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<!DOCTYPE html>
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scrollreveal: "//cdn.bootcss.com/scrollReveal.js/3.1.4/scrollreveal.min.js",
search: true
}
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yiliaConfig.jquery_ui = [true, "//cdn.bootcss.com/jqueryui/1.10.4/jquery-ui.min.js", "//cdn.bootcss.com/jqueryui/1.10.4/css/jquery-ui.min.css"];
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<div class="widget tagcloud" id="js-tagcloud">
<ul class="tag-list" itemprop="keywords"><li class="tag-list-item"><a class="tag-list-link" href="/tags/Java%E5%9F%BA%E7%A1%80/" rel="tag">Java基础</a></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0/" rel="tag">文件上传</a></li><li class="tag-list-item"><a class="tag-list-link" href="/tags/%E6%BC%8F%E6%B4%9E%E5%A4%8D%E7%8E%B0/" rel="tag">漏洞复现</a></li></ul>
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<h1 class="header-author js-mobile-header hide"><a href="/" title="回到主页">yyp0</a></h1>
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<header id="header" class="inner">
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</hgroup>
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<ul>
<li><a href="/">主页</a></li>
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<article id="post-漏扫开发" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/29/%E6%BC%8F%E6%89%AB%E5%BC%80%E5%8F%91/" class="article-date">
<time datetime="2020-05-29T13:34:59.000Z" itemprop="datePublished">2020-05-29</time>
</a>
</div>
<div class="article-inner">
<input type="hidden" class="isFancy" />
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2020/05/29/%E6%BC%8F%E6%89%AB%E5%BC%80%E5%8F%91/">漏扫开发</a>
</h1>
</header>
<div class="article-entry" itemprop="articleBody">
<p>立个 flag，6.15 之前搞完漏扫。。</p>
</div>
<div class="article-info article-info-index">
<div class="clearfix"></div>
</div>
</div>
</article>
<article id="post-一些Java反序列化漏洞的复现" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/28/%E4%B8%80%E4%BA%9BJava%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E6%BC%8F%E6%B4%9E%E7%9A%84%E5%A4%8D%E7%8E%B0/" class="article-date">
<time datetime="2020-05-28T07:31:54.000Z" itemprop="datePublished">2020-05-28</time>
</a>
</div>
<div class="article-inner">
<input type="hidden" class="isFancy" />
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2020/05/28/%E4%B8%80%E4%BA%9BJava%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E6%BC%8F%E6%B4%9E%E7%9A%84%E5%A4%8D%E7%8E%B0/">一些Java反序列化漏洞的复现</a>
</h1>
</header>
<div class="article-entry" itemprop="articleBody">
<h1 id="Apache-Common-Collections"><a href="#Apache-Common-Collections" class="headerlink" title="Apache Common Collections"></a>Apache Common Collections</h1><p>Apache Common Collections 反序列化造成的 rce 出现在 InvokerTransformer 这个类里，漏洞点是通过 Java 反射机制调用方法：</p>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<ul class="article-tag-list" itemprop="keywords"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/%E6%BC%8F%E6%B4%9E%E5%A4%8D%E7%8E%B0/" rel="tag">漏洞复现</a></li></ul>
</div>
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<a href="/2020/05/28/%E4%B8%80%E4%BA%9BJava%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96%E6%BC%8F%E6%B4%9E%E7%9A%84%E5%A4%8D%E7%8E%B0/#more">more >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<article id="post-Java反序列化" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/26/Java%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96/" class="article-date">
<time datetime="2020-05-26T06:12:22.000Z" itemprop="datePublished">2020-05-26</time>
</a>
</div>
<div class="article-inner">
<input type="hidden" class="isFancy" />
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2020/05/26/Java%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96/">Java反序列化</a>
</h1>
</header>
<div class="article-entry" itemprop="articleBody">
<h1 id="Java序列化原理"><a href="#Java序列化原理" class="headerlink" title="Java序列化原理"></a>Java序列化原理</h1><p>Java 的序列化与反序列化分别是由 ObjectOutputStream 类的 writeObject 方法和 ObejctInputStream 的 readObject 方法实现的</p>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<ul class="article-tag-list" itemprop="keywords"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Java%E5%9F%BA%E7%A1%80/" rel="tag">Java基础</a></li></ul>
</div>
<p class="article-more-link">
<a href="/2020/05/26/Java%E5%8F%8D%E5%BA%8F%E5%88%97%E5%8C%96/#more">more >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<article id="post-ClassLoader与反射" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/24/ClassLoader%E4%B8%8E%E5%8F%8D%E5%B0%84/" class="article-date">
<time datetime="2020-05-24T08:06:03.000Z" itemprop="datePublished">2020-05-24</time>
</a>
</div>
<div class="article-inner">
<input type="hidden" class="isFancy" />
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2020/05/24/ClassLoader%E4%B8%8E%E5%8F%8D%E5%B0%84/">ClassLoader与反射</a>
</h1>
</header>
<div class="article-entry" itemprop="articleBody">
<h2 id="ClassLoader"><a href="#ClassLoader" class="headerlink" title="ClassLoader"></a>ClassLoader</h2><h3 id="什么是类加载器"><a href="#什么是类加载器" class="headerlink" title="什么是类加载器"></a>什么是类加载器</h3><p>类加载器完成的是类加载机制中的类的加载的部分，完成从静态的 .class 文件生成 java.lang.class 对象（可以参照上一篇对 Java 类加载机制的学习</p>
</div>
<div class="article-info article-info-index">
<div class="article-tag tagcloud">
<ul class="article-tag-list" itemprop="keywords"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Java%E5%9F%BA%E7%A1%80/" rel="tag">Java基础</a></li></ul>
</div>
<p class="article-more-link">
<a href="/2020/05/24/ClassLoader%E4%B8%8E%E5%8F%8D%E5%B0%84/#more">more >></a>
</p>
<div class="clearfix"></div>
</div>
</div>
</article>
<article id="post-Java类加载机制" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/23/Java%E7%B1%BB%E5%8A%A0%E8%BD%BD%E6%9C%BA%E5%88%B6/" class="article-date">
<time datetime="2020-05-23T14:40:23.000Z" itemprop="datePublished">2020-05-23</time>
</a>
</div>
<div class="article-inner">
<input type="hidden" class="isFancy" />
<header class="article-header">
<h1 itemprop="name">
<a class="article-title" href="/2020/05/23/Java%E7%B1%BB%E5%8A%A0%E8%BD%BD%E6%9C%BA%E5%88%B6/">Java类加载机制</a>
</h1>
</header>
<div class="article-entry" itemprop="articleBody">
<p>Java从源代码到运行经历了编译和运行的过程，编译就是将源代码编译成字节码的过程，.java 文件被编译成了 .class 文件。运行过程中，.class 文件被 Java 虚拟机解释，经历了类的加载和类的执行两个过程。以下主要阐述 <strong>Java 类的加载</strong>。</p>
</div>
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<ul class="article-tag-list" itemprop="keywords"><li class="article-tag-list-item"><a class="article-tag-list-link" href="/tags/Java%E5%9F%BA%E7%A1%80/" rel="tag">Java基础</a></li></ul>
</div>
<p class="article-more-link">
<a href="/2020/05/23/Java%E7%B1%BB%E5%8A%A0%E8%BD%BD%E6%9C%BA%E5%88%B6/#more">more >></a>
</p>
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</div>
</div>
</article>
<article id="post-文件上传小总结" class="article article-type-post" itemscope itemprop="blogPost">
<div class="article-meta">
<a href="/2020/05/15/%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E5%B0%8F%E6%80%BB%E7%BB%93/" class="article-date">
<time datetime="2020-05-15T08:11:47.000Z" itemprop="datePublished">2020-05-15</time>
</a>
</div>
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<input type="hidden" class="isFancy" />
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<a class="article-title" href="/2020/05/15/%E6%96%87%E4%BB%B6%E4%B8%8A%E4%BC%A0%E5%B0%8F%E6%80%BB%E7%BB%93/">文件上传小总结</a>
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<h2 id="前端校验"><a href="#前端校验" class="headerlink" title="前端校验"></a>前端校验</h2><p>前端校验即客户端校验，一般在前端对文件名检验一次</p>
<figure class="highlight plain"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br><span class="line">4</span><br><span class="line">5</span><br><span class="line">6</span><br><span class="line">7</span><br><span class="line">8</span><br><span class="line">9</span><br><span class="line">10</span><br><span class="line">11</span><br><span class="line">12</span><br><span class="line">13</span><br><span class="line">14</span><br><span class="line">15</span><br></pre></td><td class="code"><pre><span class="line"><script></span><br><span class="line"> var file_arr = ['jpg', 'png', 'txt'];</span><br><span class="line"> function checkfile(filename){</span><br><span class="line"> var pos = filename.indexof('.');</span><br><span class="line"> var file_ext = filename.substr(pos+1);</span><br><span class="line"> for(int i=0; i<arr.length; i++){</span><br><span class="line"> if(file_arr == file_ext)</span><br><span class="line"> return true;</span><br><span class="line"> }</span><br><span class="line"> retun false</span><br><span class="line"> }</span><br><span class="line"></script></span><br><span class="line"><form action="login.php" enctype="multipart/form-data"></span><br><span class="line"> <input type="file" name="upload" onchange=checkfile(this.value)/></span><br><span class="line"></form></span><br></pre></td></tr></table></figure>
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