00f6lge dosya' olarak adland\u0131r\u0131lan sistemin kullan\u0131c\u0131 hesab\u0131 dosyas\u0131n\u0131n bir kopyas\u0131n\u0131 ele ge\u00e7irmesiyle ba\u015flar. G\u00f6lge dosyas\u0131, kullan\u0131c\u0131n\u0131n parolalar\u0131n\u0131n karma s\u00fcr\u00fcmlerini i\u00e7erir. Sald\u0131rgan daha sonra olas\u0131 parolalar\u0131n karma hale getirilmi\u015f versiyonlar\u0131n\u0131n bir 's\u00f6zl\u00fc\u011f\u00fcn\u00fc' olu\u015fturur ve bunlar\u0131 g\u00f6lge dosyadaki karma hale getirilmi\u015f parolalarla kar\u015f\u0131la\u015ft\u0131r\u0131r. Bir e\u015fle\u015fme bulunursa \u015fifre etkili bir \u015fekilde k\u0131r\u0131lm\u0131\u015ft\u0131r.<\/p>\n

S\u00f6zl\u00fck sald\u0131r\u0131s\u0131n\u0131n ba\u015far\u0131s\u0131 b\u00fcy\u00fck \u00f6l\u00e7\u00fcde kullan\u0131lan s\u00f6zl\u00fc\u011f\u00fcn boyutuna, kapsaml\u0131l\u0131\u011f\u0131na ve hedeflenen parolan\u0131n karma\u015f\u0131kl\u0131\u011f\u0131na ba\u011fl\u0131d\u0131r. Parola ne kadar basit ve yayg\u0131n olursa, bu y\u00f6ntemle k\u0131r\u0131lma olas\u0131l\u0131\u011f\u0131 da o kadar artar.<\/p>\n

S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131n\u0131n Temel \u00d6zellikleri<\/h2>\n
    \n
  1. H\u0131z:<\/strong> S\u00f6zl\u00fck sald\u0131r\u0131lar\u0131, yaln\u0131zca olas\u0131 olas\u0131l\u0131klar\u0131 denedi\u011finden, olas\u0131 her karakter kombinasyonunu deneyen kaba kuvvet sald\u0131r\u0131lar\u0131ndan \u00e7ok daha h\u0131zl\u0131d\u0131r.<\/li>\n
  2. Yeterlik:<\/strong> Pek \u00e7ok ki\u015finin ortak, hat\u0131rlanmas\u0131 kolay \u015fifreler kullanmas\u0131 ger\u00e7e\u011finden yararlan\u0131yorlar.<\/li>\n
  3. S\u0131n\u0131rlamalar:<\/strong> Karma\u015f\u0131k \u015fifrelere, \u00f6zellikle de harf, say\u0131 ve \u00f6zel karakterlerin kar\u0131\u015f\u0131m\u0131n\u0131 kullanan \u015fifrelere kar\u015f\u0131 etkinlikleri \u00f6nemli \u00f6l\u00e7\u00fcde azal\u0131r.<\/li>\n<\/ol>\n

    S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131 T\u00fcrleri<\/h2>\n

    Temel olarak iki t\u00fcr s\u00f6zl\u00fck sald\u0131r\u0131s\u0131 vard\u0131r:<\/p>\n

      \n
    1. Standart S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131:<\/strong> Bu, \u015fifre alan\u0131na kar\u015f\u0131 denenecek kelimelerin listesini i\u00e7eren basit bir kelime listesi dosyas\u0131 kullan\u0131r.<\/li>\n
    2. Hibrit S\u00f6zl\u00fck Sald\u0131r\u0131s\u0131:<\/strong> Bu, kelime listesi dosyas\u0131n\u0131n bir kural dosyas\u0131yla birle\u015ftirildi\u011fi daha geli\u015fmi\u015f bir sald\u0131r\u0131 t\u00fcr\u00fcd\u00fcr. Kurallar dosyas\u0131, kelime listesindeki kelimelere dayal\u0131 olarak ek tahminler olu\u015fturmak i\u00e7in kullan\u0131lan bir dizi kural\u0131 tan\u0131mlar.<\/li>\n<\/ol>\n

      S\u00f6zl\u00fck Sald\u0131r\u0131lar\u0131n\u0131n ve \u0130lgili Zorluklar\u0131n Kullan\u0131m\u0131<\/h2>\n

      S\u00f6zl\u00fck sald\u0131r\u0131lar\u0131 \u00f6ncelikle sistemlere yetkisiz eri\u015fim sa\u011flamak amac\u0131yla \u015fifreleri k\u0131rmak i\u00e7in kullan\u0131l\u0131r. \u00d6zellikle bir kurulu\u015fun kullan\u0131c\u0131lar\u0131n\u0131n zay\u0131f veya yayg\u0131n parolalar kulland\u0131\u011f\u0131 durumlarda, bilgi g\u00fcvenli\u011fi a\u00e7\u0131s\u0131ndan \u00f6nemli bir zorluk te\u015fkil ederler.<\/p>\n

      Bu sorunun en \u00f6nemli \u00e7\u00f6z\u00fcmlerinden biri, belirli say\u0131da ba\u015far\u0131s\u0131z denemeden sonra hesap kilitleme veya gecikme uygulanmas\u0131d\u0131r. Bu, bir sald\u0131rgan\u0131n parolay\u0131 tahmin etme giri\u015fiminde bulunma h\u0131z\u0131n\u0131 azalt\u0131r. Ancak bu \u00e7\u00f6z\u00fcm, dikkatli y\u00f6netilmedi\u011fi takdirde potansiyel bir Hizmet Reddi (DoS) sald\u0131r\u0131 vekt\u00f6r\u00fc de olu\u015fturabilir.<\/p>\n

      Di\u011fer bir \u00e7\u00f6z\u00fcm ise, kullan\u0131c\u0131lar\u0131 bir s\u00f6zl\u00fck sald\u0131r\u0131s\u0131 taraf\u0131ndan tahmin edilme olas\u0131l\u0131\u011f\u0131 daha d\u00fc\u015f\u00fck olan \u015fifreler olu\u015fturmaya zorlayan \u015fifre karma\u015f\u0131kl\u0131\u011f\u0131 kurallar\u0131n\u0131n kullan\u0131lmas\u0131d\u0131r. Ancak bu durum bazen kullan\u0131c\u0131lar\u0131n hat\u0131rlanmas\u0131 zor karma\u015f\u0131k \u015fifreler olu\u015fturmas\u0131na ve yeniden kullanmas\u0131na neden olarak potansiyel g\u00fcvenlik risklerine yol a\u00e7abilir.<\/p>\n

      S\u00f6zl\u00fck Sald\u0131r\u0131lar\u0131 ve Benzer Terimler<\/h2>\n

      S\u00f6zl\u00fck sald\u0131r\u0131s\u0131n\u0131n di\u011fer benzer sald\u0131r\u0131 y\u00f6ntemleriyle kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131:<\/p>\n\n\n\n\n\n\n\n
      Sald\u0131r\u0131 Y\u00f6ntemi<\/th>\nTan\u0131m<\/th>\nKar\u015f\u0131la\u015ft\u0131rmak<\/th>\n<\/tr>\n<\/thead>\n
      Kaba Kuvvet Sald\u0131r\u0131s\u0131<\/td>\nDo\u011fru \u015fifre bulunana kadar m\u00fcmk\u00fcn olan her karakter kombinasyonunu dener<\/td>\nS\u00f6zl\u00fck sald\u0131r\u0131lar\u0131ndan daha yava\u015f ama daha kapsaml\u0131.<\/td>\n<\/tr>\n
      G\u00f6kku\u015fa\u011f\u0131 Masa Sald\u0131r\u0131s\u0131<\/td>\nParola karmalar\u0131n\u0131 k\u0131rmak amac\u0131yla kriptografik karma i\u015flevlerini tersine \u00e7evirmek i\u00e7in \u00f6nceden hesaplanm\u0131\u015f tablolar\u0131 kullan\u0131r<\/td>\nKaba kuvvet sald\u0131r\u0131lar\u0131ndan daha h\u0131zl\u0131d\u0131r ancak tablolar i\u00e7in \u00f6nemli miktarda depolama alan\u0131 gerektirir.<\/td>\n<\/tr>\n
      Kimlik Bilgisi Doldurma<\/td>\nYetkisiz eri\u015fim elde etmek i\u00e7in \u00e7al\u0131nan veya s\u0131zd\u0131r\u0131lan kimlik bilgilerini kullan\u0131r<\/td>\nTeknik olarak bir \u015fifre k\u0131rma bi\u00e7imi de\u011fil, daha \u00f6nce ihlal edilen verilerden yararlanan bir t\u00fcr sald\u0131r\u0131d\u0131r.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Gelecek Perspektifleri ve Teknolojiler<\/h2>\n

      Siber tehditler geli\u015ftik\u00e7e bunlara kar\u015f\u0131 koyma y\u00f6ntemleri de geli\u015fiyor. S\u00f6zl\u00fck sald\u0131r\u0131lar\u0131na kar\u015f\u0131 m\u00fccadelede ortaya \u00e7\u0131kan trendlerden biri, bu t\u00fcr sald\u0131r\u0131lar\u0131 tahmin etmek ve \u00f6nlemek i\u00e7in makine \u00f6\u011freniminin kullan\u0131lmas\u0131d\u0131r. \u00d6rne\u011fin, bir algoritma, kullan\u0131c\u0131 davran\u0131\u015f\u0131ndaki kal\u0131plar\u0131 inceleyerek, bir s\u00f6zl\u00fck sald\u0131r\u0131s\u0131n\u0131n i\u015faretlerini ba\u015far\u0131l\u0131 olmadan \u00f6nce potansiyel olarak tespit edebilir ve \u00f6nleyici eylemde bulunabilir.<\/p>\n

      Geli\u015fen bir di\u011fer teknoloji ise kimlik do\u011frulama i\u00e7in parmak izi veya y\u00fcz tan\u0131ma gibi biyometrik verilerin kullan\u0131lmas\u0131d\u0131r; bu, parolalara dayanmad\u0131\u011f\u0131ndan s\u00f6zl\u00fck sald\u0131r\u0131lar\u0131 riskini \u00f6nemli \u00f6l\u00e7\u00fcde azaltabilir.<\/p>\n

      Proxy Sunucular\u0131 ve S\u00f6zl\u00fck Sald\u0131r\u0131lar\u0131<\/h2>\n

      Bir proxy sunucusu potansiyel olarak s\u00f6zl\u00fck sald\u0131r\u0131lar\u0131na kar\u015f\u0131 korunmaya yard\u0131mc\u0131 olabilir. Bunun bir yolu, hedeflenen sunucunun veya sistemin IP adresini gizlemektir. Bu, sald\u0131rganlar\u0131n sistemi bulmas\u0131n\u0131 ve do\u011frudan sisteme sald\u0131rmas\u0131n\u0131 \u00f6nlemeye yard\u0131mc\u0131 olabilir.<\/p>\n

      Ayr\u0131ca, belirli proxy sunucular\u0131, tekrarlanan oturum a\u00e7ma giri\u015fimlerini yava\u015flatabilen veya engelleyebilen ve s\u00f6zl\u00fck sald\u0131r\u0131lar\u0131n\u0131 etkili bir \u015fekilde \u00f6nleyebilen h\u0131z s\u0131n\u0131rlama gibi ek g\u00fcvenlik \u00f6zellikleri sunar.<\/p>\n

      \u0130lgili Ba\u011flant\u0131lar<\/h2>\n

      S\u00f6zl\u00fck sald\u0131r\u0131lar\u0131 ve bunlara kar\u015f\u0131 \u00f6nlemler hakk\u0131nda daha fazla bilgi i\u00e7in a\u015fa\u011f\u0131daki kaynaklar\u0131 ziyaret edebilirsiniz:<\/p>\n

        \n
      1. Parola Depolamaya \u0130li\u015fkin OWASP K\u0131lavuzu<\/a><\/li>\n
      2. SANS Enstit\u00fcs\u00fc InfoSec Okuma Odas\u0131: \u015eifre Sald\u0131r\u0131lar\u0131na Kar\u015f\u0131 Savunma<\/a><\/li>\n
      3. RFC 2617 \u2013 HTTP Kimlik Do\u011frulamas\u0131<\/a><\/li>\n<\/ol>\n

        Unutmay\u0131n, bir s\u00f6zl\u00fck sald\u0131r\u0131s\u0131n\u0131n kurban\u0131 olmaktan ka\u00e7\u0131nman\u0131n anahtar\u0131, karma\u015f\u0131k, benzersiz parolalar kullanmak da dahil olmak \u00fczere iyi bir parola hijyeni sa\u011flamak ve g\u00fcvenli proxy sunucular\u0131 ve \u00e7ok fakt\u00f6rl\u00fc kimlik do\u011frulama gibi mevcut koruyucu teknolojileri kullanmakt\u0131r.<\/p>","protected":false},"featured_media":468214,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476809","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about Dictionary Attack: An Overview<\/mark>","faq_items":[{"question":"What is a dictionary attack?","answer":"

        A dictionary attack is a method used by cyber criminals to crack passwords and gain unauthorized access to systems. It involves systematically entering all the words from a predefined list or 'dictionary' against a targeted user account or system in an attempt to uncover the password.<\/p>"},{"question":"When was the dictionary attack first mentioned?","answer":"

        The first recorded mention of the dictionary attack dates back to the early 1980s, around the time when personal computing began to emerge.<\/p>"},{"question":"How does a dictionary attack work?","answer":"

        A dictionary attack starts with an attacker obtaining a copy of the system\u2019s user account file or 'shadow file' that contains hashed versions of the user\u2019s passwords. The attacker then generates a \u2018dictionary\u2019 of hashed versions of potential passwords and compares these against the hashed passwords in the shadow file. If a match is found, the password has been effectively cracked.<\/p>"},{"question":"What are the key features of a dictionary attack?","answer":"

        The key features of a dictionary attack include its speed and efficiency, as it only attempts to crack passwords using likely possibilities. However, it's less effective against complex passwords that use a mix of letters, numbers, and special characters.<\/p>"},{"question":"What types of dictionary attacks exist?","answer":"

        There are mainly two types of dictionary attacks: standard dictionary attacks that use a simple wordlist file, and hybrid dictionary attacks that combine a wordlist file with a rules file to generate additional guesses based on the words in the wordlist.<\/p>"},{"question":"What are some solutions to problems associated with dictionary attacks?","answer":"

        Implementing account lockouts or delays after a certain number of failed attempts and using password complexity rules are some solutions. However, account lockouts can potentially create a Denial-of-Service (DoS) attack vector, and password complexity rules can lead to users creating hard-to-remember passwords, both of which pose their own challenges.<\/p>"},{"question":"How do dictionary attacks compare with other similar terms?","answer":"

        Dictionary attacks are faster than brute-force attacks but less comprehensive. Rainbow table attacks, which use precomputed tables to reverse cryptographic hash functions for cracking password hashes, are faster than brute-force attacks but require significant storage. Credential stuffing uses stolen or leaked credentials to gain unauthorized access.<\/p>"},{"question":"What are the future perspectives and technologies related to dictionary attacks?","answer":"

        Machine learning and the use of biometric data for authentication are emerging trends in the fight against dictionary attacks. Machine learning can predict and prevent attacks by studying user behavior patterns, while biometric authentication reduces the reliance on passwords.<\/p>"},{"question":"How can proxy servers be associated with dictionary attacks?","answer":"

        Proxy servers can help protect against dictionary attacks by obfuscating the IP address of the targeted system, making it harder for attackers to locate and directly attack the system. Certain proxy servers also offer security features such as rate limiting, which can slow down or block repeated login attempts.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/476809","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki"}],"about":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/types\/wiki"}],"version-history":[{"count":0,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/476809\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/468214"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=476809"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}