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<!DOCTYPE html><html lang="zh-CN" data-theme="light"><head><meta charset="UTF-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"><title>Elasticsearch未授权访问 | BaiKer</title><meta name="keywords" content="未授权访问漏洞"><meta name="author" content="BaiKer"><meta name="copyright" content="BaiKer"><meta name="format-detection" content="telephone=no"><meta name="theme-color" content="#ffffff"><meta name="description" content="Elasticsearch未授权访问简介 ElasticSearch是一个基于Lucene的搜索服务器。它提供了一个分布式多用户能力的全文搜索引擎,基于RESTful web接口。Elasticsearch是用Java开发的,并作为Apache许可条款下的开放源码发布,是当前流行的企业级搜索引擎。设计用于云计算中,能够达到实时搜索,稳定,可靠,快速,安装使用方便。 Ela">
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href="/about/"><i class="fa-fw fas fa-heart"></i><span> 关于</span></a></div></div></div></div><div class="post" id="body-wrap"><header class="post-bg" id="page-header" style="background-image: url('https://inews.gtimg.com/newsapp_ls/0/13902369962/0')"><nav id="nav"><span id="blog_name"><a id="site-name" href="/">BaiKer</a></span><div id="menus"><div class="menus_items"><div class="menus_item"><a class="site-page" href="/"><i class="fa-fw fas fa-home"></i><span> 首页</span></a></div><div class="menus_item"><a class="site-page" href="/archives/"><i class="fa-fw fas fa-archive"></i><span> 时间轴</span></a></div><div class="menus_item"><a class="site-page" href="/tags/"><i class="fa-fw fas fa-tags"></i><span> 标签</span></a></div><div class="menus_item"><a class="site-page" href="/categories/"><i class="fa-fw fas fa-folder-open"></i><span> 分类</span></a></div><div class="menus_item"><a class="site-page group" href="javascript:void(0);"><i class="fa-fw fas fa-list"></i><span> 清单</span><i class="fas fa-chevron-down"></i></a><ul class="menus_item_child"><li><a class="site-page child" href="/essay"><span> 随笔</span></a></li></ul></div><div class="menus_item"><a class="site-page" href="/Gallery/"><i class="fa-fw fas fa-images"></i><span> 照片</span></a></div><div class="menus_item"><a class="site-page" href="/link/"><i class="fa-fw fas fa-link"></i><span> 链接</span></a></div><div class="menus_item"><a class="site-page" href="/about/"><i class="fa-fw fas fa-heart"></i><span> 关于</span></a></div></div><div id="toggle-menu"><a class="site-page"><i class="fas fa-bars fa-fw"></i></a></div></div></nav><div id="post-info"><h1 class="post-title">Elasticsearch未授权访问</h1><div id="post-meta"><div class="meta-firstline"><span class="post-meta-date"><i class="far fa-calendar-alt fa-fw post-meta-icon"></i><span class="post-meta-label">发表于</span><time class="post-meta-date-created" datetime="2021-07-28T03:00:08.000Z" title="发表于 2021-07-28 11:00:08">2021-07-28</time><span class="post-meta-separator">|</span><i class="fas fa-history fa-fw post-meta-icon"></i><span class="post-meta-label">更新于</span><time class="post-meta-date-updated" datetime="2021-11-02T05:58:24.738Z" title="更新于 2021-11-02 13:58:24">2021-11-02</time></span><span class="post-meta-categories"><span class="post-meta-separator">|</span><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/">漏洞利用</a><i class="fas fa-angle-right post-meta-separator"></i><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/">服务器应用漏洞</a><i class="fas fa-angle-right post-meta-separator"></i><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/%E5%B8%B8%E8%A7%84%E6%BC%8F%E6%B4%9E/">常规漏洞</a><i class="fas fa-angle-right post-meta-separator"></i><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/%E6%9C%8D%E5%8A%A1%E5%99%A8%E5%BA%94%E7%94%A8%E6%BC%8F%E6%B4%9E/Elasticsearch/">Elasticsearch</a><i class="fas fa-angle-right post-meta-separator"></i><i class="fas fa-inbox fa-fw post-meta-icon"></i><a class="post-meta-categories" href="/categories/%E6%BC%8F%E6%B4%9E%E5%88%A9%E7%94%A8/%E5%B8%B8%E8%A7%84%E6%BC%8F%E6%B4%9E/%E6%9C%AA%E6%8E%88%E6%9D%83%E8%AE%BF%E9%97%AE%E6%BC%8F%E6%B4%9E/">未授权访问漏洞</a></span></div><div class="meta-secondline"><span class="post-meta-separator">|</span><span class="post-meta-wordcount"><i class="far fa-file-word fa-fw post-meta-icon"></i><span class="post-meta-label">字数总计:</span><span class="word-count">727</span><span class="post-meta-separator">|</span><i class="far fa-clock fa-fw post-meta-icon"></i><span class="post-meta-label">阅读时长:</span><span>3分钟</span></span><span class="post-meta-separator">|</span><span class="post-meta-pv-cv" id="" data-flag-title="Elasticsearch未授权访问"><i class="far fa-eye fa-fw post-meta-icon"></i><span class="post-meta-label">阅读量:</span><span id="busuanzi_value_page_pv"></span></span></div></div></div></header><main class="layout" id="content-inner"><div id="post"><article class="post-content" id="article-container"><h2 id="Elasticsearch未授权访问"><a href="#Elasticsearch未授权访问" class="headerlink" title="Elasticsearch未授权访问"></a>Elasticsearch未授权访问</h2><h3 id="简介"><a href="#简介" class="headerlink" title="简介"></a>简介</h3><p> ElasticSearch是一个基于Lucene的搜索服务器。它提供了一个分布式多用户能力的全文搜索引擎,基于RESTful web接口。Elasticsearch是用Java开发的,并作为Apache许可条款下的开放源码发布,是当前流行的企业级搜索引擎。设计用于云计算中,能够达到实时搜索,稳定,可靠,快速,安装使用方便。</p>
<p> Elasticsearch的增删改查操作全部由http接口完。由于Elasticsearch授权模块需要付费,所以免费开源的Elasticsearch可能存在未授权访问漏洞。该漏洞导致,攻击者可以拥有Elasticsearch的所有权限。可以对数据进行任意操作。业务系统将面临敏感数据泄露、数据丢失、数据遭到破坏甚至遭到攻击者的勒索</p>
<h3 id="漏洞特征"><a href="#漏洞特征" class="headerlink" title="漏洞特征"></a>漏洞特征</h3><p>默认端口9200,9300 HTTP协议</p>
<p>返回内容包含<code>You Know,for Search</code></p>
<h2 id="漏洞利用"><a href="#漏洞利用" class="headerlink" title="漏洞利用"></a>漏洞利用</h2><p>如果存在该漏洞则可以访问如下路径,这些路径存在大量敏感信息</p>
<figure class="highlight plaintext"><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><span class="line">16</span><br><span class="line">17</span><br><span class="line">18</span><br><span class="line">19</span><br><span class="line">20</span><br><span class="line">21</span><br><span class="line">22</span><br><span class="line">23</span><br><span class="line">24</span><br><span class="line">25</span><br><span class="line">26</span><br><span class="line">27</span><br><span class="line">28</span><br><span class="line">29</span><br><span class="line">30</span><br><span class="line">31</span><br><span class="line">32</span><br><span class="line">33</span><br><span class="line">34</span><br><span class="line">35</span><br><span class="line">36</span><br><span class="line">37</span><br><span class="line">38</span><br><span class="line">39</span><br><span class="line">40</span><br><span class="line">41</span><br><span class="line">42</span><br><span class="line">43</span><br><span class="line">44</span><br><span class="line">45</span><br></pre></td><td class="code"><pre><span class="line">/_cat</span><br><span class="line">/_cat/allocation</span><br><span class="line">/_cat/shards</span><br><span class="line">/_cat/shards/{index}</span><br><span class="line">/_cat/master</span><br><span class="line">/_cat/nodes</span><br><span class="line">/_cat/tasks</span><br><span class="line">/_cat/indices</span><br><span class="line">/_cat/indices/{index}</span><br><span class="line">/_cat/segments</span><br><span class="line">/_cat/segments/{index}</span><br><span class="line">/_cat/count</span><br><span class="line">/_cat/count/{index}</span><br><span class="line">/_cat/recovery</span><br><span class="line">/_cat/recovery/{index}</span><br><span class="line">/_cat/health</span><br><span class="line">/_cat/pending_tasks</span><br><span class="line">/_cat/aliases</span><br><span class="line">/_cat/aliases/{alias}</span><br><span class="line">/_cat/thread_pool</span><br><span class="line">/_cat/thread_pool/{thread_pools}</span><br><span class="line">/_cat/plugins</span><br><span class="line">/_cat/fielddata</span><br><span class="line">/_cat/fielddata/{fields}</span><br><span class="line">/_cat/nodeattrs</span><br><span class="line">/_cat/repositories</span><br><span class="line">/_cat/snapshots/{repository}</span><br><span class="line">/_cat/templates</span><br><span class="line">/_cat/ml/anomaly_detectors</span><br><span class="line">/_cat/ml/anomaly_detectors/{job_id}</span><br><span class="line">/_cat/ml/trained_models</span><br><span class="line">/_cat/ml/trained_models/{model_id}</span><br><span class="line">/_cat/ml/datafeeds</span><br><span class="line">/_cat/ml/datafeeds/{datafeed_id}</span><br><span class="line">/_cat/ml/data_frame/analytics</span><br><span class="line">/_cat/ml/data_frame/analytics/{id}</span><br><span class="line">/_cat/transforms</span><br><span class="line">/_cat/transforms/{transform_id}</span><br><span class="line">/_river/_searc</span><br><span class="line">/_river/_search 查看数据库敏感信息</span><br><span class="line">/_nodes 查看节点数据</span><br><span class="line">/_plugin/head/ 如有安装head插件 web管理界面</span><br><span class="line">/_search?pretty=true 查询所有index,type</span><br><span class="line">/index/_search 查询某个index下所有type</span><br><span class="line">/index/type/_search?pretty=true 查询某个index下的某个type的所有内容</span><br></pre></td></tr></table></figure>
<h2 id="修复方案"><a href="#修复方案" class="headerlink" title="修复方案"></a>修复方案</h2><p>1.限制IP访问</p>
<p>2.禁止外网访问</p>
<p>3.认证插件安装</p>
<figure class="highlight plaintext"><table><tr><td class="gutter"><pre><span class="line">1</span><br><span class="line">2</span><br><span class="line">3</span><br></pre></td><td class="code"><pre><span class="line">cd /usr/share/elasticsearch/plugins/http-basic //es插件目录下</span><br><span class="line"></span><br><span class="line">wget https://github.com/Asquera/elasticsearch-http-basic/releases/download/v1.1.0/elasticsearch-http-basic-1.1.0.jar //下载es认证插件</span><br></pre></td></tr></table></figure>
<p>在<code>config/elasticsearch.yml</code>为端口添加认证</p>
<figure class="highlight bash"><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></pre></td><td class="code"><pre><span class="line">http.basic.enabled: <span class="literal">true</span></span><br><span class="line">http.basic.log: <span class="literal">false</span> </span><br><span class="line">http.basic.user: <span class="string">"admin"</span> </span><br><span class="line">http.basic.password: <span class="string">"admin"</span> </span><br><span class="line">http.basic.ipwhitelist: [<span class="string">"172.16.18.171"</span>,<span class="string">"172.16.18.114"</span>] </span><br><span class="line">http.basic.xforward: <span class="string">"X-Forwarded-For"</span></span><br><span class="line">http.basic.trusted_proxy_chains: [<span class="string">"172.16.18.114"</span>]</span><br></pre></td></tr></table></figure>
<table>
<thead>
<tr>
<th align="center">配置名</th>
<th align="center">默认值</th>
<th align="center">说明</th>
</tr>
</thead>
<tbody><tr>
<td align="center">http.basic.enabled</td>
<td align="center">true</td>
<td align="center">开关,开启会接管全部HTTP连接</td>
</tr>
<tr>
<td align="center">http.basic.user</td>
<td align="center">“admin”</td>
<td align="center">账号</td>
</tr>
<tr>
<td align="center">http.basic.password</td>
<td align="center">“admin”</td>
<td align="center">密码</td>
</tr>
<tr>
<td align="center">http.basic.ipwhitelist</td>
<td align="center">[“172.16.18.171”,”172.16.18.114”]</td>
<td align="center">白名单内的ip访问不需要通过账号和密码,支持ip和主机名,不支持ip区间或正则</td>
</tr>
<tr>
<td align="center">http.basic.trusted_proxy_chains</td>
<td align="center">[“172.16.18.114”]</td>
<td align="center">信任代理列表</td>
</tr>
<tr>
<td align="center">http.basic.log</td>
<td align="center">false</td>
<td align="center">把无授权的访问事件添加到ES的日志</td>
</tr>
<tr>
<td align="center">http.basic.xforward</td>
<td align="center">“X-Forwarded-For”</td>
<td align="center">记载代理路径的header字段名</td>
</tr>
</tbody></table>
</article><div class="post-copyright"><div class="post-copyright__author"><span class="post-copyright-meta">文章作者: </span><span class="post-copyright-info"><a href="mailto:undefined">BaiKer</a></span></div><div class="post-copyright__type"><span class="post-copyright-meta">文章链接: </span><span class="post-copyright-info"><a href="http://baiker.top/9db3aff65775.html">http://baiker.top/9db3aff65775.html</a></span></div><div class="post-copyright__notice"><span class="post-copyright-meta">版权声明: </span><span class="post-copyright-info">本博客所有文章除特别声明外,均采用 <a href="https://creativecommons.org/licenses/by-nc-sa/4.0/" target="_blank">CC BY-NC-SA 4.0</a> 许可协议。转载请注明来自 <a href="http://baiker.top" target="_blank">BaiKer</a>!</span></div></div><div class="tag_share"><div class="post-meta__tag-list"><a class="post-meta__tags" href="/tags/%E6%9C%AA%E6%8E%88%E6%9D%83%E8%AE%BF%E9%97%AE%E6%BC%8F%E6%B4%9E/">未授权访问漏洞</a></div><div class="post_share"><div class="social-share" data-image="https://inews.gtimg.com/newsapp_ls/0/13902369962/0" data-sites="facebook,twitter,wechat,weibo,qq"></div><link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/social-share.js/dist/css/share.min.css" media="print" onload="this.media='all'"><script src="https://cdn.jsdelivr.net/npm/social-share.js/dist/js/social-share.min.js" defer></script></div></div><nav class="pagination-post" id="pagination"><div class="prev-post pull-left"><a href="/a45b2452a531.html"><img class="prev-cover" src="https://inews.gtimg.com/newsapp_ls/0/13902527485/0" onerror="onerror=null;src='/img/404.jpg'" alt="cover of previous post"><div class="pagination-info"><div class="label">上一篇</div><div class="prev_info">Spring Boot Autuator未授权访问</div></div></a></div><div class="next-post pull-right"><a href="/b5e4a9195b88.html"><img class="next-cover" src="https://inews.gtimg.com/newsapp_ls/0/13902390411/0" onerror="onerror=null;src='/img/404.jpg'" alt="cover of next post"><div class="pagination-info"><div class="label">下一篇</div><div class="next_info">Openssh命令注入漏洞(CVE-2020-15778)</div></div></a></div></nav><div class="relatedPosts"><div class="headline"><i class="fas fa-thumbs-up fa-fw"></i><span>相关推荐</span></div><div class="relatedPosts-list"><div><a href="/a5e49e0e2f90.html" title="Atlassian Crowd 未授权访问漏洞 - 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