{"id":479127,"date":"2023-08-09T10:01:33","date_gmt":"2023-08-09T10:01:33","guid":{"rendered":""},"modified":"2023-09-05T11:18:13","modified_gmt":"2023-09-05T11:18:13","slug":"stack-smashing","status":"publish","type":"wiki","link":"https:\/\/oneproxy.pro\/tr\/wiki\/stack-smashing\/","title":{"rendered":"Y\u0131\u011f\u0131n par\u00e7alan\u0131yor"},"content":{"rendered":"<p>Stack Smashing hakk\u0131nda k\u0131sa bilgi<\/p>\n<p>Arabellek ta\u015fmas\u0131 olarak da bilinen y\u0131\u011f\u0131n par\u00e7alama, bir program\u0131n y\u0131\u011f\u0131nda bulunan bir arabelle\u011fe, o arabellek i\u00e7in ayr\u0131landan daha fazla veri yazd\u0131\u011f\u0131 bir durumu ifade eder. Bu genellikle verilerin biti\u015fik bellek konumlar\u0131n\u0131n \u00fczerine yaz\u0131lmas\u0131yla sonu\u00e7lan\u0131r. Bu, sald\u0131rgan\u0131n sistemin kontrol\u00fcn\u00fc ele ge\u00e7irmesine olanak tan\u0131yan, rastgele kod y\u00fcr\u00fct\u00fclmesine yol a\u00e7abilecek k\u00f6t\u00fc \u015f\u00f6hretli bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131d\u0131r.<\/p>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alaman\u0131n K\u00f6keninin Tarihi ve \u0130lk S\u00f6z\u00fc<\/h2>\n<p>Y\u0131\u011f\u0131n par\u00e7alama kavram\u0131n\u0131n k\u00f6keni bilgi i\u015flemin ilk g\u00fcnlerine kadar uzanabilir. Kamuya a\u00e7\u0131k olarak belgelenen ilk arabellek ta\u015fmas\u0131 vakas\u0131, 1988&#039;de UNIX&#039;in parmak arka plan program\u0131ndaki bir g\u00fcvenlik a\u00e7\u0131\u011f\u0131ndan yararlanan Morris Solucan\u0131yd\u0131. Bu olay bilgisayar g\u00fcvenli\u011fi alan\u0131na olan ilgiyi art\u0131rd\u0131 ve ara\u015ft\u0131rmac\u0131lar\u0131n ve uygulay\u0131c\u0131lar\u0131n bu t\u00fcr g\u00fcvenlik a\u00e7\u0131klar\u0131na daha fazla dikkat etmelerini sa\u011flad\u0131.<\/p>\n<h2>Stack Smashing Hakk\u0131nda Detayl\u0131 Bilgi: Konuyu Geni\u015fletmek<\/h2>\n<p>Y\u0131\u011f\u0131n par\u00e7alanmas\u0131, bilgisayar tarihindeki en yayg\u0131n ve tehlikeli g\u00fcvenlik a\u00e7\u0131klar\u0131ndan biri olmu\u015ftur. Arabellek boyutunu a\u015fan veriler yaz\u0131ld\u0131\u011f\u0131nda biti\u015fik belle\u011fin \u00fczerine yaz\u0131labilir ve bu da a\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli g\u00fcvenlik risklerine yol a\u00e7abilir:<\/p>\n<ol>\n<li><strong>Kod Y\u00fcr\u00fctme<\/strong>: Sald\u0131rgan, bir i\u015flevin d\u00f6n\u00fc\u015f adresinin \u00fczerine yazarak y\u00fcr\u00fctmeyi k\u00f6t\u00fc ama\u00e7l\u0131 koda y\u00f6nlendirebilir.<\/li>\n<li><strong>Veri bozulmas\u0131<\/strong>: \u00d6nemli veri yap\u0131lar\u0131n\u0131n \u00fczerine yazmak program\u0131n beklenmedik \u015fekilde davranmas\u0131na neden olabilir.<\/li>\n<li><strong>Hizmet Reddi<\/strong>: \u00d6nemli kontrol verilerinin \u00fczerine yaz\u0131larak program\u0131n kilitlenmesi.<\/li>\n<\/ol>\n<p>Y\u0131\u011f\u0131nlar\u0131n par\u00e7alanma riski, programlama dilleri, derleyiciler ve i\u015fletim sistemleri gibi \u00e7e\u015fitli fakt\u00f6rlere ba\u011fl\u0131d\u0131r.<\/p>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alaman\u0131n \u0130\u00e7 Yap\u0131s\u0131: Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\n<p>Y\u0131\u011f\u0131n par\u00e7alaman\u0131n i\u00e7 i\u015fleyi\u015fi, program\u0131n y\u0131\u011f\u0131n d\u00fczeninin kullan\u0131lmas\u0131n\u0131 i\u00e7erir. Tipik olarak \u015fu \u015fekilde geli\u015fir:<\/p>\n<ol>\n<li><strong>Tampon Olu\u015fturma<\/strong>: Y\u0131\u011f\u0131n \u00fczerinde bir arabellek (genellikle bir dizi) olu\u015fturulur.<\/li>\n<li><strong>Ta\u015fma<\/strong>: Tampon belle\u011fe tutabilece\u011finden daha fazla veri yaz\u0131l\u0131r.<\/li>\n<li><strong>Belle\u011fin \u00dczerine Yazma<\/strong>: Di\u011fer yerel de\u011fi\u015fkenler veya d\u00f6n\u00fc\u015f adresi gibi biti\u015fik bellek konumlar\u0131n\u0131n \u00fczerine yaz\u0131l\u0131r.<\/li>\n<li><strong>Kontrol Ele Ge\u00e7irilmesi<\/strong>: \u00dczerine yaz\u0131lan d\u00f6n\u00fc\u015f adresi, muhtemelen k\u00f6t\u00fc ama\u00e7l\u0131 kod \u00e7al\u0131\u015ft\u0131rarak beklenmeyen kontrol ak\u0131\u015f\u0131na yol a\u00e7ar.<\/li>\n<\/ol>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alaman\u0131n Temel \u00d6zelliklerinin Analizi<\/h2>\n<p>Y\u0131\u011f\u0131n par\u00e7alaman\u0131n temel \u00f6zellikleri \u015funlard\u0131r:<\/p>\n<ul>\n<li><strong>Sald\u0131r\u0131 Vekt\u00f6r\u00fc<\/strong>: Belle\u011fe k\u00f6t\u00fc kontrol edilen yazmadan yararlan\u0131r.<\/li>\n<li><strong>Darbe<\/strong>: Yetkisiz kod y\u00fcr\u00fct\u00fclmesine, verilerin bozulmas\u0131na veya sistemin \u00e7\u00f6kmesine neden olabilir.<\/li>\n<li><strong>Azaltma Teknikleri<\/strong>: Y\u0131\u011f\u0131n kanaryalar\u0131, ASLR (Adres Alan\u0131 D\u00fczeni Rastgelele\u015ftirme) ve uygun kodlama uygulamalar\u0131 dahil.<\/li>\n<\/ul>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alama T\u00fcrleri: Tablolar\u0131 ve Listeleri Kullan\u0131n<\/h2>\n<p>A\u015fa\u011f\u0131dakiler de dahil olmak \u00fczere \u00e7e\u015fitli t\u00fcrde arabellek ta\u015fmas\u0131 sald\u0131r\u0131lar\u0131 vard\u0131r:<\/p>\n<table>\n<thead>\n<tr>\n<th>Tip<\/th>\n<th>Tan\u0131m<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Y\u0131\u011f\u0131n Ta\u015fmas\u0131<\/td>\n<td>Y\u0131\u011f\u0131ndaki yerel arabellekleri ta\u015far.<\/td>\n<\/tr>\n<tr>\n<td>Y\u0131\u011f\u0131n Ta\u015fmas\u0131<\/td>\n<td>Heap&#039;te tahsis edilen arabelleklerin ta\u015fmas\u0131.<\/td>\n<\/tr>\n<tr>\n<td>Tamsay\u0131 ta\u015fmas\u0131<\/td>\n<td>Ta\u015fmaya neden olmak i\u00e7in tamsay\u0131 aritmeti\u011finden yararlan\u0131r.<\/td>\n<\/tr>\n<tr>\n<td>Dizeyi Bi\u00e7imlendir<\/td>\n<td>Bi\u00e7im dizesindeki g\u00fcvenlik a\u00e7\u0131klar\u0131ndan yararlan\u0131r.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alamay\u0131 Kullanma Yollar\u0131, Sorunlar ve \u00c7\u00f6z\u00fcmleri<\/h2>\n<h3>Kullan\u0131m Yollar\u0131:<\/h3>\n<ul>\n<li>G\u00fcvenlik a\u00e7\u0131\u011f\u0131 de\u011ferlendirmesi i\u00e7in etik hackleme.<\/li>\n<li>Yetkisiz sistem kontrol\u00fc i\u00e7in etik olmayan hackleme.<\/li>\n<\/ul>\n<h3>Sorunlar:<\/h3>\n<ul>\n<li>G\u00fcvenlik riski<\/li>\n<li>Veri B\u00fct\u00fcnl\u00fc\u011f\u00fc Kayb\u0131<\/li>\n<\/ul>\n<h3>\u00c7\u00f6z\u00fcmler:<\/h3>\n<ul>\n<li>Do\u011fru kodlama uygulamalar\u0131n\u0131 kullanmak.<\/li>\n<li>Y\u0131\u011f\u0131n kanaryalar\u0131 ve ASLR gibi \u00e7al\u0131\u015fma zaman\u0131 savunmalar\u0131n\u0131n uygulanmas\u0131.<\/li>\n<\/ul>\n<h2>Ana \u00d6zellikler ve Benzer Terimlerle Di\u011fer Kar\u015f\u0131la\u015ft\u0131rmalar<\/h2>\n<table>\n<thead>\n<tr>\n<th>Terim<\/th>\n<th>\u00d6zellikler<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Y\u0131\u011f\u0131n Par\u00e7alama<\/td>\n<td>Ta\u015fma y\u0131\u011f\u0131n\u0131, kontrol ak\u0131\u015f\u0131n\u0131 etkiler.<\/td>\n<\/tr>\n<tr>\n<td>Y\u0131\u011f\u0131n Par\u00e7alama<\/td>\n<td>Y\u0131\u011f\u0131n ta\u015fmalar\u0131 veri bozulmas\u0131na neden olabilir.<\/td>\n<\/tr>\n<tr>\n<td>Tamsay\u0131 ta\u015fmas\u0131<\/td>\n<td>Tamsay\u0131 aritmetik hatalar\u0131ndan elde edilen sonu\u00e7lar.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Y\u0131\u011f\u0131n Par\u00e7alamayla \u0130lgili Gelece\u011fin Perspektifleri ve Teknolojileri<\/h2>\n<p>Gelecekteki teknolojiler hem tespite hem de \u00f6nlemeye odaklan\u0131yor:<\/p>\n<ul>\n<li>G\u00fcvenlik a\u00e7\u0131klar\u0131n\u0131 tespit etmek i\u00e7in makine \u00f6\u011frenimi algoritmalar\u0131.<\/li>\n<li>Daha g\u00fcvenli kod \u00fcretimi i\u00e7in geli\u015fmi\u015f derleyici teknikleri.<\/li>\n<li>Ta\u015fma sald\u0131r\u0131lar\u0131na kar\u015f\u0131 do\u011fal olarak koruma sa\u011flayan yeni nesil donan\u0131m tasar\u0131mlar\u0131.<\/li>\n<\/ul>\n<h2>Proxy Sunucular\u0131 Nas\u0131l Kullan\u0131labilir veya Stack Smashing ile Nas\u0131l \u0130li\u015fkilendirilebilir?<\/h2>\n<p>OneProxy gibi proxy sunucular g\u00fcvenlikte hayati bir rol oynayabilir. Trafik d\u00fczenlerini ve potansiyel olarak k\u00f6t\u00fc ama\u00e7l\u0131 y\u00fckleri izleyerek arabellek ta\u015fmas\u0131 sald\u0131r\u0131lar\u0131n\u0131n etkilerini tespit edecek ve azaltacak \u015fekilde yap\u0131land\u0131r\u0131labilirler.<\/p>\n<h2>\u0130lgili Ba\u011flant\u0131lar<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.owasp.org\/index.php\/Buffer_Overflow\" target=\"_new\" rel=\"noopener nofollow\">OWASP Arabellek Ta\u015fmas\u0131 A\u00e7\u0131klamas\u0131<\/a><\/li>\n<li><a href=\"https:\/\/cwe.mitre.org\/data\/definitions\/120.html\" target=\"_new\" rel=\"noopener nofollow\">CWE-120: Giri\u015f Boyutunu Kontrol Etmeden Tampon Kopyalama<\/a><\/li>\n<li><a href=\"https:\/\/www.sans.org\/reading-room\/whitepapers\/securecode\/understanding-exploiting-buffer-overflow-attacks-1750\" target=\"_new\" rel=\"noopener nofollow\">SANS Enstit\u00fcs\u00fc: Arabellek Ta\u015fmas\u0131 Sald\u0131r\u0131lar\u0131n\u0131 Anlamak<\/a><\/li>\n<\/ul>","protected":false},"featured_media":479128,"menu_order":0,"template":"","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"class_list":["post-479127","wiki","type-wiki","status-publish","has-post-thumbnail","hentry"],"acf":{"faq_title":"Frequently Asked Questions about <mark>Stack Smashing<\/mark>","faq_items":[{"question":"What is Stack Smashing?","answer":"<p>Stack Smashing, also known as buffer overflow, is a cybersecurity vulnerability where a program writes more data to a buffer on the stack than it can hold. This can lead to memory corruption and security risks.<\/p>"},{"question":"How did Stack Smashing originate, and when was it first mentioned?","answer":"<p>Stack Smashing has been a concern since the early days of computing. The first documented case was the Morris Worm in 1988, which exploited a buffer overflow vulnerability in UNIX's finger daemon.<\/p>"},{"question":"How does Stack Smashing work internally?","answer":"<p>Stack Smashing exploits the program's stack layout. By overflowing a buffer, adjacent memory locations, such as return addresses, can be overwritten, leading to unintended control flow and potential code execution.<\/p>"},{"question":"What are the key features of Stack Smashing?","answer":"<p>Key features include its attack vector, potential impact (code execution, data corruption), and mitigation techniques like stack canaries and ASLR.<\/p>"},{"question":"What are the types of Stack Smashing attacks?","answer":"<p>There are several types, including Stack Overflow, Heap Overflow, Integer Overflow, and Format String attacks.<\/p>"},{"question":"How can Stack Smashing be used, and what problems does it pose?","answer":"<p>Stack Smashing can be used for ethical hacking (vulnerability assessment) or unethical purposes (unauthorized system control). The main problems are security risks and potential data integrity loss.<\/p>"},{"question":"How can Stack Smashing be mitigated?","answer":"<p>Proper coding practices and runtime defenses like stack canaries and ASLR can help prevent Stack Smashing vulnerabilities.<\/p>"},{"question":"How does Stack Smashing compare with Heap Smashing and Integer Overflow?","answer":"<p>Stack Smashing involves overflows on the stack, while Heap Smashing affects heap-allocated buffers, and Integer Overflow results from arithmetic errors.<\/p>"},{"question":"What are the future perspectives and technologies related to Stack Smashing?","answer":"<p>Future technologies focus on detection and prevention, including machine learning algorithms, advanced compiler techniques, and next-gen hardware designs.<\/p>"},{"question":"How can proxy servers like OneProxy be associated with Stack Smashing?","answer":"<p>Proxy servers like OneProxy can play a crucial role in security by monitoring traffic patterns and detecting potential buffer overflow attacks.<\/p>"}]},"_links":{"self":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/wiki\/479127","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\/479127\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media\/479128"}],"wp:attachment":[{"href":"https:\/\/oneproxy.pro\/tr\/wp-json\/wp\/v2\/media?parent=479127"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}