{"id":408,"date":"2025-11-21T12:57:11","date_gmt":"2025-11-21T09:57:11","guid":{"rendered":"https:\/\/blog.kriweb.com\/?p=408"},"modified":"2025-12-26T17:13:39","modified_gmt":"2025-12-26T14:13:39","slug":"kricandan-hikayeler-3-web-hirsizi-ve-waf","status":"publish","type":"post","link":"https:\/\/kriweb.com\/blog\/kricandan-hikayeler-3-web-hirsizi-ve-waf\/","title":{"rendered":"Krican&#8217;dan Hikayeler 3: Web H\u0131rs\u0131z\u0131 ve WAF"},"content":{"rendered":"\n<p>Dijital d\u00fcnyan\u0131n en deneyimli koruyucusu Krican, o g\u00fcn sunucular\u0131n\u0131n en derin katmanlar\u0131nda rutin bir kontrol yap\u0131yordu. Y\u0131llard\u0131r bu sanal sokaklar\u0131 kar\u0131\u015f kar\u0131\u015f bilirdi ama bu sefer farkl\u0131 bir \u015fey vard\u0131 havada. Adeta bir tehlike kokusu. Ad\u0131mlar\u0131n\u0131 h\u0131zland\u0131rd\u0131, log dosyalar\u0131n\u0131 teker teker inceledi. \u0130\u015fte o zaman fark etti: arkas\u0131ndaki g\u00f6lge.<\/p>\n\n\n\n<p>Bu s\u0131radan bir ziyaret\u00e7i de\u011fildi. Kar\u015f\u0131s\u0131nda dijital d\u00fcnyan\u0131n en sinsi d\u00fc\u015fmanlar\u0131ndan biri duruyordu: Web H\u0131rs\u0131z\u0131.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Karanl\u0131k Niyetli Bir Ziyaret\u00e7i<\/h2>\n\n\n\n<p>Web H\u0131rs\u0131z\u0131, ad\u0131n\u0131 duyuranlar\u0131n en tehlikelisiydi. Onlarca web sitesini \u00e7\u00f6kertmi\u015f, binlerce kullan\u0131c\u0131n\u0131n verilerini \u00e7alm\u0131\u015f, say\u0131s\u0131z i\u015fletmeyi dijital kaosa s\u00fcr\u00fcklemi\u015fti. \u015eimdi de g\u00f6z\u00fcn\u00fc Krican&#8217;\u0131n en de\u011ferli varl\u0131\u011f\u0131na dikmi\u015fti: veri taban\u0131na.<\/p>\n\n\n\n<p>H\u0131rs\u0131z\u0131n elinde SQL Injection han\u00e7eri parl\u0131yordu. Bu silah, web uygulamalar\u0131n\u0131n en hassas noktas\u0131ndan s\u0131zarak do\u011frudan veri taban\u0131na ula\u015fabiliyordu. Arkas\u0131nda ise botnet ordusu vard\u0131; binlerce ele ge\u00e7irilmi\u015f cihazdan olu\u015fan, koordineli sald\u0131r\u0131lar d\u00fczenleyebilen bir dijital mafya.<\/p>\n\n\n\n<p>Krican tecr\u00fcbeliydi. Hemen harekete ge\u00e7ti. Portlar\u0131 tek tek kapatt\u0131, \u015fifreleri de\u011fi\u015ftirdi, g\u00fcvenlik duvar\u0131n\u0131 y\u00fckseltti. Ama Web H\u0131rs\u0131z\u0131 da kolay pes edecek biri de\u011fildi. Her kapat\u0131lan kap\u0131n\u0131n ard\u0131ndan yeni bir a\u00e7\u0131k buluyordu. XSS sald\u0131r\u0131lar\u0131, CSRF a\u00e7\u0131klar\u0131, dosya y\u00fckleme zafiyetleri&#8230; H\u0131rs\u0131z, sanki Krican&#8217;\u0131n t\u00fcm zay\u0131f noktalar\u0131n\u0131 \u00f6nceden ke\u015ffetmi\u015f gibi hareket ediyordu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u00f6\u015feye S\u0131k\u0131\u015fan Koruyucu<\/h2>\n\n\n\n<p>Dakikalar saniyeler gibi ge\u00e7iyordu. Krican her savunma hatt\u0131n\u0131 g\u00fc\u00e7lendirmeye \u00e7al\u0131\u015fsa da H\u0131rs\u0131z bir ad\u0131m \u00f6nde g\u00f6r\u00fcn\u00fcyordu. DDoS sald\u0131r\u0131lar\u0131 sunucular\u0131 yava\u015flatmaya ba\u015flad\u0131. Trafik anormal seviyelere ula\u015ft\u0131. Me\u015fru kullan\u0131c\u0131lar siteye eri\u015femez hale geldi.<\/p>\n\n\n\n<p>Krican k\u00f6\u015feye s\u0131k\u0131\u015fm\u0131\u015ft\u0131. Nefesi kesilmek \u00fczereydi. Sistemler alarm veriyordu. Veri taban\u0131 ba\u011flant\u0131lar\u0131 kritik seviyeye yakla\u015fm\u0131\u015ft\u0131. Web H\u0131rs\u0131z\u0131 zafer sarho\u015flu\u011fuyla son hamlesini yapmak i\u00e7in elini kald\u0131rd\u0131. SQL Injection han\u00e7erini son kez savurdu.<\/p>\n\n\n\n<p>\u0130\u015fte tam o kritik anda, Krican cebindeki son kozu hat\u0131rlad\u0131. O sihirli butonu, acil durumlarda kullan\u0131lmak \u00fczere saklad\u0131\u011f\u0131 o son savunma hatt\u0131n\u0131: WAF, yani Web Application Firewall.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Sihirli Kalkan\u0131n G\u00fcc\u00fc<\/h2>\n\n\n\n<p>T\u00fcm g\u00fcc\u00fcyle butona bast\u0131. Bir anda Krican ile Web H\u0131rs\u0131z\u0131 aras\u0131na g\u00f6r\u00fcnmez ama son derece sa\u011flam bir duvar \u00f6r\u00fcld\u00fc. WAF kalkan\u0131 aktif olmu\u015ftu.<\/p>\n\n\n\n<p>Bu s\u0131radan bir g\u00fcvenlik duvar\u0131 de\u011fildi. WAF, web uygulamalar\u0131na \u00f6zel olarak tasarlanm\u0131\u015f, ak\u0131ll\u0131 bir savunma sistemiydi. HTTP trafi\u011fini anl\u0131k olarak analiz ediyor, k\u00f6t\u00fc niyetli istekleri tespit edip engelleyebiliyordu.<\/p>\n\n\n\n<p>Web H\u0131rs\u0131z\u0131&#8217;n\u0131n SQL Injection han\u00e7eri WAF kalkan\u0131na \u00e7arpt\u0131 ve parampar\u00e7a oldu. Botnet ordusunun DDoS sald\u0131r\u0131lar\u0131 duvara toslad\u0131, geri sekti. XSS sald\u0131r\u0131lar\u0131, CSRF giri\u015fimleri, k\u00f6t\u00fc ama\u00e7l\u0131 dosya y\u00fckleme denemeleri&#8230; Hepsi WAF&#8217;\u0131n zekas\u0131 kar\u015f\u0131s\u0131nda etkisiz kald\u0131.<\/p>\n\n\n\n<p>WAF, her sald\u0131r\u0131y\u0131 ger\u00e7ek zamanl\u0131 olarak analiz ediyor, OWASP Top 10 g\u00fcvenlik a\u00e7\u0131klar\u0131na kar\u015f\u0131 koruma sa\u011fl\u0131yor, anormal trafik desenlerini tespit ediyordu. Zero-day sald\u0131r\u0131lar\u0131na bile kar\u015f\u0131 koyabilecek kadar geli\u015fmi\u015f kurallar i\u00e7eriyordu.<\/p>\n\n\n\n<p>Krican, WAF&#8217;\u0131n arkas\u0131ndan g\u00fcvenle g\u00fcl\u00fcmseyerek Web H\u0131rs\u0131z\u0131&#8217;na el sallad\u0131. H\u0131rs\u0131z, t\u00fcm silahlar\u0131n\u0131 denemi\u015f ama hi\u00e7biri i\u015fe yaramam\u0131\u015ft\u0131. Sonunda yenilgiyi kabul edip karanl\u0131k sokaklara geri \u00e7ekildi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Dijital D\u00fcnyada Ger\u00e7ek Tehdit<\/h2>\n\n\n\n<p>Bu hikaye kurgu olsa da temsil etti\u011fi tehdit son derece ger\u00e7ek. Her g\u00fcn binlerce web sitesi siber sald\u0131r\u0131lara maruz kal\u0131yor. SQL Injection, XSS, DDoS gibi sald\u0131r\u0131lar sadece b\u00fcy\u00fck \u015firketleri de\u011fil, k\u00fc\u00e7\u00fck i\u015fletmeleri, e-ticaret sitelerini, kurumsal portalleri de hedef al\u0131yor.<\/p>\n\n\n\n<p>\u0130statistikler \u00fcrk\u00fct\u00fcc\u00fc: web uygulamalar\u0131na y\u00f6nelik sald\u0131r\u0131lar her y\u0131l y\u00fczde 50&#8217;den fazla art\u0131yor. Ortalama bir veri ihlali i\u015fletmelere milyonlarca lira zarara mal olabiliyor. Daha da k\u00f6t\u00fcs\u00fc, m\u00fc\u015fteri g\u00fcveninin kayb\u0131 ve marka itibar\u0131n\u0131n zedelenmesi telafisi zor hasarlar yarat\u0131yor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">WAF Neden Kritik Bir \u0130htiya\u00e7?<\/h2>\n\n\n\n<p>Web Application Firewall, modern web g\u00fcvenli\u011finin vazge\u00e7ilmez bir par\u00e7as\u0131 haline geldi. Geleneksel g\u00fcvenlik duvarlar\u0131 a\u011f katman\u0131nda \u00e7al\u0131\u015f\u0131rken, WAF uygulama katman\u0131nda koruma sa\u011fl\u0131yor. Bu da web uygulamalar\u0131na \u00f6zg\u00fc sald\u0131r\u0131lara kar\u015f\u0131 \u00e7ok daha etkili bir savunma anlam\u0131na geliyor.<\/p>\n\n\n\n<p>WAF&#8217;\u0131n sa\u011flad\u0131\u011f\u0131 koruma katmanlar\u0131 \u015funlar\u0131 i\u00e7eriyor: SQL Injection sald\u0131r\u0131lar\u0131n\u0131 engelleme, Cross-Site Scripting sald\u0131r\u0131lar\u0131na kar\u015f\u0131 koruma, DDoS sald\u0131r\u0131lar\u0131n\u0131 hafifletme, bot trafi\u011fini filtreleme, API g\u00fcvenli\u011fini sa\u011flama, s\u0131f\u0131r g\u00fcn a\u00e7\u0131klar\u0131na kar\u015f\u0131 sanal yamalama.<\/p>\n\n\n\n<p>\u00d6zellikle e-ticaret siteleri, bankac\u0131l\u0131k uygulamalar\u0131, m\u00fc\u015fteri verilerini i\u015fleyen platformlar i\u00e7in WAF art\u0131k opsiyonel de\u011fil, zorunlu bir g\u00fcvenlik \u00f6nlemi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">KRIWEB&#8217;in WAF \u00c7\u00f6z\u00fcmleri<\/h2>\n\n\n\n<p>KRIWEB olarak m\u00fc\u015fterilerimizin dijital varl\u0131klar\u0131n\u0131 korumay\u0131 en \u00f6nemli \u00f6nceli\u011fimiz olarak g\u00f6r\u00fcyoruz. Hosting paketlerimizde sundu\u011fumuz WAF korumas\u0131, web sitenizi 7\/24 izliyor ve ger\u00e7ek zamanl\u0131 tehdit analizi yap\u0131yor.<\/p>\n\n\n\n<p>T\u00fcrkiye merkezli sunucular\u0131m\u0131z sayesinde d\u00fc\u015f\u00fck gecikme s\u00fcreleri ve y\u00fcksek performans sa\u011flarken, WAF katman\u0131m\u0131z arka planda sessizce \u00e7al\u0131\u015f\u0131yor. Sald\u0131r\u0131lar ger\u00e7ekle\u015fmeden \u00f6nce tespit ediliyor ve engelleniyor.<\/p>\n\n\n\n<p>24\/7 T\u00fcrk\u00e7e teknik destek ekibimiz, g\u00fcvenlik olaylar\u0131nda an\u0131nda m\u00fcdahale edebiliyor. Ayr\u0131ca d\u00fczenli g\u00fcvenlik raporlar\u0131 ile sitenize y\u00f6nelik tehditleri takip edebilir, g\u00fcvenlik stratejinizi s\u00fcrekli g\u00fcncel tutabilirsiniz.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u0131ssadan Hisse: Son Dakikay\u0131 Beklemeyin<\/h2>\n\n\n\n<p>Krican gibi son dakikay\u0131 beklemeyin. Web H\u0131rs\u0131z\u0131 kap\u0131n\u0131z\u0131 \u00e7ald\u0131\u011f\u0131nda haz\u0131r olmak yerine, \u015fimdiden \u00f6nleminizi al\u0131n. Dijital varl\u0131klar\u0131n\u0131z\u0131 korumak i\u00e7in WAF kalkan\u0131n\u0131z her zaman aktif olsun.<\/p>\n\n\n\n<p>Bir siber sald\u0131r\u0131 ya\u015fad\u0131ktan sonra hasar kontrol\u00fc yapmak, \u00f6nceden \u00f6nlem almaktan \u00e7ok daha maliyetli ve stresli. M\u00fc\u015fteri verilerinin \u00e7al\u0131nmas\u0131, sitenizin \u00e7\u00f6kmesi, marka itibar\u0131n\u0131z\u0131n zarar g\u00f6rmesi&#8230; Bunlar\u0131n hi\u00e7biri ya\u015fanmadan \u00f6nce harekete ge\u00e7mek her zaman daha ak\u0131ll\u0131ca.<\/p>\n\n\n\n<p>KRIWEB&#8217;in g\u00fcvenli hosting \u00e7\u00f6z\u00fcmleri ile siteniz her zaman korunakl\u0131. WAF, SSL sertifikalar\u0131, d\u00fczenli yedeklemeler ve profesyonel destek ile dijital d\u00fcnyan\u0131n karanl\u0131k sokaklar\u0131nda g\u00fcvenle y\u00fcr\u00fcyebilirsiniz.<\/p>\n\n\n\n<p>\u00c7\u00fcnk\u00fc dijital d\u00fcnyada en iyi savunma, proaktif olmakt\u0131r. Krican&#8217;\u0131n hikayesinden ders al\u0131n: sihirli kalkan\u0131n\u0131z\u0131 \u015fimdiden aktif edin. <a href=\"https:\/\/api.whatsapp.com\/send\/?phone=908504410574&amp;text&amp;type=phone_number&amp;app_absent=0\">Bizimle ileti\u015fime ge\u00e7in.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dijital d\u00fcnyan\u0131n en deneyimli koruyucusu Krican, o g\u00fcn sunucular\u0131n\u0131n en derin katmanlar\u0131nda&#8230;<\/p>\n","protected":false},"author":1,"featured_media":409,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[94],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.7 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Krican&#039;dan Hikayeler 3: Web H\u0131rs\u0131z\u0131 ve WAF - Kriweb Blog<\/title>\n<meta name=\"description\" content=\"WAF nedir ve web sitenizi nas\u0131l korur? 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