{"id":476483,"date":"2023-08-09T07:29:55","date_gmt":"2023-08-09T07:29:55","guid":{"rendered":""},"modified":"2023-09-05T11:12:51","modified_gmt":"2023-09-05T11:12:51","slug":"cross-site-scripting-xss","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/cross-site-scripting-xss\/","title":{"rendered":"Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS)"},"content":{"rendered":"<p>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS), web uygulamalar\u0131nda yayg\u0131n olarak bulunan ve sald\u0131rganlar\u0131n di\u011fer kullan\u0131c\u0131lar taraf\u0131ndan g\u00f6r\u00fcnt\u00fclenen web sayfalar\u0131na k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyalar\u0131 eklemesine olanak tan\u0131yan bir t\u00fcr g\u00fcvenlik a\u00e7\u0131\u011f\u0131d\u0131r. Bu komut dosyalar\u0131 daha sonra \u015f\u00fcphelenmeyen kullan\u0131c\u0131lar\u0131n taray\u0131c\u0131lar\u0131 taraf\u0131ndan y\u00fcr\u00fct\u00fcl\u00fcr ve bu da yetkisiz eri\u015fime, veri h\u0131rs\u0131zl\u0131\u011f\u0131na veya di\u011fer zararl\u0131 eylemlere yol a\u00e7ar. XSS, en yayg\u0131n ve tehlikeli web uygulamas\u0131 g\u00fcvenlik kusurlar\u0131ndan biri olarak kabul edilir ve hem kullan\u0131c\u0131lar hem de web sitesi sahipleri i\u00e7in \u00f6nemli riskler olu\u015fturur.<\/p>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rman\u0131n (XSS) k\u00f6keninin tarihi ve bundan ilk s\u00f6z<\/h2>\n<p>Siteler aras\u0131 komut dosyas\u0131 olu\u015fturma (XSS) kavram\u0131, web&#039;in hen\u00fcz emekleme a\u015famas\u0131nda oldu\u011fu 1990&#039;lar\u0131n ortalar\u0131na kadar uzan\u0131r. Bu g\u00fcvenlik a\u00e7\u0131\u011f\u0131n\u0131n ilk s\u00f6z\u00fc, RSnake&#039;in kullan\u0131c\u0131lar\u0131n web sitelerine filtrelenmemi\u015f giri\u015f g\u00f6ndermesine izin vermenin, kurban\u0131n taray\u0131c\u0131s\u0131nda k\u00f6t\u00fc ama\u00e7l\u0131 kod \u00e7al\u0131\u015ft\u0131r\u0131lmas\u0131na neden olabilecek riskleri vurgulad\u0131\u011f\u0131 1996 y\u0131l\u0131ndaki bir g\u00fcvenlik posta listesine kadar uzanabilir.<\/p>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) hakk\u0131nda ayr\u0131nt\u0131l\u0131 bilgi. Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) konusunu geni\u015fletme<\/h2>\n<p>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma, bir web uygulamas\u0131n\u0131n kullan\u0131c\u0131 giri\u015flerini uygun \u015fekilde temizleme ve do\u011frulama konusunda ba\u015far\u0131s\u0131z olmas\u0131 durumunda ortaya \u00e7\u0131kar ve sald\u0131rganlar\u0131n di\u011fer kullan\u0131c\u0131lar taraf\u0131ndan g\u00f6r\u00fcnt\u00fclenen web sayfalar\u0131na k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyalar\u0131 eklemesine olanak tan\u0131r. XSS sald\u0131r\u0131lar\u0131n\u0131n \u00fc\u00e7 ana t\u00fcr\u00fc vard\u0131r:<\/p>\n<ol>\n<li>\n<p><strong>Saklanan XSS:<\/strong> Bu t\u00fcr sald\u0131r\u0131larda, k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 hedef sunucuda, genellikle bir veritaban\u0131nda kal\u0131c\u0131 olarak depolan\u0131r ve etkilenen web sayfas\u0131na eri\u015fen kullan\u0131c\u0131lara sunulur.<\/p>\n<\/li>\n<li>\n<p><strong>Yans\u0131yan XSS:<\/strong> Burada k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 bir URL&#039;ye veya ba\u015fka bir giri\u015fe g\u00f6m\u00fcl\u00fcr ve web uygulamas\u0131 bunu uygun do\u011frulama olmadan kullan\u0131c\u0131ya geri yans\u0131t\u0131r. Kurban, manip\u00fcle edilmi\u015f ba\u011flant\u0131ya t\u0131kland\u0131\u011f\u0131nda fark\u0131nda olmadan beti\u011fi \u00e7al\u0131\u015ft\u0131r\u0131r.<\/p>\n<\/li>\n<li>\n<p><strong>DOM tabanl\u0131 XSS:<\/strong> Bu t\u00fcr XSS sald\u0131r\u0131s\u0131, bir web sayfas\u0131n\u0131n Belge Nesne Modelini (DOM) de\u011fi\u015ftirir. K\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 do\u011frudan sunucuda depolanmaz veya uygulamadan yans\u0131t\u0131lmaz; bunun yerine, hatal\u0131 istemci taraf\u0131 komut dosyas\u0131 olu\u015fturma nedeniyle kurban\u0131n taray\u0131c\u0131s\u0131nda y\u00fcr\u00fct\u00fcl\u00fcr.<\/p>\n<\/li>\n<\/ol>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rman\u0131n (XSS) i\u00e7 yap\u0131s\u0131. Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) nas\u0131l \u00e7al\u0131\u015f\u0131r?<\/h2>\n<p>XSS&#039;nin nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 anlamak i\u00e7in tipik bir XSS sald\u0131r\u0131s\u0131n\u0131n i\u00e7 yap\u0131s\u0131n\u0131 inceleyelim:<\/p>\n<ol>\n<li>\n<p><strong>Enjeksiyon Noktas\u0131:<\/strong> Sald\u0131rganlar, hedef web uygulamas\u0131nda kullan\u0131c\u0131 giri\u015flerinin uygun \u015fekilde temizlenmedi\u011fi veya do\u011frulanmad\u0131\u011f\u0131 zay\u0131f noktalar\u0131 tespit eder. Yayg\u0131n enjeksiyon noktalar\u0131 giri\u015f alanlar\u0131n\u0131, URL&#039;leri ve HTTP ba\u015fl\u0131klar\u0131n\u0131 i\u00e7erir.<\/p>\n<\/li>\n<li>\n<p><strong>K\u00f6t\u00fc Ama\u00e7l\u0131 Y\u00fck:<\/strong> Sald\u0131rgan, genellikle JavaScript&#039;te, oturum \u00e7erezlerini \u00e7almak veya kullan\u0131c\u0131lar\u0131 kimlik av\u0131 sitelerine y\u00f6nlendirmek gibi istenen k\u00f6t\u00fc ama\u00e7l\u0131 eylemi ger\u00e7ekle\u015ftiren k\u00f6t\u00fc ama\u00e7l\u0131 bir komut dosyas\u0131 olu\u015fturur.<\/p>\n<\/li>\n<li>\n<p><strong>Uygulamak:<\/strong> Haz\u0131rlanan komut dosyas\u0131 daha sonra enjeksiyon noktas\u0131 arac\u0131l\u0131\u011f\u0131yla g\u00fcvenlik a\u00e7\u0131\u011f\u0131 bulunan uygulamaya enjekte edilir.<\/p>\n<\/li>\n<li>\n<p><strong>Kullan\u0131c\u0131 etkile\u015fimi:<\/strong> \u015e\u00fcphelenmeyen bir kullan\u0131c\u0131 ele ge\u00e7irilen web sayfas\u0131yla etkile\u015fime girdi\u011finde, k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 taray\u0131c\u0131s\u0131nda y\u00fcr\u00fct\u00fcl\u00fcr.<\/p>\n<\/li>\n<li>\n<p><strong>Sald\u0131rgan\u0131n Amac\u0131:<\/strong> Sald\u0131rgan\u0131n amac\u0131, sald\u0131r\u0131n\u0131n niteli\u011fine ba\u011fl\u0131 olarak hassas bilgileri \u00e7almak, kullan\u0131c\u0131 oturumlar\u0131n\u0131 ele ge\u00e7irmek, k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131m yaymak veya web sitelerini tahrif etmek olabilir.<\/p>\n<\/li>\n<\/ol>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rman\u0131n (XSS) temel \u00f6zelliklerinin analizi<\/h2>\n<p>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rman\u0131n temel \u00f6zellikleri \u015funlar\u0131 i\u00e7erir:<\/p>\n<ol>\n<li>\n<p><strong>\u0130stemci Tarafl\u0131 S\u00f6m\u00fcr\u00fc:<\/strong> XSS sald\u0131r\u0131lar\u0131 \u00f6ncelikle istemci taraf\u0131n\u0131 hedef al\u0131r ve k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyalar\u0131n\u0131 y\u00fcr\u00fctmek i\u00e7in kullan\u0131c\u0131n\u0131n web taray\u0131c\u0131s\u0131ndan yararlan\u0131r.<\/p>\n<\/li>\n<li>\n<p><strong>\u00c7e\u015fitli S\u00f6m\u00fcr\u00fc Vekt\u00f6rleri:<\/strong> XSS, formlar, arama \u00e7ubuklar\u0131, yorum b\u00f6l\u00fcmleri ve URL&#039;ler gibi \u00e7e\u015fitli vekt\u00f6rler arac\u0131l\u0131\u011f\u0131yla y\u00fcr\u00fct\u00fclebilir.<\/p>\n<\/li>\n<li>\n<p><strong>\u00d6nem D\u00fczeyleri:<\/strong> XSS sald\u0131r\u0131lar\u0131n\u0131n etkisi, hafif rahats\u0131z edici pop-up&#039;lardan veri ihlalleri ve mali kay\u0131plar gibi ciddi sonu\u00e7lara kadar de\u011fi\u015febilir.<\/p>\n<\/li>\n<li>\n<p><strong>Kullan\u0131c\u0131 G\u00fcvenine Ba\u011fl\u0131l\u0131k:<\/strong> XSS, enjekte edilen komut dosyas\u0131n\u0131n me\u015fru bir kaynaktan geliyormu\u015f gibi g\u00f6r\u00fcnmesi nedeniyle s\u0131kl\u0131kla kullan\u0131c\u0131lar\u0131n ziyaret ettikleri web sitelerine duydu\u011fu g\u00fcveni istismar eder.<\/p>\n<\/li>\n<li>\n<p><strong>Ba\u011flam Tabanl\u0131 G\u00fcvenlik A\u00e7\u0131klar\u0131:<\/strong> HTML, JavaScript ve CSS gibi farkl\u0131 ba\u011flamlar\u0131n benzersiz ka\u00e7\u0131\u015f gereksinimleri vard\u0131r ve bu da uygun giri\u015f do\u011frulamay\u0131 \u00e7ok \u00f6nemli hale getirir.<\/p>\n<\/li>\n<\/ol>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma t\u00fcrleri (XSS)<\/h2>\n<p>XSS sald\u0131r\u0131lar\u0131, y\u00fcr\u00fctme y\u00f6ntemlerine ve etkilerine g\u00f6re \u00fc\u00e7 t\u00fcre ayr\u0131l\u0131r:<\/p>\n<table>\n<thead>\n<tr>\n<th><strong>Tip<\/strong><\/th>\n<th><strong>Tan\u0131m<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Saklanan XSS<\/td>\n<td>K\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 sunucuda depolan\u0131r ve ele ge\u00e7irilen web sayfas\u0131ndan kullan\u0131c\u0131lara sunulur.<\/td>\n<\/tr>\n<tr>\n<td>Yans\u0131yan XSS<\/td>\n<td>K\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131 bir URL&#039;ye veya ba\u015fka bir giri\u015fe yerle\u015ftirilmi\u015ftir ve onu kullan\u0131c\u0131ya geri yans\u0131t\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>DOM tabanl\u0131 XSS<\/td>\n<td>Sald\u0131r\u0131, bir web sayfas\u0131n\u0131n DOM&#039;sini de\u011fi\u015ftirerek, taray\u0131c\u0131da k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyas\u0131n\u0131 \u00e7al\u0131\u015ft\u0131r\u0131r.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rmay\u0131 (XSS) kullanma yollar\u0131, sorunlar ve kullan\u0131mla ilgili \u00e7\u00f6z\u00fcmleri<\/h2>\n<p>Sald\u0131rganlar XSS&#039;yi a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli k\u00f6t\u00fc ama\u00e7larla kullanabilir:<\/p>\n<ol>\n<li>\n<p><strong>Oturum \u00e7alma:<\/strong> Sald\u0131rganlar, oturum \u00e7erezlerini \u00e7alarak me\u015fru kullan\u0131c\u0131lar\u0131n kimli\u011fine b\u00fcr\u00fcnebilir ve yetkisiz eri\u015fim elde edebilir.<\/p>\n<\/li>\n<li>\n<p><strong>Kimlik Av\u0131 Sald\u0131r\u0131lar\u0131:<\/strong> XSS, kullan\u0131c\u0131lar\u0131 kimlik av\u0131 sayfalar\u0131na y\u00f6nlendirmek ve hassas bilgileri if\u015fa etmeleri i\u00e7in kand\u0131rmak i\u00e7in kullan\u0131labilir.<\/p>\n<\/li>\n<li>\n<p><strong>Keylogging:<\/strong> K\u00f6t\u00fc ama\u00e7l\u0131 komut dosyalar\u0131, kullan\u0131c\u0131n\u0131n tu\u015f vuru\u015flar\u0131n\u0131 kaydederek hassas verileri yakalayabilir.<\/p>\n<\/li>\n<li>\n<p><strong>Silinti:<\/strong> Sald\u0131rganlar, yanl\u0131\u015f bilgi yaymak veya bir \u015firketin itibar\u0131na zarar vermek i\u00e7in web sitesi i\u00e7eri\u011fini de\u011fi\u015ftirebilir.<\/p>\n<\/li>\n<li>\n<p><strong>K\u00f6t\u00fc Ama\u00e7l\u0131 Yaz\u0131l\u0131m Da\u011f\u0131t\u0131m\u0131:<\/strong> XSS, \u015f\u00fcpheli olmayan kullan\u0131c\u0131lara k\u00f6t\u00fc ama\u00e7l\u0131 yaz\u0131l\u0131m da\u011f\u0131tmak i\u00e7in kullan\u0131labilir.<\/p>\n<\/li>\n<\/ol>\n<p>XSS g\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 azaltmak i\u00e7in web geli\u015ftiricileri en iyi uygulamalar\u0131 izlemelidir:<\/p>\n<ol>\n<li>\n<p><strong>Giri\u015f Do\u011frulamas\u0131:<\/strong> Komut dosyas\u0131 enjeksiyonunu \u00f6nlemek i\u00e7in t\u00fcm kullan\u0131c\u0131 giri\u015flerini temizleyin ve do\u011frulay\u0131n.<\/p>\n<\/li>\n<li>\n<p><strong>\u00c7\u0131k\u0131\u015f Kodlamas\u0131:<\/strong> Komut dosyas\u0131n\u0131n y\u00fcr\u00fct\u00fclmesini \u00f6nlemek i\u00e7in dinamik i\u00e7eri\u011fi olu\u015fturmadan \u00f6nce kodlay\u0131n.<\/p>\n<\/li>\n<li>\n<p><strong>Yaln\u0131zca HTTP \u00c7erezleri:<\/strong> Oturum ele ge\u00e7irme sald\u0131r\u0131lar\u0131n\u0131 azaltmak i\u00e7in yaln\u0131zca HTTP \u00e7erezlerini kullan\u0131n.<\/p>\n<\/li>\n<li>\n<p><strong>\u0130\u00e7erik G\u00fcvenli\u011fi Politikas\u0131 (CSP):<\/strong> Y\u00fcr\u00fct\u00fclebilir komut dosyalar\u0131n\u0131n kaynaklar\u0131n\u0131 k\u0131s\u0131tlamak i\u00e7in CSP ba\u015fl\u0131klar\u0131n\u0131 uygulay\u0131n.<\/p>\n<\/li>\n<li>\n<p><strong>G\u00fcvenli Geli\u015ftirme Uygulamalar\u0131:<\/strong> Geli\u015ftiricileri g\u00fcvenli kodlama uygulamalar\u0131 konusunda e\u011fitin ve d\u00fczenli g\u00fcvenlik denetimleri ger\u00e7ekle\u015ftirin.<\/p>\n<\/li>\n<\/ol>\n<h2>Tablolar ve listeler \u015feklinde ana \u00f6zellikler ve benzer terimlerle di\u011fer kar\u015f\u0131la\u015ft\u0131rmalar<\/h2>\n<table>\n<thead>\n<tr>\n<th><strong>\u00d6zellikler<\/strong><\/th>\n<th><strong>Siteler Aras\u0131 Komut Dosyas\u0131 \u00c7al\u0131\u015ft\u0131rma (XSS)<\/strong><\/th>\n<th><strong>Siteler Aras\u0131 \u0130stek Sahtecili\u011fi (CSRF)<\/strong><\/th>\n<th><strong>SQL Enjeksiyonu<\/strong><\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sald\u0131r\u0131 T\u00fcr\u00fc<\/td>\n<td>\u0130stemci Taraf\u0131 S\u00f6m\u00fcr\u00fc<\/td>\n<td>Sunucu Taraf\u0131 Kullan\u0131m\u0131<\/td>\n<td>Sunucu Taraf\u0131 Kullan\u0131m\u0131<\/td>\n<\/tr>\n<tr>\n<td>\u00d6ncelikli hedef<\/td>\n<td>Kullan\u0131c\u0131n\u0131n Web Taray\u0131c\u0131s\u0131<\/td>\n<td>Web Uygulamas\u0131n\u0131n Durum De\u011fi\u015ftiren \u0130stekleri<\/td>\n<td>Web Uygulamas\u0131 Veritaban\u0131<\/td>\n<\/tr>\n<tr>\n<td>\u0130stismar Edilen G\u00fcvenlik A\u00e7\u0131\u011f\u0131<\/td>\n<td>Uygunsuz Giri\u015f \u0130\u015fleme<\/td>\n<td>CSRF Tokenlar\u0131n\u0131n Eksikli\u011fi<\/td>\n<td>Uygunsuz Giri\u015f \u0130\u015fleme<\/td>\n<\/tr>\n<tr>\n<td>Etki \u015eiddeti<\/td>\n<td>Hafif ila \u015eiddet Aral\u0131\u011f\u0131<\/td>\n<td>\u0130\u015flemsel Operasyonlar<\/td>\n<td>Yetkisiz Veri \u0130f\u015fas\u0131<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) ile ilgili gelece\u011fin perspektifleri ve teknolojileri<\/h2>\n<p>XSS \u00f6nlemenin gelece\u011fi, web uygulamas\u0131 g\u00fcvenli\u011findeki ilerlemelerde ve g\u00fcvenli geli\u015ftirme uygulamalar\u0131n\u0131n benimsenmesinde yatmaktad\u0131r. Potansiyel geli\u015fmeler \u015funlar\u0131 i\u00e7erebilir:<\/p>\n<ol>\n<li>\n<p><strong>Geli\u015fmi\u015f Giri\u015f Do\u011frulamas\u0131:<\/strong> XSS a\u00e7\u0131klar\u0131n\u0131 daha iyi tespit etmek ve \u00f6nlemek i\u00e7in otomatik ara\u00e7lar ve \u00e7er\u00e7eveler.<\/p>\n<\/li>\n<li>\n<p><strong>Yapay Zeka Odakl\u0131 Savunmalar:<\/strong> S\u0131f\u0131r g\u00fcn XSS tehditlerini proaktif olarak tespit etmek ve azaltmak i\u00e7in Yapay Zeka.<\/p>\n<\/li>\n<li>\n<p><strong>Web Taray\u0131c\u0131s\u0131 Geli\u015ftirmeleri:<\/strong> XSS risklerini en aza indirmek i\u00e7in geli\u015ftirilmi\u015f taray\u0131c\u0131 g\u00fcvenli\u011fi \u00f6zellikleri.<\/p>\n<\/li>\n<li>\n<p><strong>G\u00fcvenlik E\u011fitimi:<\/strong> Geli\u015ftiricilere \u00f6nce g\u00fcvenlik zihniyetini a\u015f\u0131lamak i\u00e7in daha kapsaml\u0131 g\u00fcvenlik e\u011fitimi.<\/p>\n<\/li>\n<\/ol>\n<h2>Proxy sunucular\u0131 nas\u0131l kullan\u0131labilir veya Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) ile nas\u0131l ili\u015fkilendirilebilir?<\/h2>\n<p>Proxy sunucular\u0131 XSS risklerinin azalt\u0131lmas\u0131nda \u00f6nemli bir rol oynayabilir. Proxy sunucular\u0131, istemciler ve web sunucular\u0131 aras\u0131nda arac\u0131 g\u00f6revi g\u00f6rerek a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere ek g\u00fcvenlik \u00f6nlemleri uygulayabilir:<\/p>\n<ol>\n<li>\n<p><strong>\u0130\u00e7erik filtreleme:<\/strong> Proxy sunucular\u0131, web trafi\u011fini k\u00f6t\u00fc ama\u00e7l\u0131 komut dosyalar\u0131na kar\u015f\u0131 tarayabilir ve bunlar\u0131 m\u00fc\u015fterinin taray\u0131c\u0131s\u0131na ula\u015fmadan \u00f6nce engelleyebilir.<\/p>\n<\/li>\n<li>\n<p><strong>SSL\/TLS Denetimi:<\/strong> Proxy&#039;ler \u015fifrelenmi\u015f trafi\u011fi potansiyel tehditlere kar\u015f\u0131 inceleyerek \u015fifreli kanallar\u0131 kullanan sald\u0131r\u0131lar\u0131 \u00f6nleyebilir.<\/p>\n<\/li>\n<li>\n<p><strong>Filtreleme \u0130ste\u011fi:<\/strong> Proxy sunucular\u0131 gelen istekleri analiz edebilir ve XSS denemesi gibi g\u00f6r\u00fcnenleri engelleyebilir.<\/p>\n<\/li>\n<li>\n<p><strong>Web Uygulamas\u0131 G\u00fcvenlik Duvarlar\u0131 (WAF&#039;ler):<\/strong> Bir\u00e7ok proxy sunucusu, bilinen kal\u0131plara dayal\u0131 XSS sald\u0131r\u0131lar\u0131n\u0131 tespit etmek ve \u00f6nlemek i\u00e7in WAF&#039;lar\u0131 i\u00e7erir.<\/p>\n<\/li>\n<li>\n<p><strong>Oturum Y\u00f6netimi:<\/strong> Proxy&#039;ler kullan\u0131c\u0131 oturumlar\u0131n\u0131 g\u00fcvenli bir \u015fekilde y\u00f6neterek oturumun ele ge\u00e7irilmesi riskini azalt\u0131r.<\/p>\n<\/li>\n<\/ol>\n<h2>\u0130lgili Ba\u011flant\u0131lar<\/h2>\n<p>Siteler aras\u0131 komut dosyas\u0131 \u00e7al\u0131\u015ft\u0131rma (XSS) hakk\u0131nda daha fazla bilgi i\u00e7in a\u015fa\u011f\u0131daki kaynaklar\u0131 ziyaret edebilirsiniz:<\/p>\n<ol>\n<li><a href=\"https:\/\/owasp.org\/www-community\/attacks\/xss\/\" target=\"_new\" rel=\"noopener nofollow\">OWASP Siteler Aras\u0131 Komut Dosyas\u0131 \u00c7al\u0131\u015ft\u0131rma (XSS) \u00d6nleme Hile Sayfas\u0131<\/a><\/li>\n<li><a href=\"https:\/\/www.w3schools.com\/js\/js_security.asp\" target=\"_new\" rel=\"noopener nofollow\">W3Schools \u2013 JavaScript G\u00fcvenli\u011fi<\/a><\/li>\n<li><a href=\"https:\/\/developers.google.com\/web\/fundamentals\/security\/csp\" target=\"_new\" rel=\"noopener nofollow\">Google Web Temelleri \u2013 Siteler Aras\u0131 Komut Dosyas\u0131n\u0131 \u00d6nleme (XSS)<\/a><\/li>\n<\/ol>\n<p>Kendinizi ve kullan\u0131c\u0131lar\u0131n\u0131z\u0131 olas\u0131 XSS sald\u0131r\u0131 risklerinden korumak i\u00e7in web g\u00fcvenli\u011fine ili\u015fkin en iyi uygulamalar hakk\u0131nda bilgi sahibi olman\u0131n \u00e7ok \u00f6nemli oldu\u011funu unutmay\u0131n. G\u00fc\u00e7l\u00fc g\u00fcvenlik \u00f6nlemlerinin uygulanmas\u0131, web uygulamalar\u0131n\u0131z\u0131 koruyacak ve herkes i\u00e7in daha g\u00fcvenli bir gezinme deneyimi sa\u011flayacakt\u0131r.<\/p>","protected":false},"featured_media":468044,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-476483","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Cross-site scripting (XSS)<\/mark>","faq_items":[{"question":"What is Cross-site scripting (XSS)?","answer":"<p>Cross-site scripting (XSS) is a common web application security vulnerability that allows attackers to inject malicious scripts into web pages viewed by other users. These scripts are then executed by the victims' browsers, leading to potential data theft, unauthorized access, or other harmful actions.<\/p>"},{"question":"How did Cross-site scripting (XSS) originate?","answer":"<p>The concept of Cross-site scripting dates back to the mid-1990s, with its first mention in a security mailing list in 1996. RSnake highlighted the risks of allowing users to submit unfiltered input to websites, which could result in the execution of malicious code on the victim's browser.<\/p>"},{"question":"What are the different types of Cross-site scripting (XSS) attacks?","answer":"<p>There are three primary types of XSS attacks:<\/p><ol><li>Stored XSS: The malicious script is permanently stored on the target server and served to users accessing the affected web page.<\/li><li>Reflected XSS: The malicious script is embedded in a URL or other input, and the web application reflects it back to the user without proper validation.<\/li><li>DOM-based XSS: The attack manipulates the Document Object Model (DOM) of a web page, executing the malicious script within the victim's browser due to flawed client-side scripting.<\/li><\/ol>"},{"question":"How does Cross-site scripting (XSS) work?","answer":"<p>XSS attacks occur when web applications fail to properly sanitize and validate user inputs. Attackers identify vulnerable points in the application, inject malicious scripts, and then unsuspecting users execute these scripts within their browsers.<\/p>"},{"question":"What are the key features of Cross-site scripting (XSS)?","answer":"<p>Key features of XSS include:<\/p><ul><li>Client-side exploitation using web browsers.<\/li><li>Diverse exploitation vectors, such as input fields, URLs, and more.<\/li><li>Varying severity levels from annoying pop-ups to serious data breaches.<\/li><li>Dependency on user trust in the compromised website.<\/li><li>Context-based vulnerabilities with unique escaping requirements.<\/li><\/ul>"},{"question":"How can I protect my web applications from Cross-site scripting (XSS) attacks?","answer":"<p>To mitigate XSS vulnerabilities, follow these best practices:<\/p><ul><li>Implement proper input validation and output encoding.<\/li><li>Use HTTP-only cookies to prevent session hijacking.<\/li><li>Employ Content Security Policy (CSP) to restrict executable scripts' sources.<\/li><li>Train developers on secure coding practices and conduct security audits regularly.<\/li><\/ul>"},{"question":"What are some future perspectives related to Cross-site scripting (XSS)?","answer":"<p>The future of XSS prevention lies in advancements in web application security and the adoption of secure development practices. Potential developments may include advanced input validation, AI-driven defenses, improved browser security features, and more extensive security training for developers.<\/p>"},{"question":"How can proxy servers help with Cross-site scripting (XSS) protection?","answer":"<p>Proxy servers can play a significant role in mitigating XSS risks. They can filter content, inspect encrypted traffic, analyze incoming requests, and implement Web Application Firewalls (WAFs) to detect and prevent XSS attacks. Proxy servers can also manage user sessions securely, reducing the risk of session hijacking.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/476483","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\/476483\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/468044"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=476483"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}